CN209115214U - Engine cylinder cover with gas recirculation system channel - Google Patents
Engine cylinder cover with gas recirculation system channel Download PDFInfo
- Publication number
- CN209115214U CN209115214U CN201821301790.7U CN201821301790U CN209115214U CN 209115214 U CN209115214 U CN 209115214U CN 201821301790 U CN201821301790 U CN 201821301790U CN 209115214 U CN209115214 U CN 209115214U
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- China
- Prior art keywords
- egr
- channel
- egr channel
- engine
- cylinder cap
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- 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.)
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- Exhaust-Gas Circulating Devices (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of engine cylinder covers with gas recirculation system channel, EGR channel is set to the side of cylinder cap ontology, the entrance of EGR channel is placed in one end of the exhaust side EGR channel of cylinder cap and is connected with the EGR channel outlet on exhaust pipe, and the other end of EGR channel is external to cooler for recycled exhaust gas.The utility model goes out EGR channel in cylinder cap interior design and is directly connected with exhaust pipe, the function of EGR air inlet pipe not only may be implemented, and it can reduce engine overall dimensions and save external engine space, and reduce amount of parts and reduce components arrangement difficulty, to also achieve the purpose for reducing manufacturing cost.
Description
Technical field
The utility model belongs to engine manufacturing technology field, and in particular to a kind of engine cylinder cover with EGR channel.
Background technique
With becoming better and approaching perfection day by day for countries in the world environmental regulation, wherein also higher and higher to engine emission requirements.To reduce
Nitrogen oxides (NOx) in exhaust, EGR Technology (EGR) have been widely applied in engine.EGR technology refer to by
A part that diesel engine or gasoline engine generate exhaust gas sends cylinder back to again, and EGR gas makes to burn due to meeting retarded combustion process
Speed slows down to be slowed down so as to cause the pressure initiation process in combustion chamber, to achieve the purpose that reduce NOx emission.Current big portion
The EGR line for dividing diesel engine is all the periphery that engine is arranged in, and EGR line one end is connected with the exhaust pipe of engine；The other end
It is connected with cooler for recycled exhaust gas, exhaust gas is drawn from the exhaust pipe of engine, cooler for recycled exhaust gas is flowed through and then enters back into cylinder.This
The defect of kind of setting structure is, component occupies that external engine space is more, is unfavorable for the assembly of complete machine.The utility model proposes
A kind of engine cylinder cover with EGR channel, goes out EGR channel in cylinder cap interior design and is directly connected with exhaust pipe, both may be implemented
Egr system function, and space can be saved, reduce manufacturing cost.
Summary of the invention
The purpose of this utility model is to propose a kind of engine cylinder cover with egr system channel, in cylinder cap interior design
EGR channel is directly connected with exhaust pipe out, while realizing EGR air inlet pipe function, can save space, reduce components cloth
Difficulty is set, reduces engine overall dimensions, reduces amount of parts, reduces manufacturing cost.
To realize that this purpose technical solution adopted in the utility model is: with starting for gas recirculation system channel
Machine cylinder cap, including cylinder cap and cooler for recycled exhaust gas.Its design structure is: EGR channel is set to the side of cylinder cap ontology, EGR channel
Entrance is placed in one end of the exhaust side EGR channel of cylinder cap and is connected with the EGR channel outlet on exhaust pipe, the other end of EGR channel
It is external to cooler for recycled exhaust gas.
Compared with the prior art: generally EGR conduit being provided separately on the outside of engine, accesses the part row of exhaust pipe
Then gas is connect with cooler for recycled exhaust gas, this portion gas after cooling is re-fed into engine air inlet tube.And the utility model will connect
Tracheae is set up directly in cylinder cap, then effectively saves external engine Space configuration volume, this is the assembly of diesel engine vehicle
Bring many benefits.
The beneficial effect of the characteristics of the utility model and generation is, cylinder cap interior design go out EGR channel directly with exhaust
Pipe is connected, and the function of EGR air inlet pipe not only may be implemented, but also can reduce engine overall dimensions and save external engine sky
Between, and reduce amount of parts and reduce components arrangement difficulty, to also achieve the purpose for reducing manufacturing cost.
Detailed description of the invention
Fig. 1 is the utility model engine cylinder cover structure schematic diagram.
Fig. 2 is Figure 1A-A the schematic diagram of the section structure.
Fig. 3 is the utility model overall appearance structural representation.
Specific embodiment
It is described further below by way of structure of the specific embodiment to the utility model.
Engine cylinder cover with gas recirculation system channel, structure are: EGR channel 1 is set to 2 ontology of cylinder cap
Side, the entrance 1-1 of EGR channel are placed in one end of the exhaust side EGR channel of cylinder cap and the EGR channel outlet 1-2 on exhaust pipe 3
It is connected, the other end of EGR channel is external to cooler for recycled exhaust gas.
The entrance cross-sectional area of cylinder cap EGR channel is 460mm2。
Engine cylinder cover with gas recirculation system channel is completed together in casting, only according to the utility model institute
Show structure carry out assembling can.The structure effectively reduces engine overall dimensions, is saving diesel engine exterior space
Meanwhile amount of parts is decreased, manufacturing cost is also reduced naturally.
Claims (2)
1. the engine cylinder cover in gas recirculation system channel, including cylinder cap and cooler for recycled exhaust gas are had, it is characterized in that: EGR channel
(1) be set to the side of cylinder cap (2) ontology, the entrance (1-1) of EGR channel be placed in one end of the exhaust side EGR channel of cylinder cap with
EGR channel outlet (1-2) on exhaust pipe (3) is connected, and the other end of EGR channel is external to cooler for recycled exhaust gas.
2. the engine cylinder cover described in accordance with the claim 1 with gas recirculation system channel, it is characterized in that: the EGR
The entrance cross-sectional area in channel is designed as 460mm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821301790.7U CN209115214U (en) | 2018-08-14 | 2018-08-14 | Engine cylinder cover with gas recirculation system channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821301790.7U CN209115214U (en) | 2018-08-14 | 2018-08-14 | Engine cylinder cover with gas recirculation system channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209115214U true CN209115214U (en) | 2019-07-16 |
Family
ID=67196953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821301790.7U Active CN209115214U (en) | 2018-08-14 | 2018-08-14 | Engine cylinder cover with gas recirculation system channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209115214U (en) |
-
2018
- 2018-08-14 CN CN201821301790.7U patent/CN209115214U/en active Active
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