CN1605727A - Combustion system of compressed ignition gaseous propellant engine and composite air supply method thereof - Google Patents
Combustion system of compressed ignition gaseous propellant engine and composite air supply method thereof Download PDFInfo
- Publication number
- CN1605727A CN1605727A CNA2004100727258A CN200410072725A CN1605727A CN 1605727 A CN1605727 A CN 1605727A CN A2004100727258 A CNA2004100727258 A CN A2004100727258A CN 200410072725 A CN200410072725 A CN 200410072725A CN 1605727 A CN1605727 A CN 1605727A
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- gaseous propellant
- subsidiary
- propellant engine
- combustion system
- 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.)
- Granted
Links
Images
Classifications
-
- 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
-
- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The present invention discloses one kind of compressing ignition gas fuel engine burning system and its composite gas supplying method with electric control unit to control the open time and sustained jetting time of high pressure and low pressure jetting valve. The burning system includes cylinder head, work piston, gas inlet pipe and main combustion chamber. The separated auxiliary combustion chamber set on the cylinder head has channel communicated with the main combustion chamber in the lower part, electric heating plug in the side and electric control unit controlled high pressure gas jetting valve in the upper part. The electric control unit controlled low pressure gas jetting valve is set in the gas inlet pipe. The present invention has simple structure, no need of setting jetting valve between the main combustion chamber and the auxiliary combustion chamber, compressing ignition, raised compression ratio and high heat efficiency.
Description
Technical field
The present invention relates to a kind of combustion system of working piston formula internal-combustion engine, particularly a kind of combustion system of compressed ignition gaseous propellant engine, and a kind of composite air supply method that is used for above-mentioned combustion system with subsidiary combustion chamber.
Background technique
At present, the report of the internal-combustion engine of relevant band subsidiary combustion chamber is a lot, the disclosed a kind of band subsidiary combustion chamber fuel injection type internal combustion engine of Chinese patent ZL98108338.2 for example, this internal-combustion engine subsidiary combustion chamber is connected with main combustion chamber, for finishing igniting process in the subsidiary combustion chamber, this internal-combustion engine be provided with the pressure accumulating chamber adjacent with subsidiary combustion chamber, with fuel spray into pressure accumulating chamber Fuelinjection nozzle, be communicated with the air valve that mixes of pressure accumulating chamber and subsidiary combustion chamber and spark ignition plug.Above-mentioned mixed air valve is injected into subsidiary combustion chamber with fuel and compressed-air actuated mixed gas, by the igniter plug in the subsidiary combustion chamber mixed air is lighted.Its deficiency is to be provided with pressure accumulating chamber and to mix air valve, complex structure; Adopt spark ignition mode, reduced the compression ratio and the thermal efficiency, increased specific fuel consumption.
Summary of the invention
The present invention has overcome the deficiency that complex structure, compression ratio and the thermal efficiency are low in the prior art, specific fuel consumption is high, a kind of composite air supply method that a kind of combustion system of compressed ignition gaseous propellant engine is provided and has been used for this combustion system.It is simple in structure, need not to be provided with jet valve between major and minor firing chamber; Adopt the ignition by compression mode, increased substantially compression ratio, and realized lean combustion, thereby improved the thermal efficiency, reduced specific fuel consumption, the present invention is applicable to single alternative fuel motor.
In order to solve the problems of the technologies described above, purpose of the present invention can realize by following technological scheme:
Combustion system of compressed ignition gaseous propellant engine of the present invention comprises cylinder head, working piston, suction tude and the main combustion chamber between working piston top and cylinder head; Described cylinder head is provided with the separated type subsidiary combustion chamber; Described subsidiary combustion chamber bottom is provided with the passage that links to each other with main combustion chamber, and sidepiece is provided with glow plug, and top is provided with the spraying high-pressure gas valve of ECU (Electrical Control Unit) control; Described suction tude is provided with the low-pressure gas injection valve of ECU (Electrical Control Unit) control.
