CN201236744Y

CN201236744Y - Two-stroke horizontal contraposition dual-spindle engine

Info

Publication number: CN201236744Y
Application number: CNU2008201127565U
Authority: CN
Inventors: 王玉明
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-16
Filing date: 2008-05-16
Publication date: 2009-05-13
Anticipated expiration: 2018-05-16

Abstract

The utility model provides a two-stroke horizontal opposite-positioned double-axles engine, belongs to internal combustion engine field, and is characterized in that the whole engine is square; a cylinder block and a crankcase are cast into a whole; the straight reciprocating motion in non-contact with a cylinder wall of the ceramic pistons in two horizontal opposite-positioned air cylinder groups is effectively transformed to the rotating motion of a crankshaft by a ring-shaped sliding crank; the ceramic pistons output power after being intensively unified by a chain belt gear transmission mechanism which is arranged at the tail end of the crankshaft; a plurality of novel anti-attrition air outlets and air inlets are formed on the upper and the lower sides of the cylinder liner of each cylinder; two rotary exhaust valves and exhaust superchargers which are in coaxial series connection and synchronized operation are arranged on the lower part of the middle part of a cylinder block; and fuel is supplied by a direct jet fuel oil system in an electrical controlled cylinder. The double-axles engine which integrates the advantages of the prior art and is innovatively improved has the advantages that the heat efficiency is improved; the wear is reduced; the emission is reduced; and the power running torque is enlarged, and added with the application of the movement gadgets in each ceramic cylinder, the double-axles engine further has the advantages that the engine service life is effectively prolonged.

Description

A kind of two-stroke flat opposed twin-spool engine

1, technical field:

A kind of two-stroke flat opposed twin-spool engine belongs to field of internal combustion engine.

2, background technique:

Two kinds of traditional journey motors have simple in structurely, get angry the frequency height, and advantage stably turns round; Defectives such as but charging efficiency is low, and lubricant oil is mixed burning, and discharging is high, and wearing and tearing are heavy, and working life is short are restricting further developing of two stroke engine for a long time.New technology in current related domain, neotectonics, the continuing to bring out of new material, as: high pressure common rail electric-controlled fuel sprays, supercharging or two supercharging; Rotary valve, moving parts in annular slip crank and the flat opposed, insulating ceramic material system cylinder, the release of electronic sensor, detection, regulation and control components and parts and ECU (Electrical Control Unit) etc. is used, for favourable situation has been started in the technical development and the progress of two stroke engine.

External a kind of two-stroke flat opposed twin-spool engine, overall appearance is square, and horizontal is a cylinder block the centre, and its left and right sides is a crankcase cast in block with it; The bent axle that is arranged in the casing links to each other with the piston crank mechanism of this side respectively; Two piston flat opposeds that the band piston ring is housed in the same cylinder form the firing chamber when moving to top dead center in opposite directions; It adopts double-piston pump gas, the distribution of many gas ports and cross flow scavenging; Fuel is sprayed by nozzle; Double-piston is accepted work done kinetic energy simultaneously; In the rear end of cylinder block, be provided with the driving mechanism that links to each other with the both sides bent axle, power is come together in output shaft, unified output.(because data very little, can't deeply be introduced with absurd adding and appraise through discussion).From the graphic structure analysis, its external form is flat, and is simple and compact for structure, is beneficial to assembling; Double-piston obtains closing of two-way kinetic energy that fuel volumetric growth produces simultaneously, must improve the thermal efficiency, increase the output of power and torque.But this structure but can't be eliminated the eccentric wear that caused by the earth gravity effect and the wearing and tearing of piston ring and square gas port; For being lubricated, the cylinder moving parts then cause lubricant oil to mix burning unavoidably; Porting can't in time be closed and also can be caused unburned mixture to leak and sizable charge loss; And technological deficiencies such as high, that burnup is high, working life is short are discharged in existence.

Annotate: prototype data mentioned above is stated from the 71st page of " friend of automobile " magazine the 20th phase in the 2004th.Technical data that relates to hereinafter and structure content are mainly won the relevant article content from professional technique books such as " Hyundai Motor new technology ", " following automotive engineerings ".

3, summary of the invention:

The utility model will solve following technical problem: avoid the eccentric wear of piston and cylinder wall and the wearing and tearing and the lubricant oil of piston ring and square gas port to mix burning; Prevent that unburned mixture from leaking and waste gas flows backwards, improve charging efficiency, improve burning quality, reduce discharging, reduce burnup, add high-power and moment of torsion, and then prolong motor working life.

