CN102305148B - General gasoline engine cylinder head and gasoline engine - Google Patents
General gasoline engine cylinder head and gasoline engine Download PDFInfo
- Publication number
- CN102305148B CN102305148B CN201110061204.2A CN201110061204A CN102305148B CN 102305148 B CN102305148 B CN 102305148B CN 201110061204 A CN201110061204 A CN 201110061204A CN 102305148 B CN102305148 B CN 102305148B
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- exhaust
- intake
- valve
- cylinder head
- gasoline engine
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- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 14
- 238000010304 firing Methods 0.000 description 8
- 239000000446 fuel Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention discloses a general gasoline engine cylinder head and a gasoline engine. In the general gasoline engine cylinder head, an air inlet valve and an exhaust valve which correspond to an air inlet channel and an exhaust channel are formed on a cylinder head body; the air inlet valve is provided with an air inlet rocker arm and an air inlet push rod correspondingly; the exhaust valve is provided with an exhaust rocker arm and an exhaust push rod correspondingly; the motion radii of the air inlet rocker arm and the exhaust rocker arm are different; by the general gasoline engine cylinder head, the arrangement space of the rocker arms and the valves is saved, the occupied arrangement areas are small, and the arrangement of the conventional push rod is not needed to be changed; particularly for a vertical shaft gasoline engine, a slanting valve structure of an underlaid cam shaft can be realized, air inlet tumbling flow and air inlet vortex are convenient to organize in a cylinder, the air inlet efficiency is improved, the disturbance of air flow in the cylinder is increased, the combustion is accelerated, the power of the gasoline engine is improved, and the discharge is reduced; taking the gasoline engine of which the maximum power (the revolving speed is 3,600 revolutions per minute rpm) is 3.0 kW as an example, the power can be improved to 3.6 kW, and the discharge can be reduced from 9.0 to 8.0 g/kW.h; and taking the gasoline engine of which the maximum power is 3.5 kW as an example, the power can be improved to 4.2 kW, the discharge can be reduced from 9.0 to 8.1 g/kW.h, and the gasoline engines meet the standard of 10 g/kW.h at the environmental protection agency 3 (EPA) stage.
Description
Technical field
The present invention relates to a kind of power engine parts and application thereof, particularly a kind of gasoline engine part and application thereof.
Background technique
Petrol engine is a kind of dynamic power machine used gasoline for the fuel.Be made up of parts such as cylinder, connecting rod, gas distribution system, oil supply system, lubrication system and ignition systems; Cylinder head is provided with intake duct and air outlet flue, and jointly forms face, firing chamber with cylinder, thus, belongs to the parts of petrol engine outbalance.Gasoline in firing chamber combustion, produces a large amount of heats as the mixture of fuel and air, for as driving-energy.
The gas distribution system of petrol engine is the necessary parts ensureing that petrol engine normally runs, as comprise the intake valve and exhaust valve that described cylinder head is provided with, the opening and closing of intake valve and exhaust valve are controlled respectively by driving components such as rocker arm assemblies; Described intake valve and exhaust valve are respectively equipped with the Rocker arm assembly driving its opening and closing.
Intake valve and exhaust valve are used for opening, closing gas-entered passageway and exhaust passage, adapt to, maintain the normal operation of petrol engine with the air-breathing in firing chamber, work by combustion and exhaust phase.Therefore, the layout of inlet and exhaust valve and intake and exhaust channel plays vital effect for the normal air inlet of firing chamber, burning and exhaust.
The opening and closing of intake valve and exhaust valve generally drive the acting in conjunction of assembly to realize by return spring and rocking arm, and the power of rocking arm comes from camshaft, according to different structures, are realized by push rod or Direct driver.No matter which kind of driving structure is all finally realize driving by intake rocker and exhaust rocker arm; In prior art, the production of rocking arm levels off to standardization, and intake rocker is substantially identical with the structure of exhaust rocker arm, and thus action radius (namely around the radius of fulcrum) is also identical, and rocking arm is arranged in cylinder head and also seems comparatively neat.But this structure can cause rocking arm and the rectangular arrangement of valve, occupies larger space, and can not with the intake and exhaust direction of gas-entered passageway and exhaust passage, reduce the power of petrol engine, and impact discharge; Particularly for the structure of inclined valve, can increase further and take up room, have influence on the layout of other parts (as parts such as Carburetor/air filters).