Composite air supply method of the present invention is summarized as follows:
The low-pressure gas injection valve is gas jet fuel in the engine charge stroke, forms thin mixed air with air mixing; In the engine compresses stroke, working piston is during near top dead center, and the spraying high-pressure gas valve is gas jet fuel in subsidiary combustion chamber, forms the dense mixed air that is easy to catch fire in subsidiary combustion chamber; Combustion-supporting down at glow plug, when closing on working piston near top dead center, the dense mixed air of compressing ignition subsidiary combustion chamber; The gas of subsidiary combustion chamber internal combustion sprays into main combustion chamber through the passage that main combustion chamber is connected with subsidiary combustion chamber, lights the thin mixed air in the main combustion chamber subsequently, finishes expansion workmanship process.
Compared with prior art, the present invention adopts separated type subsidiary combustion chamber and high-pressure injection valve, in subsidiary combustion chamber, form the dense mixed air that is easy to light, utilize the glow plug assistant heating to realize compressing ignition, the mixed gas of burning sprays into main combustion chamber by the passage that connects major and minor firing chamber, adopts simple passage between major and minor firing chamber, need not to be provided with complicated jet valve and pressure accumulating chamber, because design is more reasonable, its structure is more simple; Adopt the glow plug assistant heating to realize compressing ignition, increased substantially compression ratio, and realized lean combustion, thereby improved the thermal efficiency, reduced specific fuel consumption; Adopted the composite air supply method that is suitable for mutually with it simultaneously, thus in use freely convenient.
Description of drawings
Fig. 1 is a combustion system of compressed ignition gaseous propellant engine structural representation of the present invention;
Fig. 2 is the local figure of subsidiary combustion chamber of the present invention;
Fig. 3 is the local figure that inserts of the present invention;
Fig. 4 is a working piston guiding gutter partial enlarged drawing of the present invention.
Reference character:
1. ECU (Electrical Control Unit) 2. low-pressure gas injection valves 3. cylinder head 4. spraying high-pressure gas valves
5. glow plug 6. thermal-protective coatings 7. main combustion chambers 8. subsidiary combustion chamber
9. 10. working pistons, 11. passages, 12. suction tude of inserting
13. guiding gutter
Embodiment
Below in conjunction with accompanying drawing invention is described in detail:
In the drawings, the single alternative fuel engine chamber of ignition by compression comprises cylinder head 3, working piston 10, suction tude 12 and the main combustion chamber 7 between working piston top and cylinder head; The guiding gutter 13 that described piston 10 tops are provided with, guiding gutter 13 is positioned at piston head, and guiding is lighted the rarefied air in the main combustion chamber from the combustion gas that subsidiary combustion chamber ejects.Described cylinder head 3 is provided with separated type subsidiary combustion chamber 8, and subsidiary combustion chamber 8 is a spherical swirl chamber, and volume ratio is selected in 30%～40% best results, and compression ratio is 20～22; The subsidiary combustion chamber internal surface scribbles high temperature insulating layer 6, for example zirconium oxide, silicon nitride, and thickness is 0.2mm～0.6mm; Subsidiary combustion chamber 8 bottoms are provided with the passage 11 that links to each other with main combustion chamber 7, the size and the direction of passage have considerable influence to combustion effects, cross-sectional area is chosen in 100～150 square millimeters, its axis and horizontal sextant angle are selected in 40～60 degree best results, passage 11 can be arranged on and directly get through major and minor firing chamber in the cylinder head, also can be arranged on to insert on 9; Inserting 9 is constituent elements of subsidiary combustion chamber, and its hemisphere portion is grouped into the Lower Half of subsidiary combustion chamber, helps the air-flow that the direct high pressure snifting valve sprays into and enters subsidiary combustion chamber smooth-goingly, and rapid mixing forms dense mixed air; Groove is cut in 9 outsides of inserting one, and depth of groove is 0.5mm～2.5mm, put into subsidiary combustion chamber after, form air blanketing one, thereby reduce heat dissipation; Subsidiary combustion chamber 8 sidepieces are provided with glow plug 5, and glow plug 5 is ignition by compression ceramic electric heating plug; Subsidiary combustion chamber 8 tops are provided with the spraying high-pressure gas valve 4 of ECU (Electrical Control Unit) 1 control; Suction tude 12 is provided with the low-pressure gas injection valve 2 of ECU (Electrical Control Unit) 1 control.
