CN105422259A

CN105422259A - Two-stroke gasoline engine with catalytic agent, filter screen and valve control over pre-combustion scavenging additionally adopted in scavenging channel

Info

Publication number: CN105422259A
Application number: CN201510798992.1A
Authority: CN
Inventors: 苏克; 叶晓波; 胡靖榕; 富田博
Original assignee: Ningbo Daye Garden Equipment Co Ltd
Current assignee: Ningbo Daye Garden Equipment Co Ltd
Priority date: 2015-11-16
Filing date: 2015-11-16
Publication date: 2016-03-23

Abstract

The invention relates to energy conservation and emission reduction, in particular to a two-stroke gasoline engine with a catalytic agent, a filter screen and valve control over pre-combustion scavenging additionally adopted in a scavenging channel. A valve device synchronous with a crank is a C-shaped ring (56a) with a crank valve (56) on the crank (57), logarithmic pressure rings (56f) are arranged on the two side edges of a small opening of the C-shaped ring (56a), and when the side edges of logarithmic spirals on the two side edges of a small opening of each pressure ring rotate along with the crank and an opening, communicated with a crank case, of the scavenging channel of an air cylinder is opened or closed, the logarithmic spirals with the pressure angles equal at any position are formed, influence air flow and have the buffering effect. A wedge (11b) of the noise-reducing filter screen in the scavenging channel is arranged beside a process strap (55). A catalytic agent roll (59) for emission reduction is arranged at the part, beside the process strap (55), of the scavenging channel and contains platinum, rhodium and indium, has the catalysis effect on gas flowing through the catalytic agent roll, has the noise reducing, filtering and regulating effects, has certain time delay, has the isolation, noise elimination and regulation obstruction effects, ingeniously lowers the noise of gas flow and reduces exhaust of a hydrocarbon compound (HC).

Description

The two-cycle gasoline engine of catalyst filter screen valve control pre-burning scavenging is added in scavenge trunk

The present invention relates to the firing chamber in a kind of fuel-burning equipment and ignition mechanism, especially internal-combustion engine improvement have the firing chamber of function wave and with have active receiving electrode and fine motion discharging electrode internal combustion engine ignition device collocation basis on, and reduce on the petrolic basis of hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt, and to return at logarithmic differentiation isogonal line shirt rim, the piston skirt turbulent flow improved and alter and fall on the petrol engine basis of row, and the two auxiliary ventilating hole narrowing left and right block improved reduces on the basis of the two-stroke gasoline engine of discharge, the tool periodic function gibbs overshoot of further improvement restrains the two stroke engine of ripple Fourier sheet wall and in scavenge trunk, adds the two-cycle gasoline engine of catalyst filter screen valve control pre-burning scavenging, belong to field of internal combustion engine.

Background technique

For the ignition mechanism in fuel-burning equipment, especially gasoline motor spark plug, be widely used in high voltage pulse electric current to be introduced into firing chamber, make the mixed gas sparking of inspiration cylinder and light, and then diffusive combustion break out work done.Between the outside joiner of existing spark plug and the spark cap having rubber jar, sometimes there is loosely loose phenomenon., though be provided with glass-sealing agent to make resistance, only there is impedance the inside of existing spark plug; If the induction reactance of adding and capacitive reactance, form suitable RCL loop, then have the effect more preferably suppressing radio interference.Multiple tracks umbrella rib on insulator also can be improved to saw-tooth shaped cross section by semi-circular cross-section, so that the creepage passage of more insulation and better block rubber jar.The heat radiation of the metal shell of existing spark plug also can further improve.The electrode of existing spark plug, well imagines, has easily coking, easy ablation, single-point arcing, the shortcoming of low temperature difficult point; If electrode innovation for movable, when there being improvement.Moreover it is not original firing chamber has multiple, but out of this world; Except crossing advantage, there is deficiency; Such as wedge-section combustion chamber, its mixed gas undue concentration is at spark plug place, and operating mode seems rough; And for example bathtub section combustion chamber L, the shape of its prolate, make the effectiveness comparison of squish poor, flame travel is also longer, and rate of burning is lower, and period of combustion is long, and rate of explosion is low, and surface to volume ratio F/V is comparatively large, is disadvantageous to HC discharge.And for example bowl-in-piston chamber, hemispherical combustion chamber, fluffy shape firing chamber, and other types firing chamber, as the auxiliary combustion chamber of turbulization, dual ignition plug firing chamber, the firing chamber of plane, each has something to recommend him; But the invention that the mankind aspire after perfection is endless, piston also has very large potentiality to dig.The so-called best geometry of firing chamber and piston is no doubt important, but with engine model adaptation and will arrange in pairs or groups with ignition mechanism, just has preferably effect.Particularly two-stroke gasoline engine is poorer than the fuel economy of four-stroke gasoline engine, and the hydrocarbon emission in tail gas often exceeds standard.Combustion chambers of internal combustion engines and piston and the collocation with ignition mechanism are hard nut to cracks relating to energy-saving and emission-reduction.

Summary of the invention

In order to pursue the perfection of ignition mechanism, the present invention proposes the modification of multiple spark plug as multiple fixed electrode, adds interior induction reactance, changes outer calibration joiner, adds shell radiating fin, and particularly establishes movable and fine motion electrode, in order to improving operating mode, and energy-saving and emission-reduction.Endless Science Explorations also in order to aspire after perfection, the so-called best geometry that the present invention proposes firing chamber is no doubt important, but with engine model adaptation and to arrange in pairs or groups with ignition mechanism, just there is the theory of preferably effect, the suggestion of the method for the collocation of various combustion chambers of internal combustion engines and various ignition mechanism is proposed, function wave firing chamber and the function wave firing chamber with Parabolic convex-concave adaptation are also provided, are beneficial to energy-saving and emission-reduction; Again in Jia Shuanfu shirt rim, piston skirt, and reduce on the petrolic basis of hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt, and return the two auxiliary ventilating hole of altering the petrol engine that falls row and narrowing left and right block at logarithmic differentiation isogonal line shirt rim, the piston skirt turbulent flow improved and reduce on the two-stroke gasoline engine basis of discharging, the two-stroke gasoline engine of the layered scavenging cylinder body of the tool family of parabolas equipotentiality streamline repeatedly improved, has and reduces discharging effect up to standard.

Just the scheme of the invention of multiple progressively Improvement and perfection explains orally in detail in conjunction with multiple diagram below:

The present invention relates to the firing chamber in a kind of fuel-burning equipment and ignition mechanism, especially internal-combustion engine improvement have the firing chamber of function wave and with the matching method of internal combustion engine ignition device having active receiving electrode and fine motion discharging electrode; The described feature of the firing chamber of function wave that has is that its function wave is ad hoc and preferred by each type; The piston area of composition firing chamber is function waveform.

The present invention solves the equation of the technological scheme that its technical problem is taked and modeling method is:

Adopt PRO/ENGINEERWILDFIRE mapping software, newly establish working directory, newly-built part, 2 concentric circles painted by grass.

Open variable cross section scanning (VarSectSweep) instruction, choosing above 2 circles is scanning track and reference locus.

Draw the straight line of parallel 2 disks, length L=(D-d)/2, and corresponding circle edge projection line.

Set up parameter (PARAMETER) 1:C real number (realnumber), can follow according to concrete operating mode assignment between 0.01-1, such as 0.3; C is also referred to as wave height.

Set up parameter (PARAMETER) 2:N integer (integer), can follow according to concrete operating mode choosing value between 2-100, such as 13; N is also referred to as wave number.

Opening relationships (RELATION), namely sinusoidal wave equation of the present invention is:

SDi＝C*SIN(TRAJPAR*360*N)

In above formula, i is dimension figure sequence number; SIN=SINE, sine function; TRAJPAR, lopcus function.

Again then, adopt and rotate, merge, the instructions such as materialization, and assemble with piston piece and merge, be namely modeled as the piston on function corrugated; Again on piston area with spark plug and and intake valve, the position that exhaust valve is corresponding, makes convex-concave; Piston is loaded cylinder body, cylinder cap, be just formed with the firing chamber of function wave.

Again with described equation input CNC machining center, with the punching block of CIMATRO or MASTCAM superzapping cast aluminium alloy, or with milling machine, planer and electric discharge machining; When using electric discharge machining, with described equation input CNC machining center, then to first make tungsten copper electrode; Again with there being the die casting machine of cold pressing chamber or hot pressing room to produce in batches; Machining again.Piston multipurpose material is aluminum alloy ZL109, or AC8A.As racing car or military vehicle under high-end condition, piston near the material of combustor surface or with highly heat-conductive material as silver alloy; Or with exotic material as silver-colored tungsten-copper alloy, even with special highly heat-conductive material as synthetic diamond.

Special needs to be pointed out is, function waveform of the present invention also can adopt other waveform, the slightly round and smooth waveform of such as other multiple mathematical function or other non-precipitous broken line.

Below first state the improvement of ignition mechanism, the improvement stating internal-combustion engine subsequently namely have the firing chamber of function wave and with the matching method of internal combustion engine ignition device having active receiving electrode and fine motion discharging electrode.

For the ignition mechanism in fuel-burning equipment, especially there is the internal combustion engine ignition device of active receiving electrode and fine motion discharging electrode, for easily lighting a fire from fine motion, carbon deposition removal, burn-out proof and changeable electrodes core, and subsidiary gasoline motor spark plug interior induction reactance and outer calibration high pressure coupling piece, for the spark plug that anti-High-frequency Interference and anti-grafting get loose, by with calibration (1a), zigzag fashion umbrella rib (1c), the outer calibration high-voltage coupler (1) of fixing hole (1b) and internal thread, pad (2), the insulator (3) of the multiple tracks umbrella rib with saw-tooth shaped cross section, the interior induction reactance of threaded one end (4) and the threaded the other end (4b) and inductance coil (15), shell (5) with radiating fin, S shape retaining washer (6), containing the glass-sealing agent (7) of resistance, embed steel core (8), discharging electrode bar (9), by electrode tie rod (10), electric discharge cartridge (11), by electrode tip (12), by electrode tip shell (13), formed by electrode tip shell back-up ring (14), it is characterized in that: described discharging electrode bar (9) be provided with screw thread or thread-shaped groove by the head of discharging electrode, namely to discharge cartridge (11) from fine motion and changeable electrodes core in order to assembling, the surrounding place side face of described electric discharge cartridge (11) is provided with side flabellum (11a), the upper end of electric discharge cartridge (11) is provided with wedge (11b), and the lower end of electric discharge cartridge (11) is provided with screw thread or thread-shaped groove (11c).The feature of described side flabellum (11a) has straight fan leaf or spiral wind flabellum, has a slice at least, or multi-disc, particularly 8.Described is connected by the shell (5) of electrode tip shell (13) with band radiating fin by electrode tie rod (10), and described has a slice at least by electrode tie rod (10), or 2, or multi-disc.The circlip groove that the described inside by electrode tip shell (13) is provided with screw thread or thread-shaped groove and can lays by electrode tip shell back-up ring (14).Electric discharge cartridge (11) forms discharging gap with the inside by electrode tip (12) by the basin shape of top and ring sidepiece, and has multiple wedge angle cut out and the thread-shaped groove digging multiple ring week at ring sidepiece at top.The feature of the wedge (11b) of described electric discharge cartridge (11) is provided with the polygonal pyramid dug out at its upper end, particularly criss-cross polygonal pyramid, referring to Figure 43, Figure 44, Figure 45 and Figure 46, or 2 pyramids, or 3 is more than pyramid, the polygonal pyramid of the polygonal star preferably more than 2 stars, be beneficial to the edgetone effect of igniting ion current, make spark plug containing end face and ring side more than in originally large basin shape gap, local adds the gap of polygonal pyramid especially, the position part that fiery karyomorphism is become leaves wall, there is a buffer cells, the impact being stuck near wall residual gas can be avoided, simultaneously, the wedge collision of mixed gas and turbulence effect, add electric discharge cartridge (11) and be subject to the fine motion of electrode tip (12) and effect of trembling, the absolute quantity of the mixed gas in gap is increased, the probability caught fire also increases, in addition, wedge collision and turbulent flow are also conducive to repelling carbon deposit Molecular flow, part in wedge and in basin shape gap has the mixture of liquid liquefaction tendency, not only there is the opportunity of Arc Discharge, and the cydariform electric discharge having electric discharge machining to discharge, thus its comprehensive effect makes sparkover Quality advance, performance of operating condition is better.

Described with calibration (1a), zigzag fashion umbrella rib (1c), the feature of the outer calibration high-voltage coupler (1) of fixing hole (1b) and internal thread is: described is by equal calibration fluting on the electric conductor of described joiner (1) with calibration (1a); At least open a groove, or multiple-grooved; Preferably the number of multiple-grooved is by angle value; Such as, the number of degrees of certain spark plug are 6, then number of slotting is 6; The number of degrees of certain spark plug are 7, then number of slotting is 7.Although the number of degrees of the calorific value of general spark plug, divide into 5-13 by the difference of motor by the internal structure of spark plug, the larger nearlyer cold mould of numerical value, the engine being applicable to high rotating speed high compression ratio uses; Numerical value less more near-thermal type, the engine being applicable to low compression ratio uses; But difficulty judges from the appearance of spark plug, or easily obscures.The beneficial effect that the electric conductor of the joiner of spark plug is slotted has two, and one is that selecting of the number of degrees of the calorific value of spark plug is not easily obscured, and two is make the joiner of the latch capitiform of original Dan Yuan become claw type due to fluting and make latch effect better.The electric conductor of the fluting of described joiner (1) be the spark cap being inserted with rubber or plastic insulation shell be connected with high pressure external connection and in electrically conductive socket in cap.

Described with calibration (1a), zigzag fashion umbrella rib (1c), the further feature of the outer calibration high-voltage coupler (1) of fixing hole (1b) and internal thread is: described zigzag fashion umbrella rib (1c), as Fig. 5, Fig. 6 and Fig. 9, shown in Figure 10, zigzag fashion in the outer part and the angle of axis more slow, the socket in order to spark cap more easily inserts; And the angle of zigzag fashion in the inner part and axis is comparatively steep namely comparatively large, the socket in order to spark cap is not easily deviate from.As Fig. 5, Fig. 6 and Fig. 7, shown in Fig. 8, Fig. 9, described groove depth is the half of joiner overall length; Fixing hole (1b) is located at the one end of not slotting i.e. one end in the inner part, to knock fixing.The internal thread (1d) of described joiner, as Fig. 6, shown in Fig. 1 and Fig. 2, be connected with threaded one end (4), and the insulator (3) of the multiple tracks umbrella rib of retaining washer (2) and band saw-tooth shaped cross section, and the interior induction reactance of threaded one end (4) and the threaded the other end (4b) and inductance coil (15); Threaded one end (4) is connected with inductance coil (15); Inductance coil (15) is connected with the threaded the other end (4b); The threaded the other end (4b) is by the glass-sealing agent (7) containing resistance, and with embedding steel core (8), discharging electrode bar (9) is connected.Described part (4), part (15), part (7), part (8), part (9) insulated body (3) particularly ceramic body surrounded, just meeting coupling capacitive reactance mutually, and described resistance and inductance have the effect of series parallel connection RCL equivalent circuit, allotment suitably, just has the effect of anti-radio interference.Embed steel core (8) and insert discharging electrode bar (9), in order to gaining in strength and heat conduction.Discharging electrode bar (9) or participate in electric discharge directly, or be connected with the electric discharge cartridge (11) that special special material is made.By electrode tie rod (10) at least one or more, or participate in electric discharge directly, or be connected with the electrode tip (12) that is subject to that special special material is made, or through being connected by electrode tip (12) made from special special material by electrode tip shell (13), and install additional by electrode tip shell back-up ring (14).The feature of the insulator (3) of the multiple tracks umbrella rib of described band saw-tooth shaped cross section is, the zigzag fashion of described zigzag fashion umbrella rib and the angle of axis more slow, more easily wrap in order to the rubber of spark cap or plastic insulation shell; And the angle of zigzag fashion in the inner part and axis is comparatively steep namely comparatively large, not easily deviate from order to the rubber of spark cap or plastic insulation shell.The zigzag fashion of described zigzag fashion umbrella rib has the creepage passage of more insulation than original semicircular umbrella rib and can better block rubber jar.The outside of the one end of (namely close to the inner portion discharge side) in the inner part of the insulator (3) of the multiple tracks umbrella rib of described band saw-tooth shaped cross section, is provided with the shell (5) of band radiating fin, and S shape retaining washer (6).The described feature being provided with the shell (5) of band radiating fin is provided with radiating fin (5a), radiating fin (5b), radiating fin (5c), and particularly described radiating fin is hexagonal, or circle.The steel material putting the position of radiating fin of original spark plug has been cut away in vain, and only deposits less cylindrical in cross section.The invention has the beneficial effects as follows: utilize original steel material, make radiating fin originally a part will be retained by the material cut away in vain.Described radiating fin has one at least, or 2,3 or multiple.Radiating fin is that hexagonal benefit has two, and one is be convenient to process with cutter with the hex wrench nut on it, and two is that when being convenient to install, socket wrench can be inserted in deeper and more.

As improvement 1, the present invention improves common single ordinary telegram very cranked electrode (16) especially; It is characterized in that: described cranked electrode (16), as shown in figure 28, by extension (16a), arc portion (16b), turn of bilge (16c) formed, and this three part is equal with the spacing of discharging electrode, thus the discharging gap (20) formed by electrode and discharging electrode, and than original front head, the probability increase that the absolute quantity being conducive to the mixed air in gap increases and catches fire, this is another beneficial effect of the present invention.

As improvement 2, the special modified electrode of the present invention is the electrode (121) having many sides and many folding gaps, as Figure 14 and Fig. 7, Fig. 8, Fig. 9, Figure 10, shown in Figure 11, it is characterized in that not only having aforesaid by extension (16a), arc portion (16b), turn of bilge (16c) formed, this three part is equal with the spacing of discharging electrode, thus forms the discharging gap by electrode and discharging electrode, and than the feature of original front head, also be provided with multiple sharp notch (17) especially, be beneficial to electric discharge; Each electrode stem (10) that is subject to is connected with by electrode (121), and the middle part by electrode (121) has rolls over gap (18) more, is conducive to opening discharge channel.This electrode (121) also can only with half in some firing chamber, to save material.

As improvement 3, the special modified electrode of the present invention is the electrode (21) having many sides and Multiple level, as Figure 15 and Figure 16, Figure 17, shown in Figure 18, it is characterized in that not only having aforesaid by extension (16a), arc portion (16b), turn of bilge (16c) formed, this three part is equal with the spacing of discharging electrode, thus forms the discharging gap by electrode and discharging electrode, and than the feature of original front head, also be provided with multiple sharp notch (17) especially, be beneficial to electric discharge; Each by electrode stem be connected as one by electrode; As shown in figure 18, it is characterized in that: the described two ends making discharging gap (20) at the middle part of the electrode of many sides and Multiple level (21) that have have lower outstanding (19), the bottom of described lower outstanding (19) is lower than discharging electrode top, and its use has added the front of sideflash.Particularly described have the transverse features of the electrode of many sides and Multiple level (21) to be at least a slice, or be more than two panels, such as three.Be preferably multi-disc, in order to formation grid grid dot matrix effect, thus increase the possibility of electric fiery core and cydariform electric discharge.As improvement 4, described has the electrode of many sides and Multiple level (21) or removes single by electrode stem, as shown in Figure 26, Figure 27 and Figure 28, it is characterized in that not only there is aforesaid feature, specialization has single electrode (23) having many sides and Multiple level by electrode stem.Its usefulness is material-saving, and micro-the trembling easily formed between grid grid and favourablely shrug off carbon deposit and favourable discharging gap forms discharge channel.

As improvement 5, the special modified electrode of the present invention is the electrode (22) having the round basin of side and middle part to dig acute angle star, as Figure 19 and Figure 20, Figure 21, shown in Figure 22, Figure 23 and Figure 24, it is characterized in that: have the round basin of side and middle part to dig acute angle star.Not only there is basin shape to have end face not only but also have side, thus added the front of sideflash; Acute angle star has been dug in the middle part of it, or a star, or two stars, or multiple star, preferably five-pointed star.Be conducive to the wedge effect of discharging gap and point discharge effect and form asymmetric multipoint random discharge channel.Its feature particularly acute angle, instead of right angle or obtuse angle.

Though silkworm in spring to dead silk side to the greatest extent, but improve perfect having no limits.Although electrode (12) and electrode shell (13) are by the described screw thread that is provided with by the inside of electrode tip shell (13) or the movable assembling mutually of thread-shaped groove, there are oligodynamics, and block by by electrode tip shell back-up ring (14), can change, also can work, but in order to strengthen jiggle effect further, obtain more preferably fine motion and effect of trembling, be conducive to electric discharge and repel carbon deposit, as improvement 6, the special modified electrode of the present invention (12) for have arc drum (24a) by electrode tip (24), and improve by electrode tip shell (13) for have arc recessed (25a) by electrode tip shell (25), be aided with aforesaid other all, become the internal combustion engine ignition device that another money has active receiving electrode and fine motion discharging electrode.As Figure 36, Figure 37, Figure 38 by electrode tip (24), it is characterized in that described by electrode tip (12) being equipped with arc drum (24a), and many sideshakes (24b).Arc drum (24a) and arc recessed (25a) fine motion match, little the sphere of activities such as 0.1mm can be had up and down, simultaneously, particularly arc drum (24a) recessed relative to arc (25a) can rotate, this is very important, because the recessed rotatability of arc drum is better than the screw thread of original part or thread-shaped groove, therefore during arcing, the trend of its fine setting and carbon deposition removal is more excellent.Described electric discharge cartridge (11) and the inside by electrode tip (24), be analogous to by electrode tip (12), form discharging gap by the basin shape of top and ring sidepiece, and have multiple wedge angle cut out and the thread-shaped groove digging multiple ring week at ring sidepiece at top; That set up is many sideshakes (24b), it is characterized in that being provided with at least one at described ring sidepiece, or 2, or multiple, and particularly 6 through openings, are beneficial to flowing and the discharge carbon deposit of mixed gas.Because the feature of the wedge (11b) of described electric discharge cartridge (11) is provided with the polygonal pyramid dug out at its upper end, particularly criss-cross polygonal pyramid, therefore be conducive to the edgetone effect of igniting ion current, make in the basin shape gap containing end face and ring side of spark plug, local adds the gap of polygonal pyramid especially, the position part that fiery karyomorphism is become leaves wall, there is a buffer cells, the impact being stuck near wall residual gas can be avoided, simultaneously, the many sideshakes (24b) set up, particularly arc drum (24a) recessed relative to arc (25a) can rotate, be conducive to wedge collision and the turbulence effect of mixed gas, add electric discharge cartridge (11) and be subject to the fine motion of electrode tip (24) and effect of trembling, the absolute quantity of the mixed gas in gap is increased, the probability caught fire also increases, in addition, wedge collision and turbulent flow are also conducive to repelling carbon deposit Molecular flow, part in wedge and in basin shape gap has the mixture of liquefaction tendency, not only there is the opportunity of Arc Discharge, and the cydariform electric discharge having electric discharge machining to discharge, thus its comprehensive effect makes sparkover Quality advance, performance of operating condition is better.

Because described multiple improvement can be selected for various type, and also can revise advance angle time on probation and regulate and control high-voltage pulse parameter in the hope of better, Gu Te proposes improvement 7, is make the positive and negative commutation of high electric field pulse and change direction.Although spark-ignition process is very complicated, the mankind still have many aspects not clear so far, and we know that the positive and negative of electricity has Different Effects to discharging electrode with by the loss of electrode.Improving 7 is a kind of methods for reducing export license, is the positive and negative commutation making voltage x current, and this is not difficult to realize with electromagnetism class and electrical type circuit, such as, use astatic multivibrator and differentiator; The number of times or synchronous with engine speed of commutation, or interval, or interval commutation in some periods.

The beneficial effect of ignition mechanism of the present invention is, the beneficial effect of particularly aforesaid multinomial improvement is, is all conducive to increasing the possibility of electric discharge and removes carbon deposit and reduce export license, can select and the collocation of function ripple firing chamber for various type.

The present invention relates to the firing chamber in a kind of fuel-burning equipment and ignition mechanism, especially internal-combustion engine improvement have the firing chamber of function wave and with the matching method of internal combustion engine ignition device having active receiving electrode and fine motion discharging electrode; Combustion-chamber geometry is proposed adaptive and arrange in pairs or groups with ignition mechanism and just have the theory of preferably effect with engine model, the suggestion of the method for the collocation of combustion chambers of internal combustion engines and each ignition mechanism is proposed, function wave firing chamber and the function wave firing chamber with Parabolic convex-concave adaptation are also provided, are beneficial to energy-saving and emission-reduction; The described feature of the firing chamber of function wave that has is: the piston area of composition firing chamber is function waveform, and such as sinusoidal wave equation is:

SDi＝C*SIN(TRAJPAR*360*N)

, in above formula, i is dimension figure sequence number; SIN=SINE, sine function; TRAJPAR is lopcus function;

The function waveform of the piston area of described firing chamber is (32), referring to Figure 47, Figure 48, Figure 50, Figure 52, Figure 53, Figure 53, Figure 55; And the middle part of the function waveform (32) of piston area in described firing chamber is provided with waveform pit (33), it is characterized in that the envelope of described pit is curve, particularly involute, or parabola; The piston of described firing chamber is (31).

The function waveform (32) of the piston area of described firing chamber or other functions, such as involute, parabola, and the round inner vortex adopting post system of coordinates.

As progress, on the function waveform (32) of the piston area of the piston (31) in described firing chamber, be provided with waveform pit (33), also be provided with exhaust protruding (34), and be provided with air inlet pit (35), and be provided with spark pit (36), it is characterized in that: the envelope of described exhaust projection (34) is curve, particularly involute, or parabola, and its projection is in the position near exhaust valve, the projection of exhaust valve and exhaust protruding (34) in other words has overlapping of part or local, projection is thrown on the face vertical with piston movement direction, the envelope of described air inlet pit (35) is curve, particularly involute, or parabola, and its pit is in the position near intake valve, intake valve and the projection of air inlet pit (35) in other words have part or local overlap, projection be throw on the face vertical with piston movement direction, the envelope of described spark pit (36) is curve, particularly involute, or parabola, and its pit is near the position of spark plug, and spark plug and the projection of spark pit (36) in other words has part or overlapping locally, projection is thrown on the face vertical with piston movement direction, referring to Figure 58, Figure 59, Figure 60, Figure 61, Figure 62 and Figure 63.

Or, as improvement, so that general, on the function waveform (32) of the piston area of the piston (31) in described firing chamber, be provided with waveform pit (33), also be provided with exhaust protruding (34), and be provided with air inlet pit (35), and be provided with spark pit (36), it is characterized in that: described exhaust projection (34), and air inlet pit (35), and the envelope of spark pit (36) is all curves, particularly involute, or parabola; And described exhaust projection (34), and air inlet pit (35), and the position of spark pit (36) according to piston centre trisection uniform.

Beneficial effect of the present invention and object are energy-saving and emission-reduction, are conducive to removing carbon deposit and Loss reducing, arrange in pairs or groups and raise the efficiency in function ripple firing chamber, improvement firing chamber operating mode, and can select for various type.But the invention that the mankind aspire after perfection is endless, piston also has very large potentiality to dig.The so-called best geometry of firing chamber and piston is no doubt important, but with engine model adaptation and will arrange in pairs or groups with ignition mechanism, just has preferably effect.Particularly two-stroke gasoline engine is poorer than the fuel economy of four-stroke gasoline engine, and the hydrocarbon emission in tail gas often exceeds standard; Combustion chambers of internal combustion engines and piston and the collocation with ignition mechanism are hard nut to cracks relating to energy-saving and emission-reduction.Again in Jia Shuanfu shirt rim, piston skirt, finally unexpectedly have and reduce discharging effect up to standard.Logarithmic differentiation isogonal line shirt rim, a kind of piston skirt turbulent flow returns alters the petrol engine falling row, containing piston and known firing chamber, spark plug, cylinder cap, cylinder barrel, connecting rod, crankcase, oil pump, lubrication system, oil-fired system, ignition system, cooling system, it is characterized in that: the skirt section of described piston (31) is equipped with two auxiliary shirt rim (37); Described two auxiliary shirt rim (37) be retain original piston do not have on the basis of former two shirt rims of the bilateral of connecting rod pin-and-hole, and have the following of the bilateral of connecting rod pin-and-hole in the skirt section of piston (31), every while add an auxiliary shirt rim, can be described as two auxiliary shirt rim (37); Described two auxiliary shirt rim, it is containing the through hole (43) of base (38), lower fillet (39), side (40), upper fillet (41), the concave arc limit (42) on base, piston and two auxiliary shirt rim, isogonal one section of piston skirt logarithmic differentiation equation is located at shirt rim, it is conducive to auxiliary guiding, additional turbulence is returned and is altered and fall row, and lubrication assistant and heat radiation; Described two auxiliary shirt rim or with aluminum alloy, or with composite material to reduce cylinder prepareding gap.