Therefore, need to improve the rocker structure of petrol engine valve cylinder end, change the rectangular area structure after rocking arm and valve layout, save taking up room of Rocker arm assembly and valve, there is stronger adaptability, can need to arrange intake and exhaust channel according to intake and exhaust, be convenient to organize air inlet, reduce intake and exhaust resistance.
Summary of the invention
In view of this, the invention provides a kind of general gasoline engine cylinder head and petrol engine thereof, change the rectangular area structure after rocking arm and valve layout, save taking up room of Rocker arm assembly and valve, there is stronger adaptability, can need to arrange intake and exhaust channel according to intake and exhaust, be convenient to organize air inlet, reduce intake and exhaust resistance, and adopt inclined valve under can realizing being convenient on miniature gasoline engine the prerequisite that other parts arrange.
General gasoline engine cylinder head of the present invention, comprise cylinder head body and the gas-entered passageway and the exhaust passage that are arranged at cylinder head body, correspondingly with gas-entered passageway on described cylinder head body be provided with intake valve, correspondingly with exhaust passage be provided with exhaust valve, intake valve correspondence arranges intake rocker and inlet push rod, exhaust valve correspondence arranges exhaust rocker arm and exhaust push rod, and described intake rocker is different with the action radius of exhaust rocker arm.
Further, intake rocker and exhaust rocker arm wherein longer rocking arm resistance arm tilt to the line of intake valve axis and exhaust valve axis in cylinder head mounting plane; Be convenient to longer rocking arm is drawn close to the line of intake valve axis and exhaust valve axis, rocking arm installed more compact, the valve being convenient to miniature gasoline engine arranges the layout with other parts.
Further, described gas-entered passageway between inlet push rod and exhaust push rod, the length being shorter in length than exhaust rocker arm of described intake rocker; The resistance arm of described exhaust rocker arm tilts to the line of intake valve axis and exhaust valve axis in cylinder head mounting plane; This structure can adopt inclined valve not need to change the layout of original push rod, and the inclination of the resistance arm of exhaust rocker arm can be adapted to the inlet and exhaust valve of any structural configuration; Further, resistance arm tilts, and makes exhaust push rod drive exhaust rocker arm not produce additional moment, ensures its flexibility.
Further, described petrol engine is perpendicular shaft configuration, the line level of described intake valve axis and exhaust valve axis, and the airintake direction of gas-entered passageway and the discharge directions of exhaust passage are all positioned at horizontal plane; Substantially horizontal air inlet and exhaust, avoid air inlet and exhaust mutually to stagger, and is more conducive to the smooth and easy of intake and exhaust and that cylinder head air flue is arranged is more regular, and be beneficial to air-flow and enter cylinder, formed and roll stream, accelerate burning, raising petrol engine working efficiency.
Further, described intake valve top rolls tiltedly to gas-entered passageway in the horizontal direction, and exhaust valve top rolls to exhaust passage tiltedly in the horizontal direction; The resistance arm of described exhaust rocker arm tilts to the line of intake valve axis and exhaust valve axis in vertical plane; The air valve structure of this structure, for vertical shaft petrol engine, the inclined valve structure of lower arranging cam axle can be realized, angle between inlet and exhaust valve and intake and exhaust air flue is less than face, existing structure firing chamber, be convenient to roll stream and intake swirl in the air inlet of cylinder inner tissue, improve intake efficiency, increase flow perturbation in cylinder, accelerate burning, improve petrol engine power; Reduce the resistance of intake and exhaust, make intake and exhaust more smooth and easy, be beneficial to and improve petrol engine power, reduce fuel consume, reduce exhaust emissions; Inclined valve structure, can also shorten intake and exhaust port length, reduces intake and exhaust resistance, the ridge area in the middle of intake and exhaust channel can be made wider, be beneficial to cooling, increase non-deformability, greatly improve the cooling effect of ridge area, reduce cylinder head distortion at high temperature, improve reliability.
