CN103061862A - Two-stroke gasoline engine with scavenging passage ports for emission reduction of logarithmic differentiation equation turbulent flow channeling pieces - Google Patents

Abstract

The invention relates to energy saving and emission reduction, in particular to a two-stroke gasoline engine with scavenging passage ports for emission reduction of logarithmic differentiation equation turbulent flow channeling pieces. In order to pursue scientific exploration, various spark plug improvements such as addition of inductive reactors to various fixed electrodes, externally indexed connector modification, addition of shell cooling fins and arrangement of movable micro-motion electrodes are put forward; collocation of combustion chambers including function wave combustion chambers and function wave combustion chambers with parabolic convex-concave match is further put forward; double auxiliary skirt rims are added on a piston skirt; and at the scavenging passage ports of a cylinder block, the two tapered wedge turbulent flow channeling pieces (46) are symmetrically arranged on the left and on the right of each scavenging passage port, each tapered wedge turbulent flow channeling piece (46) comprises a scavenging passage port body (47), a tapered wedge (48) communicated with the scavenging passage port body, a channeling gate (49) communicated with the scavenging passage port body and a turbulent flow shield (5) communicated with the scavenging passage port body, so that turbulent flow is beneficially generated at the scavenging passage ports to block channeling of waste gas, and emission is reduced. The emission reduction and standard reaching effects are achieved unexpectedly finally, and the two-stroke gasoline engine has the advantages that the two-stroke gasoline engine is beneficial to assistance in stable guiding, emission reduction, noise reduction, lubrication, cooling, reliable ignition and efficiency improvement.

Description

Logarithmic differentiation equation turbulent flow in scavenging road junction returns alters sheet and falls row's two and rush petrol engine

Technical field

The present invention relates to firing chamber and ignition mechanism in a kind of fuel-burning equipment, especially the firing chamber that function wave is arranged of the improvement of internal-combustion engine and with the basis of the collocation of the internal combustion engine ignition device that active receiving electrode and fine motion discharging electrode are arranged on, and add in the piston skirt on the petrolic basis of two auxiliary shirt rims reduction hydrocarbon emissions, logarithmic differentiation equation turbulent flow in further improved scavenging road junction returns alters sheet and falls row's two and rush petrol engine, belongs to the firing chamber of internal-combustion engine and the technical field of turbulent scavenging.

Background technique

Be used for ignition mechanism, the especially gasoline motor spark plug of fuel-burning equipment, be widely used in the high voltage pulse electric current is introduced into the firing chamber, make the mixed gas sparking of inspiration cylinder and light, and then diffusive combustion and break out work done.The outside joiner of existing spark plug and having between the spark cap of rubber jar has the loose loose phenomenon of pine sometimes.Resistance is made though be provided with glass-sealing agent in the inside of existing spark plug, and impedance is only arranged; If the induction reactance of adding and capacitive reactance form suitable RCL loop, then have the effect that more preferably suppresses radio interference.Multiple tracks umbrella rib on the insulator also can be improved to saw-tooth shaped cross section by semi-circular cross-section, better blocks rubber jar so that the creepage passage of more insulation reaches.The heat radiation of the metal shell of existing spark plug also can further improve.The electrode of existing spark plug is well imagined, has easily cokingly, easily ablates single-point arcing, the shortcoming of low temperature difficult point; If electrode is reformed for movable, when improvement is arranged.Moreover original firing chamber has multiple, does not but have out of this world; Except crossing advantage, deficiency is arranged; Wedge-section combustion chamber for example, its mixed gas undue concentration is at the spark plug place, and it is rough that operating mode seems; Bathtub section combustion chamber L and for example, the shape of its prolate makes the effect of squish poor, and 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 larger, and discharging is disadvantageous to HC.Bowl-in-piston chamber and for example, the hemispherical combustion chamber, fluffy shape firing chamber, and other type firing chambers, such as the auxiliary combustion chamber of turbulization, the dual ignition plug firing chamber, the firing chamber on plane, each has something to recommend him; But the human invention that aspires after perfection is endless, and piston also has very large potentiality to dig.The so-called best geometry of firing chamber and piston is no doubt important, but will reach and the ignition mechanism collocation with engine model is adaptive, and better effect is just arranged.Particularly two-stroke gasoline engine is poorer than the fuel economy of four-stroke gasoline engine, and the hydrocarbon emission in the tail gas often exceeds standard.Combustion chambers of internal combustion engines and piston reach the collocation with ignition mechanism, are hard nut to cracks that relates to energy-saving and emission-reduction.

Summary of the invention

In order to pursue the perfection of ignition mechanism, the improvement that the present invention proposes multiple spark plug is multiple fixed electrode for example, adds interior induction reactance, changes outer calibration joiner, adds the shell radiating fin, and particularly establishes movable and fine motion electrode, in order to improving operating mode, energy-saving and emission-reduction.The also endless Science Explorations in order to aspire after perfection, it is no doubt important that the present invention proposes the so-called best geometry of firing chamber, but to reach and the ignition mechanism collocation with engine model is adaptive, the theory that better effect is just arranged, the suggestion of method of the collocation of various combustion chambers of internal combustion engines and various ignition mechanisms is proposed, the function wave firing chamber also is provided and with the adaptive function wave firing chamber of Parabolic convex-concave, is beneficial to energy-saving and emission-reduction; Add again two auxiliary shirt rims in the piston skirt, unexpectedly have at last to reduce discharging up to standard one effect.

Below explain orally in detail in conjunction with multiple diagram with regard to the invention scheme of multiple progressively Improvement and perfection:

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

Equation and modeling method that the present invention solves the technological scheme that its technical problem takes are:

Adopt PRO/ENGINEER WILDFIRE mapping software, newly establish working directory, newly-built part, grass are painted 2 concentric circles.

Open variable cross section scanning (Var Sect Sweep) instruction, choose above 2 circles and be 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 (real number), can be with according to concrete operating mode assignment between 0.01-1, for example 0.3; C is also referred to as wave height.

Set up parameter (PARAMETER) 2:N integer (integer), can be with according to concrete operating mode choosing value between 2-100, for example 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 the following formula, i is the dimension figure sequence number; SIN=SINE, sine function; TRAJPAR, lopcus function.

Follow again, adopt rotation, merge, the instructions such as materialization, and with the piston piece assembling and merge, namely be modeled as the piston on function corrugated; Again on piston area with spark plug and and intake valve, convex-concave is made in the position that exhaust valve is corresponding; With the piston cylinder body of packing into, cylinder cap just is formed with the firing chamber of function wave.

With described equation input CNC machining center, with the punching block of CIMATRO or MASTCAM superzapping cast aluminium alloy, or use milling machine, planer and electric discharge machining again; When using electric discharge machining, with described equation input CNC machining center, then to make first the tungsten copper electrode; Again with the die casting machine batch production that cold pressing chamber or hot pressing chamber are arranged; Again machining.The piston multipurpose material is aluminum alloy ZL109, or AC8A.Such as racing car or military vehicle, piston is near the material of combustor surface or with highly heat-conductive material such as silver alloy under high-end condition; Perhaps use exotic material such as silver-colored tungsten-copper alloy, even with special highly heat-conductive material such as synthetic diamond.

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

Below state first the improvement of ignition mechanism, the improvement of stating subsequently internal-combustion engine namely has the firing chamber of function wave to reach and the matching method that the internal combustion engine ignition device of active receiving electrode and fine motion discharging electrode is arranged.

A kind of ignition mechanism for fuel-burning equipment especially has the internal combustion engine ignition device of active receiving electrode and fine motion discharging electrode, is used for from fine motion and easily igniting carbon deposition removal, burn-out proof and changeable electrodes core; And subsidiary gasoline motor spark plug is with interior induction reactance and outer calibration high pressure coupling piece, be used for anti-High-frequency Interference and the anti-spark plug of pegging graft and getting 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), insulator (3) with the multiple tracks umbrella rib in zigzag fashion cross section, the interior induction reactance of a threaded end (4) and the threaded the other end (4b) and inductance coil (15), shell (5) with radiating fin, S shape retaining washer (6), the glass-sealing agent (7) that contains resistance, embed steel core (8), discharging electrode bar (9) is subjected to electrode tie rod (10), discharge cartridge (11), be subjected to electrode tip (12), be subjected to 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, in order to assembling from fine motion and the changeable electrodes core cartridge (11) that namely discharges; The surrounding place side face of described discharge cartridge (11) is provided with side flabellum (11a), and the upper end of discharge cartridge (11) is provided with wedge (11b), and the lower end of discharge cartridge (11) is provided with screw thread or thread-shaped groove (11c).The feature of described side flabellum (11a) is that straight fan leaf or spiral wind flabellum are arranged, and has a slice at least, or multi-disc, particularly 8.The described electrode tie rod (10) that is subjected to will be linked to each other by electrode tip shell (13) with shell (5) with radiating fin, and the described electrode tie rod (10) that is subjected to has a slice at least, or 2, or multi-disc.The described inside of electrode tip shell (13) that is subjected to is provided with screw thread or thread-shaped groove and can lays the circlip groove that is subjected to electrode tip shell back-up ring (14).Discharge cartridge (11) consists of discharging gap with the basin shape by top and ring sidepiece of the inside that is subjected to electrode tip (12), and a plurality of wedge angles that cut out is arranged at the top and dig a plurality of ring thread-shaped grooves in week at the ring sidepiece.The feature of the wedge (11b) of described discharge cartridge (11) is to be provided with in the top the polygonal pyramid that digs out, criss-cross polygonal pyramid particularly, referring to Figure 43, Figure 44, Figure 45 and Figure 46, or 2 pyramid, or 3 more than the pyramid, the polygonal pyramid of the above polygonal star of 2 stars preferably, the edgetone effect of ion current is beneficial to light a fire, make spark plug contain end face and ring side more than in the original large basin shape gap, the part has increased the gap of polygonal pyramid especially, the position part that fiery karyomorphism is become is left wall, a buffer cells is arranged, can avoid being stuck near the impact of the residual gas of wall, simultaneously, wedge collision and the turbulence effect of mixed gas add discharge cartridge (11) and are subjected to the fine motion of electrode tip (12) and the effect of trembling, and the absolute quantity of the mixed gas in the gap is increased, the probability that catches fire also increases, in addition, wedge collision and turbulent flow also are conducive to repel the carbon deposit Molecular flow, reach the mixture that the part in the basin shape gap has liquid liquefaction to be inclined in the wedge, the opportunity that Arc Discharge is not only arranged, and have the cydariform of electric discharge machining discharge to discharge, thus its comprehensive effect improves the sparkover quality, and 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 to slot by equal calibration at 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 the degree value; For example, the number of degrees of certain spark plug are 6, and the number of then slotting is 6; The number of degrees of certain spark plug are 7, and the number of then slotting is 7.Although the number of degrees of the calorific value of general spark plug are divided into 5-13 by the difference of motor by the internal structure of spark plug, the larger just nearlyer cold mould of numerical value, the engine that is fit to high rotating speed high compression ratio uses; The less just near-thermal type more of numerical value, the engine that is fit to low compression ratio uses; But difficult appearance from spark plug is judged, or is easily obscured.The beneficial effect of slotting at the electric conductor of the joiner of spark plug has two, one, makes the selecting of the number of degrees of the calorific value of spark plug be difficult for obscuring, and the 2nd, make the joiner of the latch capitiform of original Dan Yuan make the latch effect better owing to fluting becomes claw type.The electric conductor of the fluting of described joiner (1) be inserted with rubber or plastic insulation shell spark cap with high pressure external connection electrically conductive socket that link to each other and in cap in.

