CN102392750A - Cylinder end with multi-spherical surface combustion chamber and gasoline engine thereof - Google Patents
Cylinder end with multi-spherical surface combustion chamber and gasoline engine thereof Download PDFInfo
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- CN102392750A CN102392750A CN2011102781806A CN201110278180A CN102392750A CN 102392750 A CN102392750 A CN 102392750A CN 2011102781806 A CN2011102781806 A CN 2011102781806A CN 201110278180 A CN201110278180 A CN 201110278180A CN 102392750 A CN102392750 A CN 102392750A
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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
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Abstract
The invention discloses a cylinder end with a multi-spherical surface combustion chamber and a gasoline engine thereof. The cylinder end comprises a cylinder end body, an intake passage, an exhaust passage and a spark plug-mounting hole, the intake passage, the exhaust passage and the spark plug-mounting hole are arranged in the cylinder end body, a combustion chamber surface is formed on the inner side of the cylinder end body, three spherical surfaces are sequentially tangent to one another to form the combustion chamber surface, and are a spherical surface I, a spherical surface II and a spherical surface III sequentially from the bottom to the top, the radius of the spherical surface II is greater than the radius of the spherical surface I, and the radius of the spherical surface III is greater than the radius of the spherical surface II. The cylinder end is favorable for the mixture of combustion gas, the entering gas flow can receive resistance in different directions, consequently, the fuel mixture can better generate turbulence, combustion is more sufficient, and thereby the power of the gasoline engine can be effectively increased; meanwhile, intake resistance and exhaust resistance are decreased, consequently, gas inlet and exhaust are more smooth, the fuel consumption rate and emission are decreased, the power can be increased by about 20W, the fuel consumption rate is decreased by about 5 percent, and emission reaches the standard of 8g/kW.h at the EPA3 level; and therefore the increase of the power of the gasoline engine and the decrease of emission are more remarkable.
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 that uses gasoline for the fuel.Partly form by cylinder, connecting rod, gas distribution system, oil supply system, lubrication system and ignition system etc.; Cylinder head is provided with gas-entered passageway and exhaust passage, and forms the firing chamber face jointly with cylinder, thereby, belong to the parts of petrol engine outbalance.Gasoline act as a fuel with AIR MIXTURES in the firing chamber internal combustion, produce great amount of heat, be used for as driving energy.The parameter of firing chamber is the necessary condition that guarantees the efficient operation of petrol engine.
In the existing technology, the firing chamber face of cylinder head generally adopts wedge-shaped structure, has bigger face on year-on-year basis, but this structure helps the installation of other accessory structure, such as valve assembly; If change firing chamber face structure, then can influence the layout of inlet and outlet door assembly.For overcoming the above problems, a kind of spherical combustion chamber structure has appearred, have less surface to volume ratio, the performance of petrol engine is had influence preferably; Yet spherical combustion chamber is unfavorable for the mixing of combustion gas because surface smoothing, and the shape sudden change appears in face in the firing chamber for the installation meeting that adapts to valve, influences mixing, air inlet and exhaust, thereby the advantage of spherical combustion chamber is not in full use.
The structure that the Rocker arm assembly of existing inlet and outlet door assembly more generally uses is provided with the tubular seat as rocking arm and is coated at pitman arm shaft and can cooperate around rotational with it, and pitman arm shaft is fixed in rocker arm bracket.This structure is because tubular seat and pitman arm shaft surface of contact are bigger, and the influence of machining accuracy, installation precision and long-time friction, multi-faceted rocking can occur behind the long-play; Cause the problem that existing inlet and outlet door assembly is not closed completely, is forbidden and action has some setbacks; Particularly for the sphere firing chamber, this rocker structure influences the proper functioning of sphere firing chamber, can't bring into play its advantage; Can not be adapted to the use of sphere firing chamber, influence the normal operation of petrol engine.
Therefore, need improve the firing chamber of petrol engine cylinder head, have the chamber structure of littler surface to volume ratio, be beneficial to the mixing of combustion gas, improve the operational efficiency of petrol engine, fuel saving reduces discharging.
