CN203308579U - Gasoline engine with deflection type crank - Google Patents
Gasoline engine with deflection type crank Download PDFInfo
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- CN203308579U CN203308579U CN2013202293188U CN201320229318U CN203308579U CN 203308579 U CN203308579 U CN 203308579U CN 2013202293188 U CN2013202293188 U CN 2013202293188U CN 201320229318 U CN201320229318 U CN 201320229318U CN 203308579 U CN203308579 U CN 203308579U
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Abstract
The utility model discloses a gasoline engine with a deflection type crank. The engine is a piston type engine, and comprises a cylinder, a piston, a connection rod and the crank. The central line of the crank is deviated from the perpendicular central line of the cylinder, and the deviation value is 9-12mm. Within the deviation range, lateral force on the piston in the acting stroke process can be effectively lowered, lateral force of the piston on the side face of the cylinder is reduced, and therefore consumed energy due to friction between the piston and the wall of the cylinder can be correspondingly reduced. Thermal efficiency of an internal combustion engine is improved, and the service life of the cylinder and the service life of the piston can be prolonged. Meanwhile, due to deviated arrangement of the crank, the stroke of the piston is increased and the acting time of the piston is prolonged, sufficient burning of fuels is facilitated, more useful work can be obtained under the same combustion condition, fuel economy is improved, and the overall performance of the engine is improved.
Description
Technical field
The utility model relates to the petrol engine field, particularly a kind of bent axle offset petrol engine.
Background technique
Petrol engine is the motor acted as a fuel with gasoline, and because gasoline viscosity is little, evaporation is fast, can gasoline be sprayed into to cylinder with gasoline injection system, after overcompression reaches certain temperature and pressure, uses spark ignitor, makes gas expansion for doing work.Bent axle is petrolic main rotary gadget, is petrolic power source, and itself and piston and connecting rod be common forms petrolic power-transmission system.
In prior art, petrolic bent axle round dot central position is positioned on the vertical center line of cylinder, crankshaft rotating makes connecting rod produce flexible symmetrical swinging arc, piston promotes back and forth operation in cylinder by connecting rod, in the piston expansion stroke, when crankshaft crank forwards 90 to while spending, bent axle moment of torsion and connecting rod inclination angle all are in maximum value, now can produce larger side direction horizontal component to piston, thereby cause piston group and connecting rod bearing and cylinder wall to produce larger friction, and then cause the loss of petrol engine integral power, and reduce the petrol engine fuel efficiency.
Therefore, need to improve petrolic, make motor can effectively reduce lateral force and the frictional force that acts on piston when acting, thereby improved the thermal efficiency of internal-combustion engine, and can extend the working life of cylinder and piston, improve the motor overall performance.
The model utility content
In view of this, the utility model provides a kind of bent axle offset petrol engine, makes motor can effectively reduce lateral force and the frictional force that acts on piston when acting, thereby has improved the thermal efficiency of internal-combustion engine, and can extend the working life of cylinder and piston, improve the motor overall performance.
Bent axle offset petrol engine of the present utility model, described motor is reciprocating engine, comprises cylinder, piston, connecting rod and bent axle, and described crankshaft axis b departs from described cylinder median vertical line a and arranges, and Offset is 9-12mm.
Further, described bent axle comprises main journal, connecting rod neck, crank and equilibrium block, described equilibrium block is set to four, the outside end face of described equilibrium block is the arc structure with the main journal coaxial line, between described arc structure radius R scope and petrol engine discharge capacity V, it is following corresponding relation, wherein arc structure radius R dimensional units is millimeter, and engine displacement V unit is for rising:
1.0≤V＜1.1,45≤R＜50;1.1≤V＜1.2,50≤R＜55;1.2≤V＜1.3,55≤R＜60;1.3≤V＜1.4,60≤R＜64;1.4≤V＜1.5,64≤R＜69;1.5≤V＜1.6,69≤R＜73；1.6≤V＜1.7，73≤R＜78；1.7≤V＜1.8，78≤R＜83；1.8≤V＜1.9，83≤R＜87；1.9≤V＜2.0，87≤R＜92；V=2.0，92≤R＜97。
Further, described piston-top surface caves inward and is provided with a bowl type flare pit, and the end face of described piston and piston circumference side are the flat-tope structure transition.