I am according to the understanding and the experimental study of physical basis knowledge, in conjunction with the current new technology structure in related domain, and new material, new product, the multinomial advanced technology that is suitable for this machine structural feature of integrated fusion is improved innovation and is used, and the designing technique solution is as follows:

With diesel oil is fuel; This motor appearance integral is square, and cylinder block (2) is cast as one with crankcase (1); In the high crankcase (1) that rises in both sides, annular slip crank (3) assembly that installs bent axle (44) and be connected with this side bent axle rod shaft neck (17); Horizontally in each cylinder barrel of middle cylinders body (2), stud with the synthetic gas cylinder sleeve, what inlayed both sides is the cast iron cylinder cover (5) that the band air chamber is imported and exported, and what inlayed the centre is to have two ceramic cylinder liner (6) that make up gas ports (31), two relief openings (23), a nozzle opening; Two groups of front end cast solid, skirt sections with circular connecting rod (20) are equipped with that the top of Ceramic piston (7) band firing chamber of twice pottery plug rings (48) is relative, and horizontal is in same cylinder, and skirt extremity is provided with upper and lower two air distribution ports; Circular connecting rod (20) rear end penetrates this side crankcase (1) through being arranged in branch locular wall (8) sliding bearing and oil sealing hole between air chamber and the crankcase (1), assemble circular connecting rod back seat (9) and seat pin after, refill to annular slip crank (3) front end that is located at the band sliding guide groove (49) on the crankcase bottom slide guide (27); Packed into ceramic slider (18), the annular slip crank (3) of slide plate (19) installs on this cylinder rod axle journal (17) by open rearward end place cover, and installs postnotum (4) additional; Be located at the top of cylinder separately of on the ceramic cylinder liner (6) two combination gas ports (31) Ceramic piston end face front side when being positioned at the cylinder Ceramic piston and moving to lower dead center (back point) relatively backward, the half garden gas port on its petal gas port both sides communicates with the intake duct of band air throttle (13), and middle outer ellipse interior circle gas port communicates with the helical intake (11) of band taper; And intake duct (13) and helical intake (11) are to be divided into by the external main airway (15) that the air chamber air outlet, both sides (10) on the cylinder block (2) picks out; Set air throttle (13) is for dividing the mechanical linkage of side connecting rod on the intake duct, and concentrate both sides, and node is automatically controlled; Be arranged in the air inlet of air chamber of cylinder block (2) bottom leaf valve (21) is housed, it links to each other with gas cylinder (26) and air-strainer.Two ellipse garden shape relief openings (23) are arranged on 40 ° of-90 ° of cylinders that (crank angle) located middle part lower position after this side piston top dead center; Stud with ceramic seal circle (37) in relevant position, cylinder block (2) bottom (relief opening), two ceramic rotating exhaust valves (24) and cylinder be 90 ° of right angles, by the supporting of multiple tracks tile bearing, side by side be suspended at two row ceramic seal circles (37) and with cylinder block exhaust valve spindle bearing cast in block on; Conjuncted exhaust valve cap (25) with rotating exhaust valve (24) valve seal no-float is packaged in two rotating exhaust valves (24) in the lid; Outlet valve timing sprocket (39) is equipped with at rotating exhaust valve (24) rear portion, joins through a chain and outlet valve drive sprocket (32), drives two rotating exhaust valves whiles and bent axle (44) constant speed synchronous operation; With tandem shafts the driven air-discharging and supercharging device of axial flow (47) is housed on the end flange land of rotating exhaust valve (24) back, join rolling bearing and seal ring and increase device seat (41) on its port outer tube wall of giving vent to anger and be tightly connected movingly, discharge manifold (38) and the fixed seal connection of increase device seat (41).Cylinder block (2) both sides, rear portion bent axle bead device has driving mechanism, a side device bent axle chain belt wheel (29) wherein, through chain belt (30) and chain belt follower (33), this side transmission of power is arrived output shaft (34), simultaneously, chain belt follower (33) also drives outlet valve drive sprocket (32) the constant speed operation of often nibbling with its gear; The crankshaft gear (36) that tape starting gear ring (35) are housed on opposite side bent axle (44) bead is often nibbled with output shaft (34) gear, transmits this side bent axle power to output shaft (34); Compiling motor bilateral bent axle power concentration thus outwards transmits.