Below composite air supply method of the present invention is further described:
At engine charge stroke mesolow gas spray valve 1 gas jet fuel, form thin mixed air with air mixing; In the engine compresses stroke, working piston 10 is during near top dead center, and spraying high-pressure gas valve 4 is gas jet fuel in subsidiary combustion chamber 8, forms the dense mixed air that is easy to catch fire in subsidiary combustion chamber 8; Combustion-supporting following at glow plug 5, the dense mixed air of compressing ignition subsidiary combustion chamber 8 when closing on working piston 10 top dead centers; The gas of subsidiary combustion chamber 8 internal combustion sprays into main combustion chamber through the passage 11 that main combustion chamber 7 is connected with subsidiary combustion chamber 8, lights the thin mixed air in the main combustion chamber subsequently, finishes expansion workmanship process.
High-pressure injection valve jet pressure is 6～12Mpa, injection timing before compression top center 40～20 ℃; Low-pressure fuel injection valve jet pressure is 0.4Mpa, and injection timing is 10～20 ℃ of air inlet atdc.
Gaseous fuel can use low cetane number gas instead fuel, and for example compressed natural gas, LNG Liquefied natural gas, algae gas adopt rock gas and algae gas as the internal-combustion engine alternative fuel, can reduce carbon monoxide and nitrogen oxide emission, thereby reduce pollution of atmosphere.
The present invention is applicable to that the cylinder diameter scope is from multi-purpose motors such as automobile-used, the generating of 95mm～200mm and oil recoveries.
More than be schematically to the description of the present invention and mode of execution thereof, do not have restricted.So, if those of ordinary skill in the art is enlightened by it, under the situation that does not break away from the invention aim, make other embodiment, all should belong to protection scope of the present invention.
Claims (10)
1. a combustion system of compressed ignition gaseous propellant engine comprises cylinder head, working piston, suction tude and the main combustion chamber between piston head and cylinder head, it is characterized in that described cylinder head is provided with the separated type subsidiary combustion chamber; Described subsidiary combustion chamber bottom is provided with the passage that links to each other with main combustion chamber, and sidepiece is provided with glow plug, and top is provided with the spraying high-pressure gas valve of ECU (Electrical Control Unit) control; Described suction tude is provided with the low-pressure gas injection valve of ECU (Electrical Control Unit) control.
2. combustion system of compressed ignition gaseous propellant engine according to claim 1 is characterized in that, the separated type subsidiary combustion chamber is a spherical swirl chamber.
3. combustion system of compressed ignition gaseous propellant engine according to claim 1 is characterized in that, described glow plug is an ignition by compression ceramic electric heating plug.
4. combustion system of compressed ignition gaseous propellant engine according to claim 1 is characterized in that, described working piston top is provided with guiding gutter.
5. combustion system of compressed ignition gaseous propellant engine according to claim 1 is characterized in that, described subsidiary combustion chamber internal surface scribbles the high temperature insulating layer, and thickness is 0.2mm～0.6mm.
6. combustion system of compressed ignition gaseous propellant engine according to claim 1 is characterized in that, the axis of described passage and horizontal sextant angle are 40～60 degree, 100～150 square millimeters of section area.
7. combustion system of compressed ignition gaseous propellant engine according to claim 1 is characterized in that described passage is arranged in the cylinder head.
8. combustion system of compressed ignition gaseous propellant engine according to claim 1 is characterized in that, described passage arranged outside has and has inserting of groove.
9. combustion system of compressed ignition gaseous propellant engine according to claim 1 is characterized in that, the volume ratio of described subsidiary combustion chamber is 30%～40%, and compression ratio is 20～22.