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), such as Fig. 5, Fig. 6 and Fig. 9, shown in Figure 10, zigzag fashion in the outer part and the angle of axis are more slow, more easily insert in order to the socket of spark cap; And the angle of zigzag fashion in the inner part and axis is larger, is difficult for deviating from order to the socket of spark cap.Such as Fig. 5, Fig. 6 and Fig. 7, Fig. 8, shown in Figure 9, described groove depth is half of joiner overall length; Fixing hole (1b) is located at i.e. in the inner part the end of the end of not slotting, in order to knock fixing.The internal thread of described joiner (1d), such as Fig. 6, Figure 1 and Figure 2, link with a threaded end (4), and retaining washer (2) and with the insulator (3) of the multiple tracks umbrella rib in zigzag fashion cross section, and the interior induction reactance of a threaded end (4) and the threaded the other end (4b) and inductance coil (15); A threaded end (4) links to each other with inductance coil (15); Inductance coil (15) links to each other with the threaded the other end (4b); The glass-sealing agent (7) of the threaded the other end (4b) by containing resistance, with embedding steel core (8), discharging electrode bar (9) links to each other.Described (4), part (15), part (7), part (8), part (9) insulated body (3) particularly ceramic body surrounds, just mutually meeting coupling capacitive reactance, 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 discharge directly, or link to each other with discharge cartridge (11) that special special material is made.Be subjected to electrode tie rod (10) at least one or a plurality of, or participate in discharge directly, or link to each other with the electrode tip (12) that is subjected to that special special material is made, or link to each other with the electrode tip (12) that is subjected to that special special material is made through being subjected to electrode tip shell (13), and install additional and be subjected to electrode tip shell back-up ring (14).The feature of the insulator (3) of described multiple tracks umbrella rib with the zigzag fashion cross section is, the zigzag fashion of described zigzag fashion umbrella rib and the angle of axis are more slow, more easily wraps in order to rubber or the plastic insulation shell of spark cap; And the angle of zigzag fashion in the inner part and axis is larger, is difficult for deviating from order to rubber or the plastic insulation shell of spark cap.The zigzag fashion of described zigzag fashion umbrella rib has than original semicircular umbrella rib and more manys the creepage passage of insulation and can better block rubber jar.The in the inner part outside of an end of (being inner discharge side) of the insulator (3) of described multiple tracks umbrella rib with the zigzag fashion cross section is provided with the shell (5) with radiating fin, and S shape retaining washer (6).The described feature that is provided with the shell (5) with radiating fin is to be provided with radiating fin (5a), radiating fin (5b), and radiating fin (5c), particularly described radiating fin is hexagonal, or circular.The steel material at the position of putting 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, the material that originally will be cut away is in vain kept a part and makes radiating fin.Described radiating fin has one at least, or 2,3 or a plurality of.Radiating fin is that hexagonal benefit has two, one, be convenient to its on the hex wrench nut process with cutter, the 2nd, socket wrench can be inserted in deeper and more when being convenient to install.

As improving 1, the present invention improves very cranked electrode (16) of common single ordinary telegram 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) forms, and this three part equates with the spacing of discharging electrode, thereby consist of the discharging gap (20) that is subjected to electrode and discharging electrode, and than original front head, being conducive to the absolute quantity increase of the mixed air in the gap and the probability that catches fire increases, and this is another beneficial effect of the present invention.

As improving 2, the special modified electrode of the present invention is the electrode (121) that many sides and many foldings gap are arranged, such 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) forms, this three part equates with the spacing of discharging electrode, thereby consists of the discharging gap that is subjected to electrode and discharging electrode, and than original front head's characteristics, also be provided with especially a plurality of sharp notch (17), be beneficial to discharge; Each is linked to each other with being subjected to electrode (121) by electrode stem (10), is subjected to the middle part of electrode (121) to have many foldings gap (18), is conducive to open discharge channel.Kind electrode (121) also can be only with half in some firing chamber, to save material.

As improving 3, the special modified electrode of the present invention is the electrode (21) that many sides and many gaps are arranged, such as Figure 15 and Figure 16, Figure 17, shown in Figure 180, it is characterized in that not only having aforesaid by extension (16a), arc portion (16b), turn of bilge (16c) forms, this three part equates with the spacing of discharging electrode, thereby consists of the discharging gap that is subjected to electrode and discharging electrode, and than original front head's characteristics, also be provided with especially a plurality of sharp notch (17), be beneficial to discharge; Each is subjected to electrode stem and be connected as one by electrode; As shown in figure 18, it is characterized in that: the two ends of making discharging gap (20) at the middle part of the described electrode (21) that many sides and many gaps are arranged have lower outstanding (19), the bottom of described lower outstanding (19) is lower than the discharging electrode top, and its use is the front that has added sideflash.Particularly the described transverse features that the electrode (21) in many sides and many gaps arranged is a slice at least, or is more than two, for example three.Be preferably multi-disc, in order to forming grid sheet grid point battle array effect, the electricity fire is examined and the possibility of cydariform discharge thereby increase.As improving 4, described have the electrode (21) in many sides and many gaps or remove the single electrode stem that is subjected to, such as Figure 26, and Figure 27 and shown in Figure 28, it is characterized in that aforesaid feature is not only arranged, specialization is that the electrode (23) that singly is subjected to the many sides of having of electrode stem and many gaps is arranged.Its usefulness is material-saving, and easily forms little the trembling of grid sheet grating compartment and favourable carbon deposit and the favourable discharging gap of shrugging off forms discharge channel.

As improving 5, the special modified electrode of the present invention is that the round basin of side and the electrode (22) that acute angle star is dug at the middle part are arranged, such as Figure 19 and Figure 20, and Figure 21, Figure 22, Figure 23 and shown in Figure 24 is characterized in that: have the round basin of side and middle part to dig acute angle star.There is basin shape namely not only end face to be arranged but also the side is arranged, thereby added the front of sideflash; Acute angle star has been dug at its middle part, or a star, or two stars, or a plurality of 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 is acute angle particularly, rather than right angle or obtuse angle.

Though silkworm in spring to dead silk side to the greatest extent, is had no limits yet improve to improve.Although screw thread or the mutually movable assembling of thread-shaped groove that electrode (12) and electrode shell (13) are provided with by the described inside that is subjected to electrode tip shell (13), oligodynamics are arranged, and by blocked by electrode tip shell back-up ring (14), can change, also can work, but in order further to strengthen jiggle effect, obtain more preferably fine motion and the effect of trembling, be conducive to discharge and repel carbon deposit, as improving 6, the special modified electrode of the present invention (12) is subjected to electrode tip (24) for what arc drum (24a) arranged, and improve and to be subjected to electrode tip shell (13) to be subjected to electrode tip shell (25) for what arc recessed (25a) arranged, 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.Such as Figure 36, Figure 37, Figure 38 is subjected to electrode tip (24), it is characterized in that being equipped with arc drum (24a) at the described electrode tip (12) that is subjected to, and many sideshakes (24b).Arc drum (24a) matches with arc recessed (25a) fine motion, for example 0.1mm of little the sphere of activities can be arranged up and down, simultaneously, particularly arc drum (24a) can rotate with respect to arc recessed (25a), this is very important, because the recessed rotatability of arc drum is good than screw thread or the thread-shaped groove of original part more, therefore the trend of its fine setting and carbon deposition removal is more excellent during arcing.Described discharge cartridge (11) and the inside that is subjected to electrode tip (24), be analogous to and be subjected to electrode tip (12), basin shape by top and ring sidepiece consists of discharging gap, and a plurality of wedge angles that cut out is arranged at the top and dig a plurality of ring thread-shaped grooves in week at the ring sidepiece; 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 a plurality of, particularly the opening of 6 perforations is beneficial to flowing and the discharging carbon deposit of mixed gas.Because the feature of the wedge (11b) of described discharge cartridge (11) is to be provided with in the top the polygonal pyramid that digs out, therefore criss-cross polygonal pyramid particularly is the edgetone effect of the ion current that is conducive to light a fire; Make in the basin shape gap that contains end face and ring side of spark plug, the part has increased the gap of polygonal pyramid especially, the position part that fiery karyomorphism is become is left wall, a buffer cells is arranged, can avoid being stuck near the impact of the residual gas of wall, simultaneously, many sideshakes (24b) of setting up, particularly arc drum (24a) can rotate with respect to arc recessed (25a), the wedge collision and the turbulence effect that are conducive to mixed gas, add discharge cartridge (11) and be subjected to the fine motion of electrode tip (24) and the effect of trembling, the absolute quantity of the mixed gas in the gap is increased, and the probability that catches fire also increases, in addition, wedge collision and turbulent flow also are conducive to repel the carbon deposit Molecular flow, reach the mixture that the part in the basin shape gap has liquefaction to be inclined in the wedge, the opportunity of Arc Discharge is not only arranged, and the cydariform discharge of electric discharge machining discharge is arranged, thereby its comprehensive effect improves the sparkover quality, and performance of operating condition is better.

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

The beneficial effect of ignition mechanism of the present invention is that particularly aforesaid multinomial improved beneficial effect is, all is conducive to increase the possibility of discharge and removes carbon deposit and the minimizing export license, can select and the collocation of function ripple firing chamber for various types.