Described logarithmic differentiation isogonal line shirt rim, the piston skirt turbulent flow that further experiment improves returns alters the petrol engine falling row, it is characterized in that: each auxiliary shirt rim of described two auxiliary shirt rim (37) and described former two shirt rims are all the cylindrical prolongations along outside piston week, and its projection is thrown on the face vertical with piston movement direction along the outside piston week quartering.

Described a kind of petrol engine reducing hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt that further experiment improves, it is characterized in that: each auxiliary shirt rim of described two auxiliary shirt rim (37) than described former two shirt rims along the cylindrical body in outside piston week extend longer, that is, the base (38) of two auxiliary shirt rim is more farther than base distance connecting rod pin-and-hole on the direction of the cylindrical body elongation line along piston of former two shirt rims, namely two auxiliary shirt rim is higher, piston and skirt section longer, its effect is conducive to the guiding length of lengthened piston and auxiliary guiding.

Described a kind of petrol engine reducing hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt that further experiment improves, it is characterized in that: the both sides of described two auxiliary shirt rim (37) are provided with the side (40) of two auxiliary shirt rim, and it connects the base (38) of piston (31) and two auxiliary shirt rim.

Described a kind of petrol engine reducing hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt that further experiment improves, it is characterized in that: the both sides of described two auxiliary shirt rim (37), be provided with the side (40) of the two auxiliary shirt rim on the base (38) connecting piston (31) and two auxiliary shirt rim, the angle of the side (40) of its both sides is greater than 100 degree.

Described a kind of petrol engine reducing hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt that further experiment improves, it is characterized in that: the both sides of described two auxiliary shirt rim (37) are provided with the side (40) of two auxiliary shirt rim, and it connects piston (31) by the upper fillet (41) of the side of two auxiliary shirt rim.

Described a kind of petrol engine reducing hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt that further experiment improves, it is characterized in that: the both sides of described two auxiliary shirt rim (37) are provided with the side (40) of two auxiliary shirt rim, it connects the base (38) of two auxiliary shirt rim by the lower fillet (39) of the side of two auxiliary shirt rim.

Described a kind of petrol engine reducing hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt that further experiment improves, is characterized in that: concave arc limit (42) is established on the base of described two auxiliary shirt rim (37); Described concave arc limit (42) or circular arc, or involute, or parabola, or other functions, fall row in order to auxiliary.

Described a kind of petrol engine reducing hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt that further experiment improves, it is characterized in that: through hole (43) is established in described two auxiliary shirt rim (37), or pit, in order to lubrication assistant and heat radiation.

Described a kind of petrol engine reducing hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt that further experiment improves, it is characterized in that: described two auxiliary shirt rim (37) is gone up and piston is provided with multiple through hole (43), its slightly arrangement in del, there are many rows, the most descending through hole is few, the Kong Yue that more up works is many, in order to lubrication assistant and heat radiation.

Reduce the petrol engine of hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt, unexpectedly have an unexpected effect.A kind of petrol engine reducing hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt, find out through practice for many years, also be the crystallization of domestic and foreign experience, its usefulness is conducive to the guiding length of lengthened piston and auxiliary guiding to make it, it two is that favourable booster action reduces hydrocarbon emission in mixed gas, and it three is favourable lubrication assistant and heat radiation.

Silkworm in spring to dead silk not to the utmost, is improved invention and has no limits; Wear out iron shoes on a rare occasion to obtain, clino-diagonal is warded off in energy-saving and emission-reduction.The present invention relates to the firing chamber in a kind of fuel-burning equipment and ignition mechanism, especially internal-combustion engine improvement have the firing chamber of function wave and with have active receiving electrode and fine motion discharging electrode internal combustion engine ignition device collocation basis on, and reduce on the petrolic basis of hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt, the band scavenging road junction wedge turbulent flow of further improvement returns alters the two-stroke gasoline engine that sheet reduces discharge, belongs to the firing chamber of internal-combustion engine and the technical field of turbulent scavenging.Beneficial effect of the present invention and object are energy-saving and emission-reduction, are conducive to removing carbon deposit and Loss reducing; Arrange in pairs or groups and raise the efficiency in function ripple firing chamber, improvement firing chamber operating mode, in Jia Shuanfu shirt rim, piston skirt, has and reduce discharging effect up to standard, and can select for various type.But the invention that the mankind aspire after perfection is endless, piston and scavenging also have very large potentiality to dig.The so-called best geometry of firing chamber and piston is no doubt important, but with engine model adaptation and will arrange in pairs or groups with ignition mechanism, just has preferably effect.Particularly two-stroke gasoline engine is poorer than the fuel economy of four-stroke gasoline engine, and the hydrocarbon emission in tail gas often exceeds standard; Combustion chambers of internal combustion engines and piston and the collocation with ignition mechanism and scavenging are hard nut to cracks relating to energy-saving and emission-reduction.If reduce the petrol engine of hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt, have an unexpected effect, handlebar discharges 60 grams dropping to 49 grams and can reach 50 grams of target embodiments in other words; So, return with scavenging road junction wedge turbulent flow and alter the two-stroke gasoline engine that sheet reduces discharge, have beyond thought reduction of discharging effect up to standard especially, not only can reach 50 grams of marks, and 39.9 grams can be dropped to, this is up to standard to the reduction of discharging of two-stroke gasoline engine in enormous quantities is outstanding contributions.Everybody knows that the discharge of two-stroke machine often exceeds standard, but nobody can thoroughly solve; This scavenging road junction wedge turbulent flow returns alters sheet, and be add small pieces at the scavenging road junction of two-stroke cylinder, seem simple, but nobody can find out; Be who the unexpected small pieces that will go at the scavenging road junction place of cylinder to burn-on refill up and start the engine and contact with high speed piston.Its usefulness has beyond thought reduction of discharging effect up to standard.Although spark-ignition process and the detailed physical and chemical processes of two-stroke very complicated, the mankind still have many aspects not clear so far, but we perhaps can tentatively think, this scavenging road junction wedge turbulent flow returns alters sheet, turbulent flow is produced at scavenging road junction place's wedge, the possibility channeling to gas handling system is returned to exhaust gases after combustion and has retardation, it seemingly belongs to turbulent flow ventilation, for the known cross flow scavenging of two stroke IC engine, loop scavenging and uniflow scavenging three kinds of ventilation scheme, open an approach of altering sheet at scavenging road junction wedge turbulent flow time that can reduce discharging, referred to as the clino-diagonal of turbulent scavenging.Although the mechanism of its atom level needs to be explored future, it is determined in the application at two-stroke gasoline engine scavenging road junction.

A kind of returning with scavenging road junction wedge turbulent flow alters the two-stroke gasoline engine that sheet reduces discharge, comprise cylinder body, and known firing chamber, spark plug, cylinder cap, piston, connecting rod, crankcase, oil pump, lubrication system, oil-fired system, ignition system, cooling system, gas handling system, described cylinder body (44) is the cylinder body (44) at the scavenging road junction (45) centrally symmetrically containing left and right each on the cylinder chamber of dress piston of two-stroke gasoline engine, it is characterized in that: on the scavenging road junction (45) of the left and right each of the symmetry of described cylinder body (44), each each ground, left and right is symmetrically provided with wedge turbulent flow time and alters sheet (46), further improvement, utilize the feature that the logarithmic spiral tool pressure angle of higher mathematics is equal, the sheet added is made to have a section of logarithmic spiral, the mixed air-flow then gushed thereon is just easily steady, produce turbulent flow in order to utilizing equal pressure angle at scavenging road junction place to return alter to reduce discharge to block waste gas.

Get scavenging road junction logarithmic differentiation equation turbulent flow to return and alter sheet and fall one section that row's two rushes the main body of petrolic described sheet, set up differential equation d ρ/d θ=k ρ:

If polar equation ρ=ρ (θ), because wanting pressure angle λ equal everywhere, therefore tg λ=constant, makes tg λ=k,

By pressure angle formula tg λ=ρ '/ρ,

Just there is ρ '/ρ=k,

Differential it, just have differential equation d ρ/d θ=k ρ.

Solve d ρ/d θ=k ρ, both sides integration after variables separation:

∫ d ρ/ρ=∫ kd θ, because of ρ > 0, is easy to get:

lnρ＝kθ+C，

Namely:

ρ＝Ae ^kθ+c＝e ^c.e ^kθ＝Ae ^kθ

Adopt PRO/ENGINEERWILDFIRE mapping software, newly establish working directory, newly-built part,

Opening relationships (RELATION), namely equation of the present invention is:

Logarithmic curve:

z＝0

x＝10*t

y＝log(10*t+0.0001)

Make logarithmic curve:

Again then, adopt and rotate, merge, the instructions such as materialization, and assemble with workpiece and merge, get final product modeling:

Use described equation and the modeling of PRO/ENGINEERWILDFIRE institute again, input CNC machining center, with CIMATRO or MASTCAM, the punching block of superzapping cast aluminium alloy, or with milling machine, planer and electrical spark working work auxiliary; When using electric discharge machining, with described equation input CNC machining center, then will first make tungsten copper electrode, with having, the lathe of three-dimensional rotation head is more satisfactory, as more satisfactory with Switzerland's Xia meter Er machine; Again with there being the die casting machine of cold pressing chamber or hot pressing room to produce in batches; Machining again.Workpiece multipurpose material is aluminum alloy ZL109, or AC8A: be welded on piston shirt rim with the sheet of another system, also can use: but polishing trouble is time-consuming.

A kind of scavenging road junction logarithmic differentiation equation turbulent flow is returned and is altered the two-stroke gasoline engine that row falls in sheet, containing cylinder body, and known firing chamber, spark plug, cylinder cap, piston, connecting rod, crankcase, oil pump, lubrication system, oil-fired system, ignition system, cooling system, gas handling system, described cylinder body (44) is two cylinder bodies (44) rushing the petrolic scavenging road junction (45) centrally symmetrically containing left and right each on the cylinder chamber of dress piston, it is characterized in that: on the scavenging road junction (45) of the left and right each of the symmetry of described cylinder body (44), each each ground, left and right is symmetrically provided with wedge turbulent flow time and alters sheet (46), its main body is pressure angle close to a section of the equal logarithmic spiral by logarithmic differentiation equation, block waste gas and return in order to producing turbulent flow at scavenging road junction place and alter to reduce discharge.

Return by a kind of scavenging road junction logarithmic differentiation equation turbulent flow described in logarithmic differentiation correction and alter the two-stroke gasoline engine that row falls in sheet, it is characterized in that: described wedge turbulent flow returns alters the side pressing close to the outlet of the scavenging air belt of piston closing on lower dead center that sheet (46) is located at the bottom of the bottom at the scavenging road junction (45) of cylinder body, a section of its tool logarithmic spiral.

Return by a kind of scavenging road junction logarithmic differentiation equation turbulent flow described in logarithmic differentiation correction and alter the two-stroke gasoline engine that row falls in sheet, it is characterized in that: described wedge turbulent flow returns alters sheet (46) and comprise wedge turbulent flow and return scavenging road junction (47), the wedge turbulent flow of altering sheet and return wedge (48), the wedge turbulent flow of altering the logical scavenging road junction of sheet and return and alter that returning of the logical scavenging road junction of sheet alters grid (49), wedge turbulent flow returns the turbulent shield (50) of altering the logical scavenging road junction of sheet, a section of equal tool logarithmic spiral.

Return by a kind of scavenging road junction logarithmic differentiation equation turbulent flow described in logarithmic differentiation correction and alter the two-stroke gasoline engine that row falls in sheet, it is characterized in that: described wedge turbulent flow returns alters sheet (46) slightly in inclined wedge-shaped, the large end of described inclined wedge-shaped is connected to the side pressing close to the outlet of the scavenging air belt of piston closing on lower dead center of the bottom of the bottom at the scavenging road junction (45) of cylinder body, a section of its tool logarithmic spiral.

Return by a kind of scavenging road junction logarithmic differentiation equation turbulent flow described in logarithmic differentiation correction and alter the two-stroke gasoline engine that row falls in sheet, it is characterized in that: described wedge turbulent flow returns alters wedge turbulent flow that sheet (46) comprises and go back to the scavenging road junction (47) of altering sheet and be located at described wedge turbulent flow and go back to the top of altering sheet (46), that is returns one section that alters its tool logarithmic spiral of small end of the inclined wedge-shaped of sheet (46) at wedge turbulent flow.

Return by a kind of scavenging road junction logarithmic differentiation equation turbulent flow described in logarithmic differentiation correction and alter the two-stroke gasoline engine that row falls in sheet, it is characterized in that: described wedge turbulent flow returns alters described wedge turbulent flow that sheet (46) comprises and return the wedge (48) of altering the logical scavenging road junction of sheet and be located at wedge turbulent flow and return the bottom connection of altering the inner side of sheet (46) and the bottom with the scavenging road junction (45) of cylinder body, a section of its tool logarithmic spiral of described inner side.

Return by a kind of scavenging road junction logarithmic differentiation equation turbulent flow described in logarithmic differentiation correction and alter the two-stroke gasoline engine that row falls in sheet, it is characterized in that: described wedge turbulent flow returns alters described wedge turbulent flow that sheet (46) comprises and return and alter returning of the logical scavenging road junction of sheet and alter grid (49) and be located at wedge turbulent flow and go back to the intersection of altering the side of the outlet of the scavenging air belt at the scavenging road junction (45) of sheet and cylinder body, a section of its tool logarithmic spiral.

Return by a kind of scavenging road junction logarithmic differentiation equation turbulent flow described in logarithmic differentiation correction and alter the two-stroke gasoline engine that row falls in sheet, it is characterized in that: described wedge turbulent flow returns alters described wedge turbulent flow that sheet (46) comprises and return and alter returning of the logical scavenging road junction of sheet and alter grid (49) and be located at wedge turbulent flow and go back to the chamfering place of altering the side of the outlet of the scavenging air belt at the scavenging road junction (45) of sheet and cylinder body, a section of its tool logarithmic spiral.

Return by a kind of scavenging road junction logarithmic differentiation equation turbulent flow described in logarithmic differentiation correction and alter the two-stroke gasoline engine that row falls in sheet, it is characterized in that: described wedge turbulent flow returns alters described wedge turbulent flow that sheet (46) comprises and return and alter returning of the logical scavenging road junction of sheet and alter grid (49) and be located at wedge turbulent flow and go back to the rounding place of altering the side of the outlet of the scavenging air belt at the scavenging road junction (45) of sheet and cylinder body,, a section of its tool logarithmic spiral.

Return by a kind of scavenging road junction logarithmic differentiation equation turbulent flow described in logarithmic differentiation correction and alter the two-stroke gasoline engine that row falls in sheet, it is characterized in that: described wedge turbulent flow returns the wedge turbulent flow that is provided with of altering sheet (46) above and returns the turbulent shield (50) of altering the logical scavenging road junction of sheet, its one end be located at wedge turbulent flow and go back to the chamfering place of altering sheet crossing with the side of the outlet of the scavenging air belt at the scavenging road junction (45) of cylinder body and be connected, and the small end that is top that its other end and wedge turbulent flow time alters sheet alters the inclined wedge-shaped of sheet (46) for turbulent with wedge time is connected; And one section of its tool logarithmic spiral above of described turbulent shield.

New a kind of two auxiliary ventilating hole narrowing left and right block reduces the two-stroke gasoline engine of discharge, containing left block, right block, piston, and known firing chamber, spark plug, cylinder body, cylinder cap, cylinder barrel, connecting rod, crankcase, oil pump, lubrication system, oil-fired system, ignition system, cooling system, described cylinder body (44) is two cylinder bodies (44) rushing the petrolic scavenging road junction (45) centrally symmetrically containing left and right each on the cylinder chamber of dress piston, on the scavenging road junction (45) of the left and right each of the symmetry of described cylinder body (44), each each ground, left and right is symmetrically provided with wedge turbulent flow time and alters sheet (46), the skirt section of described piston is equipped with two auxiliary shirt rim (37), described two auxiliary shirt rim (37) be retain original piston do not have on the basis of former two shirt rims of the bilateral of connecting rod pin-and-hole, and have the following of the bilateral of connecting rod pin-and-hole in the skirt section of piston (31), every while add an auxiliary shirt rim, can be described as two auxiliary shirt rim (37), described two auxiliary shirt rim, it is containing base (38), lower fillet (39), side (40), upper fillet (41), the concave arc limit (42) on base, the through hole (43) of piston and two auxiliary shirt rim, described piston is characterized in that the logarithm line of piston skirt logarithmic differentiation equation also claims isogonal one section to be located at shirt rim, the limit of the part of its shirt rim is pressure angle close to a section of the equal logarithmic spiral by logarithmic differentiation equation, utilize the feature that the logarithmic spiral tool pressure angle of higher mathematics is equal, the sheet added is made to have a section of logarithmic spiral, the mixed air-flow then gushed thereon is just easily steady, produce turbulent flow in order to utilizing equal pressure angle at scavenging road junction place to return alter to reduce discharge to block waste gas, described two auxiliary shirt rim or with aluminum alloy, or with composite material to reduce cylinder prepareding gap, using CNC machining center, will first make tungsten copper electrode, with there being the lathe of three-dimensional rotation head to assist molding, then producing in batches with die casting machine, machining and plating again, described left block and right block is characterized in that: described left block and right block are respectively provided with and change the little two auxiliary ventilating hole narrowed, described two auxiliary ventilating hole is located at left block and is just called left two auxiliary ventilating hole (51b), described two auxiliary ventilating hole is located at right block and is just called right two auxiliary ventilating hole (52b), described left block and right block assemble Face to face, and with being connected above of the scavenging air belt of cylinder body, the two auxiliary ventilating hole (51b) in a left side that two scavenging air belts of described cylinder body are provided with described left block (51) is respectively connected with the two auxiliary ventilating hole (52b) in the right side that described right block (52) is provided with, it is the two auxiliary ventilating hole of the left and right block narrowed, the two auxiliary shirt rim (37) be equipped with when described two auxiliary ventilating hole and the skirt section of piston run to described in piston lower close to time, just be beneficial to and narrow local volumetric, strengthen local air flow pressure and flow velocity and additional turbulence to return and alter and fall row.

The described a kind of two auxiliary ventilating hole narrowing left and right block improved further again reduces the two-stroke gasoline engine of discharge, it is characterized in that: the wedge turbulent flow time that upper each each ground, left and right symmetrically, scavenging road junction (45) of the left and right each of the described two auxiliary ventilating hole narrowing left and right block and the symmetry of described cylinder body (44) is provided with alters both adapteds of sheet (46), has and falls row's effect.

The described a kind of two auxiliary ventilating hole narrowing left and right block improved further again reduces the two-stroke gasoline engine of discharge, it is characterized in that: both adapteds of the two auxiliary shirt rim (37) that the skirt section of the described two auxiliary ventilating hole and described piston that narrow left and right block is equipped with, have and fall row's effect.

The described a kind of two auxiliary ventilating hole narrowing left and right block improved further again reduces the two-stroke gasoline engine of discharge, it is characterized in that: the described two auxiliary ventilating hole narrowing left and right block, the wedge turbulent flow be provided with upper each each ground, left and right symmetrically, the scavenging road junction (45) of the left and right each of the symmetry of described cylinder body (44) returns alters sheet (46), and with two auxiliary shirt rim (37) three's adapted that the skirt section of described piston is equipped with, have and more fall row's effect.

The described a kind of two auxiliary ventilating hole narrowing left and right block improved further again reduces the two-stroke gasoline engine of discharge, it is characterized in that: the rear wall (51f) of the two auxiliary ventilating hole (51b) in the left side that the described described left block (51) narrowing the two auxiliary ventilating hole of left and right block is provided with is thicker, thinnest part is minimum is greater than 2mm, and have the oblique angle being greater than 10 degree, so that root is thicker and increase strong

The described a kind of two auxiliary ventilating hole narrowing left and right block improved further again reduces the two-stroke gasoline engine of discharge, it is characterized in that: the described described left block (51) narrowing the two auxiliary ventilating hole of left and right block is provided with 4 reinforcement arm pawls (51e), and the rectangular cross-section of each reinforcement arm pawl is thicker, thinnest part is minimum is greater than 2mm, so that cross section is thicker and gain in strength.

The described a kind of two auxiliary ventilating hole narrowing left and right block improved further again reduces the two-stroke gasoline engine of discharge, it is characterized in that: be provided with long stiffening rib (51c) near the back side of the two auxiliary ventilating hole (51b) in the left side that the described described left block (51) narrowing the two auxiliary ventilating hole of left and right block is provided with, narrow two larger local compression caused by auxiliary ventilating hole to gain in strength to resist.

The described a kind of two auxiliary ventilating hole narrowing left and right block improved further again reduces the two-stroke gasoline engine of discharge, it is characterized in that: be provided with short stiffening rib (51d) near the back side of the pit of the two auxiliary ventilating hole (51b) in the left side that the described described left block (51) narrowing the two auxiliary ventilating hole of left and right block is provided with, narrow two larger local compression caused by auxiliary ventilating hole to gain in strength to resist.

The described a kind of two auxiliary ventilating hole narrowing left and right block improved further again reduces the two-stroke gasoline engine of discharge, it is characterized in that: the two auxiliary ventilating hole (52b) in the right side that the described described right block (52) narrowing the two auxiliary ventilating hole of left and right block is provided with is pit, approximately two with the left side that described left block (51) the is provided with auxiliary ventilating hole (51b) of length, width and height of its pit is identical, to gain in strength, resist and narrow two larger local compression caused by auxiliary ventilating hole.

The described a kind of two auxiliary ventilating hole narrowing left and right block improved further again reduces the two-stroke gasoline engine of discharge, it is characterized in that: the two auxiliary ventilating hole (52b) in the right side that the described described right block (52) narrowing the two auxiliary ventilating hole of left and right block is provided with is pit, approximately two with the left side that described left block (51) the is provided with auxiliary ventilating hole (51b) of length, width and height of its pit is identical, length, width and height in 1E33 type are for being not more than 19x7x4.8mm, local volumetric is narrowed with convenient, strengthen local air flow pressure and flow velocity and additional turbulence to return and alter and fall row.

Two air flues are had to reduce the two-stroke gasoline engine of discharge, containing left block, right block, piston, firing chamber, spark plug, cylinder body, cylinder cap, cylinder barrel, connecting rod, crankcase, oil pump, lubrication system, oil-fired system, ignition system, cooling system, described cylinder body (44) is two cylinder bodies (44) rushing the petrolic scavenging road junction (45) centrally had containing left and right symmetrically on the cylinder chamber of dress piston, on the scavenging road junction (45) that the left and right of the symmetry of described cylinder body (44) has, each each ground, left and right is symmetrically provided with wedge turbulent flow time and alters sheet (46), the skirt section of described piston is equipped with two auxiliary shirt rim (37), described two auxiliary shirt rim (37) be retain original piston do not have on the basis of former two shirt rims of the bilateral of connecting rod pin-and-hole, and have the following of the bilateral of connecting rod pin-and-hole in the skirt section of piston (31), every while add an auxiliary shirt rim, so be referred to as two auxiliary shirt rim (37), described two auxiliary shirt rim, it is containing base (38), lower fillet (39), side (40), upper fillet (41), the concave arc limit (42) on base, the through hole (43) of piston and two auxiliary shirt rim, the logarithm line of its piston skirt logarithmic differentiation equation of described piston also claims isogonal one section to be located at shirt rim, the limit of the part of its shirt rim is pressure angle close to a section of the equal logarithmic spiral by logarithmic differentiation equation, utilize the feature that the logarithmic spiral tool pressure angle of higher mathematics is equal, wedge turbulent flow is returned and alters one section that blade has logarithmic spiral, the mixed air-flow then gushed thereon is just easily steady, produce turbulent flow in order to utilizing equal pressure angle at scavenging road junction place to return alter to reduce discharge to block waste gas, described two auxiliary shirt rim or with aluminum alloy, or with composite material to reduce cylinder prepareding gap, using CNC machining center, will first make tungsten copper electrode, with there being the lathe of three-dimensional rotation head to assist molding, then producing in batches with die casting machine, machining and plating again, described left block and right block are respectively provided with and change the little two auxiliary ventilating hole narrowed, described two auxiliary ventilating hole is located at left block and is just called left two auxiliary ventilating hole (51b), described two auxiliary ventilating hole is located at right block and is just called right two auxiliary ventilating hole (52b), described left block and right block assemble Face to face, and with being connected above of the scavenging air belt of cylinder body, the two auxiliary ventilating hole (51b) in a left side that two scavenging air belts of described cylinder body are provided with described left block (51) is respectively connected with the two auxiliary ventilating hole (52b) in the right side that described right block (52) is provided with, it is the two auxiliary ventilating hole of the left and right block narrowed, the two auxiliary shirt rim (37) be equipped with when described two auxiliary ventilating hole and the skirt section of piston run to described in piston lower close to time, just be beneficial to and narrow local volumetric, strengthen local air flow pressure and flow velocity and additional turbulence to return and alter and fall row, the wedge turbulent flow time that upper each each ground, left and right symmetrically, scavenging road junction (45) of the left and right each of the described two auxiliary ventilating hole narrowing left and right block and the symmetry of described cylinder body (44) is provided with alters both adapteds of sheet (46), both adapteds of the two auxiliary shirt rim (37) that the skirt section of the described two auxiliary ventilating hole and described piston that narrow left and right block is equipped with, the described two auxiliary ventilating hole narrowing left and right block, the wedge turbulent flow that upper each left and right symmetrically, the scavenging road junction (45) had with the left and right of the symmetry of described cylinder body (44) is provided with having returns alters sheet (46), and with two auxiliary shirt rim (37) three's adapted that the skirt section of described piston is equipped with, have and fall row's effect, the rear wall (51f) of the two auxiliary ventilating hole (51b) in the left side that the described left block (51) narrowing the two auxiliary ventilating hole of left and right block is provided with is thicker, thinnest part is no less than 1.5mm, and have the oblique angle being greater than 12 degree, so that root is thicker and gain in strength, the described left block (51) narrowing the two auxiliary ventilating hole of left and right block is provided with multiple reinforcement arm pawl (51e), and the rectangular cross-section of each reinforcement arm pawl is thicker, and thinnest part is greater than 1.5mm, so that cross section is thicker and gain in strength, the back side of the two auxiliary ventilating hole (51b) in the left side that the described left block (51) narrowing the two auxiliary ventilating hole of left and right block is provided with is provided with long stiffening rib (51c), narrows two larger local compression caused by auxiliary ventilating hole to gain in strength to resist, the back side of the pit of the two auxiliary ventilating hole (51b) in the left side that the described left block (51) narrowing the two auxiliary ventilating hole of left and right block is provided with is provided with short stiffening rib (51d), narrows two larger local compression caused by auxiliary ventilating hole to gain in strength to resist, the two auxiliary ventilating hole (52b) in the right side that the described right block (52) narrowing the two auxiliary ventilating hole of left and right block is provided with is pit, the length, width and height of its pit are identical with the two auxiliary ventilating hole (51b) in a left side for described left block (51), to gain in strength, resist and narrow two larger local compression caused by auxiliary ventilating hole, the two auxiliary ventilating hole (52b) in the right side that the right block (52) narrowing the two auxiliary ventilating hole of left and right block improved is provided with is pit, the two auxiliary ventilating hole (51b) in the left side that the length, width and height of its pit and described left block (51) are provided with is close, and the length, width and height on the motor of 1E36F type and single-cylinder double stroke cylinder diameter 36 millimeters are for being not more than 20x7.2x4.8mm, and on the right side of 1E33F type, the length, width and height of the pit of two auxiliary ventilating hole (52b) are 18.7x3.3x6.7mm, the pit length, width and height of the two auxiliary ventilating hole (51b) in a left side of 1E33F type are 13x2.2x5.5mm, narrow local volumetric with convenient, strengthen local air flow pressure and flow velocity and additional turbulence and return and alter and fall row, on the cylinder chamber of the dress piston of the cylinder body (44) of two-stroke gasoline engine, centrally be provided with the scavenging road junction (45) that left and right has symmetrically, on the scavenging road junction (45) that the left and right of the symmetry of described cylinder body (44) has, each each ground, left and right is symmetrically provided with scavenging air belt partition wall (53), thus described scavenging road junction (45) is divided into two, and then form the revolutionary improvement that substantial two-stroke gasoline engine list scavenging air belt changes the many scavenging air belts of two-stroke gasoline engine into, in order to retardance, many and waste gas returns and alters less thus reduce discharge, described scavenging air belt partition wall (53) is by the foot of a wall portion (53a), wall end (53d), front metope (53c), rear metope (53b) formed, the front metope (53c) of described scavenging air belt partition wall (53) and rear metope (53b) extend along the piston movement direction of the cylinder chamber of the dress piston of described cylinder body (44), the foot of a wall portion (53a) of described scavenging air belt partition wall (53) and being connected in the inner wall section of cylinder body (44) of described scavenging road junction (45), wall end (53d) and the piston sliding contact of described scavenging air belt partition wall (53), thus be formed with the two-stroke gasoline engine that two air flues reduce discharge.