Further, described motor also is provided with constituent, and described constituent comprises water pump and the thermostat arranged with described water pump integral type, and impeller one end of described water pump is installed and is provided with thermostat base, and described thermostat is installed and is arranged at described thermostat base.
Further, described motor also is provided with lubrication system, comprises oil pump and sump strainer, and described oil pump coordinates with the direct-connected transmission of described bent axle.
Further, described sump strainer comprises fuel sucking pipe, filter screen and holder oil device, the oily device of described holder comprises cover body and is one-body molded and be used to holding in the palm oily ring structure holder oil boss, the taper type structure of described cover body for being increased gradually by oil inlet end to oil outlet end internal diameter with described cover body.
Further, described motor also comprises cylinder head assembly, described cylinder head assembly comprises cylinder head, oily rail, oil nozzle and cam pack, described cylinder head comprises the cylinder cap body and is arranged at the intrinsic intake duct of cylinder cap and air outlet flue, described oil nozzle and described oily rail all are installed on the air inlet side of described cylinder head, and described oil nozzle fixedly is communicated with described oily rail and its oil spout end stretches in described intake duct; Described intake duct and air outlet flue tilt to top with respect to the attachment face of described cylinder cap body respectively from inside to outside.
Further, the firing chamber face that described cylinder cap body lower end indent forms, described firing chamber face is spheric structure and is that four air valve structures are arranged, in edge, face top, described firing chamber, mind-set cylinder head intake and exhaust both sides form two plane of inclination, and on described two plane of inclination, apportion is provided with two inlet valve ports and two exhaust valve ports.
Further, described cylinder head assembly also comprises valve assembly, described valve assembly comprises intake valve and exhaust valve, described intake valve comprises intake valve sealed department, intake valve neck and intake valve bar, described exhaust valve comprises exhaust valve sealed department, exhaust valve neck and exhaust valve rod, described intake valve sealed department comprises annular sealing surface I and dish type conical surface I, between the diameter R1 of described annular sealing surface I and described engine displacement V, it is following corresponding relation, wherein the diameter R1 dimensional units of annular sealing surface I is millimeter, and engine displacement V unit is for rising:
1.0≤V＜1.1,17≤R1＜19；1.1≤V＜1.2，19≤R1＜21；1.2≤V＜1.3，21≤R1＜23；1.3≤V＜1.4，23≤R1＜24.5；1.4≤V＜1.5，24.5≤R1＜26；V=1.5，26≤R1≤27；
Described exhaust valve sealed department comprises annular sealing surface II and dish type conical surface II, between the diameter R2 of described annular sealing surface II and described engine displacement V, it is following corresponding relation, wherein the diameter R2 dimensional units of annular sealing surface II is millimeter, and engine displacement V unit is for rising:
1.0≤V＜1.1,15≤R1＜17；1.1≤V＜1.2，17≤R1＜18.5；1.2≤V＜1.3，18.5≤R1＜20；1.3≤V＜1.4，20≤R1＜21.5；1.4≤V＜1.5，21.5≤R1＜23；V=1.5，23≤R1≤24。
Further, described piston center line departs from described cylinder vertical center line 0.5-0.8mm setting.
The beneficial effects of the utility model: bent axle offset petrol engine of the present utility model, described crankshaft axis departs from the setting of described cylinder median vertical line, Offset is 9-12mm, in this biasing scope, in the time of can effectively reducing expansion stroke, act on the lateral force of piston, and then reduce piston to cylinder side lateral pressure, thereby make the energy consumed because of friction between piston and cylinder wall also can correspondingly reduce, not only improve the thermal efficiency of internal-combustion engine, can also extend the working life of cylinder and piston; Simultaneously, due to the biasing setting of bent axle, cause piston stroke to strengthen, the piston working application time extends, and is conducive to the abundant burning of fuel, under same combustion condition, can obtain more useful work, thereby improve fuel economy, improves the motor overall performance.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described.