The firing chamber that function wave is arranged that the present invention relates to the improvement of firing chamber and ignition mechanism, especially internal-combustion engine in a kind of fuel-burning equipment reaches and the matching method that the internal combustion engine ignition device of active receiving electrode and fine motion discharging electrode is arranged; Combustion-chamber geometry is proposed will be with engine model adaptive and with the ignition mechanism collocation theory of better effect is arranged, the suggestion of the method for the collocation of proposition combustion chambers of internal combustion engines and each ignition mechanism, the function wave firing chamber also is provided and with the adaptive function wave firing chamber of Parabolic convex-concave, is beneficial to energy-saving and emission-reduction; Described have the feature of the firing chamber of function wave to be: the piston area that forms the firing chamber is function waveform, and for example sinusoidal wave equation is:

SDi＝C*SIN(TRAJPAR*360*N)

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

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

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

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

Beneficial effect of the present invention and purpose are energy-saving and emission-reduction, are conducive to remove carbon deposit and reduce loss, arrange in pairs or groups and raise the efficiency in function ripple firing chamber, improvement firing chamber operating mode, and can select for various types.But the human invention that aspires after perfection is endless, and piston also has very large potentiality to dig.The so-called best geometry of firing chamber and piston is no doubt important, but will reach and the ignition mechanism collocation with engine model is adaptive, and better effect is just arranged.Particularly two-stroke gasoline engine is poorer than the fuel economy of four-stroke gasoline engine, and the hydrocarbon emission in the tail gas often exceeds standard; Combustion chambers of internal combustion engines and piston reach the collocation with ignition mechanism, are hard nut to cracks that relates to energy-saving and emission-reduction.Add again two auxiliary shirt rims in the piston skirt, unexpectedly have at last to reduce discharging effect up to standard.

A kind of petrol engine that adds two auxiliary shirt rims reduction hydrocarbon emissions in the piston skirt, contain 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 rims (37); Described two auxiliary shirt rim (37) is on the basis of former two shirt rims of the bilateral that there is not the connecting rod pin-and-hole that keeps original piston, and in the bottom of the bilateral that the connecting rod pin-and-hole is arranged in the skirt section of piston (31), an auxiliary shirt rim is added on every one side, can be described as two auxiliary shirt rims (37); Described two auxiliary shirt rim, it contains the through hole (43) of concave arc limit (42), piston and two auxiliary shirt rims on base (38), lower fillet (39), side (40), upper fillet (41), base, it is conducive to auxiliary guiding, assist and fall row and lubrication assistant and heat radiation; Described two auxiliary shirt rim or use aluminum alloy, or with composite material in order to reduce cylinder prepareding gap.

The improved described a kind of petrol engine that two auxiliary shirt rims reduce hydrocarbon emission that adds in the piston skirt of further experiment, it is characterized in that: each auxiliary shirt rim of described two auxiliary shirt rims (37) and described former two shirt rims all are the cylindrical prolongations along outside piston week, and its projection throw with the face of piston movement perpendicular direction along all quarterings of outside piston.

The improved described a kind of petrol engine that two auxiliary shirt rims reduce hydrocarbon emission that adds in the piston skirt of further experiment, it is characterized in that: each auxiliary shirt rim of described two auxiliary shirt rims (37) than described former two shirt rims along the cylindrical body in outside piston week prolong longer, that is to say, the base of two auxiliary shirt rims (38) than the base of former two shirt rims along farther apart from the connecting rod pin-and-hole on the direction of the cylindrical body elongation line of piston, namely two auxiliary shirt rims are higher, piston and skirt section are longer, and its effect is to be conducive to the guiding length of lengthened piston and auxiliary guiding.

The improved described a kind of petrol engine that two auxiliary shirt rims reduce hydrocarbon emission that adds in the piston skirt of further experiment, it is characterized in that: the both sides of described two auxiliary shirt rims (37) are provided with the side (40) of two auxiliary shirt rims, and it connects the base (38) of piston (31) and two auxiliary shirt rims.

The improved described a kind of petrol engine that two auxiliary shirt rims reduce hydrocarbon emission that adds in the piston skirt of further experiment, it is characterized in that: the both sides of described two auxiliary shirt rims (37), be provided with the side (40) of two auxiliary shirt rims on the base (38) that connects piston (31) and two auxiliary shirt rims, the angle of the side of its both sides (40) is greater than 100 degree.

The improved described a kind of petrol engine that two auxiliary shirt rims reduce hydrocarbon emission that adds in the piston skirt of further experiment, it is characterized in that: the both sides of described two auxiliary shirt rims (37) are provided with the side (40) of two auxiliary shirt rims, and it is that upper fillet (41) by the side of two auxiliary shirt rims connects piston (31).

The improved described a kind of petrol engine that two auxiliary shirt rims reduce hydrocarbon emission that adds in the piston skirt of further experiment, it is characterized in that: the both sides of described two auxiliary shirt rims (37) are provided with the side (40) of two auxiliary shirt rims, and it is lower fillet (39) by the side of the two auxiliary shirt rims base (38) that connects two auxiliary shirt rims.

The improved described a kind of petrol engine that two auxiliary shirt rims reduce hydrocarbon emission that adds in the piston skirt of further experiment is characterized in that: establish concave arc limit (42) on the base of described two auxiliary shirt rims (37); Described concave arc limit (42) or circular arc, or involute, or parabola, or other functions fall row in order to assisting.

The improved described a kind of petrol engine that two auxiliary shirt rims reduce hydrocarbon emission that adds in the piston skirt of further experiment is characterized in that: establish through hole (43) on described two auxiliary shirt rims (37), or pit, in order to lubrication assistant and heat radiation.

The improved described a kind of petrol engine that two auxiliary shirt rims reduce hydrocarbon emission that adds in the piston skirt of further experiment, it is characterized in that: the upper piston that reaches in described two auxiliary shirt rims (37) is provided with a plurality of through holes (43), it slightly is del and arranges, many rows are arranged, the most descending through hole is few, the Kong Yue that more up works is many, in order to lubrication assistant and heat radiation.

Add the petrol engine that two auxiliary shirt rims reduce hydrocarbon emission in the piston skirt, unexpectedly have an unexpected effect.A kind ofly add the petrol engine that two auxiliary shirt rims reduce hydrocarbon emission in the piston skirt, find out through for many years practice, it also is the crystallization of domestic and foreign experience, its usefulness be 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 is improved invention and has no limits to dead silk not to the utmost; Wear out iron shoes on a rare occasion to get, clino-diagonal is warded off in energy-saving and emission-reduction.The present invention relates to firing chamber and ignition mechanism in a kind of fuel-burning equipment, especially the firing chamber that function wave is arranged of the improvement of internal-combustion engine and with the basis of the collocation of the internal combustion engine ignition device that active receiving electrode and fine motion discharging electrode are arranged on, and add in the piston skirt on the petrolic basis of two auxiliary shirt rims reduction hydrocarbon emissions, further improved returning with scavenging road junction wedge turbulent flow altered sheet and reduced two of discharging and rush petrol engine, belongs to the firing chamber of internal-combustion engine and the technical field of turbulent scavenging.Beneficial effect of the present invention and purpose are energy-saving and emission-reduction, are conducive to remove carbon deposit and reduce loss; Arrange in pairs or groups and raise the efficiency in function ripple firing chamber, improvement firing chamber operating mode adds two auxiliary shirt rims in the piston skirt, has to reduce discharging effect up to standard, and can select for various types.But the human invention that aspires after perfection is endless, and 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 will reach and the ignition mechanism collocation with engine model is adaptive, and better effect is just arranged.Particularly two-stroke gasoline engine is poorer than the fuel economy of four-stroke gasoline engine, and the hydrocarbon emission in the tail gas often exceeds standard; Combustion chambers of internal combustion engines and piston reach the collocation with ignition mechanism and scavenging, are hard nut to cracks that relates to energy-saving and emission-reduction.If, add the petrol engine that two auxiliary shirt rims reduce hydrocarbon emission in the piston skirt, have an unexpected effect, handlebar discharges the dropping to 49 grams of 60 grams and can reach 50 gram target embodiments in other words; So, alter two of sheet reduction discharging for turbulent time with scavenging road junction wedge and rush petrol engine, beyond thought reduction of discharging effect up to standard is arranged especially, not only can reach 50 grams and mark, and can drop to 39.9 grams, this rushes petrolic reduction of discharging up to standard in enormous quantities two is outstanding contributions.Everybody knows that the discharging of two impact machines often exceeds standard, but nobody can thoroughly solve; This scavenging road junction wedge turbulent flow returns alters sheet, is to add small pieces at the scavenging road junction of two qi of chong channel ascending adversely cylinders, seems simple, and but nobody can find out; Be who the unexpected small pieces that will go to burn-on at the place, scavenging road junction of cylinder refill up and start the engine and contact with high speed piston because that can not think to anticipate, mess things up, even expected also dare not doing, what that may damage, compensation! But the sudden caprice of often having an examination in arms just has amazing effect, and what this is, this is just invention not? this is after travelling far and wide in search of it, and thousand consider and idol has one, is again the crystallization of groping for many years with domestic and foreign experience.Its usefulness is that beyond thought reduction of discharging effect up to standard is arranged.Although it is very complicated that spark ignition process and two is rushed detailed physical and chemical processes, 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, the place produces turbulent flow with wedge at the scavenging road junction, the rear waste gas that burns is returned the possibility that channels to gas handling system retardation is arranged, it seemingly belongs to the turbulent flow ventilation, known cross flow scavenging for two stroke IC engine, three kinds of ventilation schemes of loop scavenging and uniflow scavenging, opened up the approach of altering sheet at the scavenging road junction with wedge for turbulent time that can reduce discharging, referred to as the clino-diagonal of turbulent scavenging.Although the mechanism of its atom level remains following the exploration, it is definite that it rushes the application at petrol engine scavenging road junction two.

A kind of returning with scavenging road junction wedge turbulent flow altered sheet and reduced two of discharging and rush petrol engine, 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) be two rush petrolic about containing along Central Symmetry ground on the cylinder chamber of dress piston the cylinder body (44) at one scavenging road junction (45) respectively, it is characterized in that: on each scavenging road junction (45) of one about the symmetry of described cylinder body (44), each symmetrically about each ground be provided with the wedge turbulent flow and return and alter sheet (46), further improve, utilize the equal feature of logarithmic spiral tool pressure angle of higher mathematics, make the sheet of adding have a section of logarithmic spiral, then gush thereon mixed air-flow just easily steadily, block waste gas and return and alter in order to reduce discharging in order to utilize equal pressure angle to produce turbulent flow at place, scavenging road junction.