Further, the angle between described intake valve axis and exhaust valve axis is less than or equal to 30 °; Ensure that there is enough angles of inclination, ensure the smooth and easy of air inlet and exhaust, meanwhile, also ensure that ridge area has enough width;
Further, described intake rocker is arranged at intake rocker seat by intake rocker axle, and exhaust rocker arm is arranged at exhaust rocker arm seat by exhaust rocker arm axle; Described inlet valve rocker axle axis and exhaust valve rocking arm axle axis are the angle of 45 ° ± 20 ° at vertical plane; 45 ° of the bests, can be adapted to the demand that rocking arm is arranged, avoid push rod to drive rocking arm to produce additional moment, are beneficial to harmony, the sealing of guarantee rocking arm band valve events and drive flexibly; Reasonable Arrangement rocking arm can be carried out according to the position of inlet and exhaust valve, be more conducive to ensure valve timing, ensure port timing, thus improve performance and reduce discharge.
Further, described intake rocker seat and exhaust rocker arm seat are hatch frame, described intake rocker axle two ends correspondence penetrates the opening both sides of intake rocker seat and can coordinate around the mode single-degree-of-freedom of own axis, the opening internal fixtion that described intake rocker is positioned at intake rocker seat is arranged at intake rocker axle; Described exhaust rocker arm axle two ends correspondence penetrates the opening both sides of exhaust rocker arm seat and can coordinate around the mode single-degree-of-freedom of own axis, the opening internal fixtion that described exhaust rocker arm is positioned at exhaust rocker arm seat is arranged at exhaust rocker arm axle; Fixed rocking arm is in running, and play or the shaking volume of its all directions are little, can effectively reduce the rate of fault of rocking arm, reduces maintenance cost; Reasonable Arrangement rocking arm is carried out in the position being adapted to intake and exhaust, is also beneficial to and ensures valve timing, ensures port timing, thus improves performance and reduce discharge.
The invention also discloses a kind of petrol engine applying general gasoline engine cylinder head, described general gasoline engine cylinder head is installed on petrol engine.
Beneficial effect of the present invention: general gasoline engine cylinder head of the present invention and petrol engine thereof, adopt intake rocker and the exhaust rocker arm of different motion radius (length in the movement direction), change the rectangular area structure after rocking arm and valve layout, save taking up room of Rocker arm assembly and valve, there is stronger adaptability, can need to arrange intake and exhaust channel according to intake and exhaust, be convenient to organize air inlet, reduce intake and exhaust resistance, improve gasoline engine power, reduce discharge; And adopt inclined valve under can realizing being convenient on miniature gasoline engine the prerequisite that other parts arrange, do not change the layout of existing push rod, particularly for vertical shaft petrol engine, can realize the inclined valve structure of lower arranging cam axle, the angle between inlet and exhaust valve and intake and exhaust air flue is less than face, existing structure firing chamber, is convenient to roll stream and intake swirl in the air inlet of cylinder inner tissue, improve intake efficiency, increase flow perturbation in cylinder, accelerate burning, improve petrol engine power; Reduce the resistance of intake and exhaust, make intake and exhaust more smooth and easy, be beneficial to and improve petrol engine power, reduce fuel consume, reduce exhaust emissions, the HC+NOx of discharge meets or exceeds U.S. EPA standard, for the petrol engine of peak output (rotating speed 3600rpm) 3.0kW, power can bring up to 3.6kW, discharges and is reduced to 8.0g/kW.h by 9.0g/kW.h; For the petrol engine of peak output by 3.5kW, power can bring up to 4.2kW, discharges and is reduced to 8.1g/kW.h by 9.0g/kW.h, all meets the standard of EPA3 stage 10g/kW.h; As can be seen here, petrol engine power of the present invention improves and discharge reduces comparatively obvious, is beneficial to protection of the environment.
