CN102518528A - General petrol engine cylinder head and petrol engine - Google Patents
General petrol engine cylinder head and petrol engine Download PDFInfo
- Publication number
- CN102518528A CN102518528A CN2011104393699A CN201110439369A CN102518528A CN 102518528 A CN102518528 A CN 102518528A CN 2011104393699 A CN2011104393699 A CN 2011104393699A CN 201110439369 A CN201110439369 A CN 201110439369A CN 102518528 A CN102518528 A CN 102518528A
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- Prior art keywords
- cylinder head
- firing chamber
- engine cylinder
- gasoline engine
- petrol engine
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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
Abstract
The invention relates to a general petrol engine cylinder head and a petrol engine. The general petrol engine cylinder head comprises a cylinder head body, an inlet valve, an exhaust valve and a spark plug installation hole, wherein the inlet valve, the exhaust valve and the spark plug installation hole are arranged in the cylinder head body. The inner side of the cylinder head body forms a combustion chamber face. The general petrol engine cylinder head is characterized in that the cross section of the combustion chamber face is in an oblate shape formed by connecting two sections of radially opposite long arcs and two sections of radially opposite short arcs. The cross section of the combustion chamber face of the cylinder head is in the oblate shape so as to facilitate circling mixing and combustion of mixed gas, combustion efficiency can be improved, pollutant emission of the petrol engine is reduced, operation efficiency of the petrol engine is improved, fuel is saved, and use cost is reduced.
Description
Technical field
The present invention relates to a kind of universal machine appurtenances, particularly a kind of general gasoline engine cylinder head and petrol engine thereof.
Background technique
Petrol engine is a general dynamic machinery.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, corresponding intake valve and the exhaust valve of being equipped with, and its inboard has the firing chamber face and cylinder is formed the firing chamber jointly, thereby, belong to the parts of petrol engine outbalance.Oil plant act as a fuel with AIR MIXTURES in the firing chamber internal combustion, produce great amount of heat, be used for as driving energy.Thereby the parameter of firing chamber is the necessary condition that guarantees the efficient operation of petrol engine.
In the existing technology, fully mixing and moving towards and incompatible of the firing chamber face of cylinder head and mixed gas makes mixed gas have some setbacks from the whole process of mixing, air inlet, burning and exhaust, influences the operation level that petrol engine is brought into normal play.
Therefore, need improve the firing chamber of petrol engine cylinder head, adopt rational firing chamber face structure, can improve combustion efficiency, reduce the pollutant discharge amount of petrol engine, thereby improve the operational efficiency of petrol engine, fuel saving reduces user cost.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of general gasoline engine cylinder head and petrol engine thereof, adopt rational firing chamber face structure; Can improve combustion efficiency, reduce the pollutant discharge amount of petrol engine, thereby improve the operational efficiency of petrol engine; Fuel saving reduces user cost.
General gasoline engine cylinder head of the present invention; Comprise cylinder head body and the intake valve, exhaust valve 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 lateral cross section serve as reasons two radially relative segment length's circular arcs and the two sections short radially relative oblate shapes that circular arc is connected to form.
Further, be connected smoothly between said two segment length's circular arcs and the adjacent short circular arc; Guarantee that the smooth and easy of mixed gas and gas of combustion flows, and the stress that reduces cylinder head is concentrated.
Further, the face firing chamber that constitutes in said firing chamber is a wedge shape on the cross section perpendicular to the intake valve and the exhaust valve line of centres; Be beneficial to mixed gas and fully mix, reach mixed effect preferably, thereby be beneficial to burning.
Further, the face firing chamber that constitutes in said firing chamber is arc on the cross section that is parallel to intake valve and the exhaust valve line of centres; Guarantee the well-mixed while, be beneficial to smooth and easy air intake-exhaust, guarantee the efficient operation of petrol engine.
Further, the wedge-like tip of said firing chamber face and cylinder head body end face pass to few one section circular arc and seamlessly transit; When avoiding stress to concentrate, be beneficial to the smooth and easy of intake and exhaust and carry out, thus the efficient operation of assurance petrol engine.
Further, the wedge shape and the angle between the cylinder head body end face of said firing chamber face are 10 °-15 °; This angular range is beneficial to and makes mixed gas form disturbance effect preferably, fully mixes after-combustion, has higher combustion efficiency.
Further, the axis of the oblate shape that the short circular arc in said two segment length's circular arcs and two ends is connected to form is in the intake valve and the exhaust valve line of centres, and minor axis is perpendicular to the intake valve and the exhaust valve line of centres; The flow direction that further is suitable for gas increases gas travel, guarantees sufficient combustion.