Fig. 1 is the utility model structural representation;
Fig. 2 is bent axle bias structure schematic diagram;
Fig. 3 is the crankshaft structure schematic diagram;
Fig. 4 is that Fig. 3 E is to view;
Fig. 5 is the piston structure schematic diagram;
Fig. 6 is the water pump structure schematic diagram;
Fig. 7 is the sump strainer structural representation;
Fig. 8 is the cylinder head assembly generalized section;
Fig. 9 is the intake valve structural representation;
Figure 10 is the exhaust valve structure schematic diagram;
Figure 11 is Fig. 2 a-quadrant enlarged diagram.
Embodiment
Fig. 1 is the utility model structural representation, Fig. 2 is bent axle bias structure schematic diagram, Fig. 3 is the crankshaft structure schematic diagram, Fig. 4 is that Fig. 3 E is to view, Fig. 5 is the piston structure schematic diagram, Fig. 6 is the water pump structure schematic diagram, Fig. 7 is the sump strainer structural representation, Fig. 8 is the cylinder head assembly generalized section, Fig. 9 is the intake valve structural representation, Figure 10 is the exhaust valve structure schematic diagram, Figure 11 is Fig. 2 a-quadrant enlarged diagram, as shown in the figure: the bent axle offset petrol engine of the present embodiment, described motor is reciprocating engine, comprise cylinder 1, piston 2, connecting rod 3 and bent axle 4, described crankshaft axis b departs from described cylinder median vertical line a and arranges, Offset L is limited between 9-12mm, 9mm for example, 10mm, 11mm, 12mm, to obtain optimum effect, in the present embodiment, Offset L is 10mm, and this Offset can reduce the pressure of piston to the cylinder side effectively, and then the energy of reducing friction and consuming, and extends the working life of cylinder and piston.
In the present embodiment, described bent axle 4 comprises main journal 5, connecting rod neck 6, crank and equilibrium block 7, described equilibrium block is set to four, the outside end face of described equilibrium block 7 is the arc structure with the main journal coaxial line, between described arc structure radius R scope and petrol engine discharge capacity V, it is following corresponding relation, wherein arc structure radius R dimensional units is millimeter, engine displacement V unit is for rising, in form, the crankshaft counter balance arc structure radius R of the corresponding different range of each engine displacement, wherein each scope is three embodiments:
four equilibrium blocks are set on bent axle, with respect to each engine displacement, equilibrium block arc structure radius all has a controlled scope, according to this scope, can change according to the design to crankshaft counter balance of the design modification of motor self discharge capacity, can meet the dynamic balancing of bent axle, can make again the quality of equilibrium block drop to minimum, even the large-duty engine of 1.8l or 2.0l also can be in the situation that the requirement of this four equilibrium blocks bent axle capable of satisfying dynamic equilibrium, reach the light-weighted purpose of bent axle, avoid producing the waste of material, improve the performance of motor, fuel economy and reduction discharge, it is good that four equilibrium block bent axles of the present utility model also have a balanced ratio, improve engine luggine, reduce the advantage of bearing maximum load, in the present embodiment, bent axle 4 is the four cylinder engine bent axle, described crank quantity is set to eight, comprise crank I 8, crank II 9, crank III 10, crank IV 11, crank V 12, crank VI 13, crank VII 14 and crank VIII 15, described four equilibrium blocks are corresponding and be integrally formed at crank I, crank IV, crank V and crank VIII one by one, in the present embodiment, main journal is set to five, and the corresponding cylinder number of connecting rod neck is set to four, the Placement of equilibrium block and crank has multiple, both can connect by existing machinery Placements such as bolts, also can one-body moldedly arrange, and in the present embodiment, four equilibrium blocks and the one-body molded setting of corresponding crank, certainly, the petrol engine four equilibrium block bent axles of the present embodiment also comprise timing sprocket axle journal 16 and flywheel flange plate 17.
