CN203009062U - Cylinder cover integrated with EGR (exhaust gas recirculation) channel - Google Patents
Cylinder cover integrated with EGR (exhaust gas recirculation) channel Download PDFInfo
- Publication number
- CN203009062U CN203009062U CN2012207238498U CN201220723849U CN203009062U CN 203009062 U CN203009062 U CN 203009062U CN 2012207238498 U CN2012207238498 U CN 2012207238498U CN 201220723849 U CN201220723849 U CN 201220723849U CN 203009062 U CN203009062 U CN 203009062U
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- CN
- China
- Prior art keywords
- egr
- exhaust
- cylinder
- egr valve
- channel
- 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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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model relates to a cylinder cover integrated with an EGR (exhaust gas recirculation) channel. The cylinder cover comprises a cover body. A cover water jacket is arranged on the cover body. The exhaust side of the cover body is provided with an exhaust cavity communicated with an internal combustion engine exhaust passage. One end of an EGR channel is communicated with the exhaust cavity. The other end of the EGR channel extends into the rear end of the exhaust side along the rear end of the cover body. An EGR valve seat is disposed at the rear end of the exhaust side. An EGR valve is disposed on the EGR valve seat. The EGR channel is communicated with a connecting pipe of an intake manifold through the EGR valve. The EGR channel penetrates the side of the cover water jacket from the inside of the cover body. Part of the tubular wall of the EGR channel is co-walled with the cover water jacket. The cylinder cover is simple in structure and low in manufacturing cost.
Description
Technical field
The utility model relates to the component on a kind of motor, is specifically related to a kind of cylinder head of integrated EGR passage.
Background technique
EGR refers to that internal-combustion engine isolates the part of Exhaust Gas and import the air inlet side and make its technology of burning once again (non-supercharged engine utilizes in the intake manifold chamber negative pressure with waste gas " suction " air inlet side) after burning.Main purpose can improve the rate of fuel consumption rate for the nitrogen oxide (NOx) that reduces in Exhaust Gas when sharing sub load.Be CN1348058A as the patent documentation publication number, the patent of engine cylinder cap by name just is located at the EGR passage on the cylinder head of motor, because the gas temperature in the EGR passage is higher, therefore, this cylinder head is provided with special water(-cooling) jacket to the cooling of the gas in the EGR passage, can improve the amount of cooling water of recycle gas, but this air cylinder head structure is complicated, difficulty of processing is larger, causes the corresponding increase of cost.
The model utility content
The purpose of this utility model is to provide a kind of cylinder head of integrated EGR passage, and this air cylinder head structure is simple, low cost of manufacture.
The cylinder head of integrated EGR passage described in the utility model comprises the cylinder cap body, on the cylinder cap body, cylinder cover water jacket is arranged; The exhaust side of described cylinder cap body is provided with the exhaust cavity that communicates with the I. C. engine exhaust road, one end of EGR passage is communicated with exhaust cavity, the other end of this EGR passage extends to air inlet rear flank end along the rear end of cylinder cap body, this air inlet rear flank end is provided with the EGR valve seat, described EGR valve seat is provided with the EGR valve, and described EGR passage is communicated with the connecting tube of intake manifold by the EGR valve; Described EGR passage passes from the cylinder cover water jacket side in the cylinder cap body, and its part tube wall and cylinder cover water jacket be wall altogether.
The utlity model has following advantage:
1) utilize cylinder cover water jacket to carry out cooling to the gas in the EGR passage, due to circulating of cooling water in cylinder cover water jacket, high-temp waste gas can access cooling fully, has reduced the component that must use because of gas high temperature, extends the working life of EGR valve and connecting tube.
2) integrated EGR passage on cylinder head takes full advantage of the space layout design of cylinder head, has saved cost of material when making its compact structure
3) this air cylinder head structure is simple, and technique succinctly is easy to realize, realizes the optimal design of low cost and high reliability.
Description of drawings
Fig. 1 is axonometric drawing of the present utility model.
