CN1265078C - Combustion system for igniting room of gasoline engine cylinder jacket - Google Patents
Combustion system for igniting room of gasoline engine cylinder jacket Download PDFInfo
- Publication number
- CN1265078C CN1265078C CNB200410050464XA CN200410050464A CN1265078C CN 1265078 C CN1265078 C CN 1265078C CN B200410050464X A CNB200410050464X A CN B200410050464XA CN 200410050464 A CN200410050464 A CN 200410050464A CN 1265078 C CN1265078 C CN 1265078C
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- CN
- China
- Prior art keywords
- room
- combustion
- igniting
- chamber
- cylinder jacket
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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 present invention relates to a combustion system for an igniting room of a direct injection-type gasoline engine cylinder jacket, which can use high compression ratio and high air-fuel ratio and belongs to the field of mixture formation and combustion of an engine. The upper part of the cylinder jacket is provided with an igniting room, and the top of the piston is provided with a combustion room. When the piston is near the top dead point, the combustion room on the top of the piston forms a main combustion room together with a cylinder cover. Auxiliary oil bundles ejected from a petrol jet enter the igniting room on the cylinder jacket to form overrich mixture, but main oil bundles form lean mixture only in the main combustion room. High temperature and pressure deflagrated fuel gas of the ignited rich mixture rushes to the main combustion room through a channel to carry out the secondary mix and combustion with the lean mixture in the main combustion room to realize the quick complete combustion with high compression ratio and high air-fuel ratio. Although the higher compression ratio is used, the total air-fuel ratio is high. The economical efficiency and the exhaust pollution of the engine are improved under the condition of ensuring the ignition.
Description
Technical field
The present invention relates to a kind of G. D. I engine cylinder liner ignition chamber burning system that adopts high compression ratio and high air-fuel ratio, it belongs to engine mixed gas and forms and combustion field.
Background technique
As everyone knows, gasoline is the good and fuel of more difficult spontaneous combustion of volatility, so the combustion manner that petrol engine adopts homogeneous charge and lights with external source always.So just there are two problems: the one, mixed gas narrow range during work, α=0.6～1.2 (A/F=9～18), and the work down of the rich mixture of the α that is everlasting＜1 must make petrol engine less economical, and generate a large amount of HC and CO; The 2nd, theory and practice all proves, improves compression ratio and is and improve the effective method of the petrol engine thermal efficiency, but be subjected to the restriction of malcombustion such as detonation and exhaust pollution.The effective thermal efficiency of petrol engine can not show a candle to diesel engine at present, and in order to solve the problem of petrol engine Economy and exhaust pollution, it is crucial that the research petrol engine adopts the direct injection combustion mode.
Summary of the invention
In order to solve above-mentioned petrol engine mixture strength narrow range and the problem that can not adopt higher compression ratios, the invention provides a kind of gasoline engine cylinder cover ignition chamber burning system, this combustion system adopts high compression ratio and high air-fuel ratio, employing matter is regulated, utilize local instantaneous low air fuel ratio, guarantee normal ignition and burning rapidly, to reach the thermal efficiency that improves petrol engine and the purpose that reduces exhaust pollution.
The technical solution adopted for the present invention to solve the technical problems is: a kind of gasoline engine cylinder cover ignition chamber burning system, it mainly is made up of a firing chamber and an igniting chamber, is provided with passage between igniting chamber and firing chamber.Be provided with an igniting chamber on cylinder liner top, on piston head, be provided with a firing chamber.The position of igniting chamber is provided with a passage that communicates with the firing chamber on piston head, passage can and the peripheral established law of firing chamber to and tangential between any angle arrange, the auxilliary oily beam that is installed in the petrol jet ejection on the cylinder head is gone in the igniting chamber, main oily beam is gone in the firing chamber, and the spark plug that is installed on the cylinder liner is arranged in igniting chamber.
The guiding theory of technique scheme is: auxilliary oil bundle forms the rich mixture of very easily lighting around spark plug, in igniting chamber, form mixed once and burning, the high-temperature high-pressure fuel gas that burning produces pours the firing chamber, form the secondary mixing and burning, because piston was crossed top dead center and was begun descendingly this moment, had controlled maximum combustion pressure effectively.