In the present embodiment, described piston 2 end faces cave inward and are provided with a bowl type flare pit 18, and the end face of described piston and piston circumference side are the flat-tope structure transition, the transition of indication flat-tope structure refers to that the circumference sagittal plane of piston-top surface from flare pit circumference top edge bead to piston circumference side is the sharp edge structure without chamfering, and piston-top surface is also vertical flat-top setting with the joint of piston side, the end face of piston and piston circumference side are the flat-tope structure transition, chamfering not, can avoid, because of what chamfering structure caused, inflammable gas or high-temperature high-pressure fuel gas are produced to the guiding to the gap between piston and piston cylinder, can reduce inflammable gas in the gap between piston and piston cylinder and the concentration of high-temperature high-pressure fuel gas, reduce the radial load of compression ring, reduce the corrosion of high-temperature high-pressure fuel gas to compression ring, extend the working life of compression ring, reduce the maintenance cost of internal-combustion engine, firing chamber working surface and the piston-top surface working surface of cylinder head are complementary, the stability of guaranteed discharge product matter, the piston-top surface of flat-tope structure can coordinate with cylinder cap formation compression clearance simultaneously, the area of contact that is conducive to piston minimizing and high-temperature gas, make stress distribution even, guarantee the integrally-built stability of motions of connecting rod, and the piston-top surface of flat-tope structure, as the part of firing chamber, can produce and squeeze the stream effect, combustion gas in cylinder is mixed, help in-cylinder combustion.
In the present embodiment, described motor also is provided with constituent, described constituent comprises water pump 19 and the thermostat arranged with described water pump 19 integral types, and impeller one end of described water pump 19 is installed and is provided with thermostat base 20, and described thermostat is installed and is arranged at described thermostat base 20; Thermostat base 20 is provided be used to holding the thermostat chamber 21 of thermostat, thermostat is not shown in the drawings, water pump and thermoregulator fitting seat are linked together, make cooling system structure compacter, and thermoregulator is arranged on to the water inlet position of motor, and water inlet to be controlled more responsive, degree of regulation is higher, can not make the water temperature in engine cylinder-body produce large fluctuation, thereby make engine running steady.
In the present embodiment, described motor also is provided with lubrication system, comprises oil pump 22 and sump strainer 23, and described oil pump 22 coordinates with the direct-connected transmission of described bent axle 4; Oil pump is provided with round square hole, and the timing sprocket axle journal 16 of bent axle coordinates with the direct connection for transmission of oil pump circle square hole, guarantees that the operation power of oil pump needs, and makes oil pump mounting structure compactness, conserve space.
In the present embodiment, described sump strainer comprises fuel sucking pipe 24, filter screen 25 and holds in the palm oily device, the oily device of described holder comprises cover body 26 and is one-body molded and be used to holding in the palm oily ring structure holder oil boss 27, the taper type structure of described cover body 26 for being increased gradually by oil inlet end to oil outlet end internal diameter with described cover body 26; Can guarantee on slope or the sufficient and stable supply of the machine oil of the state of jolting motor while travelling, prevent wearing and tearing aggravation and the tile kilning phenomenon of vehicle motor internal works, ensure performance and the working life of motor.
In the present embodiment, described motor also comprises cylinder head assembly, described cylinder head assembly comprises cylinder head, oily rail, oil nozzle 28 and cam pack 33, described cylinder head comprises cylinder cap body 29 and is arranged at the intrinsic intake duct 30 of cylinder cap and air outlet flue 31, described oil nozzle 28 and described oily rail all are installed on the air inlet side of described cylinder head, and described oil nozzle 28 fixedly is communicated with described oily rail and its oil spout end stretches in described intake duct; Described intake duct 30 and air outlet flue 31 tilt to top with respect to the attachment face of described cylinder cap body 29 respectively from inside to outside; The oil rail is not shown in the drawings, intake duct 30 and air outlet flue 31 are obliquely installed and can reduce intake and exhaust resistance, improve intake efficiency, when improving engine power and reducing discharge, also can have with the installation of other parts on cylinder head adaptability preferably, can not affect the layout of other parts.
In the present embodiment, the firing chamber face 32 that described cylinder cap body 29 lower end indents form, described firing chamber face 32 is spheric structure and is that four air valve structures are arranged, in described firing chamber face 32 edges, tops, mind-set cylinder head intake and exhaust both sides form two plane of inclination, and on described two plane of inclination, apportion is provided with two inlet valve ports and two exhaust valve ports.