Summary of the invention
In view of this, the present invention provides the cylinder head and the petrol engine thereof of a kind of many spheres firing chamber, has the chamber structure of littler surface to volume ratio, is beneficial to the mixing of combustion gas, improves the operational efficiency of petrol engine, and fuel saving reduces discharging.
The cylinder head of many spheres of the present invention firing chamber; Comprise cylinder head body and the gas-entered passageway, exhaust passage and the spark plug mounting hole that are arranged at the cylinder head body; The inboard firing chamber face that forms of cylinder head body, said firing chamber face is followed successively by sphere I, sphere II and sphere III by three tangent successively formation of sphere by the bottom to the top; The radius of said sphere II is greater than the radius of sphere I, and the radius of said sphere III is greater than the radius of sphere II.
Further, said sphere I, sphere II and the shared firing chamber of sphere III face ratio are 1: 3: 2 by width; The petrol engine dynamic test of the firing chamber face of this ratio is most effective, discharges minimumly, reduces fuel consume and reaches 6.5%, and enhancing power of gasoline engine surpasses 200W than existing single sphere firing chamber.
Further; The corresponding intake valve that is provided with gas-entered passageway on the said cylinder head body; The corresponding exhaust valve that is provided with the exhaust passage; Said intake valve and exhaust valve are respectively equipped with rocking arm; Be provided with two rocker arm brackets with two rocking arms are corresponding one by one on the said cylinder head body, said two rocking arms are respectively equipped with the telescoping groove that supplies corresponding rocker arm bracket top to embed, and it is the lever construction of fulcrum that two rocking arms are articulated in by the pitman arm shaft single-degree-of-freedom of passing the telescoping groove two side that the rocker arm bracket top corresponding with it form with the pitman arm shaft respectively; Be provided with the hinged rocking arm of structure of telescoping groove through rocking arm; Can reduce the transverse dimension of rocker arm bracket greatly; Occupy less space, be applicable to that small volume, small displacement engine use, and avoid because the engine cylinder head area is not suitable for the structure that installs and fixes the hinged rocking arm of rocker arm bracket for a short time; Rocking arm of the present invention is in running, and the play of its all directions or rolling momentum are little, and assurance inlet and outlet door assembly is closed the back good airproof performance; Move smooth and easy, thereby guarantee the normal operation of petrol engine, stressed and the inconsistent situation of traffic direction in the time of valve can not occurring and open and close; Guarantee sealing effect, thereby raise the efficiency energy saving; And the saving arrangement space, can effectively reduce the rate of fault of rocking arm, reduce maintenance cost; The reasonable Arrangement rocking arm is come in the position that is adapted to intake and exhaust, also is beneficial to guarantee to guarantee port timing valve timing, thereby improves performance and reduce discharging.
Further, be positioned on the face of said firing chamber around the seat ring of intake valve with the seat ring that is positioned at exhaust valve and be respectively the concordant plane of seat ring inner end with the seat ring inner end and the exhaust valve of intake valve on every side; Eliminate step, reduce interference, reduce resistance, eliminate the sudden change of dead angle and shape, guarantee the abundant burning of mixed gas, improve petrol engine efficient air inlet and exhaust.
Further, said intake valve by bottom to top to the gas-entered passageway tilt, exhaust valve by bottom to top to the exhaust passage tilt; Because valve is tilting, can make the middle bridge of the nose district of intake and exhaust channel wideer, be beneficial to cooling; Increase non-deformability, cooperate, improved the cooling effect in bridge of the nose district greatly with complete unimpeded cooling duct 2; Reduce cylinder head distortion at high temperature, improved reliability; Simultaneous adaptation is in many spheres firing chamber, and the angle between inlet and exhaust valve and the intake and exhaust air flue is littler than existing structure firing chamber face, is convenient to organize air inlet; Improve intake efficiency; Be convenient to roll stream and intake swirl, increase flow perturbation in the cylinder, accelerate burning in the air inlet of cylinder inner tissue; Reduce the resistance of intake and exhaust, make intake and exhaust more smooth and easy, be beneficial to and improve petrol engine power, be beneficial to raising power, reduce fuel consume, reduce exhaust emissions, the protection environment; Two pitman arm shafts radially inwardly are obliquely installed to the top with respect to cylinder head body attachment face, and the angle of inclination of said pitman arm shaft is corresponding identical with the angle of inclination of intake valve and exhaust valve; The pitman arm shaft that is obliquely installed can be adapted to the inclined valve structure and be adapted to the geometrical shape of composite sphere firing chamber, is beneficial to guarantee that rocking arm drives the harmony and the sealing of valve event.