Get scavenging road junction logarithmic differentiation equation turbulent flow and return and alter sheet and fall row's two and rush a section of petrolic described main body,

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

If polar equation ρ=ρ (θ) equates because wanting pressure angle λ, so tg λ=constant everywhere, make tg λ=k,

By pressure angle formula tg λ=ρ '/ρ,

ρ '/ρ=k is just arranged,

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

Find the solution d ρ/d θ=k ρ, both sides integration behind the variables separation:

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

Inρ＝kθ+C，

Namely:

ρ＝Ae ^kθ+c＝e ^c.e ^kθ＝Ae ^kθ

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

Set up parameter (PARAMETER) 1: real number (real number);

Set up parameter (PARAMETER) 2: integer (integer);

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;

Follow again, adopt rotation, merge, the instructions such as materialization, and with the workpiece assembling and merge, get final product modeling;

Use again described equation and the modeling of PRO/ENGINEER WILDFIRE institute, input CNC machining center, with CIMATRO or MASTCAM, the punching block of superzapping cast aluminium alloy, or use milling machine, planer and electrical spark working work are auxiliary; When using electric discharge machining, with described equation input CNC machining center, then to make first the tungsten copper electrode, with there being the lathe of three-dimensional rotation head more satisfactory, as more satisfactory with Switzerland Xia Mier machine; Again with the die casting machine batch production that cold pressing chamber or hot pressing chamber are arranged; Again machining.

The workpiece multipurpose material is aluminum alloy ZL109, or AC8A.

Be welded on the scavenging road junction with other sheet of system, also available; But the polishing trouble is time-consuming.

Logarithmic differentiation equation turbulent flow in a kind of scavenging road junction returns alters sheet and falls row's two and rush petrol engine, contain 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) be two rush petrolic about containing along Central Symmetry ground on the cylinder chamber of dress piston the cylinder body (44) at one scavenging road junction (45) respectively, it is characterized in that: on each scavenging road junction (45) of one about the symmetry of described cylinder body (44), each symmetrically about each ground be provided with the wedge turbulent flow and return and alter sheet (46), its main body is that pressure angle approach to equate a section by the logarithmic spiral of logarithmic differentiation equation, blocks waste gas and returns and alter in order to reduce discharging in order to produce turbulent flow at place, scavenging road junction.

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

Return by the described a kind of scavenging road junction logarithmic differentiation equation turbulent flow of logarithmic differentiation correction and to alter sheet and fall row's two and rush petrol engine, it is characterized in that: described wedge turbulent flow returns alters sheet (46) and comprises the wedge turbulent flow and go back to the scavenging road junction (47) of altering sheet, wedge (48), wedge turbulent flow that the wedge turbulent flow goes back to the logical scavenging road junction of altering sheet and return returning of the logical scavenging road junction of altering sheet and alter the turbulent shield (50) that grid (49), wedge turbulent flow go back to the logical scavenging road junction of altering sheet, all one section of the tool logarithmic spiral.

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

Return by the described a kind of scavenging road junction logarithmic differentiation equation turbulent flow of logarithmic differentiation correction and to alter sheet and fall row's two and rush petrol engine, it is characterized in that: described wedge turbulent flow returns alters wedge turbulent flow that sheet (46) comprises and goes 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 to say a section of its tool logarithmic spiral of small end that returns the inclined wedge-shaped of altering sheet (46) at the wedge turbulent flow.

Return by the described a kind of scavenging road junction logarithmic differentiation equation turbulent flow of logarithmic differentiation correction and to alter sheet and fall row's two and rush petrol engine, it is characterized in that: described wedge turbulent flow return alter wedge (48) that described wedge turbulent flow that sheet (46) comprises goes back to the logical scavenging road junction of altering sheet be located at the wedge turbulent flow return alter the inboard of sheet (46) and with the bottom connection of the below at the scavenging road junction (45) of cylinder body, a section of its tool logarithmic spiral of described inboard.

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

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

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

Return by the described a kind of scavenging road junction logarithmic differentiation equation turbulent flow of logarithmic differentiation correction and to alter sheet and fall row's two and rush petrol engine, it is characterized in that: described wedge turbulent flow return alter sheet (46) above be provided with the turbulent shield (50) that the wedge turbulent flow goes back to the logical scavenging road junction of altering sheet, the one end returns and alters sheet and link to each other with the chamfering place that a side of the outlet of the scavenging air belt at the scavenging road junction (45) of cylinder body intersects with being located at wedge turbulent flow, and its other end and wedge turbulent flow time are altered the small end that the top of sheet that is to say with wedge is altered the inclined wedge-shaped of sheet (46) for turbulent time and linked to each other; And a section of top its tool logarithmic spiral of described turbulent shield.

Usefulness of the present invention: a kind of scavenging road junction logarithmic differentiation equation turbulent flow returns alters sheet and falls row's two and rush petrol engine, beyond thought reduction of discharging effect up to standard is arranged especially, not only can reach 50 gram marks, and can drop to 39.9 grams, this only is fragmentary data certainly, judges the case as it stands, surplus is larger, safety coefficient is large, and waster is few, and this rushes petrolic reduction of discharging up to standard in enormous quantities two is outstanding contributions.If multiple improvement integrated application adds two auxiliary shirt rims when effect is more preferably under the piston skirt; Scavenging road junction at cylinder body, each symmetrically about each ground be provided with the wedge turbulent flow and return and alter sheet (46), its main body is that pressure angle approach to equate a section by the logarithmic spiral of logarithmic differentiation equation, blocks waste gas and returns and alter in order to reduce discharging in order to produce turbulent flow at place, scavenging road junction.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

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

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

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

Fig. 4 is the schematic diagram with the insulator (3) of the multiple tracks umbrella rib in zigzag fashion 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 that the electrode (121) in many sides and many foldings gap is arranged.

Fig. 8 is the worm's eye view that the electrode (121) in many sides and many foldings gap is arranged.

Fig. 9 is the schematic perspective view that the electrode (121) in many sides and many foldings gap is arranged.

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

Figure 11 is the schematic top plan view that the electrode (121) in many sides and many foldings gap is arranged.

Figure 12 is the schematic top plan view of electrode (23) that many sides and many gaps are arranged.

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

Figure 14 is the schematic perspective view that many sides and the spark plug of the electrode (121) in many foldings gap are arranged.

Figure 15 is the schematic perspective view of electrode (21) that many sides and many gaps are arranged.

Figure 16 is the elevational schematic view of the spark plug of electrode (21) that many sides and many gaps are arranged.

Figure 17 is the plan view of the spark plug of electrode (21) that many sides and many gaps are arranged.

Figure 18 is the elevational schematic view of electrode (21) that many sides and many gaps are arranged.

Figure 19 is the schematic perspective view that the spark plug of the round basin of side and the electrode (22) that acute angle star is dug at the middle part is arranged.

Figure 20 is the elevational schematic view that the spark plug of the round basin of side and the electrode (22) that acute angle star is dug at the middle part is arranged.

Figure 21 is the schematic perspective view that the inside of the round basin of side and the electrode (22) that acute angle star is dug at the middle part is arranged.

Figure 22 is the schematic perspective view that the outside of the round basin of side and the electrode (22) that acute angle star is dug at the middle part is arranged.

Figure 23 has the round basin of side and the worm's eye view of the electrode (22) that acute angle star is dug at the middle part.

Figure 24 has the round basin of side and the plan view of the electrode (22) that acute angle star is dug at the middle part.

Figure 25 is the schematic perspective view of the spark plug of electrode (23) that many sides and many gaps are arranged.

Figure 26 is the elevational schematic view of the spark plug of electrode (23) that many sides and many gaps are arranged.

Figure 27 is the plan view of electrode (23) that many sides and many gaps are arranged.

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 that many sides and the spark plug of the electrode (121) in many foldings gap are arranged.

Figure 30 is the exploded perspective view that many sides and the spark plug of the electrode (121) in many foldings gap are arranged.

Figure 31 is the sectional drawing that is subjected to electrode (12).

Figure 32 is the worm's eye view that is subjected to electrode (12).

Figure 33 is the elevational schematic view that is subjected to electrode (12).

Figure 34 is the side view that is subjected to electrode (12).

Figure 35 is the plan view that is subjected to electrode (12).

Figure 36 is the stereogram that is subjected to electrode (24).

Figure 37 is the sectional drawing that is subjected to electrode (24).

Figure 38 is the schematic perspective view that is subjected to electrode (24).

Figure 39 is the schematic perspective view that is subjected to electrode jacket (25).

Figure 40 is the generalized section that is subjected to electrode jacket (25).

Figure 41 has the generalized section that is subjected to electrode (24) and is subjected to the spark plug of electrode jacket (25).

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

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

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

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

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

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

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

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

Figure 50 is that schematic diagram is looked on the right side of piston (31) that function waveform (32) are arranged.

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

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

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

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

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

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

Figure 57 is that schematic diagram is looked on the left side of piston (31) that function waveform (32) are arranged.

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

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

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

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

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

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

Figure 64 is by being provided with waveform pit (33), air inlet pit (35), the piston that function waveform (32) are arranged (31) 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 left side line of vision that adds the piston of two auxiliary shirt rims.

Figure 66 be add two auxiliary shirt rims piston positive side-looking to sectional drawing.

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

Figure 68 returns with scavenging road junction wedge turbulent flow to alter the schematic perspective view that gasoline engine cylinder is rushed in two of sheet reduction discharging.

Figure 69 returns with scavenging road junction wedge turbulent flow to alter the local enlarged diagram that gasoline engine cylinder is rushed in two of sheet reduction discharging.

Among the 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. be pad (2); 3. be the insulator (3) with the multiple tracks umbrella rib in zigzag fashion cross section; 4. be the interior induction reactance of a threaded end (4) and the threaded the other end (4b) and inductance coil (15); 5. be the shell (5) with radiating fin; 6. be S shape retaining washer (6); 7. be the glass-sealing agent (7) that contains resistance; 8. be to embed steel core (8); 9. be discharging electrode bar (9); 10. be to be subjected to electrode tie rod (10); 11. be discharge cartridge (11); 12. be to be subjected to electrode tip (12); 13. be to be subjected to electrode tip shell (13); 14. be to be subjected to electrode tip shell back-up ring (14); 15. be inductance coil (15); 16. be that extension (16a) is arranged, arc portion (16b), the cranked electrode (16) of turn of bilge (16c); 17. be a plurality of sharp notch (17); 18. be many foldings gaps (18); 19. be lower outstanding (19); 20. be discharging gap (20); 21. be the electrode (21) that many sides and many gaps are arranged; 22. be that the round basin of side and the electrode (22) that acute angle star is dug at the middle part are arranged; 23. be that the electrode (23) that singly is subjected to the many sides of having of electrode stem and many gaps is arranged; 121. be the electrode (121) that many sides and many foldings gap are arranged; 12a. be basin shape (12a); 12b. be 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. be piston (31); 32. be the function waveform (32) of piston area; 33. be waveform pit (33); 34. be exhaust projection (34); 35. be air inlet pit (35); 36. be spark pit (36); 37. be two auxiliary shirt rims; 38. be the base of two auxiliary shirt rims; 39. be the lower fillet of the side of two auxiliary shirt rims; 40. be the side of two auxiliary shirt rims; 41. be the upper fillet of the side of two auxiliary shirt rims; 42. be the concave arc limit on the base of two auxiliary shirt rims; 43. be the through hole of piston and two auxiliary shirt rims; 44. be to alter two of sheet reduction discharging for turbulent time with scavenging road junction wedge to rush petrolic cylinder body; 45. be the scavenging road junction; 46. be that turbulent the returning of wedge altered sheet; 47. be that the wedge turbulent flow goes back to the scavenging road junction of altering sheet; 48. be the wedge that the wedge turbulent flow goes back to the logical scavenging road junction of altering sheet; 49. be that wedge turbulent flow returns the returning of logical scavenging road junction of altering sheet and alters grid; 50. be the turbulent shield that the wedge turbulent flow goes back to the logical scavenging road junction of altering sheet.