In the present embodiment, described cylinder head assembly also comprises valve assembly, described valve assembly comprises intake valve and exhaust valve, described intake valve comprises intake valve sealed department 33, intake valve neck 34 and intake valve bar 35, described exhaust valve comprises exhaust valve sealed department 36, exhaust valve neck 37 and exhaust valve rod 38, described intake valve sealed department comprises annular sealing surface I 331 and dish type conical surface I 332, between the diameter R1 of described annular sealing surface I and described engine displacement V, it is following corresponding relation, wherein the diameter R1 dimensional units of annular sealing surface I is millimeter, engine displacement V unit is for rising, , in following table, the diameter R1 of the annular sealing surface I of the corresponding different range of each engine displacement, wherein each scope is three embodiments:
；
Described exhaust valve sealed department 36 comprises annular sealing surface II 361 and dish type conical surface II 362, between the diameter R2 of described annular sealing surface II and described engine displacement V, it is following corresponding relation, wherein the diameter R2 dimensional units of annular sealing surface II is millimeter, and engine displacement V unit is for rising
, in following table, the diameter R3 of the annular sealing surface I of the corresponding different range of each engine displacement, wherein each scope is three embodiments:
；
The setting of the dish type conical surface can be played the closing seam while guaranteeing valve closure firing chamber valve port, and the dish type conical surface can be limited on the exhaust valve seat insert that is arranged at exhaust valve port, guarantees closure effect; Consider the impact of the sealed department of intake valve and exhaust valve on the engine chamber sealing, motor according to different displacements, adopt the diameter of the sealing surface of corresponding intake valve and exhaust valve, improve the combination property of motor, extend the working life of valve and motor.
In the present embodiment, described piston center line c departs from described cylinder vertical center line a and arranges, and Offset d is 0.5-0.8mm; The piston setting of setovering equally, act on the lateral force of piston in the time of can further reducing expansion stroke, and then reduce piston to cylinder side lateral pressure, makes the energy consumed because of friction between piston and cylinder wall also can correspondingly reduce.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (10)
1. bent axle offset petrol engine, described motor is reciprocating engine, comprises cylinder, piston, connecting rod and bent axle, it is characterized in that: described crankshaft axis departs from the setting of described cylinder median vertical line, and Offset is 9-12mm.
2. bent axle offset petrol engine according to claim 1, it is characterized in that: described bent axle comprises main journal, connecting rod neck, crank and equilibrium block, described equilibrium block is set to four, the outside end face of described equilibrium block is the arc structure with the main journal coaxial line, between described arc structure radius R scope and petrol engine discharge capacity V, it is following corresponding relation, wherein arc structure radius R dimensional units is millimeter, and engine displacement V unit is for rising:
1.0≤V＜1.1,45≤R＜50;1.1≤V＜1.2,50≤R＜55;1.2≤V＜1.3,55≤R＜60;1.3≤V＜1.4,60≤R＜64;1.4≤V＜1.5,64≤R＜69;1.5≤V＜1.6,69≤R＜73；1.6≤V＜1.7，73≤R＜78；1.7≤V＜1.8，78≤R＜83；1.8≤V＜1.9，83≤R＜87；1.9≤V＜2.0，87≤R＜92；V=2.0，92≤R＜97。
3. bent axle offset petrol engine according to claim 2, it is characterized in that: described piston-top surface caves inward and is provided with a bowl type flare pit, and the end face of described piston and piston circumference side are the flat-tope structure transition.
4. bent axle offset petrol engine according to claim 3, it is characterized in that: described motor also is provided with constituent, described constituent comprises water pump and the thermostat arranged with described water pump integral type, impeller one end of described water pump is installed and is provided with thermostat base, and described thermostat is installed and is arranged at described thermostat base.
5. bent axle offset petrol engine according to claim 4, it is characterized in that: described motor also is provided with lubrication system, comprises oil pump and sump strainer, and described oil pump coordinates with the direct-connected transmission of described bent axle.
6. bent axle offset petrol engine according to claim 5, it is characterized in that: described sump strainer comprises fuel sucking pipe, filter screen and holder oil device, the oily device of described holder comprises cover body and is one-body molded and be used to holding in the palm oily ring structure holder oil boss, the taper type structure of described cover body for being increased gradually by oil inlet end to oil outlet end internal diameter with described cover body.
