CN1563681A - Igniting combustion system of engine preburning chamber - Google Patents
Igniting combustion system of engine preburning chamber Download PDFInfo
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- CN1563681A CN1563681A CNA2004100214327A CN200410021432A CN1563681A CN 1563681 A CN1563681 A CN 1563681A CN A2004100214327 A CNA2004100214327 A CN A2004100214327A CN 200410021432 A CN200410021432 A CN 200410021432A CN 1563681 A CN1563681 A CN 1563681A
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- precombustion chamber
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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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- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The ignition petrol engine combustion system applied high constringent ratio and high fuel ratio, multiple hole sprayer installed in the main combustor spout accessorial oil beam into the precombustion chamber formed hyper concentration mix air, while the main oil beam only forms into dilute mix air in the main combustor, through high constringent ratio is applied. The total fuel ratio is still very high. To ensure the ignition, the economy of the motor and ventilate contamination are improved.
Description
Technical field
The present invention relates to a kind of spark-ignition engine precombustion chamber combustion 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, so the more difficult spontaneous combustion of gaseous fuels such as gasoline or LPG is the combustion manner that this class A fuel A motor 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 motor less economical, and generate a large amount of CO; The 2nd, theory and practice all proves, improves compression ratio and is and improve the effective method of this class engine thermal efficiency, but be subjected to the restriction of malcombustion such as detonation and exhaust pollution.The effective thermal efficiency of spark-ignition engine can not show a candle to compression-ignited diesel engine at present.In order to solve the problem of spark-ignition engine Economy and exhaust pollution, it is crucial that the research spark-ignition engine adopts new combustion manner.
Summary of the invention
In order to solve above-mentioned spark-ignition engine mixture strength narrow range and the problem that can not adopt higher compression ratios, the invention provides a kind of spark-ignition engine precombustion chamber combustion 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 spark-ignition 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 spark-ignition engine precombustion chamber combustion system, it mainly is made up of main combustion chamber and a precombustion chamber that is located in the cylinder head that cylinder head, piston and a cylinder liner are formed.A multiport nozzle stretches in the precombustion chamber, the fuel of nozzle ejection is by auxilliary fuel cluster and main fuel Shu Zucheng, the main fuel bundle directly enters main combustion chamber from the outlet of precombustion chamber, the spark plug that is contained in the precombustion chamber is very easily lighted the Over-rich mixture that is formed by auxilliary fuel cluster in precombustion chamber, the high-temperature high-pressure fuel gas that is burning pours main combustion chamber through the precombustion chamber outlet, light the weak mixture that in main combustion chamber, forms by the main fuel bundle, realize the rapid perfect combustion of mixed gas of high compression ratio and high air-fuel ratio.The compression ratio of this combustion system is 9-20,, air fuel ratio is 16-40.
The guiding theory of technique scheme is: auxilliary fuel cluster forms the rich mixture of very easily lighting around spark plug, in precombustion chamber, form mixed once and burning, the high-temperature high-pressure fuel gas that burning produces pours main combustion 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: only in precombustion chamber, form Over-rich mixture owing to be installed in the auxilliary fuel cluster of the multiport nozzle ejection in the precombustion chamber, and the main fuel bundle only forms weak mixture in main combustion 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 14, and total air-fuel ratio is 21 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 III standard.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is an embodiment's of spark-ignition engine precombustion chamber combustion system a longitudinal section tectonic maps.
Fig. 2 is the zoomed-in view of precombustion chamber part.
Among the figure: 1, cylinder head, 2, piston, 3, cylinder liner, 4, main combustion chamber, 5, precombustion chamber, 6, spark plug, 7, the edge body, 8, nozzle, 9, precombustion chamber inserts, 10, auxilliary fuel cluster, 11, the precombustion chamber outlet, 12, the main fuel bundle.
Embodiment
In the embodiment shown in Fig. 1,2, form a main combustion chamber 4 by cylinder head 1, piston 2 and cylinder liner 3, be provided with a precombustion chamber 5 in cylinder head 1, precombustion chamber 5 is combined by the bottom of 9 inner chamber and the precombustion chamber edge body 7 of inserting, and 9 bottoms of inserting are provided with precombustion chamber outlet 11.Spark plug 6 and nozzle 8 are installed on the edge body 7, but head all stretches in the precombustion chamber 5, the auxilliary fuel cluster of nozzle 8 ejections only forms rich mixture in precombustion chamber 5, be beneficial to spark plug 6 and light, and the direct directive precombustion chamber outlet 11 of main fuel bundle is gone forward side by side into main combustion chamber 4 formation weak mixtures.The compression ratio that this embodiment adopts is 14, and total air-fuel ratio is 21.
