CN205047286U - Structure of engine exhaust manifold - Google Patents
Structure of engine exhaust manifold Download PDFInfo
- Publication number
- CN205047286U CN205047286U CN201520703574.5U CN201520703574U CN205047286U CN 205047286 U CN205047286 U CN 205047286U CN 201520703574 U CN201520703574 U CN 201520703574U CN 205047286 U CN205047286 U CN 205047286U
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- China
- Prior art keywords
- exhaust manifold
- flange
- gas exhaust
- suction port
- gas
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- Expired - Fee Related
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- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model discloses a structure of engine exhaust manifold. It includes the air inlet flange, house steward exhaust manifold, gas outlet flange, strengthening rib, EGR diffluence pass. Exhaust manifold admits air and is equipped with four air inlets of intercommunication house steward exhaust manifold on the flange, and exhaust manifold gives vent to anger and is equipped with intercommunication house steward's exhaust manifold a gas outlet on the flange. Be equipped with the EGR diffluence pass at the air inlet side, EGR diffluence pass and engine admit air the air flue and are linked together, and the flange of giving vent to anger is 30 jiaos with the flange that admits air. Through the structure of the utility model, the utility model has the advantages of with compact structure, simple to operate, with low costs, intensity is high, gas flow is smooth.
Description
Technical field
The utility model relates to a kind of structure of enmgine exhaust.
Background technique
Present stage, what require automobile each side along with user improves constantly, and also has higher requirement to motor.Motor is as the heart of automobile, and each index of correlation that its performance is automobile provides the most directly to be supported.Enmgine exhaust is automobile exhaust system critical piece, and the high temperature gas flow produced during engine operation is discharged through gas exhaust manifold.In engine exhaust field, because it concerns motor overall performance, component layout, and the design of engine cabin, emission standard etc., so the designing requirement of each Automobile Enterprises to the gas exhaust manifold of motor is also more and more higher.For enmgine exhaust, the subject matter that most gas exhaust manifold exists is as follows: exhaust back pressure is large; Thermal stress concentration problem is difficult to resolve certainly, and gas exhaust manifold easily burns leakage; Exhaust manifold thermal shield noise is wayward, affects car load driving comfortability; Install more difficult with replacing, not easily meet arrangement requirement; Complex structure, casting cost is high.
EGR sub-fraction gas of combustion is introduced suction tude from outlet pipe mix the exhausted air quantity increased artificially fresh charge with fresh charge, thus reduce the combustion temperature of motor, reduces the formation of NOx.But traditional Design of Exhaust Manifold, the manifold towards EGR valve waste gas cylinder is all be not combined with cylinder cap, but adopts external pipeline to lead to EGR valve, and such structure is not compact, and assembling is complicated, directly affects gas discharging.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art, provides a kind of structure of enmgine exhaust.
A kind of structure of enmgine exhaust comprises suction port flange, exhaust headers, four gas exhaust manifold arms, air outlet flange, stiffening rib, EGR split-flow openings; Suction port flange is connected with exhaust headers respectively with air outlet flange, suction port flange and air outlet flange are distributed in exhaust headers both sides, exhaust headers is connected with suction port flange by four gas exhaust manifold arms, fix stiffening rib in the intersection of four gas exhaust manifold arms, the 4th gas exhaust manifold arm and EGR split-flow opening fix.
Described air outlet flange and suction port flange are 30 ° of angles.
Described suction port flange is rhombus, is provided with bolt hole, and flange of giving vent to anger is triangle, is provided with bolt hole.
Four described gas exhaust manifold arms are all in streamlined, air inlet horizontal pipe and vertical pipeline joint of giving vent to anger are Rouno Cormer Pregrinding Wheel transition, and the first gas exhaust manifold arm and the 4th gas exhaust manifold arm that are wherein positioned at both sides are longer than the second gas exhaust manifold arm and the 3rd gas exhaust manifold arm that are positioned at centre.
The utility model has following beneficial effect:
1, four gas exhaust manifold arms are all in streamlined, and air inlet horizontal pipe and vertical pipeline joint of giving vent to anger are the fluency that Rouno Cormer Pregrinding Wheel transition improves gas;
2, give vent to anger 30 ° of angles in flanged surface and inlet flange face are designed, and make structure more compact, processing cost is low makes air inlet more smooth to the pipeline of giving vent to anger simultaneously, is convenient to gas flow;
3, four gas exhaust manifold arm intersections arrange stiffening rib, and the thermal stress that can reduce gas exhaust manifold is concentrated, and reduces exhaust noise, significantly improves the intensity of gas exhaust manifold;
4, EGR split-flow opening and gas exhaust manifold are made of one, compact structure, and do not need external pipeline to reduce part, reduce cost, good reliability.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the structure of enmgine exhaust;
Fig. 2 is enmgine exhaust inlet flange and flange angle schematic diagram of giving vent to anger;
Fig. 3 is engine exhaust manifold road schematic internal view;
In figure, suction port flange 1, exhaust headers 2, first gas exhaust manifold arm 2-1, the second gas exhaust manifold arm 2-2, the 3rd gas exhaust manifold arm 2-3, the 4th gas exhaust manifold arm 2-4, air outlet flange 3, stiffening rib 4, EGR split-flow opening 5.