This motor adopts the auxiliary system that is fit to this machine structure in the prior art, for this machine provides fuel, lubricated, cooling system and sensing, detection, control electronic unit.Wherein: fuel supply adopts high pressure common rail electric-controlled diesel injection system and the short oil sprayer of delay period to carry out inner cylinder direct injection; Lubrication system adopts pressure fuel pump oil duct, spray, the infiltration form that combines, to bent axle (4), divide locular wall (8) sliding bearing, circular connecting rod (20), rotating exhaust valve (24) and the annular slip crank of air-discharging and supercharging device (47) (3), driving mechanism bearing (28) to carry out composite lubricated; Lubricated oil tray is located at rear end, cylinder block bottom; The pump circulation cooling system that cooling adopts water tank, water pump, fan etc. to form; Employing can provide the electrical apparatus element and the control unit of this machine sensing, detection, regulation and control demand; The supporting facility parts are arranged on motor head top, are driven by both sides bent axle (44).

The beneficial effect of this machine: by prior art is selected the superior integrated innovation and improvement; When having kept prototype technology speciality and advantage, overcome eccentric wear, alleviated wearing and tearing, avoided mixing burning in the lubricated oil cylinder, improved charging efficiency, improve combustion performance, reduced discharging, reduced burnup, increase power and moment of torsion, prolonged working life; And the polynary power transmission structure that makes new advances of developing.

4, description of drawings

Fig. 1 two-stroke flat opposed twin-spool engine broken section structural representation

Fig. 2 two-stroke flat opposed twin-spool engine broken section overall structure diagrammatic top view

Fig. 3 two-stroke flat opposed twin-spool engine annular slip crank piston crank mechanism and synthetic gas cylinder sleeve parts drawing

Fig. 4 two-stroke flat opposed twin-spool engine rotating exhaust valve and air-discharging and supercharging general ability portion sectional structure schematic representation

：1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22-23-24-25-26-27-28-29-30-31-32-33-34-35-36-37-38-39-40-41-42-43-44-45-46-47-48-49-50-51-52-。

5, specific embodiments ():

The utility model two-stroke flat opposed twin-spool engine is a multi-cylinder motor arranged side by side; With diesel oil is fuel; Motor integral body is spill; Middle cylinder block (2) is cast into one with the crankcase (1) of both sides; Outside middle this side of the removal apparatus bent axle (44) of crankcase (1), annular slip crank (3) assembly that returning apparatus links to each other with this side rod journal (17).In the horizontal cylinder of this machine level, every cylinder studs with 3 stops synthetic gas cylinder sleeve, and intermediate section is ceramic cylinder liner (6), are cast iron cylinder cover (5) by both sides; Cast whole Ceramic piston (7) with circular connecting rod (20) front end for two, relative with the top of shallow square firing chamber (22), be horizontally set in the same cylinder; Branch locular wall (8) sliding bearing center and the oil sealing hole of circular connecting rod (20) rear end through being arranged between air chamber (50) and the crankcase (10) penetrates crankcase (1), after loading onto circular connecting rod base (9) and dividing locular wall (8), be connected to the slide guide (27) that is positioned at crankcase bottom and is provided with, and sliding guide groove (49) on, pack into behind the rod journal by annular slip crank (3) open rearward end, add the postnotum that cranks (4); The trapezoidal bucket of the twice face Ceramic piston ring (48) of dress band locating stud in the twice piston ring groove on the Ceramic piston skirt section, both sides, lower end, skirt section are provided with scavenge port; In ceramic cylinder (6), be provided with novel petal combination gas gas port (31) and oval relief opening (23); Two combination gas ports (31) are located at the upside of the piston head position cylinder of piston when lower dead center (back point), and the ellipse in the middle of it (being circular in gas port so that produce eddy current) gas port links to each other with the intake duct of band air throttle (13); And helical intake (11) and intake duct (13) are to be divided into two by the peripheral hardware main airway (15) that is positioned at cylinder block top that air chamber (50) picks out to insert; Helical intake (11) and intake duct respectively account for 40% and 60% of peripheral hardware main airway air mass flow respectively; Air throttle (13) is the mechanical interlock of linkage rod (14), the fly valve that the assembly place is automatically controlled; It communicates with gas cylinder (26) gas port on the air inlet of air chamber at crankcase edge, (2) both sides, bottom leaf valve (21) to be housed in the cylinder.Two oval relief openings (23) are arranged on the cylinder middle part lower position of this side cylinder piston top dead center (preceding point) 40 degree-90 degree (stride 50 write music Shaft angle), stud with ceramic seal circle (31) (two in every cylinder) in the air valve seat of relevant position, cylinder block bottom (relief opening); Two ceramic rotating exhaust valves (24) and cylinder barrel are 90 degree right angles (both horizontal), by 5 road tile bearings supportings, be suspended at side by side two row ceramic seal circles (37) and with the exhaust valve spindle bearing (52) of cylinder block whole cast on; The outlet valve gas port (51) that is provided with on the circle hemisphere rotating exhaust valve body can continue unlatching 105 degree (crank angle) and carry out exhaust; Conjuncted exhaust valve cap (25) that cooperates with valve seal simultaneously with two rotating exhaust valves (24) overall package in valve gap; Outlet valve timing sprocket (39) is equipped with at rotating exhaust valve (24) rear portion, is joined by a chain and outlet valve drive sprocket (32), drives two rotating exhaust valves (24) and bent axle (44) constant speed operation synchronously simultaneously; The driven air-discharging and supercharging device of coaxial series arrangement axial flow (47) on outlet valve timing sprocket (39) the flange land afterwards, air-discharging and supercharging device impeller (40) root and shell constitute junctor, and inner edge is combined into streamlined at pressurized machine axle core place; Equipped rolling bearing and seal ring are encapsulated on the pressurized machine seat (41) movingly on the collapsible tube outer wall of air-discharging and supercharging device (47) air outlet, and pressurized machine seat (41) is tightly connected with relief opening menifold (38) stationary fit; Cylinder block (2) rearward end bent axle bead place device driving mechanism, wherein a side device bent axle chain belt wheel (29) is passed to output shaft (34) through chain belt (30) and chain belt follower (33) with the frequent grinding tooth wheel of this side bent axle (44) power, simultaneously, chain belt follower (33) outlet valve drive sprocket (32) driven rotary outlet valve (24) running that this side bent axle (44) power is often nibbled; The crankshaft gear (36) of opposite side device tape starting gear ring (35) is outwards exported the power concentration unification with output shaft gear (34).

