CN201568163U - Automobile engine EGR assembly air inlet structure - Google Patents
Automobile engine EGR assembly air inlet structure Download PDFInfo
- Publication number
- CN201568163U CN201568163U CN200920312804XU CN200920312804U CN201568163U CN 201568163 U CN201568163 U CN 201568163U CN 200920312804X U CN200920312804X U CN 200920312804XU CN 200920312804 U CN200920312804 U CN 200920312804U CN 201568163 U CN201568163 U CN 201568163U
- Authority
- CN
- China
- Prior art keywords
- egr assembly
- cylinder cap
- air inlet
- steam passage
- exhaust steam
- 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 - Fee Related
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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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- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model discloses an automobile engine EGR assembly air inlet structure which solves the problems in existing automobile engines that the integral structure compactness of an engine is worse and connecting pipelines can not be conveniently arranged due to arranging EGR assembles. The automobile engine EGR assembly air inlet structure adopts the technical scheme that one automobile engine EGR assembly air inlet structure is used to communicate an engine cylinder cover exhaust manifold and an EGR assembly, the cylinder cover is provided with a gas inlet side and a gas exhaust side, the exhaust manifold is located on the exhaust side, a water jacket is arranged in the cylinder cover, the automobile engine EGR assembly air inlet structure is characterized by comprising a waste gas passage arranged in the cylinder cover, a gas inlet of the waste gas passage is communicated with the exhaust manifold, and a gas outlet of the waste gas passage is communicated with the EGR assembly.
Description
Technical field
The utility model relates to a kind of motor car engine EGR assembly, relates in particular to the air intake structure of EGR assembly.
Background technique
The noxious emission of motor is a main source that causes pollution of atmosphere, along with the significance of environmental protection problem increases day by day, reduces the important directions that this target of Engine's Harmful Emission becomes motor development in the world today.Along with the consumption of world oil goods rises year by year, international oil price is high, and the Economy of diesel-oil vehicle is outstanding day by day, this make diesel engine in power train in vehicle application in occupation of more and more important position.Gas recirculation system (Exhaust Gas Recirculation) is called for short EGR, is that the sub-fraction of waste gas that diesel engine is produced is sent cylinder again back to.EGR gas is interior owing to have more inert gas, and temperature is relatively low, this will the retarded combustion process, thereby that is to say that velocity of combustion will slow down the pressure forming process that causes in the firing chamber and slow down, main cause that oxynitrides can reduce that Here it is.In addition, improve ER EGR Rate total exhaust gas flow (mass flow) is reduced, so total pollutant output quantity will reduce relatively in the toxic emission.
It is that connecting pipeline by being located at the cylinder cap outside is communicated with the cylinder cap discharge manifold that the waste gas of existing EGR assembly enters, but since around the motor complete machine various pipelines more, this connecting pipeline inconvenience is arranged, and is made that the whole structural compactness of motor is poor.
Summary of the invention
For overcoming above-mentioned defective, the utility model technical issues that need to address: a kind of motor car engine EGR assembly air intake structure is provided, and the structure that it helps simplifying the motor complete machine makes the compact overall structure of motor good.
For solving the problems of the technologies described above, the technical solution of the utility model: a kind of motor car engine EGR assembly air intake structure, be used to link up engine cylinder cover discharge manifold and EGR assembly, described cylinder cap has air inlet side and exhaust side, and discharge manifold is positioned at exhaust side, is provided with water jacket in the cylinder cap, it is characterized in that, comprise the exhaust steam passage of being located in the described cylinder cap, the suction port of exhaust steam passage communicates with discharge manifold, and the air outlet communicates with the EGR assembly.The duct that this exhaust steam passage processes in cylinder cap forms, by exhaust steam passage the part waste gas in the discharge manifold is incorporated in the EGR assembly, quantitatively in The combustion chamber, sends into waste gas by intake duct so that the EGR assembly is looked the situation of engine operation.
As preferably, described exhaust steam passage is positioned at the side of cylinder cap near described water jacket.Water jacket can help improving the effect of EGR assembly for providing certain cooling action by the waste gas in the exhaust steam passage.
As preferably, described exhaust steam passage extends along the length direction of water jacket.Like this, water jacket can further improve the effect of EGR assembly to cooling off to greatest extent by the waste gas in the exhaust steam passage.
As preferably, described EGR assembly is located at the air inlet side of cylinder cap, and exhaust steam passage runs through the inlet and outlet side of cylinder cap.EGR directly is located at the air inlet side of cylinder cap, and exhaust steam passage runs through cylinder cap, and exhaust steam passage is easier to processing, has improved the structural compactness of motor complete machine.