Further, said intake valve axis and exhaust valve axis are respectively perpendicular to the tangent plane of firing chamber face and its crosspoint; The radial centre lines of the axes intersect of intake valve and exhaust valve face in the firing chamber just adapts with the intake and exhaust direction of firing chamber, reduces resistance, increases the power character of petrol engine.
Further, be positioned at the air-cooled passage of spark plug that the spark plug mounting hole side is provided with perforation on the said cylinder head body; Make that through air-cooled spark plug and cylinder body itself are cooled off preferably, avoid occurring that spark plug reduces the problem in working life in the existing technology owing to high temperature.
Further, said this external surface of cylinder head is provided with radiating fin, and said radiating fin extends to the exhaust passage outer wall; Can effectively reduce delivery temperature, be beneficial to the vent gas treatment parts in the protection vent systems, further reduce discharging, be beneficial to environmental protection;
Further, the telescoping groove on said two rocking arms is groove, and the top of two rocker arm brackets is exposed through the telescoping groove corresponding with it and is respectively equipped with the oilhole that connects to pitman arm shaft.
The invention also discloses a kind of petrol engine of using the cylinder head of many spheres firing chamber, the cylinder head of said many spheres firing chamber is installed on petrol engine.
Beneficial effect of the present invention: the cylinder head and the petrol engine thereof of many spheres of the present invention firing chamber; Adopt many spheres to constitute the firing chamber face jointly, with respect to the sphere firing chamber, surface to volume ratio further reduces; Improve the petrol engine working efficiency; And eliminate the abundant mixing that existing one spherical structure is unfavorable for combustion gas, reduce composite rate, the drawback of influence burning and discharging; And many spheric structures are beneficial to the mixing of combustion gas, and the air-flow of entering can receive the resistance of different direction, make fuel mixture can better form turbulent flow; It is more abundant to burn; Effectively reduce fuel consumption rate, be beneficial to burning and reduce the CH+NO discharging, increase petrol engine power; Simultaneously, adopt many spheres firing chamber face structure, make the angle between inlet and exhaust valve and the intake and exhaust air flue littler than other structure firing chamber face; Effectively reduce the resistance of intake and exhaust, make intake and exhaust more smooth and easy, improve petrol engine power effectively; Further be beneficial to and reduce fuel consumption rate and discharging; Power can improve about 200W, and fuel consumption rate reduces about 5%, and discharging reaches the standard of EPA3 stage 8g/kW.h; This shows that petrol engine power of the present invention improves and discharging reduces comparatively obvious.
Cylinder head of the present invention is used for petrol engine, and energy saving also reduces consumption.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Fig. 1 is the structural representation of cylinder head of the present invention firing chamber;
Fig. 2 is a cylinder head rocking arm layout schematic representation of the present invention;
Fig. 3 is a rocker arm bracket layout schematic representation of the present invention;
Fig. 4 is a pitman arm shaft and the view in transverse section that cooperates of rocker arm bracket.
Embodiment
Fig. 1 is the structural representation of cylinder head of the present invention firing chamber; Fig. 2 is a cylinder head rocking arm layout schematic representation of the present invention; Fig. 3 is a rocker arm bracket layout schematic representation of the present invention, and Fig. 4 is a pitman arm shaft and the view in transverse section that cooperates of rocker arm bracket, and is as shown in the figure: the cylinder head of many spheres firing chamber of present embodiment; Comprise cylinder head body 1 and the gas-entered passageway 9, exhaust passage 5 and the spark plug mounting hole 8 that are arranged at the cylinder head body; The cylinder head body 1 inboard firing chamber face 7 that forms, said firing chamber face by three tangent successively formation of sphere, is respectively sphere Ia, sphere IIb and sphere IIIc from bottom to top; The radius of said sphere IIb is greater than the radius of sphere Ia, and the radius of said sphere IIIc is greater than the radius of sphere IIb; Spherical radius promptly is the radius of the spheroid that sphere constituted.