Embodiment

Respectively successively assembling (and sintered ceramic and welding be subjected to electrode tie rod) is with calibration 1a, zigzag fashion umbrella rib 1c, the outer calibration high-voltage coupler 1 of fixing hole 1b and internal thread, pad 2, insulator 3 with the multiple tracks umbrella rib in zigzag fashion cross section, the interior induction reactance of a threaded end 4 and threaded the other end 4b and inductance coil 15, with the shell 5 of radiating fin, S shape retaining washer 6, the glass-sealing agent 7 that contains resistance, embed steel core 8, discharging electrode bar 9 is subjected to electrode tie rod 10, discharge cartridge 11, be subjected to electrode tip 12, be subjected to electrode tip shell 13, be subjected to electrode tip shell back-up ring 14.Described with calibration 1a, zigzag fashion umbrella rib 1c opens a groove on the electric conductor of the outer calibration high-voltage coupler 1 of fixing hole 1b and internal thread at least, or multiple-grooved; Preferably the number of multiple-grooved is by the degree value; For example, the number of degrees of certain spark plug are 6, and the number of then slotting is 6; The number of degrees of certain spark plug are 7, and the number of then slotting is 7.The electric conductor of the fluting of described joiner 1 being screwed in a threaded end 4 and knock fixing hole 1b makes spark plug.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, the electric conductor of joiner 1 is linked to each other with high pressure external connection electrically conductive socket that link to each other and in cap.When to ignition advance angle, electric current is successively by joiner 1, the interior induction reactance of a threaded end 4 and threaded the other end 4b and inductance coil 15 contains the glass-sealing agent 7 of resistance, embeds steel core 8, discharging electrode bar 9, be subjected to electrode tie rod 10, discharge cartridge 11 is subjected to electrode tip 12, be subjected to electrode tip shell 13, and at discharge cartridge 11 and be subjected to 12 discharges of electrode tip.Described 4, part 15, part 7, part 8, part 9 insulated bodys 3 particularly ceramic body surround, just mutually meeting coupling capacitive reactance, 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.Because the heat diffusion area of the radiating fin more much bigger than original cylindrical body is arranged, it is self-evident that its thermal diffusivity is improved to some extent with the shell 5 of radiating fin.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 are more slow, more easily insert in order to the socket of spark cap; And the angle of zigzag fashion in the inner part and axis is larger, is difficult for deviating from order to the socket of spark cap.The groove depth of described fluting is the only about half of of joiner overall length; Fluting is different with its effect of not slotting, and is easy to behind the electric conductor fluting that little expansion forms multijaw and the socket of favourable spark cap is difficult for deviating from.Because the described feature that is provided with the shell 5 of radiating fin is to be provided with radiating fin 5a, radiating fin 5b, radiating fin 5c, particularly described radiating fin is hexagonal, or circular, so will utilize original steel material, the material that originally will be cut away is in vain kept a part and makes radiating fin as far as possible.Described radiating fin has at least one or more.Radiating fin can with its on the hex wrench nut process with cutter.Socket wrench can be inserted in deeper and morely when also being convenient to install, and is difficult for skidding.Because as improving, the present invention improves very cranked electrode 16 of common single ordinary telegram 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 forms, and this three part equates with the spacing of discharging electrode, thereby consists of the discharging gap that is subjected to electrode and discharging electrode, and than original front head, being conducive to the absolute quantity increase of the mixed air in the gap and the probability that catches fire increases.The residual gas at discharging gap place wishes and can clean, and mixed air is easily caught fire, and this is larger to warming-up and low-load performance effect; But do not wish strong air-flow and directly rushed at discharging gap at ignition point, thereby dispelled fire nuclear, 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; But also function waveform piston collocation of this cranked electrode 16, preferably wave height C gets 0.5-0.9, and wave number N gets 15-21.

As the embodiment 2 who improves 2, because the special modified electrode of the present invention is the electrode 12 that many sides and many foldings gap are arranged, it not only has aforesaid by extension 16a, arc portion 16b, three parts that turn of bilge 16c forms, equate with the spacing of discharging electrode, thereby consist of the discharging gap that is subjected to electrode and discharging electrode, and than original front head, also be provided with especially a plurality of sharp notch 17, so, be breakdown phase in the phase I of spark ignition process, when being conducive to discharge, make the ion current that has punctured mixed gas, march on towards discharging electrode from being subjected to electrode.Although Peak current is large, the time of whole breakdown phase is very short, only is ten microseconds, therefore a plurality of sharp notch 17 is feasible.Again because each is linked to each other with being subjected to electrode 12 by electrode stem 10, and the middle part that is subjected to electrode 12 has many foldings gap 18, the second stage that is conducive in the spark ignition process is the electric arc stage, and it is the glow discharge stage in the phase III of spark ignition process, the favourable discharge channel of opening, and easily make many foldings gap that more multi-hop fire passage is arranged, and easily make the mixed gas circulation.Kind electrode 12 also can be only with half, and there is discharging gap its end face and side, but the collocation of function waveform piston.

As the embodiment 3 who improves 3, the special modified electrode of the present invention is the electrode 21 that many sides and many gaps are arranged, because it not only has aforesaid by extension 16a, arc portion 16b, this three part that turn of bilge 16c forms equates with the spacing of discharging electrode, thereby consists of the discharging gap that is subjected to electrode and discharging electrode, and than original front head, also be provided with especially a plurality of sharp notch 17; Each is subjected to electrode stem and be connected as one by electrode, is convenient to make; Because the two ends of making discharging gap 20 at the middle part of the described electrode 21 that many sides and many gaps are arranged have lower outstandingly 19, described lower outstanding 19 bottom is lower than the discharging electrode top again, and its use is the front that has added sideflash.Particularly the described transverse features that the electrode 21 in many sides and many gaps arranged is a slice at least, or is more than two, for example three.Be preferably multi-disc, thus be conducive to form grid sheet grid point battle array effect, thus increase the possibility of electricity fire nuclear and cydariform discharge; Because under engine operational conditions, static ignition of mixed gas energy only needs 0.2 milli burnt, the ignition of mixed gas energy of high flow velocities only needs 3 millis burnt, and the energy that classic ignition system is supplied with is burnt greater than 30 millis, 10 times of amounts are namely arranged, positive these characteristics of good utilisation, design multi-disc grid sheet grid of the present invention, at various physical fields aerodynamic field for example, electric field, and fluid field turbulent flow, and under the electrochemical comprehensive function, easily form little the trembling of grid sheet grating compartment, and favourable carbon deposit and the favourable discharging gap formation discharge channel of shrugging off.As the embodiment 3 who improves 4, because described have the electrode 21 in many sides and many gaps or remove the single electrode stem that is subjected to, its feature specialization is that the electrode 23 that singly is subjected to the many sides of having of electrode stem and many gaps is arranged, so its usefulness is material-saving still not, and can form little the trembling of grid sheet grating compartment and favourablely shrug off carbon deposit and favourable discharging gap forms discharge channel; Therefore this electrode can be arranged in pairs or groups with the function waveform piston of nothing especially projection and pit.

As the embodiment 5 who improves 5, the special modified electrode of the present invention is that the round basin of side and the electrode 22 that acute angle star is dug at the middle part are arranged, because it is characterized in that having the round basin of side and middle part to dig acute angle star; There is basin shape namely not only end face to be arranged but also the side is arranged, thereby added the front of sideflash; Acute angle star has been dug at its middle part, refers to that the angle of its star pawl that stretches out of star is acute angle; Its feature is acute angle particularly, rather than right angle or obtuse angle.Or star, or two stars, or a plurality of stars, five-pointed star preferably, form asymmetric multipoint random discharge channel so be conducive to the wedge effect of discharging gap and point discharge effect, be conducive to increase the possibility of discharge and remove carbon deposit, the electrode of acute angle star is conducive to the continuity of electrical spark effect and the distortion of the spark sharp side due to the turbulent flow, molecule interpenetrates, and turbulent flow speed increases.The suitable waveform piston collocation with spark pit 36 is arranged of this electrode.