Two air flues are had to reduce the two-stroke gasoline engine of discharge described in further improvement is perfect, it is characterized in that, the foot of a wall portion (53a) of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) is provided with is located at the middle part of scavenging air belt thus described scavenging road junction (45) is roughly partially divided into two.

Update perfect described two air flues that have and reduce the two-stroke gasoline engine of discharge, it is characterized in that, the foot of a wall portion (53a) of the scavenging air belt partition wall (53) that upper each each two ground, left and right symmetrically, the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) are provided with is described scavenging road junction (45) roughly partially one dividing into three.

Update perfect described two air flues that have and reduce the two-stroke gasoline engine of discharge, it is characterized in that, the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) is provided with from described scavenging road junction (45) the foot of a wall portion (53a) the extending radially out along piston that the inner wall section of cylinder body (44) is connected.

Update perfect described two air flues that have and reduce the two-stroke gasoline engine of discharge, it is characterized in that, the upper each scavenging air belt partition wall (53) that each ground, left and right is provided with symmetrically in the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) stretches out along the radial direction of piston from described scavenging road junction (45) angularly in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected.

Update perfect described two air flues that have and reduce the two-stroke gasoline engine of discharge, it is characterized in that, the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) is provided with from described scavenging road junction (45) in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along the radial direction with piston angularly from 3 degree to 29 degree stretching out.

Update perfect described two air flues that have and reduce the two-stroke gasoline engine of discharge, it is characterized in that, the upper each scavenging air belt partition wall (53) that each ground, left and right is provided with symmetrically in the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) stretches out by 12.7 degree along the radial direction with piston from described scavenging road junction (45) angularly in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected.

Update perfect described two air flues that have and reduce the two-stroke gasoline engine of discharge, it is characterized in that, the front metope (53c) of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) is provided with stretches out along the radial direction with piston in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along from described scavenging road junction (45) mutually angularly with rear metope (53b), the angle of described front metope (53c) and rear metope (53b) mutual 1-5 degree.

Update perfect described two air flues that have and reduce the two-stroke gasoline engine of discharge, it is characterized in that, the front metope (53c) of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) is provided with and rear metope (53b) along from described scavenging road junction (45) in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along with the extending radially out of piston, described front metope (53c) and rear metope (53b) are arc shaped surfaces.

Update perfect described two air flues that have and reduce the two-stroke gasoline engine of discharge, it is characterized in that, the front metope (53c) of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) is provided with and rear metope (53b) along from described scavenging road junction (45) in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along with the extending radially out of piston, described front metope (53c) and rear metope (53b) are the equiangular spirals that pressure angle is equal everywhere is also logarithmic spiral face.

Usefulness of the present invention: a kind of two-stroke gasoline engine having two air flues to reduce discharge, there is beyond thought reduction of discharging effect up to standard, not only can reach 50 grams of marks, and 39.9 grams can be dropped to, certainly this is only fragmentary data, and surplus is comparatively large, and safety coefficient is large, waster is few, and this is up to standard significant to the reduction of discharging of two-stroke gasoline engine in enormous quantities; Multiple improvement integrated application, better its of effect is beneficial to and produces turbulent flow at scavenging road junction place and return to alter reduce discharge to block waste gas; The described a kind of two auxiliary ventilating hole narrowing left and right block improved further again reduces the two-stroke gasoline engine of discharge, its ad hoc described two auxiliary ventilating hole narrowing left and right block, the wedge turbulent flow be provided with one ground, upper each left and right symmetrically, the scavenging road junction (45) of the left and right each of the symmetry of described cylinder body (44) returns alters sheet (46), and the two auxiliary shirt rim (37) to be equipped with the skirt section of described piston and two air flue adapteds, there is more row's effect of falling because two air flues are beneficial to than single air flue, the anxious poly-waste gas turbulent flow group restrained to be dispersed out.The two stroke engine of tool periodic function gibbs overshoot convergence ripple Fourier sheet wall is that the top of the scavenging air belt partition wall (53) that the upper each each ground, left and right symmetrically, scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) is provided with is provided with Fourier function breach (53j), and having gibbs overshoot to approach rectangle at the tie point of described Fourier function breach (53j) and described the foot of a wall portion (53a), Fourier function breach (53j) is containing being approximately the sinusoidal odd function of Fourier and the approximate ventilating hole being used as the wave only having single circular frequency that imitative fourier series draws.The scavenging road junction (45) that the two stroke engine of described tool periodic function gibbs overshoot convergence ripple Fourier sheet wall also has in the left and right of the symmetry of described cylinder body (44) is provided with tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54), the stifled high-wall that described tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) is a side from scavenging road junction (45) and stretches out along the circumferencial direction in the piston cylinder of cylinder body (44).The bottom of high-wall be provided with multiple fluctuating convex-concave (54k) its be approximately the frequency spectrum of decaying gradually that imitative fourier series draws multiple from diminishing greatly from the close spike of thin change.More row's effect of falling is had to be beneficial to and the waste gas turbulent flow group of anxious poly-convergence to be dispersed open not, and intimate air trajectory.

The two stroke engine of tool periodic function gibbs overshoot convergence ripple Fourier sheet wall, containing left block, right block, piston, firing chamber, spark plug, cylinder body, cylinder cap, cylinder barrel, connecting rod, crankcase, oil pump, lubrication system, oil-fired system, ignition system, cooling system, described cylinder body (44) is centrally provided with the scavenging road junction (45) that left and right has symmetrically on the cylinder chamber of the dress piston of two stroke engine, namely on the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44), each each ground, left and right is symmetrically provided with wedge turbulent flow time and alters sheet (46), the skirt section of described piston is equipped with two auxiliary shirt rim (37), described two auxiliary shirt rim (37) be retain original piston do not have on the basis of former two shirt rims of the bilateral of connecting rod pin-and-hole, and have the following of the bilateral of connecting rod pin-and-hole in the skirt section of piston (31), every while add an auxiliary shirt rim, so be referred to as two auxiliary shirt rim (37), described two auxiliary shirt rim, it is containing base (38), lower fillet (39), side (40), upper fillet (41), the concave arc limit (42) on base, the through hole (43) of piston and two auxiliary shirt rim, the logarithm line of its piston skirt logarithmic differentiation equation of described piston also claims isogonal one section to be located at shirt rim, the limit of the part of its shirt rim is pressure angle close to a section of the equal logarithmic spiral by logarithmic differentiation equation, utilize the feature that the logarithmic spiral tool pressure angle of higher mathematics is equal, wedge turbulent flow is returned and alters one section that blade has logarithmic spiral, the mixed air-flow then gushed thereon is just easily steady, produce turbulent flow in order to utilizing equal pressure angle at scavenging road junction place to return alter to reduce discharge to block waste gas, described two auxiliary shirt rim or with aluminum alloy, or with composite material to reduce cylinder prepareding gap, using CNC machining center, will first make tungsten copper electrode, with there being the lathe of three-dimensional rotation head to assist molding, then producing in batches with die casting machine, machining and plating again, described left block and right block are respectively provided with and change the little two auxiliary ventilating hole narrowed, described two auxiliary ventilating hole is located at left block and is just called left two auxiliary ventilating hole (51b), described two auxiliary ventilating hole is located at right block and is just called right two auxiliary ventilating hole (52b), described left block and right block assemble Face to face, and with being connected above of the scavenging air belt of cylinder body, the two auxiliary ventilating hole (51b) in a left side that two scavenging air belts of described cylinder body are provided with described left block (51) is respectively connected with the two auxiliary ventilating hole (52b) in the right side that described right block (52) is provided with, it is the two auxiliary ventilating hole of the left and right block narrowed, the two auxiliary shirt rim (37) be equipped with when described two auxiliary ventilating hole and the skirt section of piston run to described in piston lower close to time, just be beneficial to and narrow local volumetric, strengthen local air flow pressure and flow velocity and additional turbulence to return and alter and fall row, the wedge turbulent flow time that upper each each ground, left and right symmetrically, scavenging road junction (45) of the left and right each of the described two auxiliary ventilating hole narrowing left and right block and the symmetry of described cylinder body (44) is provided with alters both adapteds of sheet (46), both adapteds of the two auxiliary shirt rim (37) that the skirt section of the described two auxiliary ventilating hole and described piston that narrow left and right block is equipped with, the described two auxiliary ventilating hole narrowing left and right block, the wedge turbulent flow that upper each left and right symmetrically, the scavenging road junction (45) had with the left and right of the symmetry of described cylinder body (44) is provided with having returns alters sheet (46), and with two auxiliary shirt rim (37) three's adapted that the skirt section of described piston is equipped with, have and fall row's effect, the rear wall (51f) of the two auxiliary ventilating hole (51b) in the left side that the described left block (51) narrowing the two auxiliary ventilating hole of left and right block is provided with is thicker, and thinnest part is no less than 1.4mm, and has the oblique angle being greater than 9 degree, the described left block (51) narrowing the two auxiliary ventilating hole of left and right block is provided with multiple reinforcement arm pawl (51e), and the rectangular cross-section of each reinforcement arm pawl is thicker, thinnest part is greater than 1.4mm, described in narrow the two auxiliary ventilating hole of left and right block the back side of the two auxiliary ventilating hole (51b) in the left side that is provided with of left block (51) be provided with long stiffening rib (51c), the back side of the pit of the two auxiliary ventilating hole (51b) in the left side that the described left block (51) narrowing the two auxiliary ventilating hole of left and right block is provided with is provided with short stiffening rib (51d), the two auxiliary ventilating hole (52b) in the right side that the described right block (52) narrowing the two auxiliary ventilating hole of left and right block is provided with is pit, the length, width and height of its pit are not identical with the two auxiliary ventilating hole (51b) in a left side for described left block (51), to gain in strength, resist and narrow two larger local compression caused by auxiliary ventilating hole, the two auxiliary ventilating hole (52b) in the right side that the described right block (52) narrowing the two auxiliary ventilating hole of left and right block is provided with is pit, the two auxiliary ventilating hole (51b) in the left side that length, width and height and the described left block (51) of its pit are provided with is not identical, the length, width and height on the motor of 1E33 type and single-cylinder double stroke cylinder diameter 33 millimeters be not etc. and have the cuboidal pit of the band tapering of CONCENTRIC REDUCER, on the cylinder chamber of the dress piston of the cylinder body (44) of two-stroke gasoline engine, be centrally provided with the scavenging road junction (45) that left and right has symmetrically, on the scavenging road junction (45) that the left and right of the symmetry of described cylinder body (44) has, each each ground, left and right is symmetrically provided with scavenging air belt partition wall (53), thus described scavenging road junction (45) is divided into two, and then form the improvement that substantial two-stroke gasoline engine list scavenging air belt changes the many scavenging air belts of two-stroke gasoline engine into, in order to retardance, many and waste gas returns and alters less thus reduce discharge, described scavenging air belt partition wall (53) is by the foot of a wall portion (53a), wall end (53d), front metope (53c), rear metope (53b) formed, the front metope (53c) of described scavenging air belt partition wall (53) and rear metope (53b) extend along the piston movement direction of the cylinder chamber of the dress piston of described cylinder body (44), the foot of a wall portion (53a) of described scavenging air belt partition wall (53) and being connected in the inner wall section of cylinder body (44) of described scavenging road junction (45), wall end (53d) and the piston sliding contact of described scavenging air belt partition wall (53), the positive middle part thus described scavenging road junction (45) is divided into that the foot of a wall portion (53a) of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) is provided with is located at scavenging air belt is divided into two, or the foot of a wall portion (53a) that upper each each two ground, left and right symmetrically, the scavenging road junction (45) to have in the left and right of the symmetry of described cylinder body (44) are provided with scavenging air belt partition wall (53) is divided into one dividing into three described scavenging road junction (45), the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) is provided with from described scavenging road junction (45) the foot of a wall portion (53a) the extending radially out along piston that the inner wall section of cylinder body (44) is connected, the upper each scavenging air belt partition wall (53) that each ground, left and right is provided with symmetrically in the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) stretches out along the radial direction of piston from described scavenging road junction (45) angularly in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected, the upper each scavenging air belt partition wall (53) that each ground, left and right is provided with symmetrically in the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) has the angle that be not more than 40 degree to stretch out in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along the radial direction with piston from described scavenging road junction (45), the upper each scavenging air belt partition wall (53) that each ground, left and right is provided with symmetrically in the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) stretches out by 22.5 degree along the radial direction with piston from described scavenging road junction (45) angularly in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected, the front metope (53c) of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) is provided with stretches out along the radial direction with piston in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along from described scavenging road junction (45) mutually angularly with rear metope (53b), the angle of described front metope (53c) and rear metope (53b) mutual 6 degree, the front metope (53c) of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) is provided with and rear metope (53b) along from described scavenging road junction (45) in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along with the extending radially out of piston, described front metope (53c) and rear metope (53b) are the arc-shaped curved surfaces of involute, the front metope (53c) of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) is provided with and rear metope (53b) along from described scavenging road junction (45) in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along with the extending radially out of piston, described front metope (53c) and rear metope (53b) are that the equiangular spiral that pressure angle is equal everywhere is also called logarithmic spiral face, described tool increases the right case of compression ratio and the two stroke engine of function Fourier sheet wall is further characterized in that the pit of the ventilating hole of the right case of described tool increasing compression ratio varies in size, and the pit of the ventilating hole (51b) of described left box body is containing left prism (51g), left straight sided (51y) and left broadside face (51h), the pit of the ventilating hole (52b) of described right case is containing right prism (52g), right straight sided (52y) and right broadside face (52h), described left prism (51g) is 59-60 degree to the left with the angle of Ji Gang center, the mating face split surface of left box body, described left straight sided (51y) is 89-90 degree with the angle of Ji Gang center, the mating face split surface of left box body, described right prism (51g) is 60-61 degree to the right with the angle of Ji Gang center, the mating face split surface of right case, described right straight sided (51y) is 90-91 degree with the angle of Ji Gang center, the mating face split surface of right case, described left broadside face (51h) is arc shaped surface, and described right broadside face (52h) is also arc shaped surface, or the arc shaped surface of one of logarithmic spiral section of composition.

Update perfect described tool and increase the right case of compression ratio and the two stroke engine of function Fourier sheet wall, its length, width and height at the volume of the pit of the two auxiliary ventilating hole (52b) in the described right side of the air-cooled 1E33F type of the cylinder diameter φ 33 of the single-cylinder double stroke of two stroke engine are for being not more than 18.7x3.3x6.7mm.

Update perfect described tool and increase the right case of compression ratio and the two stroke engine of function Fourier sheet wall, its length, width and height at the volume of the pit of the two auxiliary ventilating hole (51b) in the described right side of the air-cooled 1E33F type of the cylinder diameter φ 33 of the single-cylinder double stroke of two stroke engine are for being not more than 13x2.2x5.5mm.

Update perfect described tool and increase the right case of compression ratio and the two stroke engine of function Fourier sheet wall, it is characterized in that the top of the scavenging air belt partition wall (53) that the upper each each ground, left and right symmetrically, scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) is provided with is provided with Fourier function breach (53j), and have gibbs overshoot to approach rectangle described Fourier function breach (53j) and the tie point of described the foot of a wall portion (53a), the two stroke engine of described tool periodic function gibbs overshoot convergence ripple Fourier sheet wall is further characterized in that and the scavenging road junction (45) that has in the left and right of the symmetry of described cylinder body (44) is provided with tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54), the stifled high-wall that described tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) is a side from scavenging road junction (45) and stretches out along the circumferencial direction in the piston cylinder of cylinder body (44), it highly exceedes the half (degree of depth is the axial direction along piston) of scavenging road junction (45) degree of depth.

Update perfect described tool and increase the right case of compression ratio and the two stroke engine of function Fourier sheet wall, it is characterized in that: the stifled high-wall that the described high-wall of the tool periodic function gibbs overshoot that is provided with on the scavenging road junction (45) that the left and right of the symmetry of described cylinder body (44) has convergence ripple Fourier sheet wall (54) is a side from scavenging road junction (45) and stretches out along the circumferencial direction in the piston cylinder of cylinder body (44), it is highly 90% (highly and the degree of depth are all axial directions along piston) of scavenging road junction (45) degree of depth.

Update perfect described tool and increase the right case of compression ratio and the two stroke engine of function Fourier sheet wall, it is characterized in that: the described high-wall of the tool periodic function gibbs overshoot that is provided with on the scavenging road junction (45) that the left and right of the symmetry of described cylinder body (44) has convergence ripple Fourier sheet wall (54) is a side from scavenging road junction (45) and stretches out a stifled high-wall of 6-12mm along the circumferencial direction in the piston cylinder of cylinder body (44), it is highly the 80%-90% (height and the degree of depth are all the axial directions along piston) of scavenging road junction (45) degree of depth.

Update perfect described tool and increase the right case of compression ratio and the two stroke engine of function Fourier sheet wall, it is characterized in that: the tool periodic function gibbs overshoot be provided with on the scavenging road junction (45) that the left and right of the symmetry of described cylinder body (44) has restrains a described side from scavenging road junction (45) of ripple Fourier sheet wall (54) and is provided with transition flex point (54j) along the top blocking up high-wall that the circumferencial direction in the piston cylinder of cylinder body (44) stretches out.

Update perfect described tool and increase the right case of compression ratio and the two stroke engine of function Fourier sheet wall, it is characterized in that: the described side from scavenging road junction (45) of tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) be provided with on the scavenging road junction (45) that the left and right of the symmetry of described cylinder body (44) has and the top of a stifled high-wall of stretching out along the circumferencial direction in the piston cylinder of cylinder body (44) be provided with transition flex point (54j) have at least one close to 90 degree turn round shape its with being approximately gibbs overshoot convergence ripple i.e. imitative fourier series gibbs overshoot phenomenon draw approach rectangle transition ripple gradually.

Update perfect described tool and increase the right case of compression ratio and the two stroke engine of function Fourier sheet wall, it is characterized in that: the tool periodic function gibbs overshoot be provided with on the scavenging road junction (45) that the left and right of the symmetry of described cylinder body (44) has restrains a described side from scavenging road junction (45) of ripple Fourier sheet wall (54) and is provided with multiple fluctuating convex-concave (54k) along the bottom blocking up high-wall that the circumferencial direction in the piston cylinder of cylinder body (44) stretches out.

Update perfect described tool and increase the right case of compression ratio and the two stroke engine of function Fourier sheet wall, it is characterized in that: the described side from scavenging road junction (45) of tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) be provided with on the scavenging road junction (45) that the left and right of the symmetry of described cylinder body (44) has and the bottom of a stifled high-wall of stretching out along the circumferencial direction in the piston cylinder of cylinder body (44) be provided with multiple fluctuating convex-concave (54k) its be approximately the frequency spectrum of decaying gradually that imitative fourier series draws multiple from diminish greatly from thin change close spike.

Update perfect described tool and increase the right case of compression ratio and the two stroke engine of function Fourier sheet wall, it is characterized in that: the Fourier function breach (53j) that the top of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, scavenging road junction (45) that the left and right of the described symmetry at cylinder body (44) has is provided with is provided with is containing being approximately the sinusoidal odd function of Fourier and the approximate ventilating hole being used as the wave only having single circular frequency that imitative fourier series draws.

Update perfect described tool and increase the right case of compression ratio and the two stroke engine of function Fourier sheet wall, it is characterized in that: the Fourier function breach (53j) that the top of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, scavenging road junction (45) that the left and right of the described symmetry at cylinder body (44) has is provided with is provided with is the ventilating hole of S shape.

Further Improvement and perfection is the present invention:

The two-cycle gasoline engine of noise control filter screen valve control pre-burning scavenging is added in scavenge trunk, containing left block, right block, piston, combustion chamber, spark plug, cylinder body, cylinder cap, cylinder barrel, connecting rod, crankcase, lubricating oil pump, lubricating system, fuel system, ignition system, cooling system, described cylinder body (44) is centrally provided with the scavenging road junction (45) that left and right has symmetrically on the cylinder chamber of the dress piston of two stroke engine, namely on the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44), respectively each ground, left and right is provided with wedge turbulent flow time and alters sheet (46) symmetrically, the skirt section of described piston is equipped with two auxiliary shirt rims (37), described two auxiliary shirt rim (37) is on the basis of former two shirt rims of the bilateral that there is not connecting rod pin-and-hole that retains original piston, and the bilateral that has connecting rod pin-and-hole in the skirt section of piston (31) is following, an auxiliary shirt rim is added on every one side, so be referred to as two auxiliary shirt rims (37), described two auxiliary shirt rim, it is containing base (38), lower fillet (39), side (40), upper fillet (41), the concave arc limit (42) on base, the through hole (43) of piston and two auxiliary shirt rims, the logarithm line of its piston skirt logarithmic differentiation equation of described piston also claims that isogonal one section is located at shirt rim, the limit of the part of its shirt rim is a section that pressure angle approaches the equal logatithmic spiral by logarithmic differentiation equation, utilize the feature that the logatithmic spiral tool pressure angle of higher mathematics is equal, wedge turbulent flow is returned and alter one section that blade has logatithmic spiral, then gush mixed air-flow thereon just easily steadily, block waste gas and return in order to utilize equal pressure angle to produce turbulent flow at scavenging road junction place and alter to reduce discharge, described two auxiliary shirt rim or with aluminium alloy, or with composite to reduce cylinder prepareding gap, use CNC machining center, tungsten copper electrode first be made, with the auxiliary molding of the lathe that has three-dimensional rotation head, then produce in batches with die casting machine, machined and plating again, described left block and right block are respectively provided with and change the little two auxiliary blow vent narrowing, described two auxiliary blow vent is located at left block and is just called left two auxiliary blow vent (51b), described two auxiliary blow vent is located at right block and is just called right two auxiliary blow vent (52b), described left block and right block are to assemble Face to face, and with being connected above of the scavenging air belt of cylinder body, the right side pair auxiliary blow vents (52b) that the two auxiliary blow vents (51b) in a left side that two scavenging air belts of described cylinder body are provided with described left block (51) respectively and described right block (52) are provided with are connected, it is the two auxiliary blow vent of the left and right block that narrows, when the two auxiliary shirt rim (37) being equipped with when described two auxiliary blow vent and the skirt section of described piston that runs to piston lower approaches, just be beneficial to and narrow local volumetric, strengthen local air flow pressure and flow velocity and additional turbulence is returned and altered and fall row, the wedge turbulent flow that upper each each ground, left and right symmetrically, scavenging road junction (45) of the symmetrical left and right each of the described two auxiliary blow vent that narrows left and right block and described cylinder body (44) is provided with returns alters both adapteds of sheet (46), both adapteds of two auxiliary shirt rim (37) that the skirt section of the described two auxiliary blow vent that narrows left and right block and described piston is equipped with, the described two auxiliary blow vent that narrows left and right block,The wedge turbulent flow that the upper each left and right symmetrically, scavenging road junction (45) having with the symmetrical left and right of described cylinder body (44) is provided with having returns alters sheet (46), and with two auxiliary shirt rim (37) three's adapted that the skirt section of described piston is equipped with, have the row's of falling effect, the rear wall (51f) of the two auxiliary blow vents (51b) in a left side that the left block (51) of the described two auxiliary blow vents that narrow left and right block is provided with is thicker, and thinnest part is no less than 1.4mm, and has the oblique angle that is greater than 9 degree, the left block (51) of the described two auxiliary blow vents that narrow left and right block is provided with multiple reinforcement arm pawls (51e), and the square-section of each reinforcement arm pawl is thicker, thinnest part is greater than 1.4mm, described in narrow left and right block the back side of the two auxiliary blow vents (51b) in a left side that are provided with of the left block (51) of two auxiliary blow vents be provided with long reinforcement (51c), the back side of the pit of the two auxiliary blow vents (51b) in a left side that the left block (51) of the described two auxiliary blow vents that narrow left and right block is provided with is provided with short reinforcement (51d), the two auxiliary blow vents (52b) in the right side that the right block (52) of the described two auxiliary blow vents that narrow left and right block is provided with are pits, the length, width and height of its pit are not identical with the two auxiliary blow vents (51b) in a left side for described left block (51), to gain in strength, resist and narrow two larger local pressures caused by auxiliary blow vent, the two auxiliary blow vents (52b) in the right side that the right block (52) of the described two auxiliary blow vents that narrow left and right block is provided with are pits, the two auxiliary blow vents (51b) in a left side that length, width and height and the described left block (51) of its pit is provided with are not identical, and the length, width and height that are less than at small-sized single cylinder two-stroke cylinder diameter on the engine of 49 millimeters are the cuboidal pit with tapering that is that wait and that have concentric reducer, on the cylinder chamber of the dress piston of the cylinder body (44) of two-cycle gasoline engine, be centrally provided with the scavenging road junction (45) that left and right has symmetrically, on the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44), respectively each ground, left and right is provided with scavenging air belt partition wall (53) symmetrically, thus described scavenging road junction (45) is divided into two, and then form substantial two-cycle gasoline engine list scavenging air belt and change into the improvement of the many scavenging air belts of two-cycle gasoline engine, return and alter less in order to the many and waste gas of retardance thus reduce discharge, described scavenging air belt partition wall (53) is by the foot of a wall portion (53a), wall end (53d), front metope (53c), rear metope (53b) forms, front metope (53c) and the rear metope (53b) of described scavenging air belt partition wall (53) extend along the piston movement direction of the cylinder chamber of the dress piston of described cylinder body (44), the foot of a wall portion (53a) of described scavenging air belt partition wall (53) is connected with the inner wall section at cylinder body (44) at described scavenging road junction (45), wall end (53d) and the piston of described scavenging air belt partition wall (53) slidingly contact, the foot of a wall portion (53a) of the scavenging air belt partition wall (53) that the upper each each ground, left and right symmetrically, scavenging road junction (45) having in the symmetrical left and right of described cylinder body (44) is provided with is located at the positive middle part of scavenging air belt thus described scavenging road junction (45) is divided into and is divided into two,Or the foot of a wall portion (53a) that on the scavenging road junction (45) having in the symmetrical left and right of described cylinder body (44), respectively each two ground, left and right are provided with scavenging air belt partition wall (53) is symmetrically divided into one dividing into three described scavenging road junction (45); Scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44) is provided with the foot of a wall portion (53a) the extending radially out along piston from being connected in the inner wall section of cylinder body (44) with described scavenging road junction (45); Scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44) is provided with the foot of a wall portion (53a) radially the stretching out angularly along piston from being connected in the inner wall section of cylinder body (44) with described scavenging road junction (45); Scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44) is provided with is from stretching out along the angle that is not more than 40 degree that radially has with piston in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected with described scavenging road junction (45); Scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44) is provided with from described scavenging road junction (45) in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along with radially the stretching out by 22.5 degree angularly of piston; The front metope (53c) of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44) is provided with and rear metope (53b) along from described scavenging road junction (45) in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along with radially the stretching out angularly mutually of piston, the angle that described front metope (53c) and rear metope (53b) mutual are 6 degree; The front metope (53c) of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44) is provided with and rear metope (53b) along from described scavenging road junction (45) in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along with the extending radially out of piston, described front metope (53c) and rear metope (53b) are the arc-shaped curved surfaces of involute; The front metope (53c) of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44) is provided with and rear metope (53b) along from described scavenging road junction (45) in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along with the extending radially out of piston, described front metope (53c) and rear metope (53b) are that the equiangular spiral that pressure angle is equal everywhere is also called logatithmic spiral face;The top of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, scavenging road junction (45) that the two-cycle gasoline engine of the described gas stratiform scavenging that makes precombustion in scavenge trunk has in the symmetrical left and right of described cylinder body (44) is provided with is provided with Fourier function breach (53j), and gibbs overshoot is had to approach rectangle at described Fourier function breach (53j) with the tie point in described the foot of a wall portion (53a), described tool increases on its scavenging road junction (45) having in the symmetrical left and right of described cylinder body (44) of the right case of compression ratio and the small-sized single cylinder two stroke engine of function Fourier sheet wall and is provided with tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54), described tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) is the side from scavenging road junction (45) and a stifled high-wall that circumferencial direction in the piston cylinder along cylinder body (44) stretches out, it highly exceedes the half (degree of depth is the axis direction along piston) of scavenging road junction (45) degree of depth, its pit of blow vent of right case that increases compression ratio at described tool of the described two-cycle gasoline engine that adds the scavenging of noise control filter screen valve control pre-burning in scavenge trunk varies in size, and the pit of the blow vent (51b) of described left box body is containing left prism (51g), left straight sided (51y) and left broad side surface (51h), the pit of the blow vent (52b) of described right case is containing right prism (52g), right straight sided (52y) and right broad side surface (52h), described left prism (51g) is 59-60 degree to the left with the angle of Ji Gang center, the composition surface split surface of left box body, described left straight sided (51y) is 89-90 degree with the angle of Ji Gang center, the composition surface split surface of left box body, described right prism (51g) is 60-61 degree to the right with the angle of Ji Gang center, the composition surface split surface of right case, described right straight sided (51y) is 90-91 degree with the angle of Ji Gang center, the composition surface split surface of right case, described left broad side surface (51h) is arcwall face, and described right broad side surface (52h) is also arcwall face, or the arcwall face of one section of composition of logatithmic spiral, the described high-wall of the tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) that the scavenging road junction (45) that the symmetrical left and right of described cylinder body (44) has is provided with is the side from scavenging road junction (45) and a stifled high-wall that circumferencial direction in the piston cylinder along cylinder body (44) stretches out, and it is highly the 80%-90% of scavenging road junction (45) degree of depth (highly and the degree of depth are all the axis directions along piston), the described side from scavenging road junction (45) of the tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) that the scavenging road junction (45) that the symmetrical left and right of described cylinder body (44) has is provided with and the top of the stifled high-wall that circumferencial direction in the piston cylinder along cylinder body (44) stretches out is provided with transition flex point (54j), what its turn round shape and its that has at least one to approach 90 degree was approximately that gibbs overshoot convergence ripple i.e. imitative fourier series ground gibbs overshoot phenomenon draws approaches rectangle transition ripple gradually,The described side from scavenging road junction (45) of the tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) that the scavenging road junction (45) that the symmetrical left and right of described cylinder body (44) has is provided with and the bottom of the stifled high-wall that circumferencial direction in the piston cylinder along cylinder body (44) stretches out is provided with multiple fluctuating convex-concaves (54k), the described side from scavenging road junction (45) of the tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) that the scavenging road junction (45) that the symmetrical left and right of described cylinder body (44) has is provided with and the bottom of the stifled high-wall that circumferencial direction in the piston cylinder along cylinder body (44) stretches out is provided with multiple fluctuating convex-concaves (54k), the described side from scavenging road junction (45) of the tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) that the scavenging road junction (45) that the symmetrical left and right of described cylinder body (44) has is provided with and the bottom of the stifled high-wall that circumferencial direction in the piston cylinder along cylinder body (44) stretches out be provided with multiple fluctuating convex-concaves (54k) its be approximately the decay gradually that imitative fourier series is drawn frequency spectrum multiple from diminish greatly from thin change close spike, or the Fourier function breach (53j) that is provided with of the top of the scavenging air belt partition wall (53) that is provided with of upper each each ground, left and right symmetrically, the described scavenging road junction (45) having in the symmetrical left and right of cylinder body (44) is the blow vent containing being approximately the sinusoidal odd function of Fourier that imitative fourier series draws and approximate wave as only having single circular frequency, the Fourier function breach (53j) that the top of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the described scavenging road junction (45) having in the symmetrical left and right of cylinder body (44) is provided with is provided with is the blow vent of S shape, the described piston (31) of the described two-cycle gasoline engine that adds the scavenging of noise control filter screen valve control pre-burning in scavenge trunk is provided with each one gas storage pit (31a) around, it slightly resembles a pear in shape described gas storage pit, there is concentric reducer, less near piston pin axle bed place, it is larger away from piston pin axle bed place, the crosscut hatching (31b) of described gas storage pit is curve, the thickness of the section of the crosscut hatching (31b) of described gas storage pit is greater than 2mm, the curve of the crosscut hatching (31b) of described gas storage pit is the equipotentiality streamline of family of parabolas, one section of its streamline is the quadratic function of the family of parabolas of the analytical function of the harmonic function that meets Laplace's equation of the flow function of imitating Method of Mathematical Physics, the described two-cycle gasoline engine that adds the scavenging of noise control filter screen valve control pre-burning in scavenge trunk, the cylinder body (44) of the two-cycle gasoline engine described in it is containing blow vent (44a), the first scavenging port (44d) that enters air scoop (44c), the each symmetry in left and right that enters gas port (44b), the each symmetry in left and right, second scavenging port (44f) of the each symmetry in left and right, second scavenging port (44f) of the each symmetry of the first scavenging port (44d) and described left and right of the each symmetry in described left and right is located at scavenging road junctionThe interval of described the first scavenging port (44d) and described the second scavenging port (44f) and top are provided with two scavenging air belts along piston movement direction be the envelope high-wall (44e) of sealing by piston cylinder, the inner side of described envelope high-wall (44e) is circular arc by piston cylinder, the outside of described envelope high-wall (44e) does not namely depend on piston cylinder to lean on the side of scavenging air belt to be shaped form, and with technique butt strip (55) coexistence in the outer portion at the scavenging road junction of cylinder body, described technique butt strip (55) is containing interval stupefied (55g), interval breach (55e), the first scavenging side wall (55d), the second scavenging side wall (55d), three mounting hole site and special-shaped packing, and be formed with the scavenging road junction of cavity, thus become the two-cycle gasoline engine of the gas stratiform scavenging that makes precombustion in scavenge trunk, the stupefied upper top at the interval stupefied (55g) of described technique butt strip (55) be curve so that and the outside of described envelope high-wall (44e) namely depend on piston cylinder to lean on the shaped form of side of scavenging air belt coexist and scavenging air belt is divided into two, the stupefied upper top at the interval stupefied (55g) of described technique butt strip (55) be family of parabolas quadratic function curve so that and the outside of described envelope high-wall (44e) by the quadratic function curve shape coexistence of the equipotentiality streamline of the family of parabolas of the side of scavenging air belt, the interval breach (55e) of described technique butt strip (55) and the outside of described envelope high-wall (44e) coexist by the shaped form between the first scavenging port (44d) and the second scavenging port (44f) of the side of scavenging air belt and scavenging air belt are divided into two, the first scavenging side wall (55d) of described technique butt strip (55) forms the first scavenging road junction with the bottom coexistence of first scavenging port (44d) of described cylinder body, the second scavenging side wall (55d) of described technique butt strip (55) forms the second scavenging road junction with the bottom coexistence of second scavenging port (44f) of described cylinder body, the upper top of the first scavenging side wall (55d) of described technique butt strip (55) be family of parabolas quadratic function curve so that and the outside of described envelope high-wall (44e) form the first scavenging road junction by the quadratic function curve shape coexistence of the equipotentiality streamline of the family of parabolas of the side of scavenging air belt, the upper top of the second scavenging side wall (55d) of described technique butt strip (55) be family of parabolas quadratic function curve so that and the outside of described envelope high-wall (44e) form the second scavenging road junction by the quadratic function curve shape coexistence of the equipotentiality streamline of the family of parabolas of the side of scavenging air belt, described cylinder body (44) is provided with multiple reinforcement heat radiations (44x, 44v) in flakes between its multiple fin, described cylinder body (44) is provided with perforation louvre (44j) in the cross-sectional direction of exhaust outlet, and the cross-sectional direction at the air inlet of described cylinder body (44) is also provided with straight-through louvre (44k), the two-cycle gasoline engine that adds the scavenging of noise control filter screen valve control pre-burning in scavenge trunk is characterized in that, the innovation is near piston top dead center, before ignition of mixed gas in cylinder above compressed piston, because moving the preparation air entry making in latch-release cylinder in piston train of dress portion opens, in the crankcase below piston, suck the gaseous mixture of fuel and air,The pressure of burning gases above the piston that produces due to igniting again, piston moves and closes simultaneously air entry from top dead-centre to bottom dead centre direction, gaseous mixture in compression crankcase, on the piston of bottom dead center-nearby, when the burning gases that make in cylinder from opening and closing exhaust outlet are discharged to outdoor gas, the scavenge air belt being connected with cylinder by crankcase imports to the two cycle engine in cylinder by preparation scavenging port in latch-release cylinder on piston from crankcase by gaseous mixture, the design has the valve gear with crankshaft-synchronous, and this valve is from crankcase to cylinder scavenging mouth, and the crankcase side of scavenge air belt is configured to normally closed, in the valve-closing of the crankcase side of scavenge air belt, gaseous mixture in scavenge air belt is by the burning that makes it to ignite of the flame of combustion gas, HC reduces later again from crankcase to scavenging port, the crankcase side of scavenge air belt makes it opening, when the burning gaseous mixture of scavenge air belt is sent, gaseous mixture in crankcase was closed exhaust outlet before exhaust outlet is discharged, the two cycle engine that Here it is makes the discharge of HC significantly reduce, solve in former structure, with the valve of above-mentioned bent axle same period because not being designed, the words also do not opened of scavenging port after the flame extinction of burning gases, the flame of burning gases can make the gaseous mixture ignition in scavenge air belt and crankcase, gaseous mixture cannot be supplied with in cylinder, the opening of exhaust outlet will make the opening of scavenging port cross early stage unlatching, exhaust outlet in cylinder and scavenging port are at the same time during opening, unblended mixture in crankcase and in scavenge air belt is proceeded from exhaust outlet in cylinder, so a part for gaseous mixture is discharged from exhaust outlet under unburned state, become the problem that the gaseous mixture (i.e. HC) in Exhaust Gas increases, the present invention is outside described air entry exhaust outlet scavenging port, after crankcase scavenging, crankcase side at scavenge air belt has been appended opening and closing valve, gaseous mixture in scavenge air belt is ignited and is burnt in the flame of combustion gas, and in scavenge air belt and crankcase, be that the valve of the synchronizing cycle according to bent axle can be truncated, so the gaseous mixture in crankcase can not burn, combustion gas in scavenge air belt is in the valve openings with the crankshaft-synchronous cycle simultaneously, gaseous mixture in crankcase can be extruded out in cylinder, at exhaust outlet and scavenging port initial stage during opening simultaneously, burning gases in scavenge air belt are fed in cylinder, HC can not be adulterated in the exhaust gas that is discharged from exhaust outlet to outside, when exhaust outlet is about to close, unblended mixture in spent gaseous mixture in scavenge air belt in lasting crankcase is fed in cylinder, so the HC amount of adulterating in exhaust gas can control minimizing, the described valve gear that has with crankshaft-synchronous, it is the C type circle (56a) that adds crank valve (56) on bent axle (57), the C type circle of described crank valve (56) has the dual-side of a bit of opening to be set to the wedge circle (56b) at oblique angle, when the side that has oblique angle of the dual-side of its a bit of opening is with crankshaft rotating, during the oral area of the connection crankcase in the scavenge trunk of latch-release cylinder, just form the effect of shearing and reducing sudden change and impact, the described two-cycle gasoline engine that adds the scavenging of noise control filter screen valve control pre-burning in scavenge trunk, is further characterized in that, the described valve gear that has with crankshaft-synchronous,It is the pressure coil (56f) that the dual-side of a bit of opening of the C type circle (56a) that adds crank valve (56) on bent axle (57) is provided with oblique angle, when the logatithmic spiral side of the dual-side of a bit of opening of described pressure coil is with crankshaft rotating, during the oral area of the connection crankcase in the scavenge trunk of latch-release cylinder with regard to mineralization pressure angle everywhere the logatithmic spiral of properties equivalent affect the effect of air-flow and buffering; The wedge (11b) of the noise control filter screen in scavenge trunk is located at described technique butt strip (55) side; Catalyst volume (59) its platiniferous rhodium indium of reduction of discharging is provided with in the scavenge trunk on described technique butt strip (55) side, catalyst effect and noise control is had to filter regulating and controlling effect to flowing through gas, there are regular hour difference and isolation and noise elimination regulating action, slow down the discharge of the exhaust outlet of HC to scavenge trunk, thus be formed in the two-cycle gasoline engine that adds the scavenging of noise control filter screen valve control pre-burning in scavenge trunk.

The described two-cycle gasoline engine adding the scavenging of noise control filter screen valve control pre-burning in scavenge trunk of further Improvement and perfection, it is characterized in that, described has the valve gear with crankshaft-synchronous, the oral area that bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the connection crankcase of the scavenge trunk of latch-release cylinder is formed, and the gap (56 δ) between the oral area of the connection crankcase of the scavenge trunk of the cylinder of the external diameter distance motor 1E39F of the outer circle of described C type circle is at 0.02-0.09 millimeter; Be further characterized in that, described has the valve gear with crankshaft-synchronous, bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder is formed, the dual-side of a bit of opening of described C type circle to the central angle in the bent axle center of circle at 82-95 degree.

The described two-cycle gasoline engine adding the scavenging of noise control filter screen valve control pre-burning in scavenge trunk of further Improvement and perfection, it is characterized in that, described has the valve gear with crankshaft-synchronous, bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder is formed, described bent axle (57) is provided with C type edge (57a), and it matches with the described a bit of opening adding the C type circle (56a) of crank valve (56).

The described two-cycle gasoline engine adding the scavenging of noise control filter screen valve control pre-burning in scavenge trunk of further Improvement and perfection, it is characterized in that, described has the valve gear with crankshaft-synchronous, bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder is formed, described bent axle (57) is provided with C type edge (57a), and it is corresponding with the described a bit of opening adding the C type circle (56a) of crank valve (56) and by a positioning hole, or a locating stud, or setting sleeve realizes coordinating, and fix with three screws.

The described two-cycle gasoline engine adding the scavenging of noise control filter screen valve control pre-burning in scavenge trunk of further Improvement and perfection, it is characterized in that, described has the valve gear with crankshaft-synchronous, it is the C type circle (56a) adding crank valve (56) on bent axle (57), the C type circle of described crank valve (56) has the dual-side of a bit of opening to be set to the wedge circle (56b) at oblique angle, when a bit of opening of described C type circle dual-side have the side at oblique angle with crankshaft rotating, just form shear flow when the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder and reduce the effect suddenling change and impact.The angle of the medial axis of its every limit bent axle of oblique angle that the dual-side of a bit of opening of wedge circle (56b) is provided with is at 5-27.5 degree.

The described two-cycle gasoline engine adding the scavenging of noise control filter screen valve control pre-burning in scavenge trunk of further Improvement and perfection, it is characterized in that, described has the valve gear with crankshaft-synchronous, it is the C type circle (56a) adding crank valve (56) on bent axle (57), the C type circle of described crank valve (56) has the dual-side of a bit of opening to be set to the pressure coil (56f) at oblique angle, when the logarithmic spiral side of the dual-side of a bit of opening of described pressure coil is with crankshaft rotating, affect the effect of air-flow and buffering with regard to the logarithmic spiral of mineralization pressure angle properties equivalent everywhere when the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder.

The described two-cycle gasoline engine adding the scavenging of noise control filter screen valve control pre-burning in scavenge trunk of further Improvement and perfection, it is characterized in that, filter screen (58) in described scavenge trunk is located at described technique butt strip (55) side, filter screen in described scavenge trunk is formed through knitting device by many wire, has filtration regulating and controlling effect to breathing between gas and crankcase in cylinder; Noise control filter screen in scavenge trunk is provided with multiple wedge (11b), and described wedge is multiple hollow six prismatics, and there is aperture on top, the advanced wedge compression of air-flow, then expands from the effusion of wedge aperture, has noise control to filter regulation and control and noise elimination effect.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is the generalized section of the present invention for spark plug.

Fig. 2 is the exploded perspective view of the present invention for spark plug.

Fig. 3 is the schematic diagram of the interior induction reactance of threaded one end (4) and the threaded the other end (4b) and inductance coil (15).

Fig. 4 is the schematic diagram of the insulator (3) of the multiple tracks umbrella rib of band saw-tooth shaped cross section.

Fig. 5 is with calibration (1a), zigzag fashion umbrella rib (1c), the schematic perspective view of the outer calibration high-voltage coupler (1) of fixing hole (1b) and internal thread.

Fig. 6 is with zigzag fashion umbrella rib (1c), and the generalized section of the outer calibration high-voltage coupler (1) of internal thread.

Fig. 7 is the generalized section of the electrode (121) having many sides and many folding gaps.

Fig. 8 is the worm's eye view of the electrode (121) having many sides and many folding gaps.

Fig. 9 is the schematic perspective view of the electrode (121) having many sides and many folding gaps.

Figure 10 has the right side of the electrode (121) in many sides and many folding gaps to look schematic diagram.

Figure 11 is the schematic top plan view of the electrode (121) having many sides and many folding gaps.

Figure 12 is the schematic top plan view of the electrode (23) having many sides and Multiple level.

Figure 13 is the sectional drawing of the shell (5) having radiating fin.

Figure 14 is the schematic perspective view of the spark plug of the electrode (121) having many sides and many folding gaps.

Figure 15 is the schematic perspective view of the electrode (21) having many sides and Multiple level.

Figure 16 is the elevational schematic view of the spark plug of the electrode (21) having many sides and Multiple level.

Figure 17 is the plan view of the spark plug of the electrode (21) having many sides and Multiple level.

Figure 18 is the elevational schematic view of the electrode (21) having many sides and Multiple level.

Figure 19 is the schematic perspective view having the round basin of side and middle part to dig the spark plug of the electrode (22) of acute angle star.

Figure 20 is the elevational schematic view having the round basin of side and middle part to dig the spark plug of the electrode (22) of acute angle star.

Figure 21 is the schematic perspective view having the round basin of side and middle part to dig the inside of the electrode (22) of acute angle star.

Figure 22 is the schematic perspective view having the round basin of side and middle part to dig the outside of the electrode (22) of acute angle star.

Figure 23 is the worm's eye view having the round basin of side and middle part to dig the electrode (22) of acute angle star.

Figure 24 is the plan view having the round basin of side and middle part to dig the electrode (22) of acute angle star.

Figure 25 is the schematic perspective view of the spark plug of the electrode (23) having many sides and Multiple level.

Figure 26 is the elevational schematic view of the spark plug of the electrode (23) having many sides and Multiple level.

Figure 27 is the plan view of the electrode (23) having many sides and Multiple level.

Figure 28 has extension (16a), arc portion (16b), the sectional view of the cranked electrode (16) of turn of bilge (16c).

Figure 29 is the elevational schematic view of the spark plug of the electrode (121) having many sides and many folding gaps.

Figure 30 is the exploded perspective view of the spark plug of the electrode (121) having many sides and many folding gaps.

Figure 31 is the sectional drawing by electrode (12).

Figure 32 is the worm's eye view by electrode (12).

Figure 33 is the elevational schematic view by electrode (12).

Figure 34 is the side view by electrode (12).

Figure 35 is the plan view by electrode (12).

Figure 36 is the stereogram by electrode (24).

Figure 37 is the sectional drawing by electrode (24).

Figure 38 is the schematic perspective view by electrode (24).

Figure 39 is the schematic perspective view by electrode jacket (25).

Figure 40 is the generalized section by electrode jacket (25).

Figure 41 is the generalized section had by electrode (24) and the spark plug by electrode jacket (25).

Figure 42 is by electrode (24) and the activity assembling generalized section by electrode jacket (25).

Figure 43 is the stereogram of electric discharge cartridge (11).

Figure 44 is the stereogram of the other direction of electric discharge cartridge (11).

Figure 45 is the sectional drawing of electric discharge cartridge (11).

Figure 46 is the worm's eye view of electric discharge cartridge (11).

Figure 47 is the worm's eye view of electric discharge cartridge (11).

Figure 48 is the schematic perspective view of the piston (31) having function waveform (32).

Figure 49 is the schematic top plan view of the piston (31) having function waveform (32).

Figure 50 has the right side of the piston of function waveform (32) (31) to look schematic diagram.

Figure 51 is the cross-sectional schematic of the piston (31) having function waveform and waveform pit (33).

Figure 52 is the schematic perspective view at another visual angle of the piston (31) having function waveform (32).

Figure 53 is the schematic perspective view at the another visual angle having the piston of function waveform (32) (31).

Figure 54 is the elevational schematic view of piston (31).

Figure 55 is the front-view schematic diagram of the piston (31) having function waveform (32).

Figure 56 is the schematic rear view of the piston (31) having function waveform (32).

Figure 57 has a left side for the piston of function waveform (32) (31) to look schematic diagram.

Figure 58 is provided with exhaust protruding (34), air inlet pit (35), the schematic perspective view having the piston (31) of function waveform (32) of spark pit (36).

Figure 59 is provided with exhaust protruding (34), and air inlet pit (35), schematic diagram is looked on the left side for the piston of function waveform (32) (31) that has of spark pit (36).

Figure 60 is provided with exhaust protruding (34), air inlet pit (35), the front-view schematic diagram having the piston (31) of function waveform (32) of spark pit (36).

Figure 61 is provided with exhaust protruding (34), air inlet pit (35), the schematic top plan view having the piston (31) of function waveform (32) of spark pit (36).

Figure 62 is provided with exhaust protruding (34), air inlet pit (35), the B-B cross-sectional schematic having the piston (31) of function waveform (32) of spark pit (36).

Figure 63 is provided with exhaust protruding (34), air inlet pit (35), the A-A cross-sectional schematic having the piston (31) of function waveform (32) of spark pit (36).

Figure 64 is by being provided with waveform pit (33), air inlet pit (35), the piston (31) having function waveform (32) of spark pit (36), and spark plug, the cross-sectional schematic of the firing chamber that valve forms.

Figure 65 is the sectional drawing of the left side line of vision of the piston adding two auxiliary shirt rim.

Figure 66 be the piston adding two auxiliary shirt rim positive side-looking to sectional drawing.

Figure 67 be with the through hole of piston and two auxiliary shirt rim the positive side-looking adding the piston of two auxiliary shirt rim to sectional drawing.

Figure 68 is the schematic perspective view that band scavenging road junction wedge turbulent flow returns the two stroke petrol engine cylinder of altering sheet reduction discharge.

Figure 69 is the close-up schematic view that band scavenging road junction wedge turbulent flow returns the two stroke petrol engine cylinder of altering sheet reduction discharge.

Figure 70 is the schematic diagram in the front of the left block of two-stroke gasoline engine of the two auxiliary ventilating hole reduction discharge narrowing left and right block.

Figure 71 is the schematic diagram of the reverse side of the left block of two-stroke gasoline engine of the two auxiliary ventilating hole reduction discharge narrowing left and right block.

Figure 72 is the schematic perspective view of the mounting point of two-stroke gasoline engine former left and right block.

Figure 73 is the schematic diagram of the right block of two-stroke gasoline engine of the two auxiliary ventilating hole reduction discharge narrowing left and right block.

Figure 74 is the schematic diagram that the two auxiliary ventilating hole narrowed that the two auxiliary ventilating hole narrowing left and right block reduces the left and right block of the two-stroke gasoline engine of discharge closes on the piston adding pair auxiliary shirt rim.

Figure 75 is the midship section schematic diagram of the left block of two-stroke gasoline engine of the two auxiliary ventilating hole reduction discharge narrowing left and right block.

Figure 76 is the schematic perspective view having two air flue walls to reduce the two stroke petrol engine cylinder of discharge.

Figure 77 be the two stroke engine cylinder interior of tool periodic function gibbs overshoot convergence ripple Fourier sheet wall cut schematic diagram.

Figure 78 is the upper schematic diagram of the two stroke engine cylinder interior of tool periodic function gibbs overshoot convergence ripple Fourier sheet wall.

Figure 79 is the left schematic diagram of the two stroke engine cylinder interior of tool periodic function gibbs overshoot convergence ripple Fourier sheet wall.

Figure 80 is the side schematic diagram of the two stroke engine cylinder interior of tool periodic function gibbs overshoot convergence ripple Fourier sheet wall.

Figure 81 is the rear schematic diagram of the two stroke engine cylinder interior of tool periodic function gibbs overshoot convergence ripple Fourier sheet wall.

Figure 82 is the positive schematic diagram of the two stroke engine cylinder interior of tool periodic function gibbs overshoot convergence ripple Fourier sheet wall.

Figure 83 is that schematic diagram is looked on a left side for the tool increasing right case of compression ratio and the two stroke engine left box body of function Fourier sheet wall.

Figure 84 is that schematic diagram is cutd open on a left side for the tool increasing right case of compression ratio and the two stroke engine left box body of function Fourier sheet wall.

Figure 85 is that schematic diagram is looked on the right side of the tool increasing right case of compression ratio and the two stroke engine right case of function Fourier sheet wall.

Figure 86 is that schematic diagram is cutd open on the right side of the tool increasing right case of compression ratio and the two stroke engine right case of function Fourier sheet wall.

Figure 87 is the schematic diagram that partial cut-out demonstrates the cylinder body of the two-stroke gasoline engine of the layering gas storage piston in cylinder.

Figure 88 is the schematic diagram of the cylinder body of the two-stroke gasoline engine of the layering gas storage piston at suction port place.

Figure 89 is the schematic diagram of the technique butt strip (55) in the outer portion at the scavenging road junction of joining cylinder body.

Figure 90 is the schematic diagram of the another angle of the technique butt strip (55) in the outer portion at the scavenging road junction of joining cylinder body.

Figure 91 be scavenging road junction be equipped with the cylinder body of technique butt strip (55) the schematic diagram of another angle.

Figure 92 is the schematic diagram that partial cut-out demonstrates the cylinder body of the two-stroke gasoline engine of the layered scavenging in cylinder.

Figure 93 is the schematic diagram that partial cut-out demonstrates the layering gas storage piston in parting face.

Figure 94 is the schematic diagram of the layering gas storage piston of partial cut-out.

Figure 95 is the schematic diagram that partial cut-out demonstrates the layering gas storage piston in parting face.

Figure 96 is the schematic diagram that local crosscut demonstrates the layering gas storage piston of cutting cross section.

Figure 97 is the front elevational schematic of layering gas storage piston.

Figure 98 is the schematic diagram that the complete section of layering gas storage piston cuts cross section.

Figure 99 is the schematic diagram of layering gas storage piston and crankshaft-link rod.

Figure 100 is the schematic diagram that partial cut-out demonstrates the cylinder body of the two-stroke gasoline engine of the layered scavenging in cylinder.

Figure 101 is the schematic diagram removing butt strip and demonstrate the cylinder body of the two-stroke gasoline engine of the layered scavenging in cylinder.

Figure 102 is the schematic diagram of conventional crankshaft-link rod.

Figure 103 is the bent axle (57) of the C type circle (56a) adding crank valve (56) and the schematic diagram of connecting rod.

Figure 104 is the schematic diagram adding the C type circle (56a) of crank valve (56) and the cylinder body of two-stroke gasoline engine.

Figure 105 is the schematic diagram adding the C type circle (56a) of crank valve (56) and the cylinder body of gap (56 δ) and two stroke engine.

Figure 106 is the schematic diagram of the C type circle (56a) adding crank valve (56).

Figure 107 is the schematic diagram at the C type edge (57a) of the bent axle (57) adding crank valve (56).

Figure 108 is the schematic diagram adding the C type circle (56a) of crank valve and the cylinder body of two stroke engine.

Figure 109 is the schematic diagram of the wedge circle (56b) adding crank valve (56).

Figure 110 is the schematic diagram of the pressure coil (56f) adding crank valve (56).