This two-stroke flat opposed twin-spool engine adopts the fuel that is fit to this machine structural feature in the prior art, lubricated, cooling, the ripe practical technique of auxiliary system such as automatically controlled, wherein mainly contains: the short empty chamber oil nozzle of nothing (16) of high pressure common rail electric-controlled diesel oil direct-injection system and the delay period supply system that acts as a fuel; Adopt lubricant oil gear oil pump and supporting lubrication system that rod journal (17), annular slip crank (3), circular connecting rod (20) and sliding bearing, rotating exhaust valve (24) and air-discharging and supercharging device (47) bearing etc. are carried out the pressure oil duct, spray, combined types such as infiltration are lubricated, and lubricated oil tray is located at the driving mechanism place, rear end of cylinder bottom; The pump circulation cooling system that cooling adopts parts such as water pump, radiator, fan to form carries out the emphasis cooling; Employing can provide the electrical equipment executive component and the ECU (Electrical Control Unit) of the required sensing of this machine, detection, regulation and controlling of information, accurately regulates and control.The various supporting facility of this machine are arranged on the motor front portion, provide power by both sides crankshaft gear and belt pulley.

Specific embodiments (two):

The technical program is carried out corresponding techniques adjustment and change to partial correlation structure and parts, thereby is designed the present embodiment as platform with " two-stroke flat opposed twin-spool engine " in aforementioned " specific embodiments (one) ".Its major technique measure is as follows;

1, uses gasoline for the fuel; Adopt high pressure common rail electric-controlled gasoline injection system and the diplopore empty chamber oil sprayer of two-way nothing (16) to carry out fuel supply; Injection advance angle is preceding 40 degree of top dead center (preceding point).

2, go up dress only together with the trapezoidal bucket face Ceramic piston ring (48) of locating stud (46) at Ceramic piston (7);

3, change the different demands of petrol engine according to two-stroke flat opposed twin-spool engine into by diesel engine, suitably adjust shallow square firing chamber (22) volume and reduce compression ratio; To adapt to the best demand of petrol engine.

4, prolong the cross section miter angle on every cylinder injector (16) both sides cylinder block (2) top, divide the side device two multi-gap spark plugs, and simultaneous ignition; Employing is applicable to the dual ignition plug high-frequency electronic ignition system that this machine is provided with.