The internal combustion engine ignition device that active receiving electrode and fine motion discharging electrode are arranged has from fine motion function and changeable electrodes core, with interchangeable for a long time.Because screw thread or the mutually movable assembling of thread-shaped groove that electrode 12 and electrode shell 13 are provided with by the described inside that is subjected to electrode tip shell 13, oligodynamics are arranged, and by blocked by electrode tip shell back-up ring 14, can change, also can work, but in order further to strengthen jiggle effect, obtain more preferably fine motion and the effect of trembling, be conducive to discharge and repel carbon deposit, as improving 6, the special modified electrode 12 of the present invention is subjected to electrode tip 24 for what arc drum 24a arranged, and improves and be subjected to electrode tip shell 13 the recessed 25a's of arc be subjected to electrode tip shell 25 in order to have, 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.Owing to being subjected to 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, for example 0.1mm of little the sphere of activities can be arranged up and down, simultaneously, particularly arc drum 24a can rotate with respect to the recessed 25a of arc, so the recessed rotatability of arc drum is good than screw thread or the thread-shaped groove of original part more, therefore the trend of its fine setting and carbon deposition removal is more excellent during arcing; The place that first time punctures during discharge, at second time and next be still the position of easily hitting, because shake and the fine motion of electrode are particularly rotated, with regard to regard to the place of relative two electrode punctures last time, relatively-stationary discharge place cannot not turn to fixingly and has avoided, thereby makes the local displacement of multiple discharge, just has the electrode molecule to be translated into gaseous state and loss and discharge each time, therefore its usefulness is self-evident, has prolonged the life-span of electrode and be beneficial to carbon deposition removal.Shake and the fine motion of electrode are particularly rotated, and under the vibration condition in kinetic energy engine are easily to obtain.Because described discharge cartridge 11 and the inside that is subjected to electrode tip 24 are analogous to and are subjected to electrode tip 12, consist of discharging gap by the basin shape of top and ring sidepiece, and a plurality of wedge angles that cut out are arranged at the top and dig a plurality of ring thread-shaped grooves in week, favourable arcings at the ring sidepiece.The many sideshakes 24b that particularly sets up in the discharging gap district is characterized in that being provided with at least one at described ring sidepiece, or 2, or a plurality of, particularly the opening of 6 perforations is conducive to flowing and the discharging carbon deposit of mixed gas, and particularly rotates the air-flow that provides additional for shake and fine motion.Because the feature of the wedge 11b of described discharge cartridge 11 is to be provided with in the top the polygonal pyramid that digs out, therefore criss-cross polygonal pyramid particularly is the edgetone effect of the ion current that is conducive to light a fire; Make in the basin shape gap that contains end face and ring side of spark plug, the part has increased the gap of polygonal pyramid especially, the position part that fiery karyomorphism is become is left wall, a buffer cells is arranged, can avoid being stuck near the impact of the residual gas of wall, simultaneously, cooperated the many sideshakes 24b that sets up, particularly arc drum 24a is with respect to the rotation of the recessed 25a of arc, the wedge collision and the turbulence effect that are conducive to mixed gas, add discharge cartridge 11 and be subjected to the fine motion of electrode tip 24 and the effect of trembling, the absolute quantity of the mixed gas in the gap is increased, and the probability that catches fire also increases, in addition, wedge collision and turbulent flow also are conducive to repel the carbon deposit Molecular flow, reach the mixture that the part in the basin shape gap has liquefaction to be inclined in the wedge, and the opportunity of Arc Discharge is not only arranged, and there is the cydariform of similar electric discharge machining discharge to discharge, thereby its General improves the sparkover quality, and performance of operating condition is better.The criss-cross polygonal pyramid of the wedge 11b of described discharge cartridge 11 can be utilized to put the instrument of thread, and the screw thread of wedge 11b or thread-shaped groove 11c and discharging electrode bar 9 are matched.The described cross that is subjected to electrode tip 12 and is subjected to electrode tip 24 also can be utilized to put the instrument of thread.The side flabellum 11a of described discharge cartridge 11 has complementary little transferring to use and complementary discharge process.The suitable waveform piston collocation with spark pit 36 is arranged of this electrode.Spark pit 36 increases seed region, and air inlet pit 33 increases air inlet and flows, and exhaust pit 33 has the squish effect, and function wave helps deflagration wave and disseminates.

Because described multiple improvement can be selected for various types, and also can revise advance angle and regulation and control high-voltage pulse parameter when on probation in the hope of better.The in addition special improvement 7 that proposes is to make the positive and negative commutation of high electric field pulse and change direction, and also can try out.Although the spark ignition process is very complicated, the mankind still have many aspects not clear so far, and we know the positive and negative in discharging electrode and be subjected to the loss of electrode that Different Effects is arranged of electricity.Improving 7 is a kind of methods for the minimizing export license, is the positive and negative commutation that makes electric current and voltage, and this is not difficult to realize with electromagnetism class and electrical type circuit, for example uses astatic multivibrator and differentiator; The number of times of commutation or synchronous with engine speed, or intermittently, or some commutations in period of interval, be worth further improving.Described various improvement all is conducive to increase the possibility of discharge and removes carbon deposit and reduce export license, maybe will be according to different types when practicality select after particularly firing angle comes pilot, and with the firing chamber collocation that function wave is arranged of improvement.

The firing chamber that function wave is arranged that the present invention relates to a kind of improvement of internal-combustion engine reaches and the matching method that the internal combustion engine ignition device of active receiving electrode and fine motion discharging electrode is arranged; Combustion-chamber geometry is proposed will be with engine model adaptive and with the ignition mechanism collocation theory of better effect is arranged, the suggestion of the method for the collocation of proposition combustion chambers of internal combustion engines and each ignition mechanism, the function wave firing chamber also is provided and with the adaptive function wave firing chamber of Parabolic convex-concave, is beneficial to energy-saving and emission-reduction; Described have the firing chamber of function wave to have multiple or multiple combination, and the piston area that forms the firing chamber is function waveform or multiple combination, and for example sinusoidal wave equation is:

SDi＝C*SIN(TRAJPAR*360*N)

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

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

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

With described equation input CNC machining center, with the punching block of CIMATRO or MASTCAM superzapping cast aluminium alloy, or use milling machine, planer and electric discharge machining again; When using electric discharge machining, with described equation input CNC machining center, then to make first the tungsten copper electrode; Again with the die casting machine batch production that cold pressing chamber or hot pressing chamber are arranged; Again machining.The piston multipurpose material is aluminum alloy ZL109, or AC8A.Such as racing car or military vehicle, piston is near the material of combustor surface or with highly heat-conductive material such as silver alloy under high-end condition; Perhaps use exotic material such as silver-colored tungsten-copper alloy, even with special highly heat-conductive material such as synthetic diamond.

Beneficial effect of the present invention and purpose are energy-saving and emission-reduction, are conducive to remove carbon deposit and reduce loss, arrange in pairs or groups and raise the efficiency in function ripple firing chamber, improvement firing chamber operating mode, and can select for various types.But the human invention that aspires after perfection is endless, and piston also has very large potentiality to dig.The so-called best geometry of firing chamber and piston is no doubt important, but will reach and the ignition mechanism collocation with engine model is adaptive, and better effect is just arranged.Particularly two-stroke gasoline engine is poorer than the fuel economy of four-stroke gasoline engine, and the hydrocarbon emission in the tail gas often exceeds standard.Combustion chambers of internal combustion engines and piston reach the collocation with ignition mechanism, are hard nut to cracks that relates to energy-saving and emission-reduction.Add again two auxiliary shirt rims in the piston skirt, unexpectedly have at last to reduce discharging effect up to standard.

A kind of petrol engine that adds two auxiliary shirt rims reduction hydrocarbon emissions in the piston skirt, contain 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 rims (37); Described two auxiliary shirt rim (37) is on the basis of former two shirt rims of the bilateral that there is not the connecting rod pin-and-hole that keeps original piston, and in the bottom of the bilateral that the connecting rod pin-and-hole is arranged in the skirt section of piston (31), an auxiliary shirt rim is added on every one side, can be described as two auxiliary shirt rims (37); Described two auxiliary shirt rim, it contains the through hole (43) of concave arc limit (42), piston and two auxiliary shirt rims on base (38), lower fillet (39), side (40), upper fillet (41), base, it is conducive to auxiliary guiding, assist and fall row and lubrication assistant and heat radiation; Described two auxiliary shirt rim or use aluminum alloy, rheo-die-casting is integrated; Or with composite material such as highly dense plastics or micropore ceramics, in order to reduce cylinder prepareding gap, auxiliary guiding, also wear-resisting.

The improved described a kind of petrol engine that two auxiliary shirt rims reduce hydrocarbon emission that adds in the piston skirt of further experiment, it is characterized in that: each auxiliary shirt rim of described two auxiliary shirt rims (37) and described former two shirt rims all are the cylindrical prolongations along outside piston week, and its projection throw with the face of piston movement perpendicular direction along the outside piston week quartering, if press 1234 along circumference, former two shirt rims are 1,3; Auxiliary shirt rim is 2,4; Added heat dispersing surface.

The improved described a kind of petrol engine that two auxiliary shirt rims reduce hydrocarbon emission that adds in the piston skirt of further experiment, it is characterized in that: each auxiliary shirt rim of described two auxiliary shirt rims (37) than described former two shirt rims along the cylindrical body in outside piston week prolong longer, that is to say, the base of two auxiliary shirt rims (38) than the base of former two shirt rims along farther apart from the connecting rod pin-and-hole on the direction of the cylindrical body elongation line of piston, namely two auxiliary shirt rims are higher, piston and skirt section are longer, and its effect is to be conducive to the guiding length of lengthened piston and auxiliary guiding.

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

The improved described a kind of petrol engine that two auxiliary shirt rims reduce hydrocarbon emission that adds in the piston skirt of further experiment, it is characterized in that: the both sides of described two auxiliary shirt rims (37), be provided with the side (40) of two auxiliary shirt rims on the base (38) that connects piston (31) and two auxiliary shirt rims, the angle of the side of its both sides (40) is greater than 100 degree.

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

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

The improved described a kind of petrol engine that two auxiliary shirt rims reduce hydrocarbon emission that adds in the piston skirt of further experiment is characterized in that: establish concave arc limit (42) on the base of described two auxiliary shirt rims (37); Described concave arc limit (42) or circular arc, or involute, or parabola, or other functions are in order to playing turbulent flow and sweeping residual effect and answer and assist and fall row.

The improved described a kind of petrol engine that two auxiliary shirt rims reduce hydrocarbon emission that adds in the piston skirt of further experiment is characterized in that: establish through hole (43) on described two auxiliary shirt rims (37), or pit, in order to lubrication assistant and heat radiation.

The improved described a kind of petrol engine that two auxiliary shirt rims reduce hydrocarbon emission that adds in the piston skirt of further experiment, it is characterized in that: the upper piston that reaches in described two auxiliary shirt rims (37) is provided with a plurality of through holes (43), it slightly is del and arranges, many rows are arranged, the most descending through hole is few, the Kong Yue that more up works is many, in order to lubrication assistant and heat radiation.

Add the petrol engine that two auxiliary shirt rims reduce hydrocarbon emission in the piston skirt, unexpectedly have an unexpected effect.Originally discharge value is 60-70 usually, does not reach 50 numbers up to standard; What add two auxiliary shirt rims is 49, has reached.

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

The emissions data that under above-mentioned testing conditions, adds the motor of two auxiliary shirt rims:

Value often is taken as the discharge value of hydrocarbon at last, and mark one is 50, and adding two auxiliary shirt rims just can be by up to standard.

Thisly add the petrol engine that two auxiliary shirt rims reduce hydrocarbon emission in the piston skirt, put into practice for many years and find out, it also is the crystallization of domestic and foreign experience, its usefulness be 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.