Figure 111 is the schematic diagram of the filter screen (58) in scavenge trunk.

Figure 112 is the schematic diagram of the wedge (11b) of noise abatement in scavenge trunk.

Figure 113 is the schematic diagram of the another side of the wedge (11b) of noise abatement in scavenge trunk.

Figure 114 is the schematic diagram of the another side of catalyst volume (59) of reduction of discharging in scavenge trunk.

Figure 115 is the generalized section that piston stroking upward to scavenging port is put.

Figure 116 is the generalized section put under piston stroking upward to scavenging port.

Figure 117 is the generalized section of piston stroking upward to top dead center.

Figure 118 is the generalized section that descent of piston is in position on relief opening top.

Figure 119 is the generalized section that descent of piston to scavenging port is put.

Figure 120 is the generalized section of piston to lower dead center.

Figure 121 is the generalized section of exhaust close.

Figure 122 is the generalized section that intakeport starts when opening.

In figure:

1. be with calibration (1a), zigzag fashion umbrella rib (1c), the outer calibration high-voltage coupler (1) of fixing hole (1b) and internal thread (1d); 2. are pad (2); 3. are insulators (3) of the multiple tracks umbrella rib of band saw-tooth shaped cross section; 4. be the interior induction reactance of threaded one end (4) and the threaded the other end (4b) and inductance coil (15); 5. are shells (5) of band radiating fin; 6. are S shape retaining washers (6); 7. are the glass-sealing agents (7) containing resistance; 8. be embed steel core (8); 9. are discharging electrode bar (9); 10. be by electrode tie rod (10); 11. is electric discharges cartridge (11); 12. is by electrode tip (12); 13. is by electrode tip shell (13); 14. is by electrode tip shell back-up ring (14); 15. is inductance coil (15); 16. is have extension (16a), arc portion (16b), the cranked electrode (16) of turn of bilge (16c); 17. is multiple sharp notch (17); 18. is roll over gap (18) more; 19. is lower outstanding (19); 20. is discharging gap (20); 21. is the electrodes (21) having many sides and Multiple level; 22. is the electrodes (22) having the round basin of side and middle part to dig acute angle star; 23. is have single electrode (23) having many sides and Multiple level by electrode stem; 121. is the electrodes (121) having many sides and many folding gaps; 12a. is basin shape (12a); 12b. is side ring cutting groove (12b); 12d is flabellum (12d); 12e is thread-shaped groove (12e); 24a is arc drum (24a); 24b is many sideshakes (24b); 25a is arc recessed (25a); 11a is side flabellum (11a); 11b is wedge (11b); 11c is screw thread or thread-shaped groove (11c); 31. is piston (31); 32. is function waveforms (32) of piston area; 33. is waveform pit (33); 34. is exhaust protruding (34); 35. is air inlet pit (35); 36. is spark pit (36); 37. is two auxiliary shirt rims; 38. is bases of two auxiliary shirt rim; 39. is lower fillets of the side of two auxiliary shirt rim; 40. is sides of two auxiliary shirt rim; 41. is upper fillets of the side of two auxiliary shirt rim; 42. is the concave arc limits on the base of two auxiliary shirt rim; 43. is through holes of piston and two auxiliary shirt rim; 44. is be with scavenging road junction wedge turbulent flow time to alter two of sheet reduction discharge to rush petrolic cylinder body; 45. is scavenging road junctions; 46. is that wedge turbulent flow time alters sheet; 47. is that wedge turbulent flow goes back to the scavenging road junction of altering sheet; 48. is that wedge turbulent flow returns the wedge of altering the logical scavenging road junction of sheet; 49. be wedge turbulent flow return alter the logical scavenging road junction of sheet return alter grid; 50. is that wedge turbulent flow returns the turbulent shield of altering the logical scavenging road junction of sheet; 51. is left blocks; 51b. is left two auxiliary ventilating hole; 51C. is long stiffening rib; 51d. is short stiffening rib; 51e. is reinforcement arm pawl; 51f. is rear wall; 52. is right blocks; 52b. is right two auxiliary ventilating hole; 53. is that two air flue walls are also called scavenging air belt partition wall; 53a. is the foot of a wall portion; 53b. is rear metope; 53c. is front metope; 53d. is wall end; 53j. is Fourier function breach; 54. is tool periodic function gibbs overshoot convergence ripple Fourier sheet walls; 54j. is transition flex point; 54k. is fluctuating convex-concave; 51g. is left prism; 51y. is left straight sided; 51h. is left broadside face; 52g. is right prism; 52y. is right straight sided; 52h. is right broadside face; 31a. is gas storage pit; 31b. is crosscut hatching; 44a. is ventilating hole; 44b. is into gas port; 44c. is into air scoop; 44d. is the first scavenging port; 44f. is the second scavenging port; 44e. is envelope high-wall; 55. is technique butt strips; 55g. is that interval is stupefied; 55e. is interval breach; 55d. is the first scavenging side wall; 55d. is the second scavenging side wall; 44j. is through radiation hole; 44k. is straight-through radiation hole; (44x, 44v) strengthens heat radiation in flakes; 56. is crank valves; 56a. is C type circle; 57. is bent axles; 56 δ. be gap; 57a. is C type edge; 56b. is wedge circle; 56f. is pressure coil (56f).

Usefulness: energy-saving and emission-reduction, it is the two-cycle gasoline engine of plus-pressure crank valve control pre-burning scavenging under scavenge trunk, it is characterized in that, described has the valve gear with crankshaft-synchronous, it is the C type circle (56a) adding crank valve (56) on bent axle (57), the C type circle of described crank valve (56) has the dual-side of a bit of opening to be set to the pressure coil (56f) at oblique angle, when the logarithmic spiral side of the dual-side of a bit of opening of described pressure coil is with crankshaft rotating, affect the effect of air-flow and buffering with regard to the logarithmic spiral of mineralization pressure angle properties equivalent everywhere when the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder.Gap (56 δ) between the oral area of the connection crankcase of the scavenge trunk of the cylinder of the external diameter distance motor 1E38F of the outer circle of described pressure coil is at 0.02-0.08 millimeter, thus the two-cycle gasoline engine of plus-pressure crank valve control pre-burning scavenging under being formed in scavenge trunk.

Embodiment

With reference to the overshoot convergence ripple of the Gibbs phenomenon of the overshoot of the continuous transition of rectangular wave of the Fourier function in the Method of Mathematical Physics of higher mathematics and with reference to lag theorem, shifting theorem, convolution theorem and launch by the approximate single circular frequency of Fourier function be approximately the frequency spectrum of decaying gradually copying fourier series to draw multiple from diminishing greatly from the close spike of thin change, the high level overview of what mathematical physics was described should be many actual phenomenons, engine blow-through air turbulent motion rule also should not make an exception and surmount completely, also some should be had similar or inherent relevant or bring out the best in each other and more or less ought use for reference it, on the forming die core rod of transfer mold, manufacture the transition flex point (54j) of imitating close to the top of the described Fourier function breach (53j) relevant with the inherence seemed and high-wall have at least one close to 90 degree turn round shape its be approximately gibbs overshoot restrain ripple with namely imitating fourier series gibbs overshoot phenomenon draw approach rectangle transition ripple gradually and be approximately the frequency spectrum of decaying gradually that imitative fourier series draws have multiple fluctuating convex-concave (54k) from diminishing greatly from the close spike of thin change, so that shaping cylinder body Idiotype body affects air-flow as mainstay.What have imitative higher mathematics function and Fourier person's movements and expression has having of the frequency spectrum of decaying gradually having the transition flex point (54j) on guiding and the Fourier function breach (53j) of damping characteristic and the top of high-wall and imitative fourier series to draw of suitable linear performance multiple comprehensively favourable to noise high frequency band, rate of explosion, compression ratio from the fluctuating convex-concave (54k) of the close spike of thin change from diminishing greatly.

With reference to the quadratic function curve shape of the equipotentiality streamline of the family of parabolas in the Method of Mathematical Physics of higher mathematics, there is directive significance to the flow direction of many gas storage of layering gas storage piston.CNC digital control processing, by the equipotentiality streamline of the side family of parabolas of scavenging air belt, can be used in the outside of described envelope high-wall (44e).Also can use CNC digital control processing for one section of scavenging air belt logarithmic spiral, logarithmic spiral and the equal everywhere advantage of its tool pressure angle of equiangular spiral, be conducive to the air motion of scavenging air belt.Two scavenging air belt interworkings, first its tool pressure angle of scavenging road junction equiangular spiral is equal everywhere, and the quadratic function curve shape of the equipotentiality streamline of the second scavenging road junction family of parabolas, the Method of Mathematical Physics that higher mathematics is imitated at scavenging road junction is R&D direction, should be better than blindly gathering together with high number scientific guidance test.The high level overview of what mathematical physics was described should be many actual phenomenons, engine blow-through air rule also should not make an exception.Assemble (and sintered ceramic and welding are by electrode tie rod) respectively successively with calibration 1a, zigzag fashion umbrella rib 1c, the outer calibration high-voltage coupler 1 of fixing hole 1b and internal thread, pad 2, the insulator 3 of the multiple tracks umbrella rib with saw-tooth shaped cross section, the interior induction reactance of threaded one end 4 and threaded the other end 4b and inductance coil 15, shell 5, the S shape retaining washer 6 of band radiating fin, containing the glass-sealing agent 7 of resistance, embed steel core 8, discharging electrode bar 9, by electrode tie rod 10, electric discharge cartridge 11, by electrode tip 12, by electrode tip shell 13, by electrode tip shell back-up ring 14.Described with calibration 1a, zigzag fashion umbrella rib 1c, a groove at least opened by the electric conductor of the outer calibration high-voltage coupler 1 of fixing hole 1b and internal thread, or multiple-grooved; Preferably the number of multiple-grooved is by angle value; Such as, the number of degrees of certain spark plug are 6, then number of slotting is 6; The number of degrees of certain spark plug are 7, then number of slotting is 7.The electric conductor of the fluting of described joiner 1 being screwed in threaded one end 4 and knocks fixing hole 1b makes spark plug make.Spark plug is screwed in the tapped hole of motor, S shape retaining washer 6 is closely fastened.Be inserted with the spark cap of rubber or plastic insulation shell, that the electric conductor of joiner 1 is connected with high pressure external connection and in cap electrically conductive socket is connected.When to ignition advance angle, electric current is successively by joiner 1, the interior induction reactance of threaded one end 4 and threaded the other end 4b and inductance coil 15, containing the glass-sealing agent 7 of resistance, embeds steel core 8, discharging electrode bar 9, by electrode tie rod 10, electric discharge cartridge 11, by electrode tip 12, by electrode tip shell 13, and at electric discharge cartridge 11 with by electric discharge between electrode tip 12.Described part 4, part 15, part 7, part 8, part 9 insulated body 3 particularly ceramic body surrounded, just meeting coupling capacitive reactance mutually, and described resistance and inductance have the effect of series parallel connection RCL equivalent circuit, and allotment suitably, just has the effect of anti-radio interference.Shell 5 with radiating fin is because there being the heat diffusion area of the radiating fin more much bigger than original cylindrical body, and it is self-evident that its thermal diffusivity is improved to some extent.Described with calibration 1a, zigzag fashion umbrella rib 1c, the zigzag fashion umbrella rib 1c of the outer calibration high-voltage coupler 1 of fixing hole 1b and internal thread, zigzag fashion in the outer part and the angle of axis more slow, the socket in order to spark cap more easily inserts; And the angle of zigzag fashion in the inner part and axis is comparatively steep namely comparatively large, the socket in order to spark cap is not easily deviate from.The groove depth of described fluting is the only about half of of joiner overall length; Fluting and its effect of not slotting are different, be easy to the socket that micro-expansion forms multijaw and favourable spark cap and not easily deviate from after electric conductor fluting.Because the described feature being provided with the shell 5 of band radiating fin is provided with radiating fin 5a, radiating fin 5b, radiating fin 5c, particularly described radiating fin is hexagonal, or circle, so original steel material will be utilized as far as possible, make radiating fin originally a part will be retained by the material cut away in vain.Described radiating fin has at least one or more.Radiating fin can be processed with cutter with the hex wrench nut on it.When being also convenient to install, socket wrench can be inserted in deeper and more, not easily skids.Because as improvement, the present invention improves common single ordinary telegram very cranked electrode 16 especially; It is characterized in that: described cranked electrode 16, as shown in figure 15, by extension 16a, arc portion 16b, turn of bilge 16c formed, and this three part is equal with the spacing of discharging electrode, thus forms the discharging gap by electrode and discharging electrode, and than original front head, the probability increase that the absolute quantity being conducive to the mixed air in gap increases and catches fire.The residual gas at discharging gap place wishes to clean, and mixed air is easily caught fire, this to warming-up and low-load performance effect larger; But do not wish that strong air-flow directly rushed at discharging gap at ignition point, thus dispelled fiery core, increased the cyclical variations rate of in-cylinder pressure, cause even catching fire, and by extension 16a, arc portion 16b, the described cranked electrode 16 that turn of bilge 16c forms, beneficial to this; This cranked electrode 16 also can be arranged in pairs or groups by function waveform piston, and best wave height C gets 0.5-0.9, and wave number N gets 15-21.

As the embodiment 2 of improvement 2, because the special modified electrode of the present invention is the electrode 12 having many sides and many folding gaps, it not only has aforesaid by extension 16a, arc portion 16b, three parts that turn of bilge 16c forms, equal with the spacing of discharging electrode, thus the discharging gap formed by electrode and discharging electrode, and than original front head, be also provided with multiple sharp notch 17 especially, so, in first stage and the breakdown phase of spark-ignition process, when being conducive to electric discharge, making the ion current having punctured mixed gas, march on towards discharging electrode from by electrode.Although Peak current is large, the time of whole breakdown phase is very short, is only ten microseconds, therefore multiple sharp notch 17 is feasible.Again because each electrode stem 10 that is subject to is connected with by electrode 12, and have many folding gaps 18 by the middle part of electrode 12, be conducive at the second stage of spark-ignition process and arcing phase, and in phase III of spark-ignition process and glow discharge stage, favourablely open discharge channel, and easily make many folding gaps have more multi-hop fire passage, and mixed gas is easily made to circulate.This electrode 12 also can only with half, and there is discharging gap its end face and side, can the collocation of function waveform piston.

As the embodiment 3 of improvement 3, the special modified electrode of the present invention is the electrode 21 having many sides and Multiple level, because it not only has aforesaid by extension 16a, arc portion 16b, this three part that turn of bilge 16c forms, equal with the spacing of discharging electrode, thus form the discharging gap by electrode and discharging electrode, and than original front head, be also provided with multiple sharp notch 17 especially; Each by electrode stem be connected as one by electrode, be convenient to manufacture; Again because the described two ends making discharging gap 20 at the middle part of the electrode 21 of many sides and Multiple level that have have lower outstanding 19, the described lower bottom of outstanding 19 is lower than discharging electrode top, and its use has added the front of sideflash.Particularly described have the transverse features of the electrode 21 of many sides and Multiple level to be at least a slice, or be more than two panels, such as three.Be preferably multi-disc, so be conducive to forming grid grid dot matrix effect, thus increase the possibility of electric fiery core and cydariform electric discharge; Because under engine operational conditions, static ignition of mixed gas energy only needs 0.2 MJ, the ignition of mixed gas energy of high flow velocities only needs 3 MJs, and the energy of classic ignition system supply is greater than 30 MJs, namely 10 times amount are had, this feature of positive good utilisation, design multi-disc grid grid of the present invention, at various physical field such as aerodynamic field, electric field, and fluid field turbulent flow, and under electrochemical comprehensive function, micro-between easy formation grid grid trembles, and favourablely shrugs off carbon deposit and favourable discharging gap forms discharge channel.As the embodiment 3 of improvement 4, because described has the electrode 21 of many sides and Multiple level or removes single by electrode stem, its feature specialization has single electrode 23 having many sides and Multiple level by electrode stem, so its usefulness not still material-saving, and micro-the trembling that can be formed between grid grid and favourablely shrug off carbon deposit and favourable discharging gap forms discharge channel; Therefore this electrode can be arranged in pairs or groups with without function waveform piston that is protruding especially and pit.

As the embodiment 5 of improvement 5, the special modified electrode of the present invention is the electrode 22 having the round basin of side and middle part to dig acute angle star, because it is characterized in that having the round basin of side and middle part to dig acute angle star; Not only there is basin shape to have end face not only but also have side, thus added the front of sideflash; Dig acute angle star in the middle part of it, referred to that the angle of its star pawl stretched out of star is acute angle; Its feature particularly acute angle, instead of right angle or obtuse angle.Or a star, or two stars, or multiple star, preferably five-pointed star, so be conducive to the wedge effect of discharging gap and point discharge effect and form asymmetric multipoint random discharge channel, be conducive to increasing the possibility of electric discharge and remove carbon deposit, the electrode of acute angle star is conducive to the continuity of electrical spark effect and the spark sharp side distortion caused by turbulent flow, molecule interpenetrates, and turbulent flow velocity increases.This electrode is fitted and is arranged in pairs or groups with there being the waveform piston of spark pit 36.

There is the internal combustion engine ignition device of active receiving electrode and fine motion discharging electrode, have from fine motion function and changeable electrodes core, with interchangeable for a long time.Because electrode 12 and electrode shell 13 are by the described screw thread that is provided with by the inside of electrode tip shell 13 or the movable assembling mutually of thread-shaped groove, there are oligodynamics, and block by by electrode tip shell back-up ring 14, can change, also can work, but in order to strengthen jiggle effect further, obtain more preferably fine motion and effect of trembling, be conducive to electric discharge and repel carbon deposit, as improvement 6, the special modified electrode 12 of the present invention for have arc drum 24a by electrode tip 24, and improve by electrode tip shell 13 for have the recessed 25a of arc by electrode tip shell 25, be aided with aforesaid other all, become the internal combustion engine ignition device that another money has active receiving electrode and fine motion discharging electrode.Due to by electrode tip 24, be provided with arc drum 24a, and many sideshakes 24b.Arc drum 24a and the recessed 25a fine motion of arc match, little the sphere of activities such as 0.1mm can be had up and down, simultaneously, particularly arc drum 24a can rotate relative to the recessed 25a of arc, so the recessed rotatability of arc drum is better than the screw thread of original part or thread-shaped groove, therefore during arcing, the trend of its fine setting and carbon deposition removal is more excellent; The place that during electric discharge, first time punctures, at second time and be next still the position of easily hitting, because the shake of electrode and fine motion are particularly rotated, with regard to the place that relative two electrodes were punctured last time, relatively-stationary electric discharge place cannot not turn to fixingly and avoids, thus makes the displacement of multiple discharge place, and discharges each time and just have electrode molecule to be translated into gaseous state and loss, therefore its usefulness is self-evident, extends the life-span of electrode and be beneficial to carbon deposition removal.Shake and the fine motion of electrode are particularly rotated, and are easily to obtain under the vibration condition in kinetic energy engine.Due to described electric discharge cartridge 11 and the inside by electrode tip 24, be analogous to by electrode tip 12, form discharging gap by the basin shape of top and ring sidepiece, and have multiple wedge angle cut out and the thread-shaped groove digging multiple ring week at ring sidepiece at top, favourable arcing.The many sideshakes 24b particularly set up in discharging gap district, is characterized in that being provided with at least one at described ring sidepiece, or 2, or it is multiple, particularly 6 through openings, are conducive to flowing and the discharge carbon deposit of mixed gas, and particularly rotate to shake and fine motion to provide additional air-flow.Because the feature of the wedge 11b of described electric discharge cartridge 11 is provided with the polygonal pyramid dug out at its upper end, particularly criss-cross polygonal pyramid, therefore be conducive to the edgetone effect of igniting ion current, make in the basin shape gap containing end face and ring side of spark plug, local adds the gap of polygonal pyramid especially, the position part that fiery karyomorphism is become leaves wall, there is a buffer cells, the impact being stuck near wall residual gas can be avoided, simultaneously, coordinate the many sideshakes 24b set up, particularly arc drum 24a is relative to the rotation of the recessed 25a of arc, be conducive to wedge collision and the turbulence effect of mixed gas, add electric discharge cartridge 11 and be subject to the fine motion of electrode tip 24 and effect of trembling, the absolute quantity of the mixed gas in gap is increased, the probability caught fire also increases, in addition, wedge collision and turbulent flow are also conducive to repelling carbon deposit Molecular flow, part in wedge and in basin shape gap has the mixture of liquefaction tendency, not only there is the opportunity of Arc Discharge, and the cydariform electric discharge having similar electric discharge machining to discharge, thus, its General makes sparkover Quality advance, performance of operating condition is better.The criss-cross polygonal pyramid of the wedge 11b of described electric discharge cartridge 11, can be utilized to the instrument putting thread, and the screw thread of wedge 11b or thread-shaped groove 11c and discharging electrode bar 9 are matched.Described is subject to electrode tip 12 and the cross by electrode tip 24, also can be utilized to the instrument putting thread.The side flabellum 11a of described electric discharge cartridge 11 has complementary micro-transferring to use and complementary discharge process.This electrode is suitable for arranging in pairs or groups with there being the waveform piston of spark pit 36.Spark pit 36 increases seed region, and air inlet pit 33 increases air inlet flowing, and exhaust pit 33 has squish effect, and function wave helps deflagration wave and disseminates.

Because described multiple improvement can be selected for various type, and also can revise advance angle time on probation and regulate and control high-voltage pulse parameter in the hope of better.The special improvement 7 proposed, is make the positive and negative commutation of high electric field pulse and change direction, also can tries out in addition.Although spark-ignition process is very complicated, the mankind still have many aspects not clear so far, and we know that the positive and negative of electricity has Different Effects to discharging electrode with by the loss of electrode.Improving 7 is a kind of methods for reducing export license, is the positive and negative commutation making voltage x current, and this is not difficult to realize with electromagnetism class and electrical type circuit, such as, use astatic multivibrator and differentiator; The number of times or synchronous with engine speed of commutation, or interval, or interval commutation in some periods, be worth improving further.Described various improvement, are all conducive to increasing the possibility of electric discharge and remove carbon deposit and reduce export license, maybe will select after particularly firing angle carrys out pilot according to different types, and arrange in pairs or groups with the firing chamber of function wave that has of improvement when practicality.

The present invention relates to a kind of improvement of internal-combustion engine have the firing chamber of function wave and with the matching method of internal combustion engine ignition device having active receiving electrode and fine motion discharging electrode; Combustion-chamber geometry is proposed adaptive and arrange in pairs or groups with ignition mechanism and just have the theory of preferably effect with engine model, the suggestion of the method for the collocation of combustion chambers of internal combustion engines and each ignition mechanism is proposed, function wave firing chamber and the function wave firing chamber with Parabolic convex-concave adaptation are also provided, are beneficial to energy-saving and emission-reduction; There is multiple or multiple combination the described firing chamber of function wave that has, and the piston area of composition firing chamber is function waveform or multiple combination, and such as sinusoidal wave equation is:

SDi＝C*SIN(TRAJPAR*360*N)

But for the difference of various vortex-like squish turbulent flow, computer mould be had to fit kinds of experiments, and wave height C and wave number N will arrange in pairs or groups.Such as, adapted cranked electrode 16, best wave height C gets 0.5-0.9, and wave number N gets 15-21; Be conducive to the diffusion of mixed gas along waveform.Because the function waveform of the piston area of described firing chamber is 32, and the middle part of the function waveform 32 of piston area in described firing chamber is provided with waveform pit 33, it is characterized in that the envelope of described pit is curve, particularly involute, or parabola; The piston of described firing chamber is 31; And the function waveform 32 of the piston area of described firing chamber or other functions, such as involute, parabola, and the round inner vortex adopting post system of coordinates; And the function waveform 32 of the piston area of the piston 31 in described firing chamber, be provided with waveform pit 33, also be provided with exhaust protruding 34, and be provided with air inlet pit 35, and be provided with spark pit 36, it is characterized in that: the envelope of described exhaust projection 34 is curves, particularly involute, or parabola, and its projection is in the position near exhaust valve, the projection of exhaust valve and exhaust protruding 34 in other words has overlapping of part or local, and projection is thrown on the face vertical with piston movement direction; The envelope of described air inlet pit 35 is curves, particularly involute, or parabola, and its pit is in the position near intake valve, intake valve and the projection of air inlet pit 35 in other words have part or local overlap, projection be throw on the face vertical with piston movement direction; The envelope of described spark pit 36 is curves, particularly involute, or parabola, and its pit is in the position near spark plug, spark plug and the projection of spark pit 36 in other words have part or local overlap, projection is thrown on the face vertical with piston movement direction, so exhaust protruding 34 is when outlet valve closes, has squish effect.Air inlet pours firing chamber from the ring week of suction valve, and has part to be formed in the counterclockwise vortex flow in the northern hemisphere at air inlet pit 35, strengthens mixed effect; After suction valve is closed, partial-air admission forms little vortex at spark pit 36, the diffusion of favourable igniting and fiery core; The function waveform 32 of piston area further improves proximity and the uniformity of the distribution of shock wave and the Fourier Series of propagation.

Because as improvement, so that general, on the function waveform 32 of the piston area of the piston 31 in described firing chamber, be provided with waveform pit 33, also be provided with exhaust protruding 34, and be provided with air inlet pit 35, and spark pit 36, and exhaust protruding 34, and air inlet pit 35, and the envelope of spark pit 36 is all curve, particularly involute, or parabola; And described exhaust projection 34, and air inlet pit 35, and the position of spark pit 36 according to piston centre trisection uniform, roughly not far from its ideal position region, therefore also have suitable effect.

Beneficial effect of the present invention and object are energy-saving and emission-reduction, are conducive to removing carbon deposit and Loss reducing, arrange in pairs or groups and raise the efficiency in function ripple firing chamber, improvement firing chamber operating mode, and can select for various type.But the invention that the mankind aspire after perfection is endless, piston also has very large potentiality to dig.The so-called best geometry of firing chamber and piston is no doubt important, but with engine model adaptation and will arrange in pairs or groups with ignition mechanism, just has preferably effect.Particularly two-stroke gasoline engine is poorer than the fuel economy of four-stroke gasoline engine, and the hydrocarbon emission in tail gas often exceeds standard.Combustion chambers of internal combustion engines and piston and the collocation with ignition mechanism are hard nut to cracks relating to energy-saving and emission-reduction.Again in Jia Shuanfu shirt rim, piston skirt, finally unexpectedly have and reduce discharging effect up to standard.

A kind of petrol engine reducing hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt, containing piston and known firing chamber, spark plug, cylinder cap, cylinder barrel, connecting rod, crankcase, oil pump, lubrication system, oil-fired system, ignition system, cooling system, it is characterized in that: the skirt section of described piston (31) is equipped with two auxiliary shirt rim (37); Described two auxiliary shirt rim (37) be retain original piston do not have on the basis of former two shirt rims of the bilateral of connecting rod pin-and-hole, and have the following of the bilateral of connecting rod pin-and-hole in the skirt section of piston (31), every while add an auxiliary shirt rim, can be described as two auxiliary shirt rim (37); Described two auxiliary shirt rim, it is containing the through hole (43) of base (38), lower fillet (39), side (40), upper fillet (41), the concave arc limit (42) on base, piston and two auxiliary shirt rim, it is conducive to auxiliary guiding, auxiliary row falls, and lubrication assistant and heat radiation; Described two auxiliary shirt rim or with aluminum alloy, rheo-die-casting is integrated; Or with composite material as highly dense plastics or micropore ceramics, to reduce cylinder prepareding gap, auxiliary guiding, also wear-resisting.

Described a kind of petrol engine reducing hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt that further experiment improves, it is characterized in that: each auxiliary shirt rim of described two auxiliary shirt rim (37) and described former two shirt rims are all the cylindrical prolongations along outside piston week, and its projection is thrown on the face vertical with piston movement direction along the outside piston week quartering, if by 1234 circumferentially, former two shirt rims are 1,3; Auxiliary shirt rim is 2,4; Add heat dispersing surface.

Described a kind of petrol engine reducing hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt that further experiment improves, it is characterized in that: the both sides of described two auxiliary shirt rim (37) are provided with the side (40) of two auxiliary shirt rim, and it connects the base (38) of piston (31) and two auxiliary shirt rim; Two auxiliary shirt rim, slightly as inverted trapezoidal, is conducive to intensity.

