CN216142837U - Air intake manifold assembly - Google Patents
Air intake manifold assembly Download PDFInfo
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- CN216142837U CN216142837U CN202120168826.4U CN202120168826U CN216142837U CN 216142837 U CN216142837 U CN 216142837U CN 202120168826 U CN202120168826 U CN 202120168826U CN 216142837 U CN216142837 U CN 216142837U
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- flange
- intake manifold
- manifold assembly
- intake
- pressure stabilizing
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Abstract
The utility model relates to an intake manifold assembly, and belongs to the technical field of design and manufacture of automobile engines. The intake manifold assembly comprises a throttle valve intake flange, an EGR (exhaust gas recirculation) port, a plurality of cylinder manifolds, a pressure stabilizing cavity and an intake manifold flange; the EGR port is in threaded connection with the side wall of the throttle air inlet flange, the throttle air inlet flange is communicated with the inside of the pressure stabilizing cavity, the inside of the pressure stabilizing cavity is communicated with the junction of the cylinder manifolds, and the end parts of the cylinder manifolds are connected with the inlet manifold flange. In the intake manifold assembly, the EGR port is positioned in front of the pressure stabilizing cavity and before entering the cylinder manifold, EGR intake air and fresh air can be fully mixed in the pressure stabilizing cavity, and the uniformity of EGR intake air can be improved, so that the combustion of each cylinder combustion chamber is ensured to be more uniform, and the NVH performance of an engine is improved.
Description
Technical Field
The utility model relates to the technical field of design and manufacture of automobile engines, in particular to an intake manifold assembly.
Background
Fig. 1 shows an intake manifold assembly in the prior art, which includes a plurality of cylinder manifolds 4, a surge chamber 7, a throttle intake flange 1, an intake temperature and pressure sensor mounting flange 3, a bracket mounting flange 5, a canister nozzle 6 and an intake manifold flange 8, wherein an EGR port 2 is arranged on the side wall of the surge chamber 7, close to two adjacent cylinder manifolds 4; the intake manifold assembly described above suffers from the following disadvantages:
(1) the gas flowing in from the EGR pipe is more easily taken away by the air intake of the adjacent cylinder manifold 4, so that the EGR rate consistency of each cylinder is poor;
(2) the EGR port is arranged on the side surface of the intake manifold, a long EGR pipeline needs to be arranged, and the EGR response is slow.
SUMMERY OF THE UTILITY MODEL
To solve the above technical problems in the prior art, an object of the present invention is to provide an intake manifold assembly.
The intake manifold assembly comprises a throttle valve intake flange, an EGR (exhaust gas recirculation) port, a plurality of cylinder manifolds, a pressure stabilizing cavity and an intake manifold flange; the method is characterized in that: the EGR port is in threaded connection with the side wall of the throttle air inlet flange, the throttle air inlet flange is communicated with the inside of the pressure stabilizing cavity, the inside of the pressure stabilizing cavity is communicated with the junction of the cylinder manifolds, and the end parts of the cylinder manifolds are connected with the inlet manifold flange.
The cylinder manifold assembly further comprises a support mounting flange, and the support mounting flange is arranged at the bottom of the cylinder manifolds.
Wherein, the number of cylinder manifold is 4.
Wherein, still include the temperature and pressure sensor mounting flange of admitting air, the temperature and pressure sensor mounting flange of admitting air sets up on the lateral wall of throttle valve air intake flange.
The device also comprises a carbon tank filler neck, and the carbon tank filler neck is arranged on the side wall of the pressure stabilizing cavity.
And the pressure stabilizing cavity and the plurality of cylinder manifolds are fixed through a fixing bracket.
Compared with the prior art, the intake manifold assembly has the following beneficial effects:
(1) the position of the EGR port is optimized, the EGR pipeline arrangement is facilitated, and the structure is more compact;
(2) the EGR port is positioned in front of the pressure stabilizing cavity and before entering the 4 manifolds, EGR inlet air and fresh air can be fully mixed in the pressure stabilizing cavity, and the EGR inlet air uniformity can be improved;
(3) the flow rate of fresh air entering from the throttle valve is high, and the air entering from the EGR port enters the pressure stabilizing cavity along with the fresh air, so that the air inflow of the EGR can be improved.
Drawings
Fig. 1 is a schematic structural view of an intake manifold assembly in the related art.