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

Add the petrol engine that two auxiliary shirt rims reduce hydrocarbon emission in the piston skirt, find out through for many years practice, it also is the crystallization of domestic and foreign experience, its usefulness be 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 is improved invention and has no limits to dead silk not to the utmost; Wear out iron shoes on a rare occasion to get, clino-diagonal is warded off in energy-saving and emission-reduction.The present invention relates to firing chamber and ignition mechanism in a kind of fuel-burning equipment, especially the firing chamber that function wave is arranged of the improvement of internal-combustion engine and with the basis of the collocation of the internal combustion engine ignition device that active receiving electrode and fine motion discharging electrode are arranged on, and add in the piston skirt on the petrolic basis of two auxiliary shirt rims reduction hydrocarbon emissions, further improved returning with scavenging road junction wedge turbulent flow altered sheet and reduced two of discharging and rush petrol engine, belongs to the firing chamber of internal-combustion engine and the technical field of turbulent scavenging.Beneficial effect of the present invention and purpose are energy-saving and emission-reduction, are conducive to remove carbon deposit and reduce loss; Arrange in pairs or groups and raise the efficiency in function ripple firing chamber, improvement firing chamber operating mode adds two auxiliary shirt rims in the piston skirt, has to reduce discharging effect up to standard, and can select for various types.But the human invention that aspires after perfection is endless, and 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 will reach and the ignition mechanism collocation with engine model is adaptive, and better effect is just arranged.Particularly two-stroke gasoline engine is poorer than the fuel economy of four-stroke gasoline engine, and the hydrocarbon emission in the tail gas often exceeds standard; Combustion chambers of internal combustion engines and piston reach the collocation with ignition mechanism and scavenging, are hard nut to cracks that relates to energy-saving and emission-reduction.If, add the petrol engine that two auxiliary shirt rims reduce hydrocarbon emission in the piston skirt, have an unexpected effect, handlebar discharges the dropping to 49 grams of 60 grams and can reach 50 gram target embodiments in other words; So, alter two of sheet reduction discharging for turbulent time with scavenging road junction wedge and rush petrol engine, beyond thought reduction of discharging effect up to standard is arranged especially, not only can reach 50 grams and mark, and can drop to 39.9 grams, this rushes petrolic reduction of discharging up to standard in enormous quantities two is outstanding contributions.Everybody knows that the discharging of two impact machines often exceeds standard, but nobody can thoroughly solve; This scavenging road junction wedge turbulent flow returns alters sheet, is to add small pieces at the scavenging road junction of two qi of chong channel ascending adversely cylinders, seems simple, and but nobody can find out; Be who the unexpected small pieces that will go to burn-on at the place, scavenging road junction of cylinder refill up and start the engine and contact with high speed piston because that can not think to anticipate, mess things up, even expected also dare not doing, what that may damage, compensation! But the sudden caprice of often having an examination in arms just has amazing effect, and what this is, this is just invention not? this is after travelling far and wide in search of it, and thousand consider and idol has one, is again the crystallization of groping for many years with domestic and foreign experience.Its usefulness is that beyond thought reduction of discharging effect up to standard is arranged.Although it is very complicated that spark ignition process and two is rushed detailed physical and chemical processes, 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, the place produces turbulent flow with wedge at the scavenging road junction, the rear waste gas that burns is returned the possibility that channels to gas handling system retardation is arranged, it seemingly belongs to the turbulent flow ventilation, known cross flow scavenging for two stroke IC engine, three kinds of ventilation schemes of loop scavenging and uniflow scavenging, opened up the approach of altering sheet at the scavenging road junction with wedge for turbulent time that can reduce discharging, referred to as the clino-diagonal of turbulent scavenging.Although the mechanism of its atom level remains following the exploration, it is definite that it rushes the application at petrol engine scavenging road junction two.

A kind of returning with scavenging road junction wedge turbulent flow altered sheet and reduced two of discharging and rush petrol engine, 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) be two rush petrolic about containing along Central Symmetry ground on the cylinder chamber of dress piston the cylinder body (44) at one scavenging road junction (45) respectively, it is characterized in that: on each scavenging road junction (45) of one about the symmetry of described cylinder body (44), each symmetrically about each ground be provided with the wedge turbulent flow and return and alter sheet (46), block waste gas and return and alter in order to reduce discharging in order to produce turbulent flow at place, scavenging road junction.

Logarithmic differentiation equation turbulent flow in scavenging road junction returns alters sheet and falls row's two and rush petrol engine, contain 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) be two rush petrolic about containing along Central Symmetry ground on the cylinder chamber of dress piston the cylinder body (44) at one scavenging road junction (45) respectively, it is characterized in that: on each scavenging road junction (45) of one about the symmetry of described cylinder body (44), each symmetrically about each ground be provided with the wedge turbulent flow and return and alter sheet (46), its main body is that pressure angle approach to equate a section by the logarithmic spiral of logarithmic differentiation equation, utilize the equal feature of logarithmic spiral tool pressure angle of higher mathematics, make the sheet of adding have a section of logarithmic spiral, then gush thereon mixed air-flow just easily steadily, block waste gas and return and alter in order to reduce discharging in order to utilize equal pressure angle to produce turbulent flow at place, scavenging road junction;

Get scavenging road junction logarithmic differentiation equation turbulent flow and return and alter sheet and fall row's two and rush a section of petrolic described main body,

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

If polar equation ρ=ρ (θ) equates because wanting pressure angle λ, so tg λ=constant everywhere, make tg λ=k,

By pressure angle formula tg λ=ρ '/ρ,

ρ '/ρ=k is just arranged,

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

Find the solution d ρ/d θ=k ρ, both sides integration behind the variables separation:

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

Inρ＝kθ+C，

Namely:

ρ＝Ae＝e.e＝Ae

Adopt PRO/ENGINEER WILDFIRE 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＝1og(10*t+0.0001)

Make logarithmic curve;

Follow again, adopt rotation, merge, the instructions such as materialization, and with the workpiece assembling and merge, get final product modeling;

Use again described equation and the modeling of PRO/ENGINEER WILDFIRE institute, input CNC machining center, with CIMATRO or MASTCAM, the punching block of superzapping cast aluminium alloy, or use milling machine, planer and electrical spark working work are auxiliary; When using electric discharge machining, with described equation input CNC machining center, then to make first the tungsten copper electrode, with the lathe that the three-dimensional rotation head is arranged, produce in batches with die casting machine again; Again machining; Be welded on the scavenging road junction with other sheet of system, also available.

Logarithmic differentiation equation turbulent flow in a kind of scavenging road junction returns alters sheet and falls row's two and rush petrol engine, has an unexpected effect especially.Former common discharge value is 60-70, does not reach 50 numbers up to standard; What add two auxiliary shirt rims is 49, arrives reluctantly; And be now 39.9! Another kind of embodiment, logarithmic differentiation equation turbulent flow in scavenging road junction returns alters sheet and falls row's two and rush petrol engine

Two rush petrol engine testing conditions and data:

The emissions data that under above-mentioned testing conditions, adds the motor of two auxiliary shirt rims:

Value often is taken as the discharge value of hydrocarbon at last, and mark one is 50, and adding two auxiliary shirt rims just can be by up to standard; Alter two of sheet reduction discharging for turbulent time with scavenging road junction wedge and rush petrol engine, the discharge value of hydrocarbon is 39.93.

Thisly alter sheet and reduce two of discharging and rush on the petrolic basis further improved scavenging road junction logarithmic differentiation equation turbulent flow and return and alter sheet and fall row's two and rush petrol engine returning with scavenging road junction wedge turbulent flow, put into practice for many years and find out, it also is the crystallization of domestic and foreign experience, larger in the hope of tolerance and form and position tolerance surplus, safety coefficient is large like this, waster is few, and this rushes petrolic reduction of discharging up to standard in enormous quantities two is outstanding contributions.If it is better that effect is worked as in multiple improvement integrated application: the improvement such as the multiple fixed electrode that contain multiple spark plug add interior induction reactance, change outer calibration joiner, add the shell radiating fin, establish activity and fine motion electrode; The collocation of firing chamber and various ignition mechanisms contains the function wave firing chamber and with the adaptive function wave firing chamber of Parabolic convex-concave; Add two auxiliary shirt rims in the piston skirt; Scavenging arrangement at cylinder body; Usefulness and the prospect of multiple improvement integrated application are had an optimistic view of.

Because scavenging road junction logarithmic differentiation equation turbulent flow returns and alters sheet and fall row's two and rush petrol engine, contain 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) be two rush petrolic about containing along Central Symmetry ground on the cylinder chamber of dress piston the cylinder body (44) at one scavenging road junction (45) respectively, it is characterized in that: on each scavenging road junction (45) of one about the symmetry of described cylinder body (44), each symmetrically about each ground be provided with the wedge turbulent flow and return and alter sheet (46), its main body is that pressure angle approach to equate a section by the logarithmic spiral of logarithmic differentiation equation, utilize the equal feature of logarithmic spiral tool pressure angle of higher mathematics, make the sheet of adding have a section of logarithmic spiral, then gush thereon mixed air-flow just easily steadily, favourablely utilize equal pressure angle to produce turbulent flow to block waste gas and return and alter in order to reduce discharging at place, scavenging road junction;

Get scavenging road junction logarithmic differentiation equation turbulent flow and return and alter sheet and fall row's two and rush a section of petrolic described main body,

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

If polar equation ρ=ρ (θ) equates because wanting pressure angle λ, so tg λ=constant everywhere, make tg λ=k,

By pressure angle formula tg λ=ρ '/ρ,

ρ '/ρ=k is just arranged,

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

Find the solution d ρ/d θ=k ρ, both sides integration behind the variables separation:

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

Inρ＝kθ+C，

Namely:

ρ＝Ae＝e.e＝Ae

Adopt PRO/ENGINEER WILDFIRE 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;

Follow again, adopt rotation, merge, instructions such as materialization, and with the workpiece assembling and merge, get final product modeling, and batch produce.

Use again described equation and the modeling of PRO/ENGINEER WILDFIRE institute, input CNC machining center, with CIMATRO or MASTCAM, the punching block of superzapping cast aluminium alloy, or use milling machine, planer and electrical spark working work are auxiliary; When using electric discharge machining, with described equation input CNC machining center, then to make first the tungsten copper electrode, with the lathe that the three-dimensional rotation head is arranged, produce in batches with die casting machine again; Again machining; Be welded on the scavenging road junction with other sheet of system, also available.

Alter sheet and fall row's two and rush petrol engine because further improved described a kind of scavenging road junction logarithmic differentiation equation turbulent flow returns, it is characterized in that: described wedge turbulent flow returns alters the side of outlet of the scavenging air belt of pressing close to piston that closes on lower dead center of bottom of below that sheet (46) is located at the scavenging road junction (45) of cylinder body, one section of its tool logarithmic spiral is therefore be beneficial to steadily and discharging.

Alter sheet and fall row's two and rush petrol engine because further improved described a kind of scavenging road junction logarithmic differentiation equation turbulent flow returns, it is characterized in that: described wedge turbulent flow returns alters sheet (46) and comprises the wedge turbulent flow and go back to the scavenging road junction (47) of altering sheet, wedge (48), wedge turbulent flow that the wedge turbulent flow goes back to the logical scavenging road junction of altering sheet and return returning of the logical scavenging road junction of altering sheet and alter the turbulent shield (50) that grid (49), wedge turbulent flow go back to the logical scavenging road junction of altering sheet, thus all one section of the tool logarithmic spiral be beneficial to steadily and discharging.