Described a kind of petrol engine reducing hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt that further experiment improves, it is characterized in that: the both sides of described two auxiliary shirt rim (37) are provided with the side (40) of two auxiliary shirt rim, it connects piston (31) by the upper fillet (41) of the side of two auxiliary shirt rim, therefore be conducive to intensity.

Described a kind of petrol engine reducing hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt that further experiment improves, it is characterized in that: the both sides of described two auxiliary shirt rim (37) are provided with the side (40) of two auxiliary shirt rim, it connects the base (38) of two auxiliary shirt rim by the lower fillet (39) of the side of two auxiliary shirt rim, therefore be conducive to intensity.

Described a kind of petrol engine reducing hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt that further experiment improves, is characterized in that: concave arc limit (42) is established on the base of described two auxiliary shirt rim (37); Described concave arc limit (42) or circular arc, or involute, or parabola, or other functions, in order to play turbulent flow and sweep residual effect should and auxiliary row falls.

Reduce the petrol engine of hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt, tentatively reach the effect of requirement.Originally discharge value is 60-70 usually, does not reach 50 numbers up to standard; What add two auxiliary shirt rim is 49, reaches.

A kind of embodiment, adds motor testing conditions and the data of two auxiliary shirt rim:

The emissions data of the motor of two auxiliary shirt rim is added under above-mentioned testing conditions:

Finally be worth the discharge value being often taken as hydrocarbon, mark one is 50, adds two auxiliary shirt rim just by up to standard.

This returning at logarithmic differentiation isogonal line shirt rim, piston skirt turbulent flow alters the petrol engine falling row, put into practice for many years and find out, also be the crystallization of domestic and foreign experience, its usefulness is conducive to the guiding length of lengthened piston and auxiliary guiding to make it good, it two is that favourable booster action reduces hydrocarbon emission in mixed gas, and it three is favourable lubrication assistant and heat radiation.

Silkworm in spring to dead silk not to the utmost, is improved invention and has no limits; Wear out iron shoes on a rare occasion to obtain, clino-diagonal is warded off in energy-saving and emission-reduction.The present invention relates to the firing chamber in a kind of fuel-burning equipment and ignition mechanism, especially internal-combustion engine improvement have the firing chamber of function wave and with have active receiving electrode and fine motion discharging electrode internal combustion engine ignition device collocation basis on, and reduce on the petrolic basis of hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt, the band scavenging road junction wedge turbulent flow of further improvement returns alters the two-stroke gasoline engine that sheet reduces discharge, be improved to logarithmic differentiation isogonal line shirt rim, piston skirt turbulent flow time more further and alter the petrol engine falling row, belong to firing chamber and the additional turbulence scavenging of internal-combustion engine and reduce the technical field of discharging.Beneficial effect of the present invention and object are energy-saving and emission-reduction, are conducive to removing carbon deposit and Loss reducing; Arrange in pairs or groups and raise the efficiency in function ripple firing chamber, improvement firing chamber operating mode, in Jia Shuanfu shirt rim, piston skirt, has and reduce discharging effect up to standard, and can select for various type.But the invention that the mankind aspire after perfection is endless, piston and scavenging also have very large potentiality to dig.The so-called best geometry of firing chamber and piston is no doubt important, but with engine model adaptation and will arrange in pairs or groups with ignition mechanism, just has preferably effect.Particularly two-stroke gasoline engine is poorer than the fuel economy of four-stroke gasoline engine, and the hydrocarbon emission in tail gas often exceeds standard; Combustion chambers of internal combustion engines and piston and the collocation with ignition mechanism and scavenging are hard nut to cracks relating to energy-saving and emission-reduction.If reduce the petrol engine of hydrocarbon emission in Jia Shuanfu shirt rim, piston skirt, have an unexpected effect, handlebar discharges 60 grams dropping to 49 grams and can reach 50 grams of target embodiments in other words; So, alter two of sheet reduction discharge with scavenging road junction wedge turbulent flow time and rush petrol engine, have beyond thought reduction of discharging effect up to standard especially, not only can reach 50 grams of marks, and 39.9 grams can be dropped to, this rushes petrolic reduction of discharging up to standard in enormous quantities two is outstanding contributions.Everybody knows that two impact machine discharges often exceed standard, but nobody can thoroughly solve; This scavenging road junction wedge turbulent flow returns alters sheet, and be add small pieces at the scavenging road junction of two qi of chong channel ascending adversely cylinders, seem simple, but nobody can find out; Be who the unexpected small pieces that will go at the scavenging road junction place of cylinder to burn-on refill up and start the engine and contact with high speed piston.Its usefulness has well to reduce discharging effect up to standard.Although spark-ignition process and the detailed physical and chemical processes of two-stroke very complicated, the mankind still have many aspects not clear so far, but we perhaps can tentatively think, this scavenging road junction wedge turbulent flow returns alters sheet, turbulent flow is produced at scavenging road junction place's wedge, the possibility channeling to gas handling system is returned to exhaust gases after combustion and has retardation, it seemingly belongs to turbulent flow ventilation, for the known cross flow scavenging of two stroke IC engine, loop scavenging and uniflow scavenging three kinds of ventilation scheme, open an approach of altering sheet at scavenging road junction wedge turbulent flow time that can reduce discharging, referred to as the clino-diagonal of turbulent scavenging.Although the mechanism of its atom level needs to be explored future, it is determined in the application at two-stroke gasoline engine scavenging road junction.

A kind of returning with scavenging road junction wedge turbulent flow alters the two-stroke gasoline engine that sheet reduces discharge, comprise cylinder body, and known firing chamber, spark plug, cylinder cap, piston, connecting rod, crankcase, oil pump, lubrication system, oil-fired system, ignition system, cooling system, gas handling system, described cylinder body (44) is the cylinder body (44) at the scavenging road junction (45) centrally symmetrically containing left and right each on the cylinder chamber of dress piston of two-stroke gasoline engine, it is characterized in that: on the scavenging road junction (45) of the left and right each of the symmetry of described cylinder body (44), each each ground, left and right is symmetrically provided with wedge turbulent flow time and alters sheet (46), block waste gas and return in order to producing turbulent flow at scavenging road junction place and alter to reduce discharge.

Scavenging road junction logarithmic differentiation equation turbulent flow is returned and is altered the two-stroke gasoline engine that row falls in sheet, containing cylinder body, and known firing chamber, spark plug, cylinder cap, piston, connecting rod, crankcase, oil pump, lubrication system, oil-fired system, ignition system, cooling system, gas handling system, described cylinder body (44) is the cylinder body (44) at the scavenging road junction (45) centrally symmetrically containing left and right each on the cylinder chamber of dress piston of two-stroke gasoline engine, it is characterized in that: on the scavenging road junction (45) of the left and right each of the symmetry of described cylinder body (44), each each ground, left and right is symmetrically provided with wedge turbulent flow time and alters sheet (46), its main body is pressure angle close to a section of the equal logarithmic spiral by logarithmic differentiation equation, utilize the feature that the logarithmic spiral tool pressure angle of higher mathematics is equal, the turbulent flow added is returned and alters one section that sheet has logarithmic spiral, then gush mixed air-flow thereon just easily steadily, produce turbulent flow in order to utilizing equal pressure angle at scavenging road junction place and return alter to reduce discharge to block waste gas.

Get scavenging road junction logarithmic differentiation equation turbulent flow to return and alter one section that the main body of the described sheet of the two-stroke gasoline engine of row falls in sheet,

Set up differential equation d ρ/d θ=k ρ:

By pressure angle formula tg λ=ρ '/ρ,

Just there is ρ '/ρ=k,

Differential it, just have differential equation d ρ/d θ=k ρ.

Solve d ρ/d θ=k ρ, both sides integration after variables separation:

∫ d ρ/ρ=∫ kd θ, because of ρ > 0, is easy to get:

lnρ＝kθ+C，

Namely:

ρ＝Ae ^kθ+C＝e ^c.e ^kθ＝Ae ^kθ

A is wherein constant, is to be determined by workpiece and the size of mould and the initial conditions of CNC machine.

Opening relationships (RELATION), namely equation of the present invention is:

Logarithmic curve:

z＝0

x＝10*t

y＝log(10*t+0.0001)

Make logarithmic curve;

Again then, adopt and rotate, merge, the instructions such as materialization, and assemble with workpiece and merge, get final product modeling;

Use described equation and the modeling of PRO/ENGINEERWILDFIRE institute again, input CNC machining center, with CIMATRO or MASTCAM, the punching block of superzapping cast aluminium alloy, or with milling machine, planer and electrical spark working work auxiliary; When using electric discharge machining, with described equation input CNC machining center, then to first make tungsten copper electrode, with the lathe having three-dimensional rotation head, then produce in batches with die casting machine; Machining again; Or be welded on piston skirt with the sheet of another system.Logarithmic curve cam, intermediate work should.

Logarithmic differentiation isogonal line shirt rim, piston skirt turbulent flow returns alters the petrol engine falling row, is equipped with to return for scavenging road junction logarithmic differentiation equation turbulent flow and alters the two-stroke gasoline engine that row falls in sheet, have excellent effect especially.

Former usual discharge value is 60-70, does not reach 50 numbers up to standard; What add two auxiliary shirt rim is 49, arrives reluctantly; And be now 39.9! Another example, two scavenging road junctions and logarithmic differentiation equation turbulent flow are returned and are altered sheet and fall row's two-stroke gasoline engine testing conditions and data:

Finally be worth the discharge value being often taken as hydrocarbon, mark one is 50, adds two auxiliary shirt rim just by up to standard; Logarithmic differentiation isogonal line shirt rim, piston skirt turbulent flow returns alters the petrol engine falling row and joins scavenging road junction and add sheet, and the discharge value of hydrocarbon is 39.93.

Logarithmic differentiation isogonal line shirt rim, the piston skirt turbulent flow that this basis improving motor is improved further returns alters the petrol engine falling row, put into practice for many years and find out, also be the crystallization of domestic and foreign experience, in the hope of tolerance and form and position tolerance surplus larger, such safety coefficient is large, waster is few, and this is up to standard to the reduction of discharging of two-stroke gasoline engine in enormous quantities is outstanding contributions.If it is better that effect is worked as in multiple improvement integrated application: the improvement containing multiple spark plug adds interior induction reactance as multiple fixed electrode, changes outer calibration joiner, adds shell radiating fin, if movable and fine motion electrode; The collocation of firing chamber and various ignition mechanism, containing function wave firing chamber and the function wave firing chamber with Parabolic convex-concave adaptation; In Jia Shuanfu shirt rim, piston skirt; Isogonal line shirt rim; And the scavenging arrangement of cylinder body; Usefulness and the prospect of multiple improvement integrated application are good.

Logarithmic differentiation isogonal line shirt rim, a kind of piston skirt turbulent flow returns alters the petrol engine falling row, containing piston, and known firing chamber, spark plug, cylinder body, cylinder cap, cylinder barrel, connecting rod, crankcase, oil pump, lubrication system, oil-fired system, ignition system, cooling system, described cylinder body (44) is two cylinder bodies (44) rushing the petrolic scavenging road junction (45) centrally symmetrically containing left and right each on the cylinder chamber of dress piston, on the scavenging road junction (45) of the left and right each of the symmetry of described cylinder body (44), each each ground, left and right is symmetrically provided with wedge turbulent flow time and alters sheet (46), described piston is characterized in that: the skirt section of described piston (31) is equipped with two auxiliary shirt rim (37), described two auxiliary shirt rim (37) be retain original piston do not have on the basis of former two shirt rims of the bilateral of connecting rod pin-and-hole, and have the following of the bilateral of connecting rod pin-and-hole in the skirt section of piston (31), every while add an auxiliary shirt rim, can be described as two auxiliary shirt rim (37), described two auxiliary shirt rim, it is containing base (38), lower fillet (39), side (40), upper fillet (41), the concave arc limit (42) on base, the through hole (43) of piston and two auxiliary shirt rim, described piston is characterized in that the logarithm line of piston skirt logarithmic differentiation equation also claims isogonal one section to be located at shirt rim, the limit of the part of its shirt rim is pressure angle close to a section of the equal logarithmic spiral by logarithmic differentiation equation, utilize the feature that the logarithmic spiral tool pressure angle of higher mathematics is equal, the sheet added is made to have a section of logarithmic spiral, the mixed air-flow then gushed thereon is just easily steady, produce turbulent flow in order to utilizing equal pressure angle at scavenging road junction place to return alter to reduce discharge to block waste gas, auxiliary guiding, additional turbulence is returned and is altered and fall row, and lubrication assistant and heat radiation, described two auxiliary shirt rim or with aluminum alloy, or with composite material to reduce cylinder prepareding gap.

Get one section that logarithmic differentiation isogonal line shirt rim, piston skirt turbulent flow goes back to the limit of the part of the main body of altering the petrolic described shirt rim falling row,

Set up differential equation d ρ/d θ=k ρ:

By pressure angle formula tg λ=ρ '/ρ,

Just there is ρ '/ρ=k,

Differential it, just have differential equation d ρ/d θ=k ρ.

Solve d ρ/d θ=k ρ, both sides integration after variables separation:

∫ d ρ/ρ=∫ kd θ, because of ρ > 0, is easy to get:

lnρ＝kθ+C，

Namely:

ρ＝Ae ^kθ+C＝e ^c.e ^kθ＝Ae ^kθ

Opening relationships (RELATION), namely equation of the present invention is:

Logarithmic curve:

z＝0

x＝10*t

y＝log(10*t+0.0001)

Make logarithmic curve;

Again then, adopt and rotate, merge, the instructions such as materialization, and assemble with workpiece and merge, get final product modeling, be also convenient to volume production.

Use described equation and the modeling of PRO/ENGINEERWILDFIRE institute again, input CNC machining center, with CIMATRO or MASTCAM, the punching block of superzapping cast aluminium alloy, or with milling machine, planer and electrical spark working work auxiliary; When using electric discharge machining, with described equation input CNC machining center, then to first make tungsten copper electrode, with the lathe having three-dimensional rotation head, then produce in batches with die casting machine; Machining again; Be welded on piston shirt rim with the sheet on the limit of the tool logarithm line of another system, also can use.

Because described logarithmic differentiation isogonal line shirt rim, the piston skirt turbulent flow improved further returns alter the petrol engine falling row, it is characterized in that: each auxiliary shirt rim of described two auxiliary shirt rim (37) and described former two shirt rims are all the cylindrical prolongations along outside piston week, and its projection is thrown on the face vertical with piston movement direction along outside piston week many deciles, and the part of each described auxiliary shirt rim is one section of tool logarithm line, thus pressure angle close to and operate steadily.

Because described logarithmic differentiation isogonal line shirt rim, the piston skirt turbulent flow improved further returns alter the petrol engine falling row, it is characterized in that: each auxiliary shirt rim of described two auxiliary shirt rim (37) than described former two shirt rims along the cylindrical body in outside piston week extend longer, that is, the base (38) of two auxiliary shirt rim is more farther than base distance connecting rod pin-and-hole on the direction of the cylindrical body elongation line along piston of former two shirt rims, namely two auxiliary shirt rim is higher, piston and skirt section longer, its effect is conducive to the guiding length of lengthened piston and auxiliary guiding, and the part of the guiding length of lengthened piston has blind hole to speckle with gas-liquid mixture and lubrication assistant, and pressure angle close to and operate steadily.

Because described logarithmic differentiation isogonal line shirt rim, the piston skirt turbulent flow improved further returns alter the petrol engine falling row, it is characterized in that: the both sides of described two auxiliary shirt rim (37) are provided with the side (40) of two auxiliary shirt rim, it connects the base (38) of piston (31) and two auxiliary shirt rim, its side has at least while be a section of tool logarithm line, thus pressure angle close to and operate steadily.

Because described logarithmic differentiation isogonal line shirt rim, the piston skirt turbulent flow improved further returns alter the petrol engine falling row, it is characterized in that: the both sides of described two auxiliary shirt rim (37), be provided with the side (40) of the two auxiliary shirt rim on the base (38) connecting piston (31) and two auxiliary shirt rim, macroscopically angle is greater than 91 degree, or the side of its both sides has at least while be a section of tool logarithm line, thus pressure angle close to and operate steadily.

Because described logarithmic differentiation isogonal line shirt rim, the piston skirt turbulent flow improved further returns alter the petrol engine falling row, it is characterized in that: the both sides of described two auxiliary shirt rim (37) are provided with the side (40) of two auxiliary shirt rim, it connects piston (31) by the upper fillet (41) of the side of two auxiliary shirt rim, and the feature of upper fillet (41) is that it is one section of tool logarithm line, thus pressure angle close to and operate steadily.

Because described logarithmic differentiation isogonal line shirt rim, the piston skirt turbulent flow improved further returns alter the petrol engine falling row, it is characterized in that: the both sides of described two auxiliary shirt rim (37) are provided with the side (40) of two auxiliary shirt rim, it connects the base (38) of two auxiliary shirt rim by the lower fillet (39) of the side of two auxiliary shirt rim, and the feature of upper fillet (41) is that it is one section of tool logarithm line, thus pressure angle close to and operate steadily.

Because described logarithmic differentiation isogonal line shirt rim, the piston skirt turbulent flow improved further returns alter the petrol engine falling row, it is characterized in that: concave arc limit (42) is established on the base of described two auxiliary shirt rim (37); Described concave arc limit (42) is characterized in that it is one section of tool logarithm line, thus pressure angle close to and operate steadily and be beneficial to and auxiliary fall row.

Because described logarithmic differentiation isogonal line shirt rim, the piston skirt turbulent flow improved further returns alter the petrol engine falling row, it is characterized in that: the through hole (43) described two auxiliary shirt rim (37) being established not rounded, or the irregular blind hole differed in size, therefore pressure angle close to and operate steadily and be beneficial to lubrication assistant and heat radiation.

Because described logarithmic differentiation isogonal line shirt rim, the piston skirt turbulent flow improved further returns alter the petrol engine falling row, it is characterized in that: the upper and piston in described two auxiliary shirt rim (37) is provided with the through hole (43) of multiple not rounded, its slightly arrangement in del, there are many rows, the most descending through hole is many, more up work hole less and or have blind hole, hang gas-liquid thing and lubrication assistant and heat radiation in order to being stained with.

New a kind of two auxiliary ventilating hole narrowing left and right block reduces two of discharge and rushes petrol engine, containing left block, right block, piston, and known firing chamber, spark plug, cylinder body, cylinder cap, cylinder barrel, connecting rod, crankcase, oil pump, lubrication system, oil-fired system, ignition system, cooling system, described cylinder body (44) is two cylinder bodies (44) rushing the petrolic scavenging road junction (45) centrally symmetrically containing left and right each on the cylinder chamber of dress piston, on the scavenging road junction (45) of the left and right each of the symmetry of described cylinder body (44), each each ground, left and right is symmetrically provided with wedge turbulent flow time and alters sheet (46), the skirt section of described piston is equipped with two auxiliary shirt rim (37), described two auxiliary shirt rim (37) be retain original piston do not have on the basis of former two shirt rims of the bilateral of connecting rod pin-and-hole, and have the following of the bilateral of connecting rod pin-and-hole in the skirt section of piston (31), every while add an auxiliary shirt rim, can be described as two auxiliary shirt rim (37), described two auxiliary shirt rim, it is containing base (38), lower fillet (39), side (40), upper fillet (41), the concave arc limit (42) on base, the through hole (43) of piston and two auxiliary shirt rim, described piston is characterized in that the logarithm line of piston skirt logarithmic differentiation equation also claims isogonal one section to be located at shirt rim, the limit of the part of its shirt rim is pressure angle close to a section of the equal logarithmic spiral by logarithmic differentiation equation, utilize the feature that the logarithmic spiral tool pressure angle of higher mathematics is equal, the sheet added is made to have a section of logarithmic spiral, the mixed air-flow then gushed thereon is just easily steady, produce turbulent flow in order to utilizing equal pressure angle at scavenging road junction place to return alter to reduce discharge to block waste gas, described two auxiliary shirt rim or with aluminum alloy, or with composite material to reduce cylinder prepareding gap, using CNC machining center, will first make tungsten copper electrode, with there being the lathe of three-dimensional rotation head to assist molding, then producing in batches with die casting machine, machining and plating again, described left block and right block is characterized in that: described left block and right block are respectively provided with and change the little two auxiliary ventilating hole narrowed, described two auxiliary ventilating hole is located at left block and is just called left two auxiliary ventilating hole (51b), described two auxiliary ventilating hole is located at right block and is just called right two auxiliary ventilating hole (52b), described left block and right block assemble Face to face, and with being connected above of the scavenging air belt of cylinder body, the two auxiliary ventilating hole (51b) in a left side that two scavenging air belts of described cylinder body are provided with described left block (51) is respectively connected with the two auxiliary ventilating hole (52b) in the right side that described right block (52) is provided with, it is the two auxiliary ventilating hole of the left and right block narrowed, the two auxiliary shirt rim (37) be equipped with when described two auxiliary ventilating hole and the skirt section of piston run to described in piston lower close to time, just be beneficial to and narrow local volumetric, strengthen local air flow pressure and flow velocity and additional turbulence to return and alter and fall row.

Two air flues are had to reduce the two-stroke gasoline engine of discharge, containing left block, right block, piston, firing chamber, spark plug, cylinder body, cylinder cap, cylinder barrel, connecting rod, crankcase, oil pump, lubrication system, oil-fired system, ignition system, cooling system, described cylinder body (44) is two cylinder bodies (44) rushing the petrolic scavenging road junction (45) centrally had containing left and right symmetrically on the cylinder chamber of dress piston, on the scavenging road junction (45) that the left and right of the symmetry of described cylinder body (44) has, each each ground, left and right is symmetrically provided with wedge turbulent flow time and alters sheet (46), the skirt section of described piston is equipped with two auxiliary shirt rim (37), described two auxiliary shirt rim (37) be retain original piston do not have on the basis of former two shirt rims of the bilateral of connecting rod pin-and-hole, and have the following of the bilateral of connecting rod pin-and-hole in the skirt section of piston (31), every while add an auxiliary shirt rim, so be referred to as two auxiliary shirt rim (37), described two auxiliary shirt rim, it is containing base (38), lower fillet (39), side (40), upper fillet (41), the concave arc limit (42) on base, the through hole (43) of piston and two auxiliary shirt rim, the logarithm line of its piston skirt logarithmic differentiation equation of described piston also claims isogonal one section to be located at shirt rim, the limit of the part of its shirt rim is pressure angle close to a section of the equal logarithmic spiral by logarithmic differentiation equation, utilize the feature that the logarithmic spiral tool pressure angle of higher mathematics is equal, wedge turbulent flow is returned and alters one section that blade has logarithmic spiral, the mixed air-flow then gushed thereon is just easily steady, produce turbulent flow in order to utilizing equal pressure angle at scavenging road junction place to return alter to reduce discharge to block waste gas, described two auxiliary shirt rim or with aluminum alloy, or with composite material to reduce cylinder prepareding gap, using CNC machining center, will first make tungsten copper electrode, with there being the lathe of three-dimensional rotation head to assist molding, then producing in batches with die casting machine, machining and plating again, described left block and right block are respectively provided with and change the little two auxiliary ventilating hole narrowed, described two auxiliary ventilating hole is located at left block and is just called left two auxiliary ventilating hole (51b), described two auxiliary ventilating hole is located at right block and is just called right two auxiliary ventilating hole (52b), described left block and right block assemble Face to face, and with being connected above of the scavenging air belt of cylinder body, the two auxiliary ventilating hole (51b) in a left side that two scavenging air belts of described cylinder body are provided with described left block (51) is respectively connected with the two auxiliary ventilating hole (52b) in the right side that described right block (52) is provided with, it is the two auxiliary ventilating hole of the left and right block narrowed, the two auxiliary shirt rim (37) be equipped with when described two auxiliary ventilating hole and the skirt section of piston run to described in piston lower close to time, just be beneficial to and narrow local volumetric, strengthen local air flow pressure and flow velocity and additional turbulence to return and alter and fall row, the wedge turbulent flow time that upper each each ground, left and right symmetrically, scavenging road junction (45) of the left and right each of the described two auxiliary ventilating hole narrowing left and right block and the symmetry of described cylinder body (44) is provided with alters both adapteds of sheet (46), both adapteds of the two auxiliary shirt rim (37) that the skirt section of the described two auxiliary ventilating hole and described piston that narrow left and right block is equipped with, the described two auxiliary ventilating hole narrowing left and right block, the wedge turbulent flow that upper each left and right symmetrically, the scavenging road junction (45) had with the left and right of the symmetry of described cylinder body (44) is provided with having returns alters sheet (46), and with two auxiliary shirt rim (37) three's adapted that the skirt section of described piston is equipped with, have and fall row's effect, the rear wall (51f) of the two auxiliary ventilating hole (51b) in the left side that the described left block (51) narrowing the two auxiliary ventilating hole of left and right block is provided with is thicker, thinnest part is no less than 1.5mm, and have the oblique angle being greater than 12 degree, so that root is thicker and gain in strength, the described left block (51) narrowing the two auxiliary ventilating hole of left and right block is provided with multiple reinforcement arm pawl (51e), and the rectangular cross-section of each reinforcement arm pawl is thicker, and thinnest part is greater than 1.5mm, so that cross section is thicker and gain in strength, the back side of the two auxiliary ventilating hole (51b) in the left side that the described left block (51) narrowing the two auxiliary ventilating hole of left and right block is provided with is provided with long stiffening rib (51c), narrows two larger local compression caused by auxiliary ventilating hole to gain in strength to resist, the back side of the pit of the two auxiliary ventilating hole (51b) in the left side that the described left block (51) narrowing the two auxiliary ventilating hole of left and right block is provided with is provided with short stiffening rib (51d), narrows two larger local compression caused by auxiliary ventilating hole to gain in strength to resist, the two auxiliary ventilating hole (52b) in the right side that the described right block (52) narrowing the two auxiliary ventilating hole of left and right block is provided with is pit, the length, width and height of its pit are identical with the two auxiliary ventilating hole (51b) in a left side for described left block (51), to gain in strength, resist and narrow two larger local compression caused by auxiliary ventilating hole, it is characterized in that: the two auxiliary ventilating hole (52b) in the right side that the described right block (52) narrowing the two auxiliary ventilating hole of left and right block is provided with is pit, the length, width and height of its pit are identical with the two auxiliary ventilating hole (51b) in the left side that described left block (51) is provided with, length, width and height on the motor of 1E36 type and single-cylinder double stroke cylinder diameter 36 millimeters are for being not more than 20x7.2x4.8mm, narrow local volumetric with convenient, strengthen local air flow pressure and flow velocity and additional turbulence and return and alter and fall row, on the cylinder chamber of the dress piston of the cylinder body (44) of two-stroke gasoline engine, centrally be provided with the scavenging road junction (45) that left and right has symmetrically, be further characterized in that, on the scavenging road junction (45) that the left and right of the symmetry of described cylinder body (44) has, each each ground, left and right is symmetrically provided with scavenging air belt partition wall (53), thus described scavenging road junction (45) is divided into two, and then form the revolutionary improvement that substantial two-stroke gasoline engine list scavenging air belt changes the many scavenging air belts of two-stroke gasoline engine into, in order to retardance, many and waste gas returns and alters less thus reduce discharge, described scavenging air belt partition wall (53) is by the foot of a wall portion (53a), wall end (53d), front metope (53c), rear metope (53b) formed, the front metope (53c) of described scavenging air belt partition wall (53) and rear metope (53b) extend along the piston movement direction of the cylinder chamber of the dress piston of described cylinder body (44), the foot of a wall portion (53a) of described scavenging air belt partition wall (53) and being connected in the inner wall section of cylinder body (44) of described scavenging road junction (45), wall end (53d) and the piston sliding contact of described scavenging air belt partition wall (53), thus be formed with the two-stroke gasoline engine that two air flues reduce discharge.