Claims (2)
1. spark-ignition engine precombustion chamber combustion system, it is mainly by a cylinder head (1), the main combustion chamber (4) that piston (2) and cylinder liner (3) are formed and a precombustion chamber (5) that is located in the cylinder head (1) are formed, it is characterized in that: a multiport nozzle (8) stretches in the precombustion chamber (5), the fuel cluster of nozzle (8) ejection is made up of auxilliary fuel cluster (10) and main fuel bundle (12), main fuel bundle (12) directly enters main combustion chamber (4) from precombustion chamber outlet (11), the spark plug (6) that is contained in the precombustion chamber (5) is very easily lighted the Over-rich mixture that is formed by auxilliary fuel cluster (10) in precombustion chamber (5), the high-temperature high-pressure fuel gas that is burning pours main combustion chamber (4) through precombustion chamber outlet (11), light the weak mixture that forms at main combustion chamber (4) by main fuel bundle (12), realize the rapid perfect combustion of mixed gas of high compression ratio and high air-fuel ratio.
2. according to the described spark-ignition engine precombustion chamber of claim 1 combustion system, it is characterized in that: compression ratio is 9-20,, air fuel ratio is 16-40.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100214327A CN1316154C (en) | 2004-03-18 | 2004-03-18 | Igniting combustion system of engine preburning chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100214327A CN1316154C (en) | 2004-03-18 | 2004-03-18 | Igniting combustion system of engine preburning chamber |
Publications (2)
| Publication Number | Publication Date |
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| CN1563681A true CN1563681A (en) | 2005-01-12 |
| CN1316154C CN1316154C (en) | 2007-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100214327A Expired - Fee Related CN1316154C (en) | 2004-03-18 | 2004-03-18 | Igniting combustion system of engine preburning chamber |
Country Status (1)
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| CN (1) | CN1316154C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858245A (en) * | 2010-04-28 | 2010-10-13 | 大连理工大学 | Combustion system of large gas fuel engine |
| CN102953800A (en) * | 2012-11-07 | 2013-03-06 | 镇江恒驰科技有限公司 | Ignition method of pre-combustion chamber of diesel-dual-fuel engine |
| CN103422970A (en) * | 2013-07-17 | 2013-12-04 | 广州柴油机厂股份有限公司 | Ignition device of gas engine utilizing precombustion chamber |
| CN106103933A (en) * | 2014-03-13 | 2016-11-09 | 瓦锡兰芬兰有限公司 | Pre-chamber arrangement, cylinder head and piston engine |
| CN107091145A (en) * | 2017-06-07 | 2017-08-25 | 哈尔滨工程大学 | A kind of precombustion chamber of marine large-diameter gas engine |
| CN110486142A (en) * | 2018-05-15 | 2019-11-22 | 通用汽车环球科技运作有限责任公司 | Variable volume precombustion chamber for internal combustion engine |
| CN112211714A (en) * | 2020-11-27 | 2021-01-12 | 山东交通学院 | Shock wave combustion-supporting precombustion chamber structure of gas engine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4204484A (en) * | 1975-06-24 | 1980-05-27 | Toyota Jidosha Kogyo Kabushiki Kaisha | Auxiliary combustion chamber of internal combustion engine |
| JPS61182416A (en) * | 1985-02-07 | 1986-08-15 | Mitsubishi Motors Corp | Subchamber type combustion chamber |
| DE10217996A1 (en) * | 2002-04-23 | 2003-11-13 | Man B & W Diesel Ag | Self-igniting mixture-compressing internal combustion engine and method for its operation |
| CN2570482Y (en) * | 2002-09-29 | 2003-09-03 | 天津大学 | Natural gas engine pre-ignition chamber built-in type gas supply apparatus |
-
2004
- 2004-03-18 CN CNB2004100214327A patent/CN1316154C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858245A (en) * | 2010-04-28 | 2010-10-13 | 大连理工大学 | Combustion system of large gas fuel engine |
| CN102953800A (en) * | 2012-11-07 | 2013-03-06 | 镇江恒驰科技有限公司 | Ignition method of pre-combustion chamber of diesel-dual-fuel engine |
| CN103422970A (en) * | 2013-07-17 | 2013-12-04 | 广州柴油机厂股份有限公司 | Ignition device of gas engine utilizing precombustion chamber |
| CN103422970B (en) * | 2013-07-17 | 2015-09-30 | 广州柴油机厂股份有限公司 | A kind of ignition mechanism adopting the gas engine of precombustion chamber |
| CN106103933A (en) * | 2014-03-13 | 2016-11-09 | 瓦锡兰芬兰有限公司 | Pre-chamber arrangement, cylinder head and piston engine |
| CN107091145A (en) * | 2017-06-07 | 2017-08-25 | 哈尔滨工程大学 | A kind of precombustion chamber of marine large-diameter gas engine |
| CN110486142A (en) * | 2018-05-15 | 2019-11-22 | 通用汽车环球科技运作有限责任公司 | Variable volume precombustion chamber for internal combustion engine |
| CN112211714A (en) * | 2020-11-27 | 2021-01-12 | 山东交通学院 | Shock wave combustion-supporting precombustion chamber structure of gas engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1316154C (en) | 2007-05-16 |
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Granted publication date: 20070516 Termination date: 20100318 |