10. composite air supply method that adopts the described combustion system of compressed ignition gaseous propellant engine of claim 1, its job step is as follows:
(1) low-pressure gas injection valve gas jet fuel in the engine charge stroke forms thin mixed air with air mixing;
(2) in the engine compresses stroke, working piston is during near top dead center, and the spraying high-pressure gas valve is gas jet fuel in subsidiary combustion chamber, forms the dense mixed air that is easy to catch fire in subsidiary combustion chamber;
(3) combustion-supporting down at glow plug, the dense mixed air of compressing ignition subsidiary combustion chamber when closing on working piston near top dead center;
(4) gas of subsidiary combustion chamber internal combustion sprays into main combustion chamber through the passage that main combustion chamber is connected with subsidiary combustion chamber, lights the thin mixed air in the main combustion chamber subsequently, finishes expansion workmanship process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100727258A CN100410508C (en) | 2004-11-16 | 2004-11-16 | Combustion system of compressed ignition gaseous propellant engine and composite air supply method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100727258A CN100410508C (en) | 2004-11-16 | 2004-11-16 | Combustion system of compressed ignition gaseous propellant engine and composite air supply method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1605727A true CN1605727A (en) | 2005-04-13 |
| CN100410508C CN100410508C (en) | 2008-08-13 |
Family
ID=34765230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100727258A Expired - Fee Related CN100410508C (en) | 2004-11-16 | 2004-11-16 | Combustion system of compressed ignition gaseous propellant engine and composite air supply method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100410508C (en) |
Cited By (9)
| 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 |
| CN102425484A (en) * | 2011-11-04 | 2012-04-25 | 天津理工大学 | Method for improving natural gas engine compression ignition performance by adopting injection valve |
| CN102425483A (en) * | 2011-11-04 | 2012-04-25 | 天津理工大学 | Method for improving natural gas engine compression ignition performance by adopting oxidizer |
| CN1952359B (en) * | 2005-10-19 | 2014-05-14 | 曼柴油机欧洲股份公司 | Gas engine and ignition device for gas engine |
| CN105508073A (en) * | 2014-10-08 | 2016-04-20 | 福特环球技术公司 | Cylinder head for auto-ignition engine with direct injection |
| CN105569905A (en) * | 2016-03-07 | 2016-05-11 | 吉林大学 | Engine circulating ignition energy saving device, engine and circulating ignition method of engine |
| CN108730015A (en) * | 2018-05-22 | 2018-11-02 | 上海交通大学 | A kind of engine with subsidiary combustion chamber |
| CN113062795A (en) * | 2020-01-02 | 2021-07-02 | 广州汽车集团股份有限公司 | Pre-combustion chamber fuel supply system and engine |
| WO2022052238A1 (en) * | 2020-09-08 | 2022-03-17 | 天津大学 | Flame multistage acceleration device and method for gaseous propellant engine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3543736A (en) * | 1967-11-18 | 1970-12-01 | Toyoda Chuo Kenkyusho Kk | Internal combustion engine with subcombustion chamber |
| US3933134A (en) * | 1973-10-11 | 1976-01-20 | Honda Giken Kogyo Kabushiki Kaisha | Method and apparatus using proportional residual gas storage to reduce NOx emissions from internal combustion engines |
| US4616611A (en) * | 1984-10-16 | 1986-10-14 | Ngk Insulators, Ltd. | Precombustion chamber construction of internal combustion engine |
| JP2718071B2 (en) * | 1988-07-21 | 1998-02-25 | いすゞ自動車株式会社 | Sub-chamber insulated engine |
| CN1059254C (en) * | 1995-03-10 | 2000-12-06 | 大连海事大学 | Combustion system of internal combustion engine with two combustion chambers |
| CN2234506Y (en) * | 1995-05-24 | 1996-09-04 | 甘肃农大机电工程研究所 | Highland diesel engine |
| TW374826B (en) * | 1997-05-23 | 1999-11-21 | Honda Motor Co Ltd | Fuel injection internal combustion engine with sub-combustion chamber |