Cylinder head of the present invention is used for petrol engine, and energy saving, reduction consume.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is that Fig. 1 is along A-A to sectional view.
Embodiment
Fig. 1 is structural representation of the present invention, Fig. 2 is that Fig. 1 is along A-A to sectional view, as shown in the figure: the general gasoline engine cylinder head of the present embodiment, comprise cylinder head body 1 and the gas-entered passageway 12 and the exhaust passage 11 that are arranged at cylinder head body 1, face, firing chamber 13 is formed inside cylinder head body 1, correspondingly with gas-entered passageway 12 on described cylinder head body 1 be provided with intake valve 5, correspondingly with exhaust passage 11 be provided with exhaust valve 9, intake valve 5 correspondence arranges intake rocker 8 and inlet push rod (not identifying in figure), exhaust valve 9 correspondence arranges exhaust rocker arm 2 and exhaust push rod (not identifying in figure), described intake rocker 8 is different with the action radius of exhaust rocker arm 2.
In the present embodiment, intake rocker 8 and exhaust rocker arm 2 wherein longer rocking arm (intake rocker 8 and longer one of exhaust rocker arm 2) resistance arm tilt to the line of intake valve 5 axis and exhaust valve 9 axis in cylinder head mounting plane; Be convenient to longer rocking arm is drawn close to the line of intake valve axis and exhaust valve axis, rocking arm installed more compact, the valve being convenient to miniature gasoline engine arranges the layout with other parts; As shown in the figure, the line of intake valve 5 axis and exhaust valve 9 axis and the line of inlet push rod axis and exhaust push rod axis intersect between inlet push rod axis and exhaust push rod axis, in angle α, make this region structure triangular in shape, greatly reduce floor space.
In the present embodiment, described gas-entered passageway 12 between inlet push rod and exhaust push rod, the length being shorter in length than exhaust rocker arm 2 of described intake rocker 8; The resistance arm of described exhaust rocker arm 2 tilts to the line of intake valve 5 axis and exhaust valve 9 axis in cylinder head mounting plane; This structure can adopt inclined valve not need to change the layout of original push rod, and the inclination of the resistance arm of exhaust rocker arm can be adapted to the inlet and exhaust valve of any structural configuration; Further, resistance arm tilts, and makes exhaust push rod drive exhaust rocker arm not produce additional moment, ensures its flexibility.
In the present embodiment, described petrol engine is perpendicular shaft configuration, the line level of described intake valve 5 axis and exhaust valve 9 axis, and the airintake direction of gas-entered passageway 12 and the discharge directions of exhaust passage 11 are all positioned at horizontal plane; Substantially horizontal air inlet and exhaust, avoid air inlet and exhaust mutually to stagger, and is more conducive to the smooth and easy of intake and exhaust and that cylinder head air flue is arranged is more regular, and be beneficial to air-flow and enter cylinder, formed and roll stream, accelerate burning, raising petrol engine working efficiency.
In the present embodiment, described intake valve 5 top rolls tiltedly to gas-entered passageway 12 in the horizontal direction, and exhaust valve 9 top rolls to exhaust passage 11 tiltedly in the horizontal direction; The resistance arm of described exhaust rocker arm 2 tilts to the line of intake valve axis and exhaust valve axis in vertical plane; The air valve structure of this structure, for vertical shaft petrol engine, the inclined valve structure of lower arranging cam axle can be realized, angle between inlet and exhaust valve and intake and exhaust air flue is less than face, existing structure firing chamber, be convenient to roll stream and intake swirl in the air inlet of cylinder inner tissue, improve intake efficiency, increase flow perturbation in cylinder, accelerate burning, improve petrol engine power; Reduce the resistance of intake and exhaust, make intake and exhaust more smooth and easy, be beneficial to and improve petrol engine power, reduce fuel consume, reduce exhaust emissions; Inclined valve structure, can also shorten intake and exhaust port length, reduces intake and exhaust resistance, the ridge area in the middle of intake and exhaust channel can be made wider, be beneficial to cooling, increase non-deformability, greatly improve the cooling effect of ridge area, reduce cylinder head distortion at high temperature, improve reliability.
