CN2737961Y - Combustion chamber structure for petrol engine - Google Patents
Combustion chamber structure for petrol engine Download PDFInfo
- Publication number
- CN2737961Y CN2737961Y CN 200420105100 CN200420105100U CN2737961Y CN 2737961 Y CN2737961 Y CN 2737961Y CN 200420105100 CN200420105100 CN 200420105100 CN 200420105100 U CN200420105100 U CN 200420105100U CN 2737961 Y CN2737961 Y CN 2737961Y
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- chamber structure
- petrol
- gas
- petrol engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Combustion Methods Of Internal-Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a combustion chamber structure for petrol engine. The gas inlet side and the gas outlet side of the combustion chamber are designed as rectangles, and the other two sides are designed as circular arcs; the slope on the gas inlet side is vertical to the axis of a gas inlet gate, and the slope on the gas outlet side is vertical to the axis of a gas outlet gate. The combustion chamber structure for petrol engine can guarantee the enough space for arranging and mounting the petrol injecting nozzle of a direct injection engine, and meanwhile, the good slopes for squishing gas are provided, so that the fuel gas can be formed into the optimal mixed petrol turbulence modality, and high combustion efficiency can be realized.
Description
Technical field:
The utility model relates to the chamber structure that engine cylinder covers, the petrolic chamber structure of particularly straight spray.
Background technique:
Gasoline injection is a kind of effective ways that the petrol engine mixed gas forms, the development trend that now oriented especially cylinder inner high voltage sprays.Need to arrange inlet and exhaust valve, spark plug, fuel nozzle in the cylinder, the space is very compact, and mutual location matches directly influences engine performance, how to solve above two key issues, be related to the most crucial combustion performance of motor, directly influence power, the discharging of motor.The inlet and outlet side of existing firing chamber is circular arc, makes that the surface to volume ratio of firing chamber is bigger, and flame travel is far away during fuel combustion, and radiation loss is big, and chill area is big, makes the HC discharge capacity big; The inclined-plane of inlet and outlet side is unfavorable for motor fine formation squish eddy current under the slow-speed of revolution, low-load, has influenced the Economy of engine knock and discharging.
Summary of the invention:
The purpose of this utility model is to propose a kind of improved chamber structure at the deficiency of the chamber structure existence of available engine cylinder cap, improves the combustion performance of motor.The technical solution of the utility model is as follows:
A kind of chamber structure of petrol engine, the inlet and outlet side of its firing chamber is designed to square, and all the other both sides are circular arc.
Further, with firing chamber air inlet skew back face perpendicular to the intake valve axis designs; The exhaust side inclined-plane is also perpendicular to the exhaust valve axis designs.
The firing chamber of said structure possesses good squish inclined-plane in the oil nozzle that guarantees to have enough spatial arrangement that direct fuel-injection engine is installed, can make the mixture turbulence mode of fuel vapor in the sorrow of indoor formation, realizes high combustion efficiency.
Description of drawings:
Fig. 1 is the transverse cross-sectional view of engine chamber.
Fig. 2 is the plan view of engine chamber.
Embodiment:
The chamber structure of this petrol engine is referring to Fig. 1 and Fig. 2, and firing chamber inlet and outlet side E and F are square, and all the other both sides G, H are circular arc.Air inlet skew back face C is perpendicular to intake valve axis A; Exhaust side inclined-plane D is perpendicular to exhaust valve axis B.
Claims (2)
1. the chamber structure of a petrol engine, it is characterized in that: the inlet and outlet side of firing chamber is square, all the other both sides are circular arc.
2. the chamber structure of petrol engine according to claim 1, it is characterized in that: firing chamber air inlet skew back face is perpendicular to the intake valve axis; The exhaust side inclined-plane is perpendicular to the exhaust valve axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420105100 CN2737961Y (en) | 2004-11-09 | 2004-11-09 | Combustion chamber structure for petrol engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420105100 CN2737961Y (en) | 2004-11-09 | 2004-11-09 | Combustion chamber structure for petrol engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2737961Y true CN2737961Y (en) | 2005-11-02 |
Family
ID=35347871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420105100 Expired - Lifetime CN2737961Y (en) | 2004-11-09 | 2004-11-09 | Combustion chamber structure for petrol engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2737961Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305126A (en) * | 2011-03-14 | 2012-01-04 | 隆鑫通用动力股份有限公司 | Gasoline engine and inclined air valve cylinder head for same |
| CN102518503A (en) * | 2011-12-19 | 2012-06-27 | 力帆实业(集团)股份有限公司 | Gas passage and combustion chamber structure of three-valve engine |
-
2004
- 2004-11-09 CN CN 200420105100 patent/CN2737961Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305126A (en) * | 2011-03-14 | 2012-01-04 | 隆鑫通用动力股份有限公司 | Gasoline engine and inclined air valve cylinder head for same |
| CN102518503A (en) * | 2011-12-19 | 2012-06-27 | 力帆实业(集团)股份有限公司 | Gas passage and combustion chamber structure of three-valve engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING CHANG AN AUTOMOBILE CO., LTD. Free format text: FORMER OWNER: CHANGAN AUTOMOBILE (GROUP) CO., LTD. Effective date: 20060707 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060707 Address after: 400023, No. 260, Jianxin East Road, Jiangbei District, Chongqing Patentee after: Chongqing Changan Automobile Co., Ltd. Address before: 400023, No. 260, Jianxin East Road, Jiangbei District, Chongqing Patentee before: Chang'an Automobile (Group) Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141109 Granted publication date: 20051102 |