Alter sheet and fall row's two and rush petrol engine because further improved described a kind of scavenging road junction logarithmic differentiation equation turbulent flow returns, it is characterized in that: described wedge is altered sheet (46) turbulent time and slightly is inclined wedge-shaped, the large end of described inclined wedge-shaped is connected to side of the outlet of the scavenging air belt of pressing close to piston that closes on lower dead center of the bottom of below at the scavenging road junction (45) of cylinder body, therefore a section of its tool logarithmic spiral is beneficial to steadily and discharging.

Alter sheet and fall row's two and rush petrol engine because further improved described a kind of scavenging road junction logarithmic differentiation equation turbulent flow returns, it is characterized in that: described wedge turbulent flow returns alters wedge turbulent flow that sheet (46) comprises and goes 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 to say the wedge turbulent flow return alter sheet (46) thus a section of its tool logarithmic spiral of small end of inclined wedge-shaped be beneficial to steadily and discharging.

Alter sheet and fall row's two and rush petrol engine because further improved described a kind of scavenging road junction logarithmic differentiation equation turbulent flow returns, it is characterized in that: described wedge turbulent flow return alter wedge (48) that described wedge turbulent flow that sheet (46) comprises goes back to the logical scavenging road junction of altering sheet be located at the wedge turbulent flow return alter the inboard of sheet (46) and with the bottom connection of the below at the scavenging road junction (45) of cylinder body, therefore a section of its tool logarithmic spiral of described inboard is beneficial to steadily and discharging.

Alter sheet and fall row's two and rush petrol engine because further improved described a kind of scavenging road junction logarithmic differentiation equation turbulent flow returns, it is characterized in that: described wedge turbulent flow returns alters described wedge turbulent flow that sheet (46) comprises and returns returning of the logical scavenging road junction of altering sheet and alter grid (49) and be located at the intersection of a side of outlet that the wedge turbulent flow returns the scavenging air belt at the scavenging road junction (45) of altering sheet and cylinder body, therefore a section of its tool logarithmic spiral is beneficial to steadily and discharges.

Alter sheet and fall row's two and rush petrol engine because further improved described a kind of scavenging road junction logarithmic differentiation equation turbulent flow returns, it is characterized in that: described wedge turbulent flow returns alters described wedge turbulent flow that sheet (46) comprises and returns returning of the logical scavenging road junction of altering sheet and alter grid (49) and be located at the chamfering place of a side of outlet that the wedge turbulent flow returns the scavenging air belt at the scavenging road junction (45) of altering sheet and cylinder body, therefore a section of its tool logarithmic spiral is beneficial to steadily and discharges.

Alter sheet and fall row's two and rush petrol engine because further improved described a kind of scavenging road junction logarithmic differentiation equation turbulent flow returns, it is characterized in that: described wedge turbulent flow returns alters described wedge turbulent flow that sheet (46) comprises and returns returning of the logical scavenging road junction of altering sheet and alter grid (49) and be located at the rounding place of a side of outlet that the wedge turbulent flow returns the scavenging air belt at the scavenging road junction (45) of altering sheet and cylinder body, therefore one section of its tool logarithmic spiral is beneficial to steadily and discharging.

Alter sheet and fall row's two and rush petrol engine because further improved described a kind of scavenging road junction logarithmic differentiation equation turbulent flow returns, it is characterized in that: described wedge turbulent flow return alter sheet (46) above be provided with the turbulent shield (50) that the wedge turbulent flow goes back to the logical scavenging road junction of altering sheet, the one end returns and alters sheet and link to each other with the chamfering place that a side of the outlet of the scavenging air belt at the scavenging road junction (45) of cylinder body intersects with being located at wedge turbulent flow, and its other end and wedge turbulent flow time are altered the small end that the top of sheet that is to say with wedge is altered the inclined wedge-shaped of sheet (46) for turbulent time and linked to each other; Therefore and a section of top its tool logarithmic spiral of described turbulent shield is beneficial to steadily and discharging.

Claims (10)

1. scavenging road junction logarithmic differentiation equation turbulent flow returns and alters sheet and fall row's two and rush petrol engine, contain 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) be two rush petrolic about containing along Central Symmetry ground on the cylinder chamber of dress piston the cylinder body (44) at one scavenging road junction (45) respectively, it is characterized in that: on each scavenging road junction (45) of one about the symmetry of described cylinder body (44), each symmetrically about each ground be provided with the wedge turbulent flow and return and alter sheet (46), its main body is that pressure angle approach to equate a section by the logarithmic spiral of logarithmic differentiation equation, utilize the equal feature of logarithmic spiral tool pressure angle of higher mathematics, make the sheet of adding have a section of logarithmic spiral, then gush thereon mixed air-flow just easily steadily, block waste gas and return and alter in order to reduce discharging in order to utilize equal pressure angle to produce turbulent flow at place, scavenging road junction;

Get scavenging road junction logarithmic differentiation equation turbulent flow and return and alter sheet and fall row's two and rush a section of petrolic described main body,

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

If polar equation ρ=ρ (θ) equates because wanting pressure angle λ, so tg λ=constant everywhere, make tg λ=k,

By pressure angle formula tg λ=ρ '/ρ,

ρ '/ρ=k is just arranged,

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

Find the solution d ρ/d θ=k ρ, both sides integration behind the variables separation:

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

Inρ＝kθ+C，

Namely:

ρ＝Ae＝e.e＝Ae

Adopt PRO/ENGINEER WILDFIRE 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;

Follow again, adopt rotation, merge, the instructions such as materialization, and with the workpiece assembling and merge, get final product modeling;

Use again described equation and the modeling of PRO/ENGINEER WILDFIRE institute, input CNC machining center, with CIMATRO or MASTCAM, the punching block of superzapping cast aluminium alloy, or use milling machine, planer and electrical spark working work are auxiliary; When using electric discharge machining, with described equation input CNC machining center, then to make first the tungsten copper electrode, with the lathe that the three-dimensional rotation head is arranged, produce in batches with die casting machine again; Again machining; Be welded on the scavenging road junction with other sheet of system, also available.

2. logarithmic differentiation equation turbulent flow in a kind of scavenging according to claim 1 road junction returns and alters sheet and fall row's two and rush petrol engine, it is characterized in that: described wedge turbulent flow returns alters the side of outlet of the scavenging air belt of pressing close to piston that closes on lower dead center of bottom of below that sheet (46) is located at the scavenging road junction (45) of cylinder body, a section of its tool logarithmic spiral.

3. logarithmic differentiation equation turbulent flow in a kind of scavenging according to claim 1 road junction returns and alters sheet and fall row's two and rush petrol engine, it is characterized in that: described wedge turbulent flow returns alters sheet (46) and comprises the wedge turbulent flow and go back to the scavenging road junction (47) of altering sheet, wedge (48), wedge turbulent flow that the wedge turbulent flow goes back to the logical scavenging road junction of altering sheet and return returning of the logical scavenging road junction of altering sheet and alter the turbulent shield (50) that grid (49), wedge turbulent flow go back to the logical scavenging road junction of altering sheet, all one section of the tool logarithmic spiral.

4. logarithmic differentiation equation turbulent flow in a kind of scavenging according to claim 1 road junction returns and alters sheet and fall row's two and rush petrol engine, it is characterized in that: described wedge is altered sheet (46) turbulent time and slightly is inclined wedge-shaped, the large end of described inclined wedge-shaped is connected to side of the outlet of the scavenging air belt of pressing close to piston that closes on lower dead center of the bottom of below at the scavenging road junction (45) of cylinder body, a section of its tool logarithmic spiral.

5. logarithmic differentiation equation turbulent flow in a kind of scavenging according to claim 1 road junction returns and alters sheet and fall row's two and rush petrol engine, it is characterized in that: described wedge turbulent flow returns alters wedge turbulent flow that sheet (46) comprises and goes 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 to say a section of its tool logarithmic spiral of small end that returns the inclined wedge-shaped of altering sheet (46) at the wedge turbulent flow.

6. logarithmic differentiation equation turbulent flow in a kind of scavenging according to claim 1 road junction returns and alters sheet and fall row's two and rush petrol engine, it is characterized in that: described wedge turbulent flow return alter wedge (48) that described wedge turbulent flow that sheet (46) comprises goes back to the logical scavenging road junction of altering sheet be located at the wedge turbulent flow return alter the inboard of sheet (46) and with the bottom connection of the below at the scavenging road junction (45) of cylinder body, a section of its tool logarithmic spiral of described inboard.

7. logarithmic differentiation equation turbulent flow in a kind of scavenging according to claim 1 road junction returns and alters sheet and fall row's two and rush petrol engine, it is characterized in that: described wedge turbulent flow returns alters described wedge turbulent flow that sheet (46) comprises and returns returning of the logical scavenging road junction of altering sheet and alter grid (49) and be located at the intersection of a side of outlet that the wedge turbulent flow returns the scavenging air belt at the scavenging road junction (45) of altering sheet and cylinder body, a section of its tool logarithmic spiral.

8. logarithmic differentiation equation turbulent flow in a kind of scavenging according to claim 1 road junction returns and alters sheet and fall row's two and rush petrol engine, it is characterized in that: described wedge turbulent flow returns alters described wedge turbulent flow that sheet (46) comprises and returns returning of the logical scavenging road junction of altering sheet and alter grid (49) and be located at the chamfering place of a side of outlet that the wedge turbulent flow returns the scavenging air belt at the scavenging road junction (45) of altering sheet and cylinder body, a section of its tool logarithmic spiral.

9. logarithmic differentiation equation turbulent flow in a kind of scavenging according to claim 1 road junction returns and alters sheet and fall row's two and rush petrol engine, it is characterized in that: described wedge turbulent flow returns alters described wedge turbulent flow that sheet (46) comprises and returns returning of the logical scavenging road junction of altering sheet and alter grid (49) and be located at the rounding place of a side of outlet that the wedge turbulent flow returns the scavenging air belt at the scavenging road junction (45) of altering sheet and cylinder body,, a section of its tool logarithmic spiral.

10. logarithmic differentiation equation turbulent flow in a kind of scavenging according to claim 1 road junction returns and alters sheet and fall row's two and rush petrol engine, it is characterized in that: described wedge turbulent flow return alter sheet (46) above be provided with the turbulent shield (50) that the wedge turbulent flow goes back to the logical scavenging road junction of altering sheet, the one end returns and alters sheet and link to each other with the chamfering place that a side of the outlet of the scavenging air belt at the scavenging road junction (45) of cylinder body intersects with being located at wedge turbulent flow, and its other end and wedge turbulent flow time are altered the small end that the top of sheet that is to say with wedge is altered the inclined wedge-shaped of sheet (46) for turbulent time and linked to each other; And a section of top its tool logarithmic spiral of described turbulent shield.

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