In the present embodiment, the angle β between described intake valve 5 axis and exhaust valve 9 axis is less than or equal to 30 °; Ensure there is enough angles of inclination and be beneficial to layout, ensure the smooth and easy of air inlet and exhaust, meanwhile, also ensure that ridge area has enough width;
In the present embodiment, described intake rocker 8 is arranged at intake rocker seat 6 by intake rocker axle 7, and exhaust rocker arm 2 is arranged at exhaust rocker arm seat 4 by exhaust rocker arm axle 3; Described inlet valve rocker axle 7 axis and exhaust valve rocking arm axle 3 axis are the angle δ of 45 ° ± 20 ° at vertical plane, adopt 45 ° in the present embodiment; Be convenient to arrange, and the demand of rocking arm layout can be adapted to, avoid push rod to drive rocking arm to produce additional moment, be beneficial to harmony, the sealing of guarantee rocking arm band valve events and drive flexibly; Reasonable Arrangement rocking arm can be carried out according to the position of inlet and exhaust valve, be more conducive to ensure valve timing, ensure port timing, thus improve performance and reduce discharge.
In the present embodiment, described intake rocker seat 6 and exhaust rocker arm seat 4 are hatch frame, described intake rocker axle 7 two ends correspondence penetrates the opening both sides of intake rocker seat 6 and can coordinate around the mode single-degree-of-freedom of own axis, the opening internal fixtion that described intake rocker 8 is positioned at intake rocker seat 6 is arranged at intake rocker axle 7; Described exhaust rocker arm axle 3 two ends correspondence penetrates the opening both sides of exhaust rocker arm seat 4 and can coordinate around the mode single-degree-of-freedom of own axis, the opening internal fixtion that described exhaust rocker arm 2 is positioned at exhaust rocker arm seat 4 is arranged at exhaust rocker arm axle 3.So that the fit system that can adopt prior art can be coordinated around the mode single-degree-of-freedom of own axis, comprise shaft shoulder restrictive axial degrees of freedom etc.; Fixed rocking arm is in running, and play or the shaking volume of its all directions are little, can effectively reduce the rate of fault of rocking arm, reduces maintenance cost; Reasonable Arrangement rocking arm is carried out in the position being adapted to intake and exhaust, is also beneficial to and ensures valve timing, ensures port timing, thus improves performance and reduce discharge.
The invention also discloses a kind of petrol engine applying general gasoline engine cylinder head, this general gasoline engine cylinder head is installed on petrol engine, when this petrol engine is horizontal axis, is applied to motorcycle; Other structural types can be used for universal machine, and universal machine comprises pump, blower fan, compressor, subtracts variable-speed motor, generator etc.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (6)
1. a general gasoline engine cylinder head, comprise cylinder head body and the gas-entered passageway and the exhaust passage that are arranged at cylinder head body, correspondingly with gas-entered passageway on described cylinder head body be provided with intake valve, correspondingly with exhaust passage be provided with exhaust valve, intake valve correspondence arranges intake rocker and inlet push rod, exhaust valve correspondence arranges exhaust rocker arm and exhaust push rod, it is characterized in that: described intake rocker is different with the action radius of exhaust rocker arm; Described gas-entered passageway between inlet push rod and exhaust push rod, the length being shorter in length than exhaust rocker arm of described intake rocker; The resistance arm of described exhaust rocker arm tilts to the line of intake valve axis and exhaust valve axis in cylinder head mounting plane; Described petrol engine is perpendicular shaft configuration, the line level of described intake valve axis and exhaust valve axis, the airintake direction of gas-entered passageway and the discharge directions of exhaust passage are all positioned at horizontal plane, and the line of intake valve axis and exhaust valve axis and the line of inlet push rod axis and exhaust push rod axis intersect between inlet push rod axis and exhaust push rod axis.