Fig. 2 is the cylinder cap exhaust side schematic diagram of Fig. 1;
Fig. 3 is the cylinder cap air inlet rear flank end schematic diagram of Fig. 1;
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Referring to the cylinder head of integrated EGR passage illustrated in figures 1 and 2, it comprises cylinder cap body 4, and cylinder cover water jacket 6 is arranged on cylinder cap body 4; The exhaust side of described cylinder cap body 4 is provided with the exhaust cavity 5 that communicates with the I. C. engine exhaust road, one end of EGR passage 1 is communicated with exhaust cavity 5, the other end of this EGR passage 1 extends to air inlet rear flank end along the rear end of cylinder cap body 4, this air inlet rear flank end is provided with EGR valve seat 3, described EGR valve seat 3 is provided with the EGR valve, and described EGR passage 1 is communicated with the connecting tube of intake manifold by the EGR valve; Described EGR passage 1 passes from cylinder cover water jacket 6 sides in cylinder cap body 4, and its part tube wall and cylinder cover water jacket be wall altogether.
Working principle of the present utility model:
Utilize the peak value of pulse pressure of exhaust back pressure greater than the characteristic of air-distributor pressure, control the EGR valve; When motor surpasses certain rotating speed, loads and reaches certain temperature, the EGR valve is opened, the waste gas of motor is discharged shunting from air outlet flue, part waste gas enters the EGR passage through exhaust cavity, to air inlet rear flank end, the opening angle of EGR valve can be controlled the EGR amount, and waste gas enters intake manifold by the EGR valve, enters at last the firing chamber.Because waste gas is cooling through the outer wall of cylinder cover water jacket, so engine charge pressure is far smaller than exhaust pressure, when the EGR valve was opened, waste gas circulated by above description under the effect of pressure reduction.
Claims (1)
1. the cylinder head of an integrated EGR passage, comprise cylinder cap body (4), and cylinder cover water jacket (6) is arranged on cylinder cap body (4); It is characterized in that: the exhaust side of described cylinder cap body (4) is provided with the exhaust cavity (5) that communicates with the I. C. engine exhaust road, one end of EGR passage (1) is communicated with exhaust cavity (5), the other end of this EGR passage (1) extends to air inlet rear flank end along the rear end of cylinder cap body (4), this air inlet rear flank end is provided with EGR valve seat (3), described EGR valve seat (3) is provided with the EGR valve, and described EGR passage (1) is communicated with the connecting tube of intake manifold by the EGR valve; Described EGR passage (1) passes from cylinder cover water jacket (6) side in cylinder cap body (4), and its part tube wall and cylinder cover water jacket be wall altogether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207238498U CN203009062U (en) | 2012-12-25 | 2012-12-25 | Cylinder cover integrated with EGR (exhaust gas recirculation) channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207238498U CN203009062U (en) | 2012-12-25 | 2012-12-25 | Cylinder cover integrated with EGR (exhaust gas recirculation) channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009062U true CN203009062U (en) | 2013-06-19 |
Family
ID=48600667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207238498U Expired - Fee Related CN203009062U (en) | 2012-12-25 | 2012-12-25 | Cylinder cover integrated with EGR (exhaust gas recirculation) channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009062U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218149A (en) * | 2017-05-24 | 2017-09-29 | 安徽江淮汽车集团股份有限公司 | A kind of cylinder cap assembly with EGR functions |
| CN107532862A (en) * | 2015-04-29 | 2018-01-02 | 福特汽车萨纳伊股份有限公司 | Cylinder block with cooler for recycled exhaust gas housing |
| CN108317018A (en) * | 2017-12-29 | 2018-07-24 | 浙江锋锐发动机有限公司 | Cylinder head cooling device and preparation method thereof and cylinder cover cooling system |
| CN108397313A (en) * | 2018-03-21 | 2018-08-14 | 重庆长安汽车股份有限公司 | A kind of natural aspiration gasoline engine egr system and engine |
-
2012
- 2012-12-25 CN CN2012207238498U patent/CN203009062U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107532862A (en) * | 2015-04-29 | 2018-01-02 | 福特汽车萨纳伊股份有限公司 | Cylinder block with cooler for recycled exhaust gas housing |
| CN107532862B (en) * | 2015-04-29 | 2019-10-11 | 福特汽车萨纳伊股份有限公司 | Cylinder block with cooler for recycled exhaust gas shell |
| CN107218149A (en) * | 2017-05-24 | 2017-09-29 | 安徽江淮汽车集团股份有限公司 | A kind of cylinder cap assembly with EGR functions |
| CN108317018A (en) * | 2017-12-29 | 2018-07-24 | 浙江锋锐发动机有限公司 | Cylinder head cooling device and preparation method thereof and cylinder cover cooling system |
| CN108397313A (en) * | 2018-03-21 | 2018-08-14 | 重庆长安汽车股份有限公司 | A kind of natural aspiration gasoline engine egr system and engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20191225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |