CN207554225U - A kind of cooler for recycled exhaust gas of high cooling efficiency - Google Patents
A kind of cooler for recycled exhaust gas of high cooling efficiency Download PDFInfo
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- CN207554225U CN207554225U CN201721706318.7U CN201721706318U CN207554225U CN 207554225 U CN207554225 U CN 207554225U CN 201721706318 U CN201721706318 U CN 201721706318U CN 207554225 U CN207554225 U CN 207554225U
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- heat
- dissipating pipe
- exhaust gas
- cooler
- housing
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Abstract
The utility model discloses a kind of cooler for recycled exhaust gas of high cooling efficiency, several heat-dissipating pipes including housing and in housing；Housing both ends are connected to the heat-dissipating pipe to form water flow passage between housing and heat-dissipating pipe by flange part；The air inlet of the heat-dissipating pipe and gas outlet are located at cooler both ends respectively, and the heat-dissipating pipe divides inside housings is formed by bending class S-shaped pipeline.Existing straight-through heat-dissipating pipe is designed to S types by the utility model design, can not only slow down the flow velocity of exhaust gas, and can more times of ground improve the heat exchange stroke of exhaust gas, can effectively extend the heat exchanger time of exhaust gas and cooling water in heat-dissipating pipe, promote the radiating efficiency of cooler.
Description
Technical field
The present invention relates to a kind of cooler for recycled exhaust gas, specially a kind of cooler for recycled exhaust gas of high cooling efficiency.
Background technology
In recent years, the requirement for light commercial vehicle power plant is more and more harsh.To obtain better economy and effect
Rate, commercial vehicle engine must reduce fuel oil consumption, while improve power and torque.For this purpose, for decades, light commercial vehicle all with
Whole capability is main power source better than the modern diesel engine of other power.
Since 6 waste gas emission standard of Europe improves the requirement to engine exhaust emission performance, must especially reduce new
Exhaust gas discharge after European driving pattern (NEDC) cold start, thus high pressure EGR exhaust recycling cooling system need to be greatly improved
Efficiency.
Current, existing cooler for recycled exhaust gas structure mainly includes housing and several heat-dissipating pipes, and housing both ends are connected by flange part
Then heat-dissipating pipe and water flow passage is formed between housing and heat-dissipating pipe, water flow passage by the inlet and outlet on housing with it is outer
Boundary's water realizes cycle connection.
Here, the specific structure because being limited to engine, the air inlet of cooler and gas outlet are normally at cooler
Both ends, and heat-dissipating pipe uses straight pipe structure, which so that the flow of exhaust gas is too short and flow velocity is too fast, seriously affects
The heat exchanger time of exhaust gas and cooling water in heat-dissipating pipe, affects cooling effect, eventually leads to the cooling effect of cooler
It is difficult to the needs for meeting engine real work.
Invention content
In view of the above-mentioned problems, the present invention devises a kind of cooler for recycled exhaust gas of high cooling efficiency, by existing straight-through heat dissipation
Pipe is designed to S types, can not only slow down the flow velocity of exhaust gas, and can more times of ground improve the heat exchange stroke of exhaust gas, can effectively extend scattered
The heat exchanger time of exhaust gas and cooling water in heat pipe promotes the radiating efficiency of cooler.
To achieve the above object, the present invention uses following technical scheme：
A kind of cooler for recycled exhaust gas of high cooling efficiency, several heat-dissipating pipes including housing and in housing；Housing both ends lead to
Flange part is crossed to be connected to the heat-dissipating pipe and form water flow passage between housing and heat-dissipating pipe；The air inlet of the heat-dissipating pipe and go out
Gas port is located at cooler both ends respectively, it is characterised in that：The heat-dissipating pipe divides inside housings is formed by bending class S-shaped pipeline.
Further, above-mentioned water flow passage is connected by water inlet, the water outlet on housing with outside water cycle.
Heat-dissipating pipe is designed to the swan-neck structure of class S-shaped by present invention design, can not only effectively slow exhaust gas in pipeline
In flow velocity, and certain flow-disturbing effect can be generated, while compared to straight-through heat-dissipating pipe, similar twice of cooling stream can be increased
Journey can significantly improve the heat exchanger time of exhaust gas and cooling water in heat-dissipating pipe, promote the radiating efficiency of cooler.
Description of the drawings
The planar structure sectional view of Fig. 1, the present invention.
Specific embodiment
As shown in Figure 1, a kind of cooler for recycled exhaust gas of high cooling efficiency, several heat-dissipating pipes including housing 1 and in housing
2。
1 both ends of housing are connected to the heat-dissipating pipe 2 to form water flow passage between housing 1 and heat-dissipating pipe 2 by flange part 3
4, water flow passage leads to 4 water inlets 11 crossed on housing, water outlet 12 is connected with outside water cycle.
The air inlet 21 of the heat-dissipating pipe 2 and gas outlet 22 are located at cooler both ends respectively.
The heat-dissipating pipe 2 divides inside housings is formed by bending class S-shaped pipeline.
Heat-dissipating pipe 2 is designed to the bending coil arrangement of class S-shaped by present invention design, can not only effectively slow exhaust gas in pipe
Flow velocity in road, and certain flow-disturbing effect can be generated, compared to straight-through heat-dissipating pipe, similar twice of cooling stream can be increased
Journey can significantly improve the heat exchanger time of exhaust gas and cooling water in heat-dissipating pipe, promote the radiating efficiency of cooler.
The above is only the better embodiment of the present invention, not makees limitation in any form to the present invention, every
Technical principle any simple modification made to the above embodiment, equivalent variations or modification according to the present invention, still fall within this hair
In the range of bright technical solution.
Claims (2)
1. a kind of cooler for recycled exhaust gas of high cooling efficiency, several heat-dissipating pipes including housing and in housing；Housing both ends pass through
Flange part is connected to the heat-dissipating pipe and water flow passage is formed between housing and heat-dissipating pipe；The air inlet and outlet of the heat-dissipating pipe
Mouth is located at cooler both ends respectively, it is characterised in that：The heat-dissipating pipe divides inside housings is formed by bending class S-shaped pipeline.
2. a kind of cooler for recycled exhaust gas of high cooling efficiency as described in claim 1, is characterized in that：The water flow passage passes through housing
On water inlet, water outlet and outside water cycle connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721706318.7U CN207554225U (en) | 2017-12-11 | 2017-12-11 | A kind of cooler for recycled exhaust gas of high cooling efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721706318.7U CN207554225U (en) | 2017-12-11 | 2017-12-11 | A kind of cooler for recycled exhaust gas of high cooling efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554225U true CN207554225U (en) | 2018-06-29 |
Family
ID=62666417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721706318.7U Active CN207554225U (en) | 2017-12-11 | 2017-12-11 | A kind of cooler for recycled exhaust gas of high cooling efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207554225U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110344967A (en) * | 2019-08-20 | 2019-10-18 | 中国重汽集团济南动力有限公司 | A kind of single channel of in-line five cylinders diesel engine takes EGR exhaust system |
-
2017
- 2017-12-11 CN CN201721706318.7U patent/CN207554225U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110344967A (en) * | 2019-08-20 | 2019-10-18 | 中国重汽集团济南动力有限公司 | A kind of single channel of in-line five cylinders diesel engine takes EGR exhaust system |
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