In the present embodiment, said sphere Ia, sphere IIb and the shared firing chamber of sphere IIIc face 7 ratios are 1: 3: 2 by width; The petrol engine dynamic test of the firing chamber face 7 of this ratio is most effective, discharges minimumly, reduces fuel consume and reaches 6.5%, and enhancing power of gasoline engine surpasses 200W than existing single sphere firing chamber.
In the present embodiment; On the said cylinder head body 1 with the gas-entered passageway 9 corresponding intake valves 11 that are provided with; With the exhaust passage 5 corresponding exhaust valves 4 that are provided with; Said intake valve 11 is respectively equipped with rocking arm (inlet valve rocker 13 and exhaust valve rocker arm 16 as shown in the figure) with exhaust valve 4; On the said cylinder head body 1 with corresponding one by one two rocker arm brackets (inlet valve rocker seat 12 and exhaust valve rocker arm seat 17) that are provided with of two rocking arms (inlet valve rocker 13 with exhaust valve rocker arm 16); Said two rocking arms (inlet valve rocker 13 and exhaust valve rocker arm 16) are respectively equipped with the telescoping groove that supplies corresponding rocker arm bracket top to embed; Two rocking arms (inlet valve rocker 13 and exhaust valve rocker arm 16) are articulated in the rocker arm bracket corresponding with it (inlet valve rocker seat 12 and exhaust valve rocker arm seat 17) top by the pitman arm shaft that passes the telescoping groove two side (inlet valve rocker axle 14 and exhaust valve rocker arm axle 15) single-degree-of-freedom respectively; Formation is the lever construction of fulcrum with pitman arm shaft (inlet valve rocker axle 14 and exhaust valve rocker arm axle 15); As shown in the figure, the power point of two lever constructions is by each self-corresponding top rod driving, and the resistance point of two lever constructions is respectively to being applied to open or close intake valve 11 or exhaust valve 4; Form stable driving structure; For reducing rotational resistance, the telescoping groove on said two rocking arms (inlet valve rocker 13 and exhaust valve rocker arm 16) is groove, and the top of two rocker arm brackets (inlet valve rocker seat 12 and exhaust valve rocker arm seat 17) is exposed through the telescoping groove corresponding with it and is respectively equipped with the oilhole (being intake rocker seat oilhole 18 and exhaust rocker arm seat oilhole 19 among the figure) that connects to pitman arm shaft; Oilhole on said inlet valve rocker seat 12 and the exhaust valve rocker arm seat 17 (intake rocker seat oilhole 18 and exhaust rocker arm seat oilhole 19) is used to make lubricant oil to get into the rubbing surface between inlet valve rocker axle 14 and exhaust valve rocker arm axle 15 and inlet valve rocker seat 12 and the exhaust valve rocker arm seat 17; Reduce friction factor, increase the running precision and the stability of rocking arm; Be provided with the hinged rocking arm of structure of telescoping groove through rocking arm; Can reduce the transverse dimension of rocker arm bracket greatly; Occupy less space, be applicable to that small volume, small displacement engine use, and avoid because the engine cylinder head area is not suitable for the structure that installs and fixes the hinged rocking arm of rocker arm bracket for a short time; Rocking arm of the present invention is in running, and the play of its all directions or rolling momentum are little, can effectively reduce the rate of fault of rocking arm, reduces maintenance cost; The reasonable Arrangement rocking arm is come in the position that is adapted to intake and exhaust, also is beneficial to guarantee to guarantee port timing valve timing, thereby improves performance and reduce discharging;
In the present embodiment, be positioned on the said firing chamber face 7 around the seat ring 10 of intake valve 11 with the seat ring that is positioned at exhaust valve 43 and be respectively the concordant plane of seat ring 3 inner ends with seat ring 10 inner ends and the exhaust valve 4 of intake valve 11 on every side; Eliminate step, reduce interference, reduce resistance, eliminate the sudden change of dead angle and shape, guarantee the abundant burning of mixed gas, improve petrol engine efficient air inlet and exhaust.
