CN204003040U - The petrolic rear-guard exhaust manifold assembly of a kind of multi-cylinder - Google Patents
The petrolic rear-guard exhaust manifold assembly of a kind of multi-cylinder Download PDFInfo
- Publication number
- CN204003040U CN204003040U CN201420367821.4U CN201420367821U CN204003040U CN 204003040 U CN204003040 U CN 204003040U CN 201420367821 U CN201420367821 U CN 201420367821U CN 204003040 U CN204003040 U CN 204003040U
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- China
- Prior art keywords
- air flue
- exhaust manifold
- guard
- cylinder
- mounting plate
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- Expired - Fee Related
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Abstract
The utility model relates to the petrolic rear-guard exhaust manifold assembly of a kind of multi-cylinder, comprise mounting plate, many air flues, exhaust exit pipe, sphere mounting flange and lambda sensors, many air flue one end is located on mounting plate, many air flue the other ends between two air flue converge, after merging into a road, air flue is connected with exhaust exit pipe one end, at air flue and exhaust exit pipe joint, lambda sensor is installed, the other end of exhaust exit pipe is provided with sphere mounting flange, sphere mounting flange comprises flange mounting plate and cylinder is installed, cylinder is installed and is located on flange mounting plate.Adopt the air-flow that air flue converges between two, the pressure loss reduces 20%, has improved engine performance, has reduced the interference between air-flow, and each cylinder nonuniformity of gas exhaust manifold effectively reduces, and it is more stable that lambda sensor obtains signal; At the final concourse of air flue, lambda sensor is installed, is effectively monitored engine exhaust oxygen content, reasonably control engine air fuel ratio, improves engine performance and fuel economy.
Description
Technical field
The utility model belongs to automobile and sends out machine field eastern, relates in particular to the petrolic rear-guard exhaust manifold assembly of a kind of multi-cylinder.
Background technique
At present, with regard to four cylinder engine, due to the overlapping unlatching of inlet and exhaust valve, there will be exhaust waste gas refluence phenomenon, exhaust is not smooth, affects the charge efficiency of motor, causes engine performance on the low side, optimizes gas exhaust manifold pipeline rout and is conducive to improve engine performance.
Now volume production four cylinder engine, is 4-1 exhaust manifold structure mostly, between each cylinder interference in air flow larger, easily cause exhaust back pressure to increase, affect the performance of motor.And it is also unfavorable that the impact that is disturbed air-flow is obtained stable signal to lambda sensor;
Gas exhaust manifold air outlet employing face-flange and three is urged and being connected, and area of contact is large, and pretension specific pressure is large, need to select the bolt that bearing capacity is larger, and pad is easily extruded, poor sealing performance.
Model utility content
The utility model provides a kind of multi-cylinder petrolic rear-guard exhaust manifold assembly, be intended to solve gas exhaust manifold exhaust not smooth, cause the larger problem of interference in air flow between each cylinder.
The utility model is to realize like this, the petrolic rear-guard exhaust manifold assembly of a kind of multi-cylinder, this rear-guard gas exhaust manifold comprises mounting plate, many air flues, exhaust exit pipe, sphere mounting flange and lambda sensor, many described air flue one end is located on described mounting plate, many described air flue the other ends between two air flue converge, after merging into a road, described air flue is connected with described exhaust exit pipe one end, at described air flue and exhaust exit pipe joint, lambda sensor is installed, the other end of described exhaust exit pipe is provided with described sphere mounting flange, described sphere mounting flange comprises flange mounting plate and cylinder is installed, described installation cylinder is located on described flange mounting plate.
Further technological scheme of the present utility model is: this rear-guard gas exhaust manifold also comprises ball face sealing circle, and described ball face sealing circle is located on described sphere mounting flange.
Further technological scheme of the present utility model is: described air flue is four.
Further technological scheme of the present utility model is: two to converge described air flue function identical or close.
Further technological scheme of the present utility model is: the edge of described mounting plate is provided with installation screw.
Further technological scheme of the present utility model is: described air flue is provided with fixing lug boss.
Further technological scheme of the present utility model is: this rear-guard exhaust manifold assembly adopts cast iron integrally casting to form.
The beneficial effects of the utility model are: adopt the air-flow that air flue converges between two, the pressure loss reduces 20%, has improved engine performance; Air flue converges structure and reduces the interference between air-flow between two, and each cylinder nonuniformity of gas exhaust manifold is effectively reduced, and the signal that lambda sensor obtains is more stable; At four final concourses of manifold air flue, lambda sensor is installed, is more effectively monitored the oxygen content of engine exhaust, the air fuel ratio of more rational control engine, improves engine performance and fuel economy; With three connections of urging, adopt spherical flange structure to join ball face sealing circle, spherical fitting surface compensates when flange temperature distortion, and sealability is better.
Accompanying drawing explanation
Fig. 1 is the petrolic rear-guard exhaust manifold assembly structure of the multi-cylinder schematic diagram one that the utility model embodiment provides;
Fig. 2 is the rear-guard exhaust manifold assembly structure schematic diagram two of the cylinder gasoline engine that provides of the utility model embodiment.
Embodiment
Reference character: 1-mounting plate 2-exhaust exit pipe 3-sphere mounting flange 4-air flue 5-fixing lug boss 6-cylinder cap 7-lambda sensor 8-ball face sealing circle 9-tri-urges
As Fig. 1, shown in 2, the petrolic rear-guard exhaust manifold assembly of multi-cylinder that the utility model provides, this rear-guard gas exhaust manifold comprises mounting plate 1, many air flues 4, exhaust exit pipe 2, sphere mounting flange 3 and lambda sensor 7, many described air flue 4 one end are located on described mounting plate 1, many described air flue 4 the other ends between two air flue converge, after merging into a road, described air flue 4 is connected with described exhaust exit pipe 2 one end, at described air flue 4, with exhaust exit pipe 2 joints, lambda sensor 7 is installed, the other end of described exhaust exit pipe 2 is provided with described sphere mounting flange 3, described sphere mounting flange 3 comprises flange mounting plate and cylinder is installed, described installation cylinder is located on described flange mounting plate.Adopt the air-flow that air flue 4 converges between two, the pressure loss reduces 20%, has improved engine performance; Air flue 4 converges structure and reduces the interference between air-flow between two, and each cylinder nonuniformity of gas exhaust manifold is effectively reduced, and the signal that lambda sensor 7 obtains is more stable; At the final concourse of four manifold air flues 4, lambda sensor 7 is installed, is more effectively monitored the oxygen content of engine exhaust, the air fuel ratio of more rational control engine, improves engine performance and fuel economy; Urge 9 connection to adopt spherical flange structure to join ball face sealing circle 8 with three, spherical fitting surface compensates when flange temperature distortion, and sealability is better.
This rear-guard gas exhaust manifold also comprises ball face sealing circle 8, and described ball face sealing circle 8 is located on described sphere mounting flange 3.Improve air outlet flange and three and urge the sealing of 9 joints.
Described air flue 4 is four.
Article two, converge described air flue 4 functions identical or close.
The edge of described mounting plate 1 is provided with installation screw.
On described air flue, 3 are provided with fixing lug boss.Be used for fixedly air flue.
This rear-guard exhaust manifold assembly adopts cast iron integrally casting to form.
New design gas exhaust manifold has been applied on SGMW N12RWD motor, by practical application, proves, the manifold after optimization is more conducive to the performance of motor;
The choose reasonable of lambda sensor position is more conducive to obtain stabilization signal;
Urge with three the optimization being connected, strengthened the sealability at this place.
By bolt, rear-guard exhaust manifold assembly is fixed on cylinder cap 6, urging 9 to be connected to form vent systems with the sphere mounting flange 3 of rear-guard exhaust manifold assembly by three, the waste gas in each cylinder is discharged.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. the petrolic rear-guard exhaust manifold assembly of multi-cylinder, it is characterized in that: this rear-guard gas exhaust manifold comprises mounting plate, many air flues, exhaust exit pipe, sphere mounting flange and lambda sensor, many described air flue one end is located on described mounting plate, many described air flue the other ends between two air flue converge, after merging into a road, described air flue is connected with described exhaust exit pipe one end, at described air flue and exhaust exit pipe joint, lambda sensor is installed, the other end of described exhaust exit pipe is provided with described sphere mounting flange, described sphere mounting flange comprises flange mounting plate and cylinder is installed, described installation cylinder is located on described flange mounting plate.
2. rear-guard exhaust manifold assembly according to claim 1, is characterized in that, this rear-guard gas exhaust manifold also comprises ball face sealing circle, and described ball face sealing circle is located on described sphere mounting flange.
3. rear-guard exhaust manifold assembly according to claim 2, is characterized in that, described air flue is four.
4. rear-guard exhaust manifold assembly according to claim 3, is characterized in that, two are converged described air flue and light a fire non-conterminous.
5. rear-guard exhaust manifold assembly according to claim 4, is characterized in that, the edge of described mounting plate is provided with installation screw.
6. rear-guard exhaust manifold assembly according to claim 5, is characterized in that, described air flue is provided with fixing lug boss.
7. according to the rear-guard exhaust manifold assembly described in claim 1-6 any one, it is characterized in that, this rear-guard exhaust manifold assembly adopts cast iron integrally casting to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420367821.4U CN204003040U (en) | 2014-07-04 | 2014-07-04 | The petrolic rear-guard exhaust manifold assembly of a kind of multi-cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420367821.4U CN204003040U (en) | 2014-07-04 | 2014-07-04 | The petrolic rear-guard exhaust manifold assembly of a kind of multi-cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003040U true CN204003040U (en) | 2014-12-10 |
Family
ID=52043058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420367821.4U Expired - Fee Related CN204003040U (en) | 2014-07-04 | 2014-07-04 | The petrolic rear-guard exhaust manifold assembly of a kind of multi-cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003040U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104934A (en) * | 2016-11-25 | 2018-06-01 | 三菱自动车工业株式会社 | The connector of exhaust pipe |
-
2014
- 2014-07-04 CN CN201420367821.4U patent/CN204003040U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104934A (en) * | 2016-11-25 | 2018-06-01 | 三菱自动车工业株式会社 | The connector of exhaust pipe |
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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: 20141210 Termination date: 20200704 |