Embodiment
As shown in Figure 1, a kind of structure of enmgine exhaust comprises suction port flange 1, exhaust headers 2, four gas exhaust manifold arm 2-1,2-2,2-3,2-4, air outlet flange 3, stiffening rib 4, EGR split-flow opening 5; Suction port flange 1 is connected with exhaust headers 2 respectively with air outlet flange 3, suction port flange 1 and air outlet flange 3 are distributed in exhaust headers 2 both sides, exhaust headers 2 is connected with suction port flange 1 by four gas exhaust manifold arms, fix stiffening rib 4 in the intersection of four gas exhaust manifold arms, the 4th gas exhaust manifold arm 2-4 and EGR split-flow opening 5 fix.
As shown in Figure 2, described flange 4 of giving vent to anger is 30 ° of angles with inlet flange 3.
As shown in Figure 1, described suction port flange 1 is rhombus, is provided with bolt hole, and flange 4 of giving vent to anger, for triangle, is provided with bolt hole.This design can improve the stability of the installation of exhaust headers 2.
As shown in Figure 3, four described gas exhaust manifold arms are all in streamlined, air inlet horizontal pipe and vertical pipeline joint of giving vent to anger are Rouno Cormer Pregrinding Wheel transition, and the first gas exhaust manifold arm 2-1 and the 4th gas exhaust manifold arm 2-4 that are wherein positioned at both sides are longer than the second gas exhaust manifold arm 2-2 and the 3rd gas exhaust manifold arm 2-3 that are positioned at centre.
The air inlet flow process of exhaust headers 2 is that the waste gas of each cylinder enters four gas exhaust manifold arms 2-1,2-2,2-3,2-4, exhaust branch pipe 2-1 and 2-4 manifold collection, exhaust branch pipe 2-2 and 2-3 manifold collection, collect at exhaust headers 2 afterwards, the more unified air outlet from giving vent to anger flange 3 is discharged.But there is portion through four gas exhaust manifold arms 2-1,2-2,2-3,2-4; time; due to the effect of EGR split-flow opening 5; air-flow is separated at EGR split-flow opening 5 place; part gas enters exhaust headers 2; another part gas reenters intake manifold through EGR split-flow opening 5, thus reduces motor vehicle emission, improves environmental protection efficiency.
Claims (4)
1. a structure for enmgine exhaust, is characterized in that comprising suction port flange (1), exhaust headers (2), four gas exhaust manifold arms (2-1,2-2,2-3,2-4), air outlet flange (3), stiffening rib (4), EGR split-flow opening (5); Suction port flange (1) is connected with exhaust headers (2) respectively with air outlet flange (3), suction port flange (1) and air outlet flange (3) are distributed in exhaust headers (2) both sides, exhaust headers (2) is connected with suction port flange (1) by four gas exhaust manifold arms, fix stiffening rib (4) in the intersection of four gas exhaust manifold arms, the 4th gas exhaust manifold arm (2-4) and EGR split-flow opening (5) fix.
2. the structure of a kind of enmgine exhaust according to claim 1, is characterized in that described air outlet flange (3) and suction port flange (1) are in 30 ° of angles.
3. the structure of a kind of enmgine exhaust according to claim 1, it is characterized in that described suction port flange (1) is rhombus, be provided with bolt hole, flange of giving vent to anger (4) is triangle, is provided with bolt hole.
4. the structure of a kind of enmgine exhaust according to claim 1, it is characterized in that four described gas exhaust manifold arms are all in streamlined, air inlet horizontal pipe and vertical pipeline joint of giving vent to anger are Rouno Cormer Pregrinding Wheel transition, and the first gas exhaust manifold arm (2-1) and the 4th gas exhaust manifold arm (2-4) that are wherein positioned at both sides are longer than the second gas exhaust manifold arm (2-2) and the 3rd gas exhaust manifold arm (2-3) that are positioned at centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520703574.5U CN205047286U (en) | 2015-09-11 | 2015-09-11 | Structure of engine exhaust manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520703574.5U CN205047286U (en) | 2015-09-11 | 2015-09-11 | Structure of engine exhaust manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205047286U true CN205047286U (en) | 2016-02-24 |
Family
ID=55340872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520703574.5U Expired - Fee Related CN205047286U (en) | 2015-09-11 | 2015-09-11 | Structure of engine exhaust manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205047286U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826700A (en) * | 2019-04-01 | 2019-05-31 | 安徽华菱汽车有限公司 | A kind of exhaust manifold, air inlet system and exhaust system and automobile |
-
2015
- 2015-09-11 CN CN201520703574.5U patent/CN205047286U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109826700A (en) * | 2019-04-01 | 2019-05-31 | 安徽华菱汽车有限公司 | A kind of exhaust manifold, air inlet system and exhaust system and automobile |
| CN109826700B (en) * | 2019-04-01 | 2024-01-30 | 安徽华菱汽车有限公司 | Exhaust manifold, air inlet and exhaust system and automobile |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20170911 |