Therefore, the beneficial effects of the utility model:
Owing to being located at the connecting pipeline that the interior exhaust steam passage of cylinder cap replaces being located at the cylinder cap outside, make that the structural compactness of motor complete machine is good, be convenient to the attended operation of associated components.And waste gas is when the exhaust steam passage, and the cooling system in the cylinder cap can provide cooling action for waste gas, enters in the The combustion chamber by the EGR assembly through cooled waste gas, has improved the effect of EGR assembly.
Description of drawings
Accompanying drawing 1 is the sectional view that the utility model motor car engine EGR assembly air intake structure is positioned at cylinder cap.
Embodiment
See accompanying drawing, the utility model motor car engine EGR assembly air intake structure is located in the cylinder cap 2, and described cylinder cap 2 has air inlet side and exhaust side, and described ERG assembly 3 is located at the air inlet side of cylinder cap 2, is provided with discharge manifold 1 at the exhaust side of cylinder cap 2.Be provided with water jacket 5 in cylinder cap 2, engine fuel injector passes water jacket 5, and water jacket 5 can cool off the oil sprayer in the work.
Be provided with exhaust steam passage 4 in cylinder cap 2, exhaust steam passage 4 runs through the air inlet side and the exhaust side of cylinder cap 2, and wherein the suction port of exhaust steam passage 4 communicates with discharge manifold 1, and the air outlet of exhaust steam passage 4 communicates with EGR assembly 3.Exhaust steam passage 4 imports to the part waste gas in the discharge manifold 1 in the EGR assembly 3.
Exhaust steam passage 4 is positioned at the side of cylinder cap 2 near water jacket 5, and exhaust steam passage 4 extends along the length direction of water jacket 5, water jacket 5 can fully cool off the waste gas in the exhaust steam passage 4 of flowing through, enter in the The combustion chamber by EGR assembly 3 through abundant waste gas cooled, the effect of EGR assembly 3 is improved.
Claims (4)
1. motor car engine EGR assembly air intake structure, be used to link up engine cylinder cover discharge manifold and EGR assembly, described cylinder cap has air inlet side and exhaust side, discharge manifold is positioned at exhaust side, be provided with water jacket in the cylinder cap, it is characterized in that, comprise the exhaust steam passage of being located in the described cylinder cap (2) (4), the suction port of exhaust steam passage (4) communicates with discharge manifold (1), and the air outlet communicates with EGR assembly (3).
2. motor car engine EGR assembly air intake structure according to claim 1 is characterized in that, described exhaust steam passage (4) is positioned at the side of cylinder cap (2) near described water jacket (5).
3. motor car engine EGR assembly air intake structure according to claim 2 is characterized in that, described exhaust steam passage (4) extends along the length direction of water jacket (5).
4. according to claim 1,2 or 3 described motor car engine EGR assembly air intake structures, it is characterized in that described EGR assembly (3) is located at the air inlet side of cylinder cap (2), exhaust steam passage (4) runs through the inlet and outlet side of cylinder cap (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920312804XU CN201568163U (en) | 2009-10-20 | 2009-10-20 | Automobile engine EGR assembly air inlet structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920312804XU CN201568163U (en) | 2009-10-20 | 2009-10-20 | Automobile engine EGR assembly air inlet structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568163U true CN201568163U (en) | 2010-09-01 |
Family
ID=42660448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920312804XU Expired - Fee Related CN201568163U (en) | 2009-10-20 | 2009-10-20 | Automobile engine EGR assembly air inlet structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201568163U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850828A (en) * | 2012-11-29 | 2014-06-11 | 通用汽车环球科技运作有限责任公司 | Engine including exhaust gas recirculation injection system |
| CN105971759A (en) * | 2016-07-14 | 2016-09-28 | 阿尔特汽车技术股份有限公司 | Novel air cylinder cover integrating EGR channel |
-
2009
- 2009-10-20 CN CN200920312804XU patent/CN201568163U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850828A (en) * | 2012-11-29 | 2014-06-11 | 通用汽车环球科技运作有限责任公司 | Engine including exhaust gas recirculation injection system |
| CN105971759A (en) * | 2016-07-14 | 2016-09-28 | 阿尔特汽车技术股份有限公司 | Novel air cylinder cover integrating EGR channel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20100901 Termination date: 20131020 |