Further, said spark plug mounting hole is positioned at the wedge-like tip of firing chamber face; Adapt to flowing and combustion law of mixed gas preferably, be beneficial to mixed gas and fully burn.
Further, be connected smoothly through circular arc between said two segment length's circular arcs and the adjacent short circular arc, avoid stress to concentrate, sharp with make, be beneficial to the smoothness of air inlet and exhaust simultaneously.
The invention also discloses a kind of petrol engine of using general gasoline engine cylinder head, said general gasoline engine cylinder head is installed on petrol engine.
The invention has the beneficial effects as follows: general gasoline engine cylinder head of the present invention and petrol engine thereof; The lateral cross section of cylinder head firing chamber face is oblate, is beneficial to the circuitous mixing and the burning of mixed gas, can improve combustion efficiency; Reduce the pollutant discharge amount of petrol engine; Thereby improve the operational efficiency of petrol engine, fuel saving reduces user cost.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Fig. 1 is a structural perspective of the present invention;
Fig. 2 be Fig. 1 along A-A to sectional view.
Embodiment
Fig. 1 is a structural perspective of the present invention; Fig. 2 be Fig. 1 along A-A to sectional view; As shown in the figure: the general gasoline engine cylinder head of present embodiment; Comprise cylinder head body 1 and the intake valve 3, exhaust valve 7 and the spark plug mounting hole 5 that are arranged at cylinder head body 1; The inboard firing chamber face 9 that forms of cylinder head body 1, said firing chamber face 9 lateral cross section (being parallel to the end face that the cylinder head body is connected with cylinder body) the oblate shape that two radially relative segment length's circular arcs (oval arc 6 and oval arc 10) and radially relative two sections short circular arcs (weak point circular arc 2 and weak point circular arc 8) are connected to form of serving as reasons, oblate shape comprises sub-elliptical and ellipse.
In the present embodiment, be connected smoothly between said two segment length's circular arcs (oval arc 6 and oval arc 10) and the adjacent short circular arc (short circular arc 2 with lack circular arc 8); Guarantee that the smooth and easy of mixed gas and gas of combustion flows, and the stress that reduces cylinder head is concentrated.
In the present embodiment, the firing chamber that said firing chamber face 9 constitutes is a wedge shape 11 on the cross section perpendicular to the intake valve 3 and exhaust valve 7 lines of centres; Be beneficial to mixed gas and fully mix, reach mixed effect preferably, thereby be beneficial to burning.
In the present embodiment, the firing chamber that said firing chamber face 9 constitutes is arc (not expression among the figure) on the cross section that is parallel to the intake valve 3 and exhaust valve 7 lines of centres; Guarantee the well-mixed while, be beneficial to smooth and easy air intake-exhaust, guarantee the efficient operation of petrol engine.
In the present embodiment, the wedge-like tip of said firing chamber face 9 and cylinder head body 1 end face seamlessly transit through at least one section circular arc 12, and present embodiment is two sections circular arcs; When avoiding stress to concentrate, be beneficial to the smooth and easy of intake and exhaust and carry out, thus the efficient operation of assurance petrol engine.
In the present embodiment; Angle between the wedge shape 11 of said firing chamber face 9 and cylinder head body 1 end face is 10 °-15 °, and present embodiment adopts 13 °, also processes the angle of 10 ° and 15 ° in the actual fabrication respectively; All can reach burning and emission effect preferably; This angular range is beneficial to and makes mixed gas form disturbance effect preferably, fully mixes after-combustion, has higher combustion efficiency.
In the present embodiment; The axis of the oblate shape that said two segment length's circular arcs (oval arc 6 and oval arc 10) and two sections short circular arcs (short circular arc 2 and short circular arc 8) are connected to form is in the intake valve 3 and exhaust valve 7 lines of centres, and minor axis is perpendicular to the intake valve 3 and exhaust valve 7 lines of centres; The flow direction that further is suitable for gas increases gas travel, guarantees sufficient combustion.
In the present embodiment, said spark plug mounting hole 5 is positioned at wedge shape 11 tops of firing chamber face 9; Adapt to flowing and combustion law of mixed gas preferably, be beneficial to mixed gas and fully burn.
In the present embodiment, be connected smoothly through circular arc between said two segment length's circular arcs (oval arc 6 and oval arc 10) and the adjacent short circular arc (short circular arc 2 and short circular arc 8), avoid stress to concentrate, sharp and manufacturing are beneficial to the smoothness of air inlet and exhaust simultaneously.
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 to technological scheme of the present invention or/and be equal to replacement; 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. general gasoline engine cylinder head; It is characterized in that: comprise cylinder head body and the intake valve, exhaust valve 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 is characterized in that: said firing chamber face lateral cross section serve as reasons two radially relative segment length's circular arcs and the two sections short radially relative oblate shapes that circular arc is connected to form.