| CN2460879Y (en) * | 2000-07-03 | 2001-11-21 | 严信本 | flat bell-jar type vortex combustion chamber |
| CN2464944Y (en) * | 2001-02-27 | 2001-12-12 | 山东巨菱股份有限公司 | Vortex diesel engine |
| 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 |
-
2004
- 2004-11-16 CN CNB2004100727258A patent/CN100410508C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952359B (en) * | 2005-10-19 | 2014-05-14 | 曼柴油机欧洲股份公司 | Gas engine and ignition device for gas engine |
| CN101858245A (en) * | 2010-04-28 | 2010-10-13 | 大连理工大学 | Combustion system of large gas fuel engine |
| CN102425484A (en) * | 2011-11-04 | 2012-04-25 | 天津理工大学 | Method for improving natural gas engine compression ignition performance by adopting injection valve |
| CN102425483A (en) * | 2011-11-04 | 2012-04-25 | 天津理工大学 | Method for improving natural gas engine compression ignition performance by adopting oxidizer |
| CN105508073A (en) * | 2014-10-08 | 2016-04-20 | 福特环球技术公司 | Cylinder head for auto-ignition engine with direct injection |
| CN105569905A (en) * | 2016-03-07 | 2016-05-11 | 吉林大学 | Engine circulating ignition energy saving device, engine and circulating ignition method of engine |
| CN108730015A (en) * | 2018-05-22 | 2018-11-02 | 上海交通大学 | A kind of engine with subsidiary combustion chamber |
| CN108730015B (en) * | 2018-05-22 | 2020-03-06 | 上海交通大学 | Engine with auxiliary combustion chamber |
| CN113062795A (en) * | 2020-01-02 | 2021-07-02 | 广州汽车集团股份有限公司 | Pre-combustion chamber fuel supply system and engine |
| WO2022052238A1 (en) * | 2020-09-08 | 2022-03-17 | 天津大学 | Flame multistage acceleration device and method for gaseous propellant engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100410508C (en) | 2008-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5222993A (en) | Ignition system for water-cooled gas engines | |
| CN101427019B (en) | Low emission high performance engines, multiple cylinder engines and operating methods | |
| US5060610A (en) | Combustion process for internal combustion engines using gaseous fuel | |
| US9200560B2 (en) | Gaseous common rail fuel system and high compression ratio engine using same | |
| US6619254B2 (en) | Method for operating an internal combustion engine operated with a self-ignitable fuel | |
| CN102322332B (en) | Combustion chamber structure of CNG (Compressed Natural Gas) engine and fuel injection method thereof | |
| US10047688B2 (en) | Ignition system for internal combustion engines | |
| US10273891B2 (en) | Gaseous fuel internal combustion engine and operating method therefor | |
| US5203298A (en) | Pre-combustion chamber for internal combustion engine | |
| CN1605727A (en) | Combustion system of compressed ignition gaseous propellant engine and composite air supply method thereof | |
| CN1508409A (en) | Gas-driven IC engine rotating method | |
| CN102953800A (en) | Ignition method of pre-combustion chamber of diesel-dual-fuel engine | |
| CN1035895C (en) | An internal combustion engine | |
| WO1991019084A1 (en) | Split cycle internal combustion engine | |
| CN202954878U (en) | Diesel-double fuel engine prechamber ignition device | |
| US11852096B2 (en) | Method for operating an internal combustion engine | |
| JP3235302B2 (en) | Subchamber gas engine | |
| JP3225780U (en) | Low-speed large engine | |
| CN1132998C (en) | Burner for combustion system of hydrogen-type IC engine | |
| CN115341993A (en) | Internal combustion engine | |
| CN101725435B (en) | Method for forming layered thin combustion liquid LPG jet engine mixed gas | |
| JP2871317B2 (en) | Fuel supply system for gas engine | |
| EP3037646B1 (en) | Method for operating internal combustion engines | |
| JPH06229318A (en) | High-compression ratio sub chamber-type gas engine | |
| CN101675236B (en) | Method for alternating cylinder head and head-alternated cylinder head |
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: 20080813 Termination date: 20101116 |