7. bent axle offset petrol engine according to claim 6, it is characterized in that: described motor also comprises cylinder head assembly, described cylinder head assembly comprises cylinder head, oily rail, oil nozzle and cam pack, described cylinder head comprises the cylinder cap body and is arranged at the intrinsic intake duct of cylinder cap and air outlet flue, described oil nozzle and described oily rail all are installed on the air inlet side of described cylinder head, and described oil nozzle fixedly is communicated with described oily rail and its oil spout end stretches in described intake duct; Described intake duct and air outlet flue tilt to top with respect to the attachment face of described cylinder cap body respectively from inside to outside.
8. bent axle offset petrol engine according to claim 7, it is characterized in that: the firing chamber face that described cylinder cap body lower end indent forms, described firing chamber face is spheric structure and is that four air valve structures are arranged, in edge, face top, described firing chamber, mind-set cylinder head intake and exhaust both sides form two plane of inclination, and on described two plane of inclination, apportion is provided with two inlet valve ports and two exhaust valve ports.
9. bent axle offset petrol engine according to claim 8, it is characterized in that: described cylinder head assembly also comprises valve assembly, described valve assembly comprises intake valve and exhaust valve, described intake valve comprises the intake valve sealed department, intake valve neck and intake valve bar, described exhaust valve comprises the exhaust valve sealed department, exhaust valve neck and exhaust valve rod, described intake valve sealed department comprises annular sealing surface I and dish type conical surface I, between the diameter R1 of described annular sealing surface I and described engine displacement V, it is following corresponding relation, wherein the diameter R1 dimensional units of annular sealing surface I is millimeter, engine displacement V unit is for rising:
1.0≤V＜1.1,17≤R1＜19；1.1≤V＜1.2，19≤R1＜21；1.2≤V＜1.3，21≤R1＜23；1.3≤V＜1.4，23≤R1＜24.5；1.4≤V＜1.5，24.5≤R1＜26；V=1.5，26≤R1≤27；
Described exhaust valve sealed department comprises annular sealing surface II and dish type conical surface II, between the diameter R2 of described annular sealing surface II and described engine displacement V, it is following corresponding relation, wherein the diameter R2 dimensional units of annular sealing surface II is millimeter, and engine displacement V unit is for rising:
1.0≤V＜1.1,15≤R1＜17；1.1≤V＜1.2，17≤R1＜18.5；1.2≤V＜1.3，18.5≤R1＜20；1.3≤V＜1.4，20≤R1＜21.5；1.4≤V＜1.5，21.5≤R1＜23；V=1.5，?23≤R1≤24。
10. bent axle offset petrol engine according to claim 9 is characterized in that: described piston center line departs from described cylinder vertical center line 0.5-0.8mm and arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202293188U CN203308579U (en) | 2013-04-28 | 2013-04-28 | Gasoline engine with deflection type crank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202293188U CN203308579U (en) | 2013-04-28 | 2013-04-28 | Gasoline engine with deflection type crank |
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| CN203308579U true CN203308579U (en) | 2013-11-27 |
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| CN2013202293188U Expired - Fee Related CN203308579U (en) | 2013-04-28 | 2013-04-28 | Gasoline engine with deflection type crank |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256117A (en) * | 2013-04-28 | 2013-08-21 | 重庆小康工业集团股份有限公司 | Gasoline engine with deviated crankshaft |
| CN105041467A (en) * | 2015-06-08 | 2015-11-11 | 张义敏 | Double-crankshaft-offset four-stoke horizontal internal combustion engine without cylinder head |
| CN108730319A (en) * | 2018-07-13 | 2018-11-02 | 尹建 | The positive open type jointed connecting rod of five connecting rod engines |
-
2013
- 2013-04-28 CN CN2013202293188U patent/CN203308579U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256117A (en) * | 2013-04-28 | 2013-08-21 | 重庆小康工业集团股份有限公司 | Gasoline engine with deviated crankshaft |
| CN103256117B (en) * | 2013-04-28 | 2016-11-09 | 重庆小康工业集团股份有限公司 | Bent axle offset petrol engine |
| CN105041467A (en) * | 2015-06-08 | 2015-11-11 | 张义敏 | Double-crankshaft-offset four-stoke horizontal internal combustion engine without cylinder head |
| CN108730319A (en) * | 2018-07-13 | 2018-11-02 | 尹建 | The positive open type jointed connecting rod of five connecting rod engines |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 |