CN212774543U - Air inlet pipe integrated with EGR valve seat - Google Patents
Air inlet pipe integrated with EGR valve seat Download PDFInfo
- Publication number
- CN212774543U CN212774543U CN202020260913.8U CN202020260913U CN212774543U CN 212774543 U CN212774543 U CN 212774543U CN 202020260913 U CN202020260913 U CN 202020260913U CN 212774543 U CN212774543 U CN 212774543U
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- egr valve
- valve seat
- waste gas
- intake pipe
- exhaust gas
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Abstract
The utility model discloses an intake pipe of integrated EGR valve seat, including the intake pipe that sets up in the cylinder head lateral wall, be provided with the air cavity in the intake pipe, the shaping has the EGR valve seat in the intake pipe, EGR valve seat up end is provided with EGR valve seat installation interface; the front side wall of the EGR valve seat is provided with an exhaust gas inlet, the rear side wall of the EGR valve seat is provided with an exhaust gas outlet, the EGR valve seat is connected with the EGR valve through an EGR valve seat mounting interface, and the exhaust gas inlet is connected with the cylinder cover; and a waste gas cavity is arranged in the EGR valve seat, and the waste gas inlet, the waste gas outlet and the EGR valve seat mounting interface are respectively communicated with the waste gas cavity. The utility model discloses aim at solving current EGR valve mechanism and need design alone, need great arrangement installation space, the disk seat needs the assembly fixed simultaneously, and part quantity is many, and the easy scheduling problem that leaks gas in union coupling position.
Description
Technical Field
The utility model relates to an engine and EGR technical field especially relate to an intake pipe of integrated EGR disk seat.
Background
To meet current engine emission regulations, EGR (exhaust gas recirculation) systems are commonly deployed, and EGR controls exhaust gas flow and is an indispensable component. The arrangement and response performance of the EGR valve have important influence on the system, so that the improvement of the EGR valve is more urgent along with the strictness of emission regulations.
In the prior art, an EGR valve usually needs to be provided with an independent valve seat, the valve seat is connected through a connecting pipe, and the valve seat needs to be supported by an independent bracket; a large arrangement space is required; the valve seat needs to be assembled and fixed, and the number of parts is large; one more connection and one more hidden danger are provided, and the air leakage is easy to occur at the pipe connection part.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides an intake pipe of integrated EGR disk seat aims at solving the EGR valvetrain of current intake pipe and needs the independent design, needs great arrangement installation space, and the disk seat needs the assembly to be fixed simultaneously, and part is in large quantity, and the easy gas leakage scheduling problem in union coupling position.
The utility model discloses take following technical scheme to realize above-mentioned purpose:
an air inlet pipe integrated with an EGR valve seat comprises an air inlet pipe arranged on the side wall of a cylinder cover, wherein an air cavity is arranged in the air inlet pipe, the EGR valve seat is formed on the air inlet pipe, and an EGR valve seat mounting interface is arranged on the upper end face of the EGR valve seat; the front side wall of the EGR valve seat is provided with an exhaust gas inlet, the rear side wall of the EGR valve seat is provided with an exhaust gas outlet, the EGR valve seat is connected with the EGR valve through an EGR valve seat mounting interface, and the exhaust gas inlet is connected with the cylinder cover;
and a waste gas cavity is arranged in the EGR valve seat, and the waste gas inlet, the waste gas outlet and the EGR valve seat mounting interface are respectively communicated with the waste gas cavity.
The further technical scheme is that the EGR valve seat is connected with the EGR valve in a bolt connection mode.
The utility model has the advantages that:
1. the utility model provides an air inlet pipe of an integrated EGR valve seat, which is integrally cast and formed, and parts such as a connecting pipe and the like are reduced, so that the whole arrangement space is more compact;
2. the utility model provides an air inlet pipe of an integrated EGR valve seat, which reduces the traditional waste gas inlet connecting pipe and does not need an EGR valve seat supporting bracket and corresponding assembly; the number of the connecting ports is reduced, fault risk points are reduced, and reliability is improved;
3. the utility model provides a pair of intake pipe of integrated EGR disk seat, part quantity reduces by a wide margin, reduces assembly process, reduces cost in business.