5, cancellation cooling water recirculation system and associated components; Set up double-cooling fan; The conjuncted exhaust valve cap of aluminum alloy (25) adds radiating fin, and the gas gap of leaving a blank between peripheral hardware main airway and cylinder block is with thermal insulation; Strengthen the natural ventilation cooling capacity and the fan in the high hot spot of emphasis high temperature and force cooling capacity.Cancellation cooling waterpump and other cooling water recirculation system components and parts.

6,, change variable single, double axle output into the double-shaft power single shaft output form of motor rear portion driving mechanism; Both located additional the setting and the controlled transfer device of break-make of loading outward, thereby realized the novel type of belt drive of the polynary output of compound transmission twin shaft at no-output axle one side bent axle chain belt wheel (29).

Annotate: the technical data of such scheme and parameter are reference value.

Claims

1, a kind of two-stroke flat opposed twin-spool engine, the middle cylinder block and the crankcase cast solid of both sides are square; In the horizontal cylinder of level, two groups of piston heads move in opposite directions, and piston links to each other with this side bent axle through connecting rod; Two groups of pistons are transferred to this side bent axle simultaneously with the function that work done produces, and compile the transmission of outwards loading of both sides bent axle power by the driving mechanism that is arranged on bent axle rear flange place; Distribution be by two pistons in same cylinder common pumping action and a plurality of gas port is collaborative finishes; At the parts facility of each auxiliary system of motor head part device, drive by front end two bent commentaries on classics gears and crank pulley; It is characterized in that: make fuel with diesel oil, in the crankcase (1) of motor both sides by projection, the annular slip crank (3) of setting links to each other with bent axle (44) axle journal; The synthetic cylinder sleeve of edge 3 stops in the cylinder barrel, both sides be bring into, the casting iron cylinder liner (5) of air outlet, intermediate section is the ceramic cylinder liner (6) that has a plurality of anti-attrition gas ports and a jet; In each cylinder with the twice Ceramic piston ring (48) of circular connecting rod (20) front end cast solid, the shallow firing chamber of end face band (22), skirt section assembling and positioning pin and relative, level run in opposite directions with two groups of Ceramic pistons (7) head of air distribution port; Circular connecting rod (20) rear end is divided from both sides respectively and is pierced in this side crankcase (1) locular wall (8) sliding bearing and the oil sealing center hole, behind equipped connecting rod back seat and the seat pin (9), be contained in annular slip crank (3) front end, annular is slided the spacing sliding guide groove (49) of crank (3) bottom by by dividing a locular wall side to be inserted in to be arranged on the slide guide (27) of crankcase (1) bottom, the annular slip crank (3) that to load onto slide block (18), slide plate (19) is again installed on this side rod journal (17) by the back opening sleeve, loads onto postnotum (4); Each ceramic cylinder liner (6) goes up in the set gas port two combination gas ports (31) and lays respectively at Ceramic piston (7) when moving to lower dead center backward mutually, two-piston top front end upper side position, their branch sides be linked in sequence helical intake (11) and the band air throttle (13) intake duct---external main airway (15)---air chamber air outlet (10); The both sides air chamber (50) of cylinder is to divide locular wall (8) to separate cylinder barrel and form between Ceramic piston (7) and crankcase (1) by both sides, and the air inlet of air chamber that leaf valve (21) is housed is connected to gas cylinder (26) and air-strainer; Be positioned at two oval relief openings (23) of ceramic cylinder liner (6) downside, be arranged at piston and come downwards to 40 °～90 ° CAPs by top dead center, and on the relevant position of relief opening (23) cylinder block of living in (2), stud with ceramic seal circle (37), two ceramic rotating exhaust valves (24) and cylinder block are that 90 ° of angles are horizontal, being suspended by multiple tracks tile bearing is fitted on the two row ceramic seal circles (37); A conjuncted exhaust valve cap (25) that cooperates with rotating exhaust valve (24) valve seal, with two rotating exhaust valves (24) overall package at cylinder block lower central place, outlet valve timing sprocket (39) device is in its rear end, link to each other driven rotary outlet valve (24) and bent axle (44) constant speed operation synchronously with outlet valve drive sprocket (32) and chain belt follower (33) through chain; Axial flow air-discharging and supercharging device (40) is equipped with tandem shafts in rotating exhaust valve (24) tail end, its rear end gas port place running in bearings and seal ring and pressurized machine seat (41) are tightly connected movingly, and pressurized machine seat (41) is connected with discharge manifold (38) rigid seal (stationary fit); Cylinder block (2) rear portion two bent axles (44) bead place is provided with driving mechanism; The one side is by bent axle chain belt wheel (29), and---output shaft gear (34) is linked in sequence chain belt (30)---chain belt follower (33)---; The crankshaft gear (36) of device tape starting gear ring (35) is often nibbled with output shaft gear (34) on opposite side bent axle (44) bead; So far, compile both sides bent axle (44) power, power and torque are gathered in unification.