Usefulness of the present invention: a kind of two-cycle gasoline engine of the gas stratiform scavenging of precombustion that makes in scavenge trunk is the two-stroke gasoline engine having two air flues to reduce discharge, have and exceed imaginary reduction of discharging effect up to standard, not only can reach 50 grams of marks, and 39.9 grams can be dropped to, certainly this is only fragmentary data, and surplus is comparatively large, and safety coefficient is large, waster is few, and this is up to standard significant to the reduction of discharging of two-stroke gasoline engine in enormous quantities; Multiple improvement integrated application, better its of effect is beneficial to and produces turbulent flow at scavenging road junction place and return to alter reduce discharge to block waste gas; A kind of two auxiliary ventilating hole narrowing left and right block again described in improving further reduces on the two-stroke gasoline engine of discharge, the ad hoc described two auxiliary ventilating hole narrowing left and right block, be provided with wedge turbulent flow time on one ground, upper each left and right symmetrically, the scavenging road junction (45) of the left and right each of the symmetry of described cylinder body (44) and alter sheet (46), and the two auxiliary shirt rim (37) to be equipped with the skirt section of described piston and with two air flue adapteds, have and morely fall row.The two-cycle gasoline engine of the gas stratiform scavenging of precombustion is made in scavenge trunk, on the scavenging road junction (45) of cylinder body (44), respectively be provided with scavenging air belt partition wall (53), thus scavenging road junction (45) are divided into two, and then form the revolutionary improvement that substantial two-stroke gasoline engine list scavenging air belt changes the many scavenging air belts of two-stroke gasoline engine into, in order to retardance, many and waste gas returns and alters less thus reduce discharge; Described scavenging air belt partition wall (53) is made up of the foot of a wall portion (53a), wall end (53d), front metope (53c), rear metope (53b), the wall end (53d) of described scavenging air belt partition wall (53) and piston sliding contact, thus formed and easily to start and namely two-stroke gasoline engine containing many scavenging air belts partition wall has two air flues to reduce the two-stroke gasoline engine of discharge.Itself and the ad hoc two auxiliary ventilating hole narrowing left and right block, and return with the wedge turbulent flow be provided with and alter sheet (46), and with two auxiliary shirt rim (37) adapted that piston skirt is equipped with, have and more fall row's effect; With two air flue adapteds, have more row's effect of falling because two air flues are beneficial to than single air flue, the waste gas turbulent flow group of anxious poly-convergence to be dispersed out, the main flow of scavenge flow to reflux and direct current along the cylinder axis of scavenging air belt partition wall just forms turbulent scavenging just being formed to two air flues by vaporizer list air flue.The front metope (53c) of scavenging air belt partition wall (53) that each ground, left and right is provided with symmetrically on the scavenging road junction (45) of cylinder body (44) stretches out along the radial direction with piston in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along from described scavenging road junction (45) mutually angularly with rear metope (53b), the angle of described front metope (53c) and rear metope (53b) mutual 6 degree, the front metope (53c) of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) had in the left and right of the symmetry of described cylinder body (44) is provided with and rear metope (53b) along from described scavenging road junction (45) in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along with the extending radially out of piston, described front metope (53c) and rear metope (53b) are the arc-shaped curved surfaces of involute, at described cylinder body, (44) the scavenging road junction that the left and right of symmetry has, (45) the scavenging air belt partition wall that on, each each ground, left and right is symmetrically provided with, (53) front metope, (53c) with rear metope, (53b) along from described scavenging road junction, (45) at cylinder body, (44) the foot of a wall portion that inner wall section is connected, (53a) along with the extending radially out of piston. described front metope, (53c) with rear metope, (53b) be that the equiangular spiral that pressure angle is equal everywhere is also called logarithmic spiral face, the top of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the described scavenging road junction (45) making the two-cycle gasoline engine of the gas stratiform scavenging of precombustion it is characterized in that having in the left and right of the symmetry of described cylinder body (44) in scavenge trunk is provided with is provided with Fourier function breach (53j), and have gibbs overshoot to approach rectangle described Fourier function breach (53j) and the tie point of described the foot of a wall portion (53a), the described scavenging road junction (45) making the two-cycle gasoline engine of the gas stratiform scavenging of precombustion be further characterized in that in scavenge trunk to have in the left and right of the symmetry of described cylinder body (44) is provided with tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54), the stifled high-wall that described tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) is a side from scavenging road junction (45) and stretches out along the circumferencial direction in the piston cylinder of cylinder body (44), it highly exceedes the half (degree of depth is the axial direction along piston) of scavenging road junction (45) degree of depth.

Update the perfect described two-cycle gasoline engine making the gas stratiform scavenging of precombustion in scavenge trunk, it is characterized in that: the stifled high-wall that the described high-wall of the tool periodic function gibbs overshoot that is provided with on the scavenging road junction (45) that the left and right of the symmetry of described cylinder body (44) has convergence ripple Fourier sheet wall (54) is a side from scavenging road junction (45) and stretches out along the circumferencial direction in the piston cylinder of cylinder body (44), it is highly 90% (highly and the degree of depth are all axial directions along piston) of scavenging road junction (45) degree of depth.

Update the perfect described two-cycle gasoline engine making the gas stratiform scavenging of precombustion in scavenge trunk, it is characterized in that: the described high-wall of the tool periodic function gibbs overshoot that is provided with on the scavenging road junction (45) that the left and right of the symmetry of described cylinder body (44) has convergence ripple Fourier sheet wall (54) is a side from scavenging road junction (45) and stretches out a stifled high-wall of 6-12mm along the circumferencial direction in the piston cylinder of cylinder body (44), it is highly the 80%-90% (height and the degree of depth are all the axial directions along piston) of scavenging road junction (45) degree of depth.

Update the perfect described two-cycle gasoline engine making the gas stratiform scavenging of precombustion in scavenge trunk, it is characterized in that: the tool periodic function gibbs overshoot be provided with on the scavenging road junction (45) that the left and right of the symmetry of described cylinder body (44) has restrains a described side from scavenging road junction (45) of ripple Fourier sheet wall (54) and is provided with transition flex point (54j) along the top blocking up high-wall that the circumferencial direction in the piston cylinder of cylinder body (44) stretches out.

Update the perfect described two-cycle gasoline engine making the gas stratiform scavenging of precombustion in scavenge trunk, it is characterized in that: the described side from scavenging road junction (45) of the tool periodic function gibbs overshoot that is provided with on the scavenging road junction (45) that the left and right of the symmetry of described cylinder body (44) has convergence ripple Fourier sheet wall (54) and the bottom of a stifled high-wall of stretching out along the circumferencial direction in the piston cylinder of cylinder body (44) be provided with multiple fluctuating convex-concave (54k) its be approximately the frequency spectrum of decaying gradually that imitative fourier series draws multiple from diminish greatly from thin change close spike.

Update the perfect described two-cycle gasoline engine making the gas stratiform scavenging of precombustion in scavenge trunk, it is characterized in that: the Fourier function breach (53j) that the top of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) that the left and right of the described symmetry at cylinder body (44) has is provided with is provided with is containing being approximately the sinusoidal odd function of Fourier and the approximate ventilating hole being used as the wave only having single circular frequency that imitative fourier series draws.

Update the perfect described two-cycle gasoline engine making the gas stratiform scavenging of precombustion in scavenge trunk, it is characterized in that: the Fourier function breach (53j) that the top of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) that the left and right of the described symmetry at cylinder body (44) has is provided with is provided with is the ventilating hole of S shape.

The present invention relates to energy-saving and emission-reduction, is the two-cycle gasoline engine of the gas stratiform scavenging making precombustion in scavenge trunk; It is multiple from diminishing greatly from the close spike of thin change that die sinking is approximately the frequency spectrum of decaying gradually copying fourier series to draw, the high level overview of what mathematical physics was described should be many actual phenomenons, engine blow-through air turbulent motion rule also should not make an exception and surmount completely, and some also should be had similar or inherent relevant or bring out the best in each other and more or less ought use for reference it; The transition flex point (54j) of Fourier function breach (53j) and high-wall its be approximately that gibbs overshoot convergence ripple i.e. imitative fourier series ground gibbs overshoot phenomenon draws approach rectangle transition ripple gradually and be approximately the frequency spectrum of decaying gradually that imitative fourier series draws have multiple fluctuating convex-concave (54k) from diminishing greatly from the close spike of thin change; So that shaping cylinder body Idiotype body affects air-flow as mainstay.What have imitative higher mathematics function has fair line and guiding and damping characteristic comprehensively favourable to noise high frequency band, rate of explosion, compression ratio.Compression ratio be exactly engine mixed gas body by the degree compressed, represent with the ratio of volume of cylinder (i.e. combustion chamber volume) after the cylinder total volume before compression and compression.Compression ratio and engine performance have much relations, and common low pressure compression ratio refers to compression ratio below 10, and high compression ratio is more than 10, and compression ratio is higher comparatively speaking, and the power of motor is larger.The described pit making the tool of the two-cycle gasoline engine of the gas stratiform scavenging of precombustion increase the ventilating hole of the right case of compression ratio in scavenge trunk varies in size, and the pit of the ventilating hole (51b) of described left box body is containing left prism (51g), left straight sided (51y) and left broadside face (51h); The pit of the ventilating hole (52b) of described right case is containing right prism (52g), right straight sided (52y) and right broadside face (52h); Described left prism (51g) is 59-60 degree to the left with the angle of Ji Gang center, the mating face split surface of left box body; Described left straight sided (51y) is 89-90 degree with the angle of Ji Gang center, the mating face split surface of left box body; Described right prism (51g) is 60-61 degree to the right with the angle of Ji Gang center, the mating face split surface of right case; Described right straight sided (51y) is 90-91 degree with the angle of Ji Gang center, the mating face split surface of right case; Described left broadside face (51h) is arc shaped surface, and described right broadside face (52h) is also arc shaped surface, or the arc shaped surface of one of logarithmic spiral section of composition.The length, width and height of the volume of the pit of the two auxiliary ventilating hole (52b) in its described right side in the air-cooled 1E33F type of the cylinder diameter φ 33 of the single-cylinder double stroke of two stroke engine are for being not more than 18.7x3.3x6.7mm.The length, width and height of the volume of the pit of the two auxiliary ventilating hole (51b) in its described right side in the air-cooled 1E33F type of the cylinder diameter φ 33 of the single-cylinder double stroke of two stroke engine are for being not more than 13x2.2x5.5mm.Tool increases the right case of compression ratio and the two stroke engine of function Fourier sheet wall and has narrowed local volumetric, increases local air flow pressure and flow velocity and additional turbulence and returns and alter and favourablely fall row.

The present invention relates to energy-saving and emission-reduction, it is the two-cycle gasoline engine of the gas stratiform scavenging making precombustion in scavenge trunk, its cylinder body (44) is containing ventilating hole (44a), enter gas port (44b), the each symmetry in left and right enter air scoop (44c), first scavenging port (44d) of each symmetry in left and right, second scavenging port (44f) of each symmetry in left and right, namely the outside of the envelope high-wall closed does not depend on piston cylinder to lean on the side of scavenging air belt to be curvilinerar figure, and coexist with the technique butt strip (55) in the outer portion at the scavenging road junction of cylinder body, technique butt strip (55) is containing interval stupefied (55g), interval breach (55e), first scavenging side wall (55d), second scavenging side wall (55d), three mounting hole site and special-shaped packing, and be formed with the scavenging road junction of cavity, piston (31) is provided with the gas storage pit (31a) of each around, described gas storage pit its slightly resemble a pear in shape, there is CONCENTRIC REDUCER, less near wrist pin axle bed place, it is larger away from wrist pin axle bed place, the crosscut hatching (31b) of described gas storage pit is curve, the thickness of the section of the crosscut hatching (31b) of described gas storage pit is greater than 2mm, the curve of the crosscut hatching (31b) of described gas storage pit is the equipotentiality streamline of family of parabolas, one section of its streamline is the quadratic function meeting the family of parabolas of the analytic function of the harmonic function of Laplacian equation of the flow function imitating Method of Mathematical Physics, be conducive to gas storage scavenging.The equipotentiality streamline of family of parabolas and tool logarithmic spiral there is imitative higher mathematics function have fair line and guiding and damping characteristic, comprehensively to noise high frequency band, rate of explosion, to compress when layered scavenging favourable.The upper top of the second scavenging side wall (55d) of described technique butt strip (55) is that the quadratic function curve of family of parabolas is to lean on the coexistence of the quadratic function curve shape of the equipotentiality streamline of the family of parabolas of the side of scavenging air belt with the outside of described envelope high-wall (44e) and to form the second scavenging road junction.Or curve family of parabolas and logarithmic spiral are used instead.The upper top of the second scavenging side wall (55d) of technique butt strip (55) be curve itself and the described envelope high-wall (44e) of tool logarithmic spiral equipotentiality streamline outside by the logarithmic spiral equipotentiality streamline of the side of scavenging air belt curvilinerar figure coexistence and form the second scavenging road junction.Or curve family of parabolas equipotentiality streamline, or family of parabolas and logarithmic spiral adapted.Adapted is: the upper top of the first scavenging side wall (55d) of described technique butt strip (55) be curve itself and the described envelope high-wall (44e) of logarithmic spiral equipotentiality streamline outside by the logarithmic spiral equipotentiality streamline of the side of scavenging air belt curvilinerar figure coexistence and form the first scavenging road junction; Meanwhile, the upper top of the second scavenging side wall (55d) of described technique butt strip (55) be quadratic function curve itself and the described envelope high-wall (44e) of family of parabolas outside by the equipotentiality streamline of the family of parabolas of the side of scavenging air belt the coexistence of quadratic function curve shape and form the second scavenging road junction in the hope of the comprehensive guide leading role to gas storage scavenging.

With reference to the quadratic function curve shape of the equipotentiality streamline of the family of parabolas in the Method of Mathematical Physics of higher mathematics, there is directive significance to the flow direction of many gas storage of layering gas storage piston.CNC digital control processing, by the equipotentiality streamline of the side family of parabolas of scavenging air belt, can be used in the outside of described envelope high-wall (44e).Also can use CNC digital control processing for one section of scavenging air belt logarithmic spiral, logarithmic spiral and the equal everywhere advantage of its tool pressure angle of equiangular spiral, be conducive to the air motion of scavenging air belt.Two scavenging air belt interworkings, first its tool pressure angle of scavenging road junction equiangular spiral is equal everywhere, and the quadratic function curve shape of the equipotentiality streamline of the second scavenging road junction family of parabolas, the Method of Mathematical Physics that higher mathematics is imitated at scavenging road junction is R&D direction, should be better than blindly gathering together with high number scientific guidance test.The high level overview of what mathematical physics was described should be many actual phenomenons, engine blow-through air rule also should not make an exception.

Update the perfect described two-cycle gasoline engine making the gas stratiform scavenging of precombustion in scavenge trunk, it is characterized in that: described cylinder body (44) is provided with multiple reinforcement heat radiation in flakes (44x, 44v) between its multiple radiating fin; And described cylinder body (44) is provided with through radiation hole (44j) in the cross-sectional direction of relief opening; And be also provided with straight-through radiation hole (44k) in the cross-sectional direction of the suction port of described cylinder body (44), therefore often there is improvement in the place of ignoring people.

The present invention relates to energy-saving and emission-reduction, it is the two-cycle gasoline engine of the gas stratiform scavenging making precombustion in scavenge trunk, its cylinder body (44) is containing ventilating hole (44a), enter gas port (44b), the each symmetry in left and right enter air scoop (44c), first scavenging port (44d) of each symmetry in left and right, second scavenging port (44f) of each symmetry in left and right, namely the outside of the envelope high-wall closed does not depend on piston cylinder to lean on the side of scavenging air belt to be curvilinerar figure, and coexist with the technique butt strip (55) in the outer portion at the scavenging road junction of cylinder body, technique butt strip (55) is containing interval stupefied (55g), interval breach (55e), first scavenging side wall (55d), second scavenging side wall (55d), three mounting hole site and special-shaped packing, and be formed with the scavenging road junction of cavity, piston (31) is provided with the gas storage pit (31a) of each around.The equipotentiality streamline of family of parabolas and tool logarithmic spiral have imitative higher mathematics function have fair line and guiding and damping characteristic comprehensively to noise high frequency band, rate of explosion, to compress when layered scavenging favourable.

Its feature of two-cycle gasoline engine adding the scavenging of filter screen valve control pre-burning in scavenge trunk is, the present invention is near piston top dead center, before ignition of mixed gas above piston compressed in cylinder, due to piston train of dress portion moving, the preparation intakeport in latch-release cylinder is opened, in the crankcase below piston, suck the mixed gas of fuel and air, again due to the pressure of the combustion gas above the piston of igniting generation, piston moves from upper dead center to lower dead centre direction and closes intakeport simultaneously, mixed gas in compression crankcase, on the piston of bottom dead center-nearby, make combustion gas in cylinder to while outdoor gas is discharged from opening and closing relief opening, by the scavenge air belt that crankcase is connected with cylinder, on piston, in latch-release cylinder, by preparation scavenging port mixed gas imported to the two cycle engine in cylinder from crankcase, the design has the valve gear with crankshaft-synchronous, and this valve is from crankcase to cylinder scavenging mouth, and the crankcase side of scavenge air belt is configured to normally closed, when the valve-closing of the crankcase side of scavenge air belt, mixed gas in scavenge air belt makes it by the flame of combustion gas burning of igniting, after HC reduces again from crankcase to scavenging port, the crankcase side of scavenge air belt makes it opening, while the burning mixed gas of scavenge air belt is sent, mixed gas in crankcase closed relief opening before relief opening is discharged, the two cycle engine that Here it is makes the discharge of HC significantly reduce, solve in former structure, with the valve of above-mentioned bent axle same period because not being designed, the words that after the flame extinction of combustion gas, scavenging port is not also opened, the flame of combustion gas can make the mixed gas ignition in scavenge air belt and crankcase, mixed gas cannot be supplied in cylinder, the opening of relief opening will make the opening of scavenging port cross early stage unlatching, relief opening in cylinder and scavenging port at the same time opening time, unblended mixture in crankcase and in scavenge air belt enters in cylinder from relief opening, so a part for mixed gas is discharged from relief opening under unburned state, become the problem that the mixed gas (i.e. HC) in Exhaust Gas increases, the present invention is outside described intakeport relief opening scavenging port, after crankcase scavenging, opening and closing valve has been added in the crankcase side of scavenge air belt, mixed gas in scavenge air belt is ignited and is burnt in the flame of combustion gas, and be that the valve of synchronizing cycle can be truncated according to bent axle in scavenge air belt and crankcase, so the mixed gas in crankcase can not burn, combustion gas simultaneously in scavenge air belt with the valve openings in crankshaft-synchronous cycle in, mixed gas in crankcase can be extruded out in cylinder, initial stage relief opening and scavenging port while during opening, combustion gas in scavenge air belt are fed in cylinder, can not be adulterated in the exhaust gas be discharged from relief opening to outside HC, when relief opening is about to close, in spent mixed gas in scavenge air belt, the unblended mixture continued in crankcase is fed in cylinder, so the HC amount of adulterating in exhaust gas can control to reduce.Described has the valve gear with crankshaft-synchronous, it is the C type circle (56a) adding crank valve (56) on bent axle (57), described C type circle has a bit of opening, when a bit of opening of described C type circle is with crankshaft rotating, and the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder is formed, thus be formed in scavenge trunk the two-cycle gasoline engine adding the scavenging of filter screen valve control pre-burning.

The described two-cycle gasoline engine adding the scavenging of filter screen valve control pre-burning in scavenge trunk of further Improvement and perfection, it is characterized in that, described has the valve gear with crankshaft-synchronous, the oral area that bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the connection crankcase of the scavenge trunk of latch-release cylinder is formed, and the gap (56 δ) between the oral area of the connection crankcase of the scavenge trunk of the cylinder of the external diameter distance motor 1E34F of the outer circle of described C type circle is at 0.01-0.06 millimeter; Be further characterized in that, described has the valve gear with crankshaft-synchronous, bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder is formed, the dual-side of a bit of opening of described C type circle to the central angle in the bent axle center of circle at 80-96 degree.

Usefulness of the present invention: be near piston top dead center, before ignition of mixed gas above piston compressed in cylinder, due to piston train of dress portion moving, the preparation intakeport in latch-release cylinder is opened, in the crankcase below piston, suck the mixed gas of fuel and air; Its effect exhaust HC is measured reduce.

Design key is that piston moves from upper dead center to lower dead centre direction and closes intakeport simultaneously, and namely in piston length and cylinder, gas port distance matches, and this contemplates just is not difficult to arrive at figure subscript, and processing is not also difficult to apply, and its effect exhaust HC is measured reduce.

Improve plus-pressure crank valve control pre-burning scavenging under scavenge trunk two-cycle gasoline engine described in have the valve gear with crankshaft-synchronous, it is the C type circle (56a) adding crank valve (56) on bent axle (57), the C type circle of described crank valve (56) has the dual-side of a bit of opening to be set to the wedge circle (56b) at oblique angle, when its a bit of opening dual-side have the side at oblique angle with crankshaft rotating, just form shear flow when the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder and reduce the effect suddenling change and impact, thus be formed in the two-cycle gasoline engine of Zhong Jia gap, scavenge trunk crank valve control pre-burning scavenging.

The two-cycle gasoline engine of the described plus-pressure crank valve control pre-burning scavenging under scavenge trunk of further Improvement and perfection, it is characterized in that, described has the valve gear with crankshaft-synchronous, the oral area that bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the connection crankcase of the scavenge trunk of latch-release cylinder is formed, and the gap (56 δ) between the oral area of the connection crankcase of the scavenge trunk of the cylinder of the external diameter distance motor 1E34F of the outer circle of described C type circle is at 0.01-0.06 millimeter.

The two-cycle gasoline engine of the described plus-pressure crank valve control pre-burning scavenging under scavenge trunk of further Improvement and perfection, it is characterized in that, described has the valve gear with crankshaft-synchronous, bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder is formed, the dual-side of a bit of opening of described C type circle to the central angle in the bent axle center of circle at 79-97 degree.

The two-cycle gasoline engine of the described plus-pressure crank valve control pre-burning scavenging under scavenge trunk of further Improvement and perfection, it is characterized in that, described has the valve gear with crankshaft-synchronous, bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder is formed, described bent axle (57) is provided with C type edge (57a), and it matches with the described a bit of opening adding the C type circle (56a) of crank valve (56).

The two-cycle gasoline engine of the described plus-pressure crank valve control pre-burning scavenging under scavenge trunk of further Improvement and perfection, it is characterized in that, described has the valve gear with crankshaft-synchronous, bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder is formed, described bent axle (57) is provided with C type edge (57a), and it is corresponding with the described a bit of opening adding the C type circle (56a) of crank valve (56) and by a positioning hole, or a locating stud, or setting sleeve realizes coordinating, and fix with three screws.

The two-cycle gasoline engine of the described plus-pressure crank valve control pre-burning scavenging under scavenge trunk of further Improvement and perfection, it is characterized in that, described has the valve gear with crankshaft-synchronous, it is the C type circle (56a) adding crank valve (56) on bent axle (57), the C type circle of described crank valve (56) has the dual-side of a bit of opening to be set to the wedge circle (56b) at oblique angle, the angle of the medial axis of its every limit bent axle of oblique angle that the dual-side of a bit of opening of the wedge circle (56b) of the C type circle of described crank valve (56) is provided with is at 5-27.5 degree, when a bit of opening of the wedge circle (56b) of described C type circle dual-side have the side at oblique angle with crankshaft rotating, when the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder, just form shear flow and the slow effect of falling sudden change and impacting.

The two-cycle gasoline engine of the described plus-pressure crank valve control pre-burning scavenging under scavenge trunk of further Improvement and perfection, it is characterized in that, described has the valve gear with crankshaft-synchronous, it is the C type circle (56a) adding crank valve (56) on bent axle (57), the C type circle of described crank valve (56) has the dual-side of a bit of opening to be set to the pressure coil (56f) at oblique angle, when the logarithmic spiral side of the dual-side of a bit of opening of described pressure coil is with crankshaft rotating, affect the effect of air-flow and buffering with regard to the logarithmic spiral of mineralization pressure angle properties equivalent everywhere when the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder.

The two-cycle gasoline engine that technological innovation adds the scavenging of filter screen valve control pre-burning in scavenge trunk is characterized in that, the innovation is near piston top dead center, before ignition of mixed gas above piston compressed in cylinder, due to piston train of dress portion moving, the preparation intakeport in latch-release cylinder is opened, in the crankcase below piston, suck the mixed gas of fuel and air, again due to the pressure of the combustion gas above the piston of igniting generation, piston moves from upper dead center to lower dead centre direction and closes intakeport simultaneously, mixed gas in compression crankcase, on the piston of bottom dead center-nearby, make combustion gas in cylinder to while outdoor gas is discharged from opening and closing relief opening, by the scavenge air belt that crankcase is connected with cylinder, on piston, in latch-release cylinder, by preparation scavenging port mixed gas imported to the two cycle engine in cylinder from crankcase, the design has the valve gear with crankshaft-synchronous, and this valve is from crankcase to cylinder scavenging mouth, and the crankcase side of scavenge air belt is configured to normally closed, when the valve-closing of the crankcase side of scavenge air belt, mixed gas in scavenge air belt makes it by the flame of combustion gas burning of igniting, after HC reduces again from crankcase to scavenging port, the crankcase side of scavenge air belt makes it opening, while the burning mixed gas of scavenge air belt is sent, mixed gas in crankcase closed relief opening before relief opening is discharged, the two cycle engine that Here it is makes the discharge of HC significantly reduce, solve in former structure, with the valve of above-mentioned bent axle same period because not being designed, the words that after the flame extinction of combustion gas, scavenging port is not also opened, the flame of combustion gas can make the mixed gas ignition in scavenge air belt and crankcase, mixed gas cannot be supplied in cylinder, the opening of relief opening will make the opening of scavenging port cross early stage unlatching, relief opening in cylinder and scavenging port at the same time opening time, unblended mixture in crankcase and in scavenge air belt enters in cylinder from relief opening, so a part for mixed gas is discharged from relief opening under unburned state, become the problem that the mixed gas (i.e. HC) in Exhaust Gas increases, the present invention is outside described intakeport relief opening scavenging port, after crankcase scavenging, opening and closing valve has been added in the crankcase side of scavenge air belt, mixed gas in scavenge air belt is ignited and is burnt in the flame of combustion gas, and be that the valve of synchronizing cycle can be truncated according to bent axle in scavenge air belt and crankcase, so the mixed gas in crankcase can not burn, combustion gas simultaneously in scavenge air belt with the valve openings in crankshaft-synchronous cycle in, mixed gas in crankcase can be extruded out in cylinder, initial stage relief opening and scavenging port while during opening, combustion gas in scavenge air belt are fed in cylinder, can not be adulterated in the exhaust gas be discharged from relief opening to outside HC, when relief opening is about to close, in spent mixed gas in scavenge air belt, the unblended mixture continued in crankcase is fed in cylinder, so the HC amount of adulterating in exhaust gas can control to reduce, described has the valve gear with crankshaft-synchronous, it is the C type circle (56a) adding crank valve (56) on bent axle (57), the C type circle of described crank valve (56) has the dual-side of a bit of opening to be set to the wedge circle (56b) at oblique angle, when its a bit of opening dual-side have the side at oblique angle with crankshaft rotating, just form the effect sheared and reduce sudden change and impact when the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder, the described two-cycle gasoline engine adding the scavenging of noise control filter screen valve control pre-burning in scavenge trunk, be further characterized in that, described has the valve gear with crankshaft-synchronous, it is the pressure coil (56f) that the dual-side of a bit of opening of the C type circle (56a) adding crank valve (56) on bent axle (57) is provided with oblique angle, when the logarithmic spiral side of the dual-side of a bit of opening of described pressure coil is with crankshaft rotating, affect the effect of air-flow and buffering with regard to the logarithmic spiral of mineralization pressure angle properties equivalent everywhere when the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder, the wedge (11b) of the filter screen (58) in scavenge trunk is located at described technique butt strip (55) side, catalyst volume (59) of reduction of discharging is provided with in the scavenge trunk on described technique butt strip (55) side, its platiniferous rhodium indium, catalyst effect and noise control is had to filter regulating and controlling effect to flowing through gas, there is regular hour difference and isolate and noise elimination regulating action, slow down the discharge of HC to the relief opening of scavenge trunk, thus be formed in scavenge trunk the engine adding catalyst, the described two-cycle gasoline engine adding the scavenging of noise control filter screen valve control pre-burning in scavenge trunk that further improvement is perfect, it is characterized in that, described has the valve gear with crankshaft-synchronous, the oral area that bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the connection crankcase of the scavenge trunk of latch-release cylinder is formed, and the gap (56 δ) between the oral area of the connection crankcase of the scavenge trunk of the cylinder of the external diameter distance motor 1E39F of the outer circle of described C type circle is at 0.02-0.09 millimeter, the described two-cycle gasoline engine adding the scavenging of noise control filter screen valve control pre-burning in scavenge trunk, it is characterized in that, described has the valve gear with crankshaft-synchronous, bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder is formed, the dual-side of a bit of opening of described C type circle to the central angle in the bent axle center of circle at 82-95 degree.