2. general gasoline engine cylinder head according to claim 1, is characterized in that: described intake valve top rolls tiltedly to gas-entered passageway in the horizontal direction, and exhaust valve top rolls to exhaust passage tiltedly in the horizontal direction; The resistance arm of described exhaust rocker arm tilts to the line of intake valve axis and exhaust valve axis in vertical plane.
3. general gasoline engine cylinder head according to claim 2, is characterized in that: the angle between described intake valve axis and exhaust valve axis is less than or equal to 30 °.
4. general gasoline engine cylinder head according to claim 3, is characterized in that: described intake rocker is arranged at intake rocker seat by intake rocker axle, and exhaust rocker arm is arranged at exhaust rocker arm seat by exhaust rocker arm axle; Described inlet valve rocker axle axis and exhaust valve rocking arm axle axis are the angle of 45 ° ± 20 ° at vertical plane.
5. general gasoline engine cylinder head according to claim 4, it is characterized in that: described intake rocker seat and exhaust rocker arm seat are hatch frame, described intake rocker axle two ends correspondence penetrates the opening both sides of intake rocker seat and can coordinate around the mode single-degree-of-freedom of own axis, the opening internal fixtion that described intake rocker is positioned at intake rocker seat is arranged at intake rocker axle; Described exhaust rocker arm axle two ends correspondence penetrates the opening both sides of exhaust rocker arm seat and can coordinate around the mode single-degree-of-freedom of own axis, the opening internal fixtion that described exhaust rocker arm is positioned at intake rocker seat is arranged at exhaust rocker arm axle.
6. application rights requires a petrol engine for the general gasoline engine cylinder head described in 1 to 5 arbitrary claim, it is characterized in that: general gasoline engine cylinder head is installed on petrol engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110061204.2A CN102305148B (en) | 2011-03-14 | 2011-03-14 | General gasoline engine cylinder head and gasoline engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110061204.2A CN102305148B (en) | 2011-03-14 | 2011-03-14 | General gasoline engine cylinder head and gasoline engine |
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| CN102305148A CN102305148A (en) | 2012-01-04 |
| CN102305148B true CN102305148B (en) | 2015-07-01 |
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| CN201110061204.2A Expired - Fee Related CN102305148B (en) | 2011-03-14 | 2011-03-14 | General gasoline engine cylinder head and gasoline engine |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305147B (en) * | 2011-03-14 | 2015-12-09 | 隆鑫通用动力股份有限公司 | Engine head assembly and petrol engine thereof |
| CN102305145A (en) * | 2011-03-14 | 2012-01-04 | 隆鑫通用动力股份有限公司 | Air-cooled general gasoline engine cylinder head and gasoline engine |
| CN102312718B (en) | 2011-03-14 | 2014-12-10 | 隆鑫通用动力股份有限公司 | Universal gasoline engine |
| CN113818942B (en) * | 2021-09-11 | 2022-10-04 | 重庆龙力动力设备有限公司 | Valve actuating mechanism of gasoline engine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1472435A (en) * | 2002-07-31 | 2004-02-04 | ���＼�й�ҵ��ʽ���� | Air and fuel jet engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8087391B2 (en) * | 2003-06-26 | 2012-01-03 | Tores Lawrence S | Apparatus and methodology for rocker arm assembly |
| CN201016309Y (en) * | 2007-02-02 | 2008-02-06 | 佛山市顺德德力柴油机有限公司 | Upright single-cylinder diesel engine |
| JP2008240634A (en) * | 2007-03-27 | 2008-10-09 | Honda Motor Co Ltd | Valve gear of engine |
| US8220429B2 (en) * | 2009-07-23 | 2012-07-17 | Briggs & Stratton Corporation | Overhead valve and rocker arm configuration for a small engine |
| CN202031715U (en) * | 2011-03-14 | 2011-11-09 | 隆鑫通用动力股份有限公司 | Cylinder head of compact valve rocker assembly and gasoline engine thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1472435A (en) * | 2002-07-31 | 2004-02-04 | ���＼�й�ҵ��ʽ���� | Air and fuel jet engine |
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