2, two-stroke flat opposed twin-spool engine as claimed in claim 1, it is characterized in that: when two groups of Ceramic pistons (7) move to top dead center (preceding point) in opposite directions in the same cylinder, the square turbulence chamber of two shallow firing chambers of top square (22) one-tenth band capable of being combined guiding gutter.

3, two-stroke flat opposed twin-spool engine according to claim 1 is characterized in that: the equipped two Ceramic piston rings (48) in each Ceramic piston (7) skirt section are trapezoidal bucket face ring, wrong 180 ° mutually of two openings, and be 90 ° of right angle settings with oil injecting nozzle; Be fitted with the piston ring locating stud in the annular groove.

4, two-stroke flat opposed twin-spool engine according to claim 1, it is characterized in that: ceramic cylinder liner (6) length that is set in the cylinder is: when moving to lower dead center (back point) backward with two groups of Ceramic pistons (7) in the cylinder, the length (distance) between the second road Ceramic piston ring (48) of both sides adds 20mm; Cast iron cylinder cover (5) length is: this side cylinder pottery cylinder liner (6) edge synthesizes the total length of cylinder sleeve: cast iron cylinder cover+ceramic cylinder liner+cast iron cylinder cover to the length (distance) of dividing between locular wall (8) inboard.

5, two-stroke flat opposed twin-spool engine according to claim 1, it is characterized in that: the semicircle gas port in the both sides of three lobe shapes combination gas ports (31) links to each other with the intake duct of band air throttle (13), middle outer ellipse interior round gas port connects the cone screw air flue (11) with enhancing intake swirl and airspeed, and its two semicircle gas ports and ellipse outward interior circle gas port respectively account for 1/2 of cylinder intake air quantity.

6, two-stroke flat opposed twin-spool engine according to claim 1 is characterized in that: oval relief opening (23), three lobe shapes combination gas ports (31) are both the anti-attrition gas port; Its oval edges is along helping guiding Ceramic piston ring (48) not edge, the low smooth and easy operation of frictional loss.

7, two-stroke flat opposed twin-spool engine according to claim 1 is characterized in that: the keying of combination gas port (31) is controlled by Ceramic piston (7)-cooperations; The keying of relief opening (23) is by rotating exhaust valve (24) and chain and the gear matched control of ceramic-seal ring (37) under bent axle (44) drives; Combination gas port (31) is being opened when atdc walks to 145 ° (crank angle) after the piston work done, after close when walking to 215 ° of (down to up 35 ° of point) crank angles; Relief opening (23) is opened when atdc walks to 45 ° of crank angles when the piston work done, after close when walking to 150 ° of crank angles; Relief opening lags behind 5 ° of crank angles of descent of piston and opens; Combination gas port (31) has 5 ° of overlapping opening angles with relief opening (23).

8, two-stroke flat opposed twin-spool engine according to claim 1, it is characterized in that: when the spacing shockproof sliding guide groove (49) of annular slip crank (3) bottom assembles with the slide guide (27) that is located at crankcase (1) base plate, leave the suspension air clearance of 0.40mm.

9, as claim 1 or the flat opposed twin-spool engine of 8 described two baths, it is characterized in that: annular slip crank (3) slide block (18) slide plate (19) is through lubricant oil nozzle (12) it to be carried out intermittent shower by the connecting rod weighing apparatus iron oil duct that communicates with bent axle (44) axle journal oil duct to lubricate.

10, two-stroke flat opposed twin-spool engine according to claim 1 is characterized in that: when motor moved under the different load operating mode, it was 15:1～19:1 that air throttle (13) regulation and control keep the air fuel ratio scope of alkene combustion.

11, two-stroke flat opposed twin-spool engine according to claim 1, it is characterized in that: the injection advance angle of the high pressure common rail electric-controlled diesel injection system of fueling is 20 ° of budc; Oil spout is lighted a fire each cylinder in proper order for 1-2-4-3.