2. general gasoline engine cylinder head according to claim 1 is characterized in that: be connected smoothly between said two segment length's circular arcs and the adjacent short circular arc.
3. general gasoline engine cylinder head according to claim 2 is characterized in that: the firing chamber that said firing chamber face constitutes is wedge shape on perpendicular to the cross section of the intake valve and the exhaust valve line of centres.
4. general gasoline engine cylinder head according to claim 3 is characterized in that: the firing chamber that said firing chamber face constitutes is arc on the cross section that is parallel to the intake valve and the exhaust valve line of centres.
5. general gasoline engine cylinder head according to claim 4 is characterized in that: the wedge-like tip of said firing chamber face and cylinder head body end face pass to few one section circular arc and seamlessly transit.
6. general gasoline engine cylinder head according to claim 5 is characterized in that: the angle between the wedge shape of said firing chamber face and the cylinder head body end face is 10 °-15 °.
7. general gasoline engine cylinder head according to claim 6; It is characterized in that: the axis of the oblate shape that said two segment length's circular arcs and two sections short circular arcs are connected to form is in the intake valve and the exhaust valve line of centres, and minor axis is perpendicular to the intake valve and the exhaust valve line of centres.
8. general gasoline engine cylinder head according to claim 7 is characterized in that: said spark plug mounting hole is positioned at the wedge-like tip of firing chamber face.
9. general gasoline engine cylinder head according to claim 8 is characterized in that: be connected smoothly through circular arc between said two segment length's circular arcs and the adjacent short circular arc.
10. an application rights requires the petrol engine of the described general gasoline engine cylinder head of 1 to 9 arbitrary claim, and it is characterized in that: said general gasoline engine cylinder head is installed on petrol engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104393699A CN102518528A (en) | 2011-12-23 | 2011-12-23 | General petrol engine cylinder head and petrol engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104393699A CN102518528A (en) | 2011-12-23 | 2011-12-23 | General petrol engine cylinder head and petrol engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102518528A true CN102518528A (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104393699A Pending CN102518528A (en) | 2011-12-23 | 2011-12-23 | General petrol engine cylinder head and petrol engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN102518528A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840336A (en) * | 2016-05-24 | 2016-08-10 | 力帆实业(集团)股份有限公司 | Cylinder head assembly of motorcycle engine |
| CN108798872A (en) * | 2018-06-21 | 2018-11-13 | 江苏大学 | Combustion chamber, cylinder head and miniature gasoline engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2903433Y (en) * | 2006-04-04 | 2007-05-23 | 重庆宗申技术开发研究有限公司 | Engine cylinder head |
| CN200964903Y (en) * | 2006-09-29 | 2007-10-24 | 重庆宗申技术开发研究有限公司 | Engine cylinder head |
| CN201771615U (en) * | 2010-07-05 | 2011-03-23 | 重庆嘉泰精密机械有限公司 | General gasoline engine cylinder end |
| CN102003304A (en) * | 2010-12-22 | 2011-04-06 | 重庆润通动力有限公司 | Combustion chamber structure on general petrol engine cylinder head |
| CN202451267U (en) * | 2011-12-23 | 2012-09-26 | 隆鑫通用动力股份有限公司 | Low emission gasoline engine cylinder head and gasoline engine thereof |
-
2011
- 2011-12-23 CN CN2011104393699A patent/CN102518528A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2903433Y (en) * | 2006-04-04 | 2007-05-23 | 重庆宗申技术开发研究有限公司 | Engine cylinder head |
| CN200964903Y (en) * | 2006-09-29 | 2007-10-24 | 重庆宗申技术开发研究有限公司 | Engine cylinder head |
| CN201771615U (en) * | 2010-07-05 | 2011-03-23 | 重庆嘉泰精密机械有限公司 | General gasoline engine cylinder end |
| CN102003304A (en) * | 2010-12-22 | 2011-04-06 | 重庆润通动力有限公司 | Combustion chamber structure on general petrol engine cylinder head |
| CN202451267U (en) * | 2011-12-23 | 2012-09-26 | 隆鑫通用动力股份有限公司 | Low emission gasoline engine cylinder head and gasoline engine thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105840336A (en) * | 2016-05-24 | 2016-08-10 | 力帆实业(集团)股份有限公司 | Cylinder head assembly of motorcycle engine |
| CN105840336B (en) * | 2016-05-24 | 2019-05-03 | 力帆实业(集团)股份有限公司 | Cylinder of motorcycle engine assembly |
| CN108798872A (en) * | 2018-06-21 | 2018-11-13 | 江苏大学 | Combustion chamber, cylinder head and miniature gasoline engine |
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Application publication date: 20120627 |