Fig. 2 is a schematic structural view of an intake manifold assembly of embodiment 1.
Detailed Description
The intake manifold assembly of the present invention will be further described with reference to specific embodiments thereof to assist those skilled in the art in providing a more complete, accurate and thorough understanding of the technical solutions of the present invention.
Example 1
The intake manifold assembly of this embodiment cancels the EGR mouth that is located the pressure stabilizing cavity side, and the EGR mouth is arranged at the side of throttle valve air intake flange, and the position of arranging is close to the throttle valve, is located before the pressure stabilizing cavity. The EGR tube is sealed with the intake manifold by a rubber gasket. Specifically, as shown in fig. 2, the intake manifold assembly includes a throttle intake flange 10, an EGR port 20, an intake temperature and pressure sensor mounting flange 30, a plurality of cylinder manifolds 40, a bracket mounting flange 50, a canister nozzle 60, a surge chamber 70, and an intake manifold flange 80. The EGR port 20 is screwed on the side wall of the throttle intake flange 10, the throttle intake flange 10 communicates with the inside of the surge chamber 70, the inside of the surge chamber 70 communicates with the junction of the cylinder manifolds 40, and the ends of the cylinder manifolds 40 are connected to the intake manifold flange 80. The bracket mounting flange 50 is disposed at the bottom of the plurality of cylinder manifolds 40. The intake temperature and pressure sensor mounting flange 30 is arranged on the side wall of the throttle valve intake flange 10. The canister filler neck 60 is disposed on a side wall of the plenum 70. The plenum 70 and the plurality of cylinder manifolds 40 are also secured by a fixed bracket.
In the structure of the embodiment, the EGR gas utilizes the intake inertia of the fresh air taken in from the throttle valve, and the EGR intake air amount can be increased; the EGR port is positioned close to the upper position of the intake manifold part, so that the arrangement of an EGR pipeline is facilitated, and the structure is more compact; the EGR port is located in front of the pressure stabilizing cavity and before entering the 4 manifolds, EGR air intake and fresh air can be fully mixed in the pressure stabilizing cavity, the EGR air intake uniformity can be improved, combustion of each cylinder combustion chamber is guaranteed to be more uniform, and the NVH performance of the engine is improved.
It is obvious to those skilled in the art that the specific embodiments are only exemplary descriptions of the present invention, and it is obvious that the specific implementation of the present invention is not limited by the above-mentioned manner, and various insubstantial modifications made by the method concept and technical scheme of the present invention are within the protection scope of the present invention.
Claims (6)
1. An intake manifold assembly comprises a throttle valve intake flange, an EGR port, a plurality of cylinder manifolds, a pressure stabilizing cavity and an intake manifold flange; the method is characterized in that: the EGR port is in threaded connection with the side wall of the throttle air inlet flange, the throttle air inlet flange is communicated with the inside of the pressure stabilizing cavity, the inside of the pressure stabilizing cavity is communicated with the junction of the cylinder manifolds, and the end parts of the cylinder manifolds are connected with the inlet manifold flange.
2. The intake manifold assembly of claim 1, wherein: the cylinder manifold assembly further comprises a support mounting flange arranged at the bottom of the plurality of cylinder manifolds.
3. The intake manifold assembly of claim 1, wherein: the number of cylinder manifolds is 4.
4. The intake manifold assembly of claim 1, wherein: still include the temperature and pressure sensor mounting flange of admitting air, the temperature and pressure sensor mounting flange of admitting air sets up on the lateral wall of throttle valve air intake flange.
5. The intake manifold assembly of claim 1, wherein: still include carbon tank filler neck, carbon tank filler neck sets up on the lateral wall of pressure stabilizing cavity.
6. The intake manifold assembly of claim 1, wherein: the pressure stabilizing cavity and the plurality of cylinder manifolds are fixed through a fixing bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120168826.4U CN216142837U (en) | 2021-01-21 | 2021-01-21 | Air intake manifold assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120168826.4U CN216142837U (en) | 2021-01-21 | 2021-01-21 | Air intake manifold assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216142837U true CN216142837U (en) | 2022-03-29 |
Family
ID=80800471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120168826.4U Active CN216142837U (en) | 2021-01-21 | 2021-01-21 | Air intake manifold assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216142837U (en) |
-
2021
- 2021-01-21 CN CN202120168826.4U patent/CN216142837U/en active Active
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