In the present embodiment, to gas-entered passageway 9 tilt, exhaust valve 4 to exhaust passage 5 tilt, forms the inclined valve structure by bottom to top to said intake valve 11 by bottom to top; Because valve is tilting, can make the middle bridge of the nose district of intake and exhaust channel wideer, be beneficial to cooling; Increase non-deformability, cooperate, improved the cooling effect in bridge of the nose district greatly with complete unimpeded cooling duct 2; Reduce cylinder head distortion at high temperature, improved reliability; Simultaneous adaptation is in many spheres firing chamber, and the angle between inlet and exhaust valve and the intake and exhaust air flue is littler than existing structure firing chamber face, is convenient to organize air inlet; Improve intake efficiency; Be convenient to roll stream and intake swirl, increase flow perturbation in the cylinder, accelerate burning in the air inlet of cylinder inner tissue; Reduce the resistance of intake and exhaust, make intake and exhaust more smooth and easy, be beneficial to and improve petrol engine power, be beneficial to raising power, reduce fuel consume, reduce exhaust emissions, the protection environment; Two pitman arm shafts (inlet valve rocker axle 14 and exhaust valve rocker arm axle 15) radially inwardly are obliquely installed to the top with respect to cylinder head body attachment face, radially inwardly be meant by around the cylinder head to the direction of its radial centre lines; The angle of inclination of said pitman arm shaft (inlet valve rocker axle 14 and exhaust valve rocker arm axle 15) is corresponding identical with the angle of inclination of intake valve and exhaust valve; The pitman arm shaft that is obliquely installed can be adapted to the inclined valve structure and be adapted to the geometrical shape of composite sphere firing chamber, is beneficial to guarantee that rocking arm drives the harmony and the sealing of valve event.
In the present embodiment, said intake valve 11 axis and exhaust valve 4 axis are respectively perpendicular to the tangent plane of firing chamber face 7 with its crosspoint; The radial centre lines of axes intersect face in the firing chamber of intake valve 11 and exhaust valve 4 just adapts with the intake and exhaust direction of firing chamber, reduces resistance, increases the power character of petrol engine.
In the present embodiment, be positioned at the air-cooled passage 2 of spark plug that spark plug mounting hole 8 sides are provided with perforation on the said cylinder head body 1; Make that through air-cooled spark plug and cylinder body itself are cooled off preferably, avoid occurring that spark plug reduces the problem in working life in the existing technology owing to high temperature.
In the present embodiment, said cylinder head body 1 outer surface is provided with radiating fin 6, and said radiating fin 6 extends to exhaust passage 5 outer walls; Can effectively reduce delivery temperature, be beneficial to the vent gas treatment parts in the protection vent systems, further reduce discharging, be beneficial to environmental protection.
The invention also discloses a kind of petrol engine of using the cylinder head of many spheres firing chamber; The cylinder head of said many spheres firing chamber is installed on petrol engine; Said petrol engine is applied to motorcycle or universal machine, and universal machine comprises pump, blower fan, compressor, subtracts variable-speed motor, generator or the like.
Explanation is at last; Above embodiment is only unrestricted in order to technological scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technological scheme of the present invention; And not breaking away from the aim and the scope of technological scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. the cylinder head of sphere firing chamber more than a kind; Comprise cylinder head body and the gas-entered passageway, exhaust passage and the spark plug mounting hole that are arranged at the cylinder head body; The inboard firing chamber face that forms of cylinder head body, it is characterized in that: said firing chamber face is followed successively by sphere I, sphere II and sphere III by three tangent successively formation of sphere by the bottom to the top; The radius of said sphere II is greater than the radius of sphere I, and the radius of said sphere III is greater than the radius of sphere II.
2. the cylinder head of many spheres according to claim 1 firing chamber is characterized in that: said sphere I, sphere II and the shared firing chamber of sphere III face ratio are 1: 3: 2 by width.
3. the cylinder head of many spheres according to claim 1 and 2 firing chamber; It is characterized in that: the corresponding intake valve that is provided with gas-entered passageway on the said cylinder head body; The corresponding exhaust valve that is provided with the exhaust passage; Said intake valve and exhaust valve are respectively equipped with rocking arm; Be provided with two rocker arm brackets with two rocking arms are corresponding one by one on the said cylinder head body, said two rocking arms are respectively equipped with the telescoping groove that supplies corresponding rocker arm bracket top to embed, and it is the lever construction of fulcrum that two rocking arms are articulated in by the pitman arm shaft single-degree-of-freedom of passing the telescoping groove two side that the rocker arm bracket top corresponding with it form with the pitman arm shaft respectively.
4. the cylinder head of many spheres according to claim 3 firing chamber is characterized in that: be positioned on the face of said firing chamber around the seat ring of intake valve with the seat ring that is positioned at exhaust valve and be respectively the concordant plane of seat ring inner end with the seat ring inner end and the exhaust valve of intake valve on every side.
5. the cylinder head of many spheres according to claim 4 firing chamber is characterized in that: said intake valve by bottom to top to the gas-entered passageway tilt, exhaust valve by bottom to top to the exhaust passage tilt; Two pitman arm shafts radially inwardly are obliquely installed to the top with respect to cylinder head body attachment face, and the angle of inclination of said pitman arm shaft is corresponding identical with the angle of inclination of intake valve and exhaust valve.
6. the cylinder head of many spheres according to claim 5 firing chamber is characterized in that: said intake valve axis and exhaust valve axis are respectively perpendicular to the tangent plane of firing chamber face and its crosspoint.
7. the cylinder head of many spheres according to claim 6 firing chamber is characterized in that: be positioned at the air-cooled passage of spark plug that the spark plug mounting hole side is provided with perforation on the said cylinder head body.
8. the cylinder head of many spheres according to claim 7 firing chamber is characterized in that: said this external surface of cylinder head is provided with radiating fin, and said radiating fin extends to the exhaust passage outer wall.
9. the cylinder head of many spheres according to claim 8 firing chamber is characterized in that: the telescoping groove on said two rocking arms is groove, and the top of two rocker arm brackets is exposed through the telescoping groove corresponding with it and is respectively equipped with the oilhole that connects to pitman arm shaft.
10. an application rights requires the petrol engine of the cylinder head of the described many spheres of 1 to 9 arbitrary claim firing chamber, and it is characterized in that: the cylinder head of said many spheres firing chamber is installed on petrol engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102781806A CN102392750B (en) | 2011-09-19 | 2011-09-19 | Cylinder end with multi-spherical surface combustion chamber and gasoline engine thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102781806A CN102392750B (en) | 2011-09-19 | 2011-09-19 | Cylinder end with multi-spherical surface combustion chamber and gasoline engine thereof |
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| CN102392750A true CN102392750A (en) | 2012-03-28 |
| CN102392750B CN102392750B (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102781806A Active CN102392750B (en) | 2011-09-19 | 2011-09-19 | Cylinder end with multi-spherical surface combustion chamber and gasoline engine thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200958420Y (en) * | 2006-09-21 | 2007-10-10 | 广州从化市华林企业发展有限公司 | Economical environmental-protective engine of motorcycle |
| CN200975277Y (en) * | 2006-11-29 | 2007-11-14 | 浙江钱江摩托股份有限公司 | Burning chamber of motorcycle engine |
| CN201137515Y (en) * | 2008-01-03 | 2008-10-22 | 李榕炘 | Strong-flexibility helical-flow combustion chamber of air cylinder head |
| CN202391552U (en) * | 2011-09-19 | 2012-08-22 | 隆鑫通用动力股份有限公司 | Composite surface combustion chamber cylinder head and gasoline engine thereof |
-
2011
- 2011-09-19 CN CN2011102781806A patent/CN102392750B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200958420Y (en) * | 2006-09-21 | 2007-10-10 | 广州从化市华林企业发展有限公司 | Economical environmental-protective engine of motorcycle |
| CN200975277Y (en) * | 2006-11-29 | 2007-11-14 | 浙江钱江摩托股份有限公司 | Burning chamber of motorcycle engine |
| CN201137515Y (en) * | 2008-01-03 | 2008-10-22 | 李榕炘 | Strong-flexibility helical-flow combustion chamber of air cylinder head |
| CN202391552U (en) * | 2011-09-19 | 2012-08-22 | 隆鑫通用动力股份有限公司 | Composite surface combustion chamber cylinder head and gasoline engine thereof |
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| CN102392750B (en) | 2013-08-14 |
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