The described two-cycle gasoline engine adding the scavenging of noise control filter screen valve control pre-burning in scavenge trunk of further Improvement and perfection, it is characterized in that, described has the valve gear with crankshaft-synchronous, it is the C type circle (56a) adding crank valve (56) on bent axle (57), the C type circle of described crank valve (56) has the dual-side of a bit of opening to be set to the wedge circle (56b) at oblique angle, when a bit of opening of described C type circle dual-side have the side at oblique angle with crankshaft rotating, just form shear flow when the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder and reduce the effect suddenling change and impact.The angle of the medial axis of its every limit bent axle of oblique angle that the dual-side of a bit of opening of wedge circle (56b) is provided with is at 5-27.5 degree; Be further characterized in that, described has the valve gear with crankshaft-synchronous, it is the C type circle (56a) adding crank valve (56) on bent axle (57), the C type circle of described crank valve (56) has the dual-side of a bit of opening to be set to the pressure coil (56f) at oblique angle, when the logarithmic spiral side of the dual-side of a bit of opening of described pressure coil is with crankshaft rotating, affect the effect of air-flow and buffering with regard to the logarithmic spiral of mineralization pressure angle properties equivalent everywhere when the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder; Be further characterized in that, filter screen (58) in described scavenge trunk is located at described technique butt strip (55) side, filter screen in described scavenge trunk is formed through knitting device by many wire, has filtration regulating and controlling effect to breathing between gas and crankcase in cylinder; The wedge (11b) of the noise control filter screen in scavenge trunk is located at described technique butt strip (55) side, the ingenious discharge of HC to the relief opening of scavenge trunk slowing down crankcase virgin gas.

Usefulness: the present invention relates to energy-saving and emission-reduction, it is the two-cycle gasoline engine adding the scavenging of catalyst filter screen valve control pre-burning in scavenge trunk, if with the valve gear of crankshaft-synchronous, be provided with the pressure coil (56f) of logarithm, the logarithmic spiral of mineralization pressure angle properties equivalent everywhere affects the effect of air-flow and buffering; The wedge (11b) of the noise control filter screen in scavenge trunk is located at described technique butt strip (55) side, described wedge (11b) is multiple hollow six prismatics, top there is aperture, the advanced wedge compression of air-flow, then expand from the effusion of wedge aperture; Catalyst volume (59) of reduction of discharging is provided with in the scavenge trunk on technique butt strip (55) side, its platiniferous rhodium indium, catalyst effect and noise control is had to filter regulating and controlling effect to flowing through gas, the regular hour is had to postpone difference and isolation and noise elimination effect and obstruct regulating action, the ingenious discharge slowing down pneumatic noise and HC.

Claims

1. in scavenge trunk, add the two-cycle gasoline engine of catalyst filter screen valve control pre-burning scavenging, containing left block, right block, piston, combustion chamber, spark plug, cylinder body, cylinder cap, cylinder barrel, connecting rod, crankcase, lubricating oil pump, lubricating system, fuel system, ignition system, cooling system, described cylinder body (44) is centrally provided with the scavenging road junction (45) that left and right has symmetrically on the cylinder chamber of the dress piston of two stroke engine, namely on the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44), respectively each ground, left and right is provided with wedge turbulent flow time and alters sheet (46) symmetrically, the skirt section of described piston is equipped with two auxiliary shirt rims (37), described two auxiliary shirt rim (37) is on the basis of former two shirt rims of the bilateral that there is not connecting rod pin-and-hole that retains original piston, and the bilateral that has connecting rod pin-and-hole in the skirt section of piston (31) is following, an auxiliary shirt rim is added on every one side, so be referred to as two auxiliary shirt rims (37), described two auxiliary shirt rim, it is containing base (38), lower fillet (39), side (40), upper fillet (41), the concave arc limit (42) on base, the through hole (43) of piston and two auxiliary shirt rims, the logarithm line of its piston skirt logarithmic differentiation equation of described piston also claims that isogonal one section is located at shirt rim, the limit of the part of its shirt rim is a section that pressure angle approaches the equal logatithmic spiral by logarithmic differentiation equation, utilize the feature that the logatithmic spiral tool pressure angle of higher mathematics is equal, wedge turbulent flow is returned and alter one section that blade has logatithmic spiral, then gush mixed air-flow thereon just easily steadily, block waste gas and return in order to utilize equal pressure angle to produce turbulent flow at scavenging road junction place and alter to reduce discharge, described two auxiliary shirt rim or with aluminium alloy, or with composite to reduce cylinder prepareding gap, use CNC machining center, tungsten copper electrode first be made, with the auxiliary molding of the lathe that has three-dimensional rotation head, then produce in batches with die casting machine, machined and plating again, described left block and right block are respectively provided with and change the little two auxiliary blow vent narrowing, described two auxiliary blow vent is located at left block and is just called left two auxiliary blow vent (51b), described two auxiliary blow vent is located at right block and is just called right two auxiliary blow vent (52b), described left block and right block are to assemble Face to face, and with being connected above of the scavenging air belt of cylinder body, the right side pair auxiliary blow vents (52b) that the two auxiliary blow vents (51b) in a left side that two scavenging air belts of described cylinder body are provided with described left block (51) respectively and described right block (52) are provided with are connected, it is the two auxiliary blow vent of the left and right block that narrows, when the two auxiliary shirt rim (37) being equipped with when described two auxiliary blow vent and the skirt section of described piston that runs to piston lower approaches, just be beneficial to and narrow local volumetric, strengthen local air flow pressure and flow velocity and additional turbulence is returned and altered and fall row, the wedge turbulent flow that upper each each ground, left and right symmetrically, scavenging road junction (45) of the symmetrical left and right each of the described two auxiliary blow vent that narrows left and right block and described cylinder body (44) is provided with returns alters both adapteds of sheet (46), both adapteds of two auxiliary shirt rim (37) that the skirt section of the described two auxiliary blow vent that narrows left and right block and described piston is equipped with, the described two auxiliary blow vent that narrows left and right block,The wedge turbulent flow that the upper each left and right symmetrically, scavenging road junction (45) having with the symmetrical left and right of described cylinder body (44) is provided with having returns alters sheet (46), and with two auxiliary shirt rim (37) three's adapted that the skirt section of described piston is equipped with, have the row's of falling effect, the rear wall (51f) of the two auxiliary blow vents (51b) in a left side that the left block (51) of the described two auxiliary blow vents that narrow left and right block is provided with is thicker, and thinnest part is no less than 1.4mm, and has the oblique angle that is greater than 9 degree, the left block (51) of the described two auxiliary blow vents that narrow left and right block is provided with multiple reinforcement arm pawls (51e), and the square-section of each reinforcement arm pawl is thicker, thinnest part is greater than 1.4mm, described in narrow left and right block the back side of the two auxiliary blow vents (51b) in a left side that are provided with of the left block (51) of two auxiliary blow vents be provided with long reinforcement (51c), the back side of the pit of the two auxiliary blow vents (51b) in a left side that the left block (51) of the described two auxiliary blow vents that narrow left and right block is provided with is provided with short reinforcement (51d), the two auxiliary blow vents (52b) in the right side that the right block (52) of the described two auxiliary blow vents that narrow left and right block is provided with are pits, the length, width and height of its pit are not identical with the two auxiliary blow vents (51b) in a left side for described left block (51), to gain in strength, resist and narrow two larger local pressures caused by auxiliary blow vent, the two auxiliary blow vents (52b) in the right side that the right block (52) of the described two auxiliary blow vents that narrow left and right block is provided with are pits, the two auxiliary blow vents (51b) in a left side that length, width and height and the described left block (51) of its pit is provided with are not identical, and the length, width and height that are less than at small-sized single cylinder two-stroke cylinder diameter on the engine of 49 millimeters are the cuboidal pit with tapering that is that wait and that have concentric reducer, on the cylinder chamber of the dress piston of the cylinder body (44) of two-cycle gasoline engine, be centrally provided with the scavenging road junction (45) that left and right has symmetrically, on the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44), respectively each ground, left and right is provided with scavenging air belt partition wall (53) symmetrically, thus described scavenging road junction (45) is divided into two, and then form substantial two-cycle gasoline engine list scavenging air belt and change into the improvement of the many scavenging air belts of two-cycle gasoline engine, return and alter less in order to the many and waste gas of retardance thus reduce discharge, described scavenging air belt partition wall (53) is by the foot of a wall portion (53a), wall end (53d), front metope (53c), rear metope (53b) forms, front metope (53c) and the rear metope (53b) of described scavenging air belt partition wall (53) extend along the piston movement direction of the cylinder chamber of the dress piston of described cylinder body (44), the foot of a wall portion (53a) of described scavenging air belt partition wall (53) is connected with the inner wall section at cylinder body (44) at described scavenging road junction (45), wall end (53d) and the piston of described scavenging air belt partition wall (53) slidingly contact, the foot of a wall portion (53a) of the scavenging air belt partition wall (53) that the upper each each ground, left and right symmetrically, scavenging road junction (45) having in the symmetrical left and right of described cylinder body (44) is provided with is located at the positive middle part of scavenging air belt thus described scavenging road junction (45) is divided into and is divided into two,Or the foot of a wall portion (53a) that on the scavenging road junction (45) having in the symmetrical left and right of described cylinder body (44), respectively each two ground, left and right are provided with scavenging air belt partition wall (53) is symmetrically divided into one dividing into three described scavenging road junction (45); Scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44) is provided with the foot of a wall portion (53a) the extending radially out along piston from being connected in the inner wall section of cylinder body (44) with described scavenging road junction (45); Scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44) is provided with the foot of a wall portion (53a) radially the stretching out angularly along piston from being connected in the inner wall section of cylinder body (44) with described scavenging road junction (45); Scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44) is provided with is from stretching out along the angle that is not more than 40 degree that radially has with piston in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected with described scavenging road junction (45); Scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44) is provided with from described scavenging road junction (45) in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along with radially the stretching out by 22.5 degree angularly of piston; The front metope (53c) of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44) is provided with and rear metope (53b) along from described scavenging road junction (45) in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along with radially the stretching out angularly mutually of piston, the angle that described front metope (53c) and rear metope (53b) mutual are 6 degree; The front metope (53c) of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44) is provided with and rear metope (53b) along from described scavenging road junction (45) in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along with the extending radially out of piston, described front metope (53c) and rear metope (53b) are the arc-shaped curved surfaces of involute; The front metope (53c) of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the scavenging road junction (45) that has in the symmetrical left and right of described cylinder body (44) is provided with and rear metope (53b) along from described scavenging road junction (45) in the foot of a wall portion (53a) that the inner wall section of cylinder body (44) is connected along with the extending radially out of piston, described front metope (53c) and rear metope (53b) are that the equiangular spiral that pressure angle is equal everywhere is also called logatithmic spiral face;The top of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, scavenging road junction (45) that the two-cycle gasoline engine of the described gas stratiform scavenging that makes precombustion in scavenge trunk has in the symmetrical left and right of described cylinder body (44) is provided with is provided with Fourier function breach (53j), and gibbs overshoot is had to approach rectangle at described Fourier function breach (53j) with the tie point in described the foot of a wall portion (53a), described tool increases on its scavenging road junction (45) having in the symmetrical left and right of described cylinder body (44) of the right case of compression ratio and the small-sized single cylinder two stroke engine of function Fourier sheet wall and is provided with tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54), described tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) is the side from scavenging road junction (45) and a stifled high-wall that circumferencial direction in the piston cylinder along cylinder body (44) stretches out, it highly exceedes the half (degree of depth is the axis direction along piston) of scavenging road junction (45) degree of depth, its pit of blow vent of right case that increases compression ratio at described tool of the described two-cycle gasoline engine that adds the scavenging of crank valve control pre-burning gas under scavenge trunk varies in size, and the pit of the blow vent (51b) of described left box body is containing left prism (51g), left straight sided (51y) and left broad side surface (51h), the pit of the blow vent (52b) of described right case is containing right prism (52g), right straight sided (52y) and right broad side surface (52h), described left prism (51g) is 59-60 degree to the left with the angle of Ji Gang center, the composition surface split surface of left box body, described left straight sided (51y) is 89-90 degree with the angle of Ji Gang center, the composition surface split surface of left box body, described right prism (51g) is 60-61 degree to the right with the angle of Ji Gang center, the composition surface split surface of right case, described right straight sided (51y) is 90-91 degree with the angle of Ji Gang center, the composition surface split surface of right case, described left broad side surface (51h) is arcwall face, and described right broad side surface (52h) is also arcwall face, or the arcwall face of one section of composition of logatithmic spiral, the described high-wall of the tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) that the scavenging road junction (45) that the symmetrical left and right of described cylinder body (44) has is provided with is the side from scavenging road junction (45) and a stifled high-wall that circumferencial direction in the piston cylinder along cylinder body (44) stretches out, and it is highly the 80%-90% of scavenging road junction (45) degree of depth (highly and the degree of depth are all the axis directions along piston), the described side from scavenging road junction (45) of the tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) that the scavenging road junction (45) that the symmetrical left and right of described cylinder body (44) has is provided with and the top of the stifled high-wall that circumferencial direction in the piston cylinder along cylinder body (44) stretches out is provided with transition flex point (54j), what its turn round shape and its that has at least one to approach 90 degree was approximately that gibbs overshoot convergence ripple i.e. imitative fourier series ground gibbs overshoot phenomenon draws approaches rectangle transition ripple gradually,The described side from scavenging road junction (45) of the tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) that the scavenging road junction (45) that the symmetrical left and right of described cylinder body (44) has is provided with and the bottom of the stifled high-wall that circumferencial direction in the piston cylinder along cylinder body (44) stretches out is provided with multiple fluctuating convex-concaves (54k), the described side from scavenging road junction (45) of the tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) that the scavenging road junction (45) that the symmetrical left and right of described cylinder body (44) has is provided with and the bottom of the stifled high-wall that circumferencial direction in the piston cylinder along cylinder body (44) stretches out is provided with multiple fluctuating convex-concaves (54k), the described side from scavenging road junction (45) of the tool periodic function gibbs overshoot convergence ripple Fourier sheet wall (54) that the scavenging road junction (45) that the symmetrical left and right of described cylinder body (44) has is provided with and the bottom of the stifled high-wall that circumferencial direction in the piston cylinder along cylinder body (44) stretches out be provided with multiple fluctuating convex-concaves (54k) its be approximately the decay gradually that imitative fourier series is drawn frequency spectrum multiple from diminish greatly from thin change close spike, or the Fourier function breach (53j) that is provided with of the top of the scavenging air belt partition wall (53) that is provided with of upper each each ground, left and right symmetrically, the described scavenging road junction (45) having in the symmetrical left and right of cylinder body (44) is the blow vent containing being approximately the sinusoidal odd function of Fourier that imitative fourier series draws and approximate wave as only having single circular frequency, the Fourier function breach (53j) that the top of the scavenging air belt partition wall (53) that upper each each ground, left and right symmetrically, the described scavenging road junction (45) having in the symmetrical left and right of cylinder body (44) is provided with is provided with is the blow vent of S shape, the described piston (31) of the described two-cycle gasoline engine that adds the scavenging of crank valve control pre-burning gas under scavenge trunk is provided with each one gas storage pit (31a) around, it slightly resembles a pear in shape described gas storage pit, there is concentric reducer, less near piston pin axle bed place, it is larger away from piston pin axle bed place, the crosscut hatching (31b) of described gas storage pit is curve, the thickness of the section of the crosscut hatching (31b) of described gas storage pit is greater than 2mm, the curve of the crosscut hatching (31b) of described gas storage pit is the equipotentiality streamline of family of parabolas, one section of its streamline is the quadratic function of the family of parabolas of the analytical function of the harmonic function that meets Laplace's equation of the flow function of imitating Method of Mathematical Physics, the described two-cycle gasoline engine that adds the scavenging of crank valve control pre-burning gas under scavenge trunk, the cylinder body (44) of the two-cycle gasoline engine described in it is containing blow vent (44a), the first scavenging port (44d) that enters air scoop (44c), the each symmetry in left and right that enters gas port (44b), the each symmetry in left and right, second scavenging port (44f) of the each symmetry in left and right, second scavenging port (44f) of the each symmetry of the first scavenging port (44d) and described left and right of the each symmetry in described left and right is located at scavenging road junctionThe interval of described the first scavenging port (44d) and described the second scavenging port (44f) and top are provided with two scavenging air belts along piston movement direction be the envelope high-wall (44e) of sealing by piston cylinder, the inner side of described envelope high-wall (44e) is circular arc by piston cylinder, the outside of described envelope high-wall (44e) does not namely depend on piston cylinder to lean on the side of scavenging air belt to be shaped form, and with technique butt strip (55) coexistence in the outer portion at the scavenging road junction of cylinder body, described technique butt strip (55) is containing interval stupefied (55g), interval breach (55e), the first scavenging side wall (55d), the second scavenging side wall (55d), three mounting hole site and special-shaped packing, and be formed with the scavenging road junction of cavity, thus become the two-cycle gasoline engine of the gas stratiform scavenging that makes precombustion in scavenge trunk, the stupefied upper top at the interval stupefied (55g) of described technique butt strip (55) be curve so that and the outside of described envelope high-wall (44e) namely depend on piston cylinder to lean on the shaped form of side of scavenging air belt coexist and scavenging air belt is divided into two, the stupefied upper top at the interval stupefied (55g) of described technique butt strip (55) be family of parabolas quadratic function curve so that and the outside of described envelope high-wall (44e) by the quadratic function curve shape coexistence of the equipotentiality streamline of the family of parabolas of the side of scavenging air belt, the interval breach (55e) of described technique butt strip (55) and the outside of described envelope high-wall (44e) coexist by the shaped form between the first scavenging port (44d) and the second scavenging port (44f) of the side of scavenging air belt and scavenging air belt are divided into two, the first scavenging side wall (55d) of described technique butt strip (55) forms the first scavenging road junction with the bottom coexistence of first scavenging port (44d) of described cylinder body, the second scavenging side wall (55d) of described technique butt strip (55) forms the second scavenging road junction with the bottom coexistence of second scavenging port (44f) of described cylinder body, the upper top of the first scavenging side wall (55d) of described technique butt strip (55) be family of parabolas quadratic function curve so that and the outside of described envelope high-wall (44e) form the first scavenging road junction by the quadratic function curve shape coexistence of the equipotentiality streamline of the family of parabolas of the side of scavenging air belt, the upper top of the second scavenging side wall (55d) of described technique butt strip (55) be family of parabolas quadratic function curve so that and the outside of described envelope high-wall (44e) form the second scavenging road junction by the quadratic function curve shape coexistence of the equipotentiality streamline of the family of parabolas of the side of scavenging air belt, described cylinder body (44) is provided with multiple reinforcement heat radiations (44x, 44v) in flakes between its multiple fin, described cylinder body (44) is provided with perforation louvre (44j) in the cross-sectional direction of exhaust outlet, and the cross-sectional direction at the air inlet of described cylinder body (44) is also provided with straight-through louvre (44k), the described two-cycle gasoline engine that adds the scavenging of catalyst filter screen valve control pre-burning in scavenge trunk is characterized in that, it is near piston top dead center, before ignition of mixed gas in cylinder above compressed piston, because moving the preparation air entry making in latch-release cylinder in piston train of dress portion opens, in the crankcase below piston, suck the gaseous mixture of fuel and air,The pressure of burning gases above the piston that produces due to igniting again, piston moves and closes simultaneously air entry from top dead-centre to bottom dead centre direction, gaseous mixture in compression crankcase, on the piston of bottom dead center-nearby, when the burning gases that make in cylinder from opening and closing exhaust outlet are discharged to outdoor gas, the scavenge air belt being connected with cylinder by crankcase imports to the two cycle engine in cylinder by preparation scavenging port in latch-release cylinder on piston from crankcase by gaseous mixture, the design has the valve gear with crankshaft-synchronous, and this valve is from crankcase to cylinder scavenging mouth, and the crankcase side of scavenge air belt is configured to normally closed, in the valve-closing of the crankcase side of scavenge air belt, gaseous mixture in scavenge air belt is by the burning that makes it to ignite of the flame of combustion gas, HC reduces later again from crankcase to scavenging port, the crankcase side of scavenge air belt makes it opening, when the burning gaseous mixture of scavenge air belt is sent, gaseous mixture in crankcase was closed exhaust outlet before exhaust outlet is discharged, the two cycle engine that Here it is makes the discharge of HC significantly reduce, solve in former structure, with the valve of above-mentioned bent axle same period because not being designed, the words also do not opened of scavenging port after the flame extinction of burning gases, the flame of burning gases can make the gaseous mixture ignition in scavenge air belt and crankcase, gaseous mixture cannot be supplied with in cylinder, the opening of exhaust outlet will make the opening of scavenging port cross early stage unlatching, exhaust outlet in cylinder and scavenging port are at the same time during opening, unblended mixture in crankcase and in scavenge air belt is proceeded from exhaust outlet in cylinder, so a part for gaseous mixture is discharged from exhaust outlet under unburned state, become the problem that the gaseous mixture (i.e. HC) in Exhaust Gas increases, the present invention is outside described air entry exhaust outlet scavenging port, after crankcase scavenging, crankcase side at scavenge air belt has been appended opening and closing valve, gaseous mixture in scavenge air belt is ignited and is burnt in the flame of combustion gas, and in scavenge air belt and crankcase, be that the valve of the synchronizing cycle according to bent axle can be truncated, so the gaseous mixture in crankcase can not burn, combustion gas in scavenge air belt is in the valve openings with the crankshaft-synchronous cycle simultaneously, gaseous mixture in crankcase can be extruded out in cylinder, at exhaust outlet and scavenging port initial stage during opening simultaneously, burning gases in scavenge air belt are fed in cylinder, HC can not be adulterated in the exhaust gas that is discharged from exhaust outlet to outside, when exhaust outlet is about to close, unblended mixture in spent gaseous mixture in scavenge air belt in lasting crankcase is fed in cylinder, so the HC amount of adulterating in exhaust gas can control minimizing, the described valve gear that has with crankshaft-synchronous, it is the C type circle (56a) that adds crank valve (56) on bent axle (57), the C type circle of described crank valve (56) has the dual-side of a bit of opening to be set to the wedge circle (56b) at oblique angle, when the side that has oblique angle of the dual-side of its a bit of opening is with crankshaft rotating, during the oral area of the connection crankcase in the scavenge trunk of latch-release cylinder, just form the effect of shearing and reducing sudden change and impact, the described two-cycle gasoline engine that adds the scavenging of catalyst filter screen valve control pre-burning in scavenge trunk, is further characterized in that, the described valve gear that has with crankshaft-synchronous,It is the pressure coil (56f) that the dual-side of a bit of opening of the C type circle (56a) that adds crank valve (56) on bent axle (57) is provided with logarithm, when the logatithmic spiral side of the dual-side of a bit of opening of described pressure coil is with crankshaft rotating, during the oral area of the connection crankcase in the scavenge trunk of latch-release cylinder with regard to mineralization pressure angle everywhere the logatithmic spiral of properties equivalent affect the effect of air-flow and buffering; The wedge (11b) of the noise control filter screen in scavenge trunk is located at described technique butt strip (55) side; Catalyst volume (59) its platiniferous rhodium indium of reduction of discharging is provided with in the scavenge trunk on described technique butt strip (55) side, catalyst effect and noise control is had to filter regulating and controlling effect to flowing through gas, there are regular hour difference and isolation and noise elimination regulating action, slow down the discharge of the exhaust outlet of HC to scavenge trunk, thus be formed in the engine that adds catalyst in scavenge trunk.

2. the two-cycle gasoline engine adding the scavenging of catalyst filter screen valve control pre-burning in scavenge trunk according to claim 1, it is characterized in that, described has the valve gear with crankshaft-synchronous, the oral area that bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the connection crankcase of the scavenge trunk of latch-release cylinder is formed, and the gap (56 δ) between the oral area of the connection crankcase of the scavenge trunk of the cylinder of the external diameter distance motor 1E39F of the outer circle of described C type circle is at 0.02-0.09 millimeter.

3. the two-cycle gasoline engine adding the scavenging of catalyst filter screen valve control pre-burning in scavenge trunk according to claim 1, it is characterized in that, described has the valve gear with crankshaft-synchronous, bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder is formed, the dual-side of a bit of opening of described C type circle to the central angle in the bent axle center of circle at 82-95 degree.

4. the two-cycle gasoline engine adding the scavenging of catalyst filter screen valve control pre-burning in scavenge trunk according to claim 1, it is characterized in that, described has the valve gear with crankshaft-synchronous, bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder is formed, described bent axle (57) is provided with C type edge (57a), and it matches with the described a bit of opening adding the C type circle (56a) of crank valve (56).

5. the two-cycle gasoline engine adding the scavenging of catalyst filter screen valve control pre-burning in scavenge trunk according to claim 1, it is characterized in that, described has the valve gear with crankshaft-synchronous, bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder is formed, described bent axle (57) is provided with C type edge (57a), and it is corresponding with the described a bit of opening adding the C type circle (56a) of crank valve (56) and realizes coordinating by a positioning hole.

6. the two-cycle gasoline engine adding the scavenging of catalyst filter screen valve control pre-burning in scavenge trunk according to claim 1, it is characterized in that, described has the valve gear with crankshaft-synchronous, bent axle (57) adds the rotation of C type circle (56a) of crank valve (56) and the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder is formed, described bent axle (57) is provided with C type edge (57a), and it is corresponding with the described a bit of opening adding the C type circle (56a) of crank valve (56) and by a locating stud, or a setting sleeve realizes coordinating, and fix with three screws.

7. the two-cycle gasoline engine adding the scavenging of catalyst filter screen valve control pre-burning in scavenge trunk according to claim 1, it is characterized in that, described has the valve gear with crankshaft-synchronous, it is the C type circle (56a) adding crank valve (56) on bent axle (57), the C type circle of described crank valve (56) has the dual-side of a bit of opening to be set to the pressure coil (56f) at oblique angle, when the logarithmic spiral side of the dual-side of a bit of opening of described pressure coil is with crankshaft rotating, affect the effect of air-flow and buffering with regard to the logarithmic spiral of mineralization pressure angle properties equivalent everywhere when the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder.

8. the two-cycle gasoline engine adding the scavenging of catalyst filter screen valve control pre-burning in scavenge trunk according to claim 1, it is characterized in that, described has the valve gear with crankshaft-synchronous, it is the C type circle (56a) adding crank valve (56) on bent axle (57), the C type circle of described crank valve (56) has the dual-side of a bit of opening to be set to the wedge circle (56b) at oblique angle, when a bit of opening of described C type circle dual-side have the side at oblique angle with crankshaft rotating, just form shear flow when the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder and reduce the effect suddenling change and impact.

9. the two-cycle gasoline engine adding the scavenging of catalyst filter screen valve control pre-burning in scavenge trunk according to claim 1, it is characterized in that, described has the valve gear with crankshaft-synchronous, it is the C type circle (56a) adding crank valve (56) on bent axle (57), the C type circle of described crank valve (56) has the dual-side of a bit of opening to be set to the wedge circle (56b) at oblique angle, the angle of the medial axis of its every limit bent axle of oblique angle that the dual-side of a bit of opening of the wedge circle (56b) of the C type circle of described crank valve (56) is provided with is at 5-27.5 degree, when a bit of opening of the wedge circle (56b) of described C type circle dual-side have the side at oblique angle with crankshaft rotating, true when the oral area of the connection crankcase of the scavenge trunk of latch-release cylinder, just form shear flow and the slow effect of falling sudden change and impacting.

10. the two-cycle gasoline engine adding the scavenging of catalyst filter screen valve control pre-burning in scavenge trunk according to claim 1, it is characterized in that, filter screen (58) in described scavenge trunk is located at described technique butt strip (55) side, filter screen in described scavenge trunk is formed through knitting device by many wire, has filtration regulating and controlling effect to breathing between gas and crankcase in cylinder; Noise control filter screen in scavenge trunk is provided with multiple wedge (11b), and described wedge is multiple hollow six prismatics, and there is aperture on top, the advanced wedge compression of air-flow, then expands from the effusion of wedge aperture, has noise control to filter regulation and control and noise elimination effect.