The invention has the beneficial effects as follows: enter the indoor formation Over-rich mixture of igniting owing to be installed in the auxilliary oil bundle of the porous petrol jet ejection in the firing chamber, and main oil bundle only forms weak mixture in the firing chamber, although adopted higher compression ratio, but total air fuel ratio is very big, guaranteeing to have improved the Economy and the exhaust pollution of motor under the situation of lighting.Evidence: compression ratio is 15, and total air-fuel ratio is 25 o'clock, and fuel consumption rate has obvious decline, even not worse than the diesel engine of separated type firing chamber, and pollution can reach European norm.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the longitudinal section tectonic maps of gasoline engine cylinder cover ignition chamber burning system.
Among the figure: 1, petrol jet, 2, cylinder head, 3, spark plug, 4, igniting chamber, 5, piston, 6, cylinder liner, 7, auxilliary oil bundle, 8, passage, 9, main oil bundle, 10, the firing chamber.
Embodiment
In the embodiment shown in fig. 1, form a firing chamber 10 by cylinder head 2, piston 5 and cylinder liner 6, be provided with an igniting chamber 4 on cylinder liner 6 tops, be provided with a passage 8 that communicates with firing chamber 10 in the position of the top of piston 5 igniting chamber 4, according to the requirement of tissue burning, passage 8 can and the peripheral established law of firing chamber 10 to and tangential between any angle arrange.The a branch of auxilliary oil bundle 7 that is installed in petrol jet 1 ejection on the cylinder head 2 is directly injected in the igniting chamber 4, the main oil bundle 9 of at least two bundles is injected in the firing chamber 10, auxilliary oil bundle 7 forms the rich mixture of very easily being lighted around the head that is installed in the spark plug 3 on the cylinder liner 6, the high-temperature high-pressure fuel gas of burning pours in the firing chamber 10 through passage 8 rapidly, restraint 9 weak mixtures that form with the main oil in the firing chamber 10 and carry out the secondary mixing and burning, realize the rapid perfect combustion of high compression ratio, high air-fuel ratio.Thereby reach the further index of improving power character, Economy and the exhaust emission of motor.The compression ratio that this embodiment adopts is 15, and total air-fuel ratio is 25, and the motor proper functioning is every functional.
Claims (1)
1. a gasoline engine cylinder overlaps ignition chamber burning system, it mainly is made up of a firing chamber and an igniting chamber, be provided with passage between igniting chamber and the firing chamber, it is characterized in that: be provided with an igniting chamber (4) on cylinder liner (6) top, on piston head, be provided with a firing chamber (10), the position of igniting chamber on piston head (4) is provided with a passage (8) that communicates with firing chamber (10), the auxilliary oil bundle (7) that is installed in petrol jet (1) ejection on the cylinder head (2) is injected in the igniting chamber (4), main oil bundle (9) is injected in the firing chamber (10), and the spark plug (3) that is installed on the cylinder liner (6) is arranged in igniting chamber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410050464XA CN1265078C (en) | 2004-09-17 | 2004-09-17 | Combustion system for igniting room of gasoline engine cylinder jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410050464XA CN1265078C (en) | 2004-09-17 | 2004-09-17 | Combustion system for igniting room of gasoline engine cylinder jacket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1587659A CN1587659A (en) | 2005-03-02 |
| CN1265078C true CN1265078C (en) | 2006-07-19 |
Family
ID=34602257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410050464XA Expired - Fee Related CN1265078C (en) | 2004-09-17 | 2004-09-17 | Combustion system for igniting room of gasoline engine cylinder jacket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1265078C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107698A (en) * | 2021-05-07 | 2021-07-13 | 东风柳州汽车有限公司 | Internal combustion engine |
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2004
- 2004-09-17 CN CNB200410050464XA patent/CN1265078C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1587659A (en) | 2005-03-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060719 Termination date: 20091019 |