Drawings
FIG. 1 is a diagram: a structural schematic diagram of integrated EGR disk seat.
FIG. 2 is a diagram of: an enlarged schematic diagram of EGR disk seat rear end of integrated EGR disk seat.
FIG. 3 is a diagram of: an enlarged schematic diagram of EGR disk seat front end of integrated EGR disk seat.
In the figure: 1-an EGR valve seat; 2-a cylinder head; 3, an air inlet pipe; 4-an exhaust gas outlet; 5-an EGR valve; 6-EGR valve seat mounting interface; 7-waste gas inlet.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings 1 to 3 and the detailed description.
As shown in fig. 1-3, for an embodiment of the present invention, an intake pipe integrated with an EGR valve seat is provided, which includes an intake pipe 3 disposed on a side wall of a cylinder head 2, an air chamber is disposed in the intake pipe 3, the air chamber mainly circulates air to allow the air to flow into an engine, the intake pipe 1 is integrally formed with the EGR valve seat 1, an EGR valve seat mounting interface 6 is disposed on an upper end surface of the EGR valve seat 1, and an EGR valve 5 is mounted on the EGR valve seat mounting interface 6; an exhaust gas inlet 7 is formed in the front side wall of the EGR valve seat 1, an exhaust gas outlet 4 is formed in the rear side wall of the EGR valve seat 1, and the exhaust gas inlet 7 is connected with the cylinder cover 2; be provided with the waste gas cavity in the EGR disk seat 1, waste gas entry 7, waste gas export 4, EGR disk seat installation interface 6 are linked together with the waste gas cavity respectively, and the waste gas of engine can have following mode circulation: on the one hand, the waste gas is guided to the waste gas cavity through the waste gas inlet 7 at the end of the cylinder cover 2 and then is discharged through the waste gas outlet 4, on the other hand, the waste gas passes through the waste gas cavity, and then the engine opens the EGR valve 5 according to different working conditions to lead the waste gas into the engine cylinder.
The EGR valve 5 is connected to the EGR valve seat 1 at an EGR valve seat mounting interface 6, and the connection thereof is fastened by bolts. The utility model cancels the independent EGR valve seat and the supporting bracket, and the waste gas connecting pipe, reduces the number of parts, simplifies the assembly and improves the assembly efficiency; the arrangement is compact, the pain point of arrangement space tension is solved, the cost is reduced, and the reliability is improved.
Although the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (2)
1. The air inlet pipe integrated with the EGR valve seat is characterized by comprising an air inlet pipe (3) arranged on the side wall of a cylinder cover (2), wherein an air cavity is arranged in the air inlet pipe (3), the EGR valve seat (1) is formed on the air inlet pipe (3), and an EGR valve seat mounting interface (6) is arranged on the upper end face of the EGR valve seat (1); an exhaust gas inlet (7) is formed in the front side wall of the EGR valve seat (1), an exhaust gas outlet (4) is formed in the rear side wall of the EGR valve seat (1), the EGR valve seat (1) is connected with an EGR valve (5) through an EGR valve seat mounting interface (6), and the exhaust gas inlet (7) is connected with the cylinder cover (2);
and a waste gas cavity is arranged in the EGR valve seat (1), and the waste gas inlet (7), the waste gas outlet (4) and the EGR valve seat mounting interface (6) are respectively communicated with the waste gas cavity.
2. The intake pipe integrated with the EGR valve seat is characterized in that the EGR valve seat (1) is connected with the EGR valve (5) through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020260913.8U CN212774543U (en) | 2020-03-05 | 2020-03-05 | Air inlet pipe integrated with EGR valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020260913.8U CN212774543U (en) | 2020-03-05 | 2020-03-05 | Air inlet pipe integrated with EGR valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212774543U true CN212774543U (en) | 2021-03-23 |
Family
ID=75024997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020260913.8U Active CN212774543U (en) | 2020-03-05 | 2020-03-05 | Air inlet pipe integrated with EGR valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212774543U (en) |
-
2020
- 2020-03-05 CN CN202020260913.8U patent/CN212774543U/en active Active
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