CN220551186U - Novel EGR cooler - Google Patents
Novel EGR cooler Download PDFInfo
- Publication number
- CN220551186U CN220551186U CN202321834940.1U CN202321834940U CN220551186U CN 220551186 U CN220551186 U CN 220551186U CN 202321834940 U CN202321834940 U CN 202321834940U CN 220551186 U CN220551186 U CN 220551186U
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- CN
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- Prior art keywords
- shell
- cooling
- air inlet
- air outlet
- air
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- 238000001816 cooling Methods 0.000 claims abstract description 111
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000005219 brazing Methods 0.000 abstract description 13
- 238000009434 installation Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000641 cold extrusion Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a novel EGR cooler, comprising: the cooling device comprises a cooling shell, an air outlet part and an air inlet part, wherein connecting interfaces are formed in two sides of the cooling shell, the air inlet part comprises an air inlet flange, a first half shell and a second half shell, the first half shell and the second half shell are spliced to form the air inlet shell, an air inlet and an air supply interface which are mutually communicated are formed in the air inlet shell, the air inlet shell is connected with the air inlet flange, and the air supply interface is identical to the connecting interfaces in size and opposite to the connecting interfaces. The novel brazing furnace has the beneficial effects that the novel air inlet shell is formed by arranging the first half shell and the second half shell, and the first half shell and the second half shell are combined to form the novel air inlet shell and are arranged in a rectangular shape after being combined, so that the residual stress of the first half shell and the second half shell is smaller in the forming process, and when the brazing furnace is used for high-temperature brazing, the stress release is reduced, and the position degree of the air inlet flange after the brazing furnace is discharged is ensured; the installation is not affected; the sectional area of the gas entering the cooling cavity is increased, so that the pressure drop loss of the gas is small, and the efficiency of the engine is improved.
Description
Technical Field
The utility model relates to the technical field of EGR coolers, in particular to a novel EGR cooler.
Background
The EGR cooler is an important part in the whole automobile, and the EGR has outstanding effects on energy conservation and oil consumption reduction in the automobile, and has remarkable effect on emission reduction.
The cooler in the prior art is shown in fig. 3 and consists of an air inlet flange, an air inlet corrugated pipe, an air inlet chamber, a partition plate, a cooler shell, a bracket, an air outlet chamber, an air outlet flange, an air inlet pipe, an air outlet pipe and the like. One end and the inlet flange connection of inlet corrugated pipe, the other end is connected with the inlet chamber, and the one end and the inlet chamber of cooler casing are connected, and the other end is connected with the outlet chamber, and the upper and lower both ends of cooler casing are provided with outlet pipe and inlet tube respectively, and still are provided with the support on the cooler casing, all are provided with the baffle between cooler casing and inlet chamber and the outlet chamber, and the inlet chamber is kept away from the one end of cooler casing and is connected with the outlet flange. The intake bellows is usually formed by a hydraulic forming process, a rolling forming process and the like, and the thin-wall cylinder body rolled into a cylinder is processed into the bellows by a cold extrusion mode. Because of the uneven plastic deformation in the forming process, larger residual stress is generated in the formed air inlet corrugated pipe; the cooler must be heated by a brazing furnace in production, and the high temperature in the furnace can release the stress remained in the air inlet corrugated pipe, so that the position degree of the air inlet flange at the end of the client is finally poor, and the assembly is difficult to install after reaching the client.
The air inlet cavity is formed in one side of a cooler shell of the existing EGR cooler, an air supply interface communicated with the air inlet cavity is formed in one side, close to the cooler shell, of the air inlet shell, the cooling cavity is formed in the cooler shell, the air inlet cavity is communicated with the cooling cavity, an air inlet is formed in one side, far away from the cooler shell, of the air inlet shell, an air inlet corrugated pipe is inserted into the air inlet, a pipeline of the air inlet corrugated pipe is communicated with the air inlet cavity, air enters the cooling cavity from the pipeline of the air inlet corrugated pipe and then enters the cooling cavity, the other end of the air inlet corrugated pipe is connected with an air inlet flange, air can enter the cooling cavity after entering the air inlet cavity of the air inlet shell through a small air inlet of the slender air inlet corrugated pipe, and the air needs to pass through the air inlet corrugated pipe with a small section, so that the loss of air pressure drop is large, and the efficiency of the engine is reduced; and some air inlet shells are sleeved on the cooling shells, so that the diameter of the air inlet shells is larger than that of the cooling shells, gas can strike the side walls of the cooling shells, and the pressure drop loss of the gas is large.
Disclosure of Invention
The utility model aims to solve the problems that the high temperature in the furnace can release the stress remained in the air inlet corrugated pipe, and finally the position degree of an air inlet flange at the end of a client is poor, and the assembly is difficult to install after reaching the client; the gas needs to pass through the intake bellows with smaller section, so that the pressure drop loss of the gas is large, the engine efficiency is reduced, the diameter of the intake shell is larger than that of the cooling shell, the gas can strike the side wall of the cooling shell, and the problem of high pressure drop loss of the gas can be caused.
In order to solve the above problems, the present utility model provides a novel EGR cooler including: the cooling device comprises a cooling shell, an air outlet part arranged on one side of the cooling shell and an air inlet part arranged on the other side of the cooling shell, wherein the cooling shell is provided with a cooling cavity, two sides of the cooling shell are provided with connecting interfaces which are identical in size and are communicated with the vertical section of the cooling cavity of the cooling shell, the air inlet part comprises an air inlet flange, a first half shell and a second half shell, the first half shell and the second half shell are spliced to form the air inlet shell, an air inlet cavity is arranged on the air inlet shell, an air inlet and an air supply interface which are communicated with the air inlet cavity are arranged on the air inlet shell, the position, corresponding to the air inlet, of the air inlet is connected with the air inlet flange, the air inlet is provided with an air inlet hole, the air inlet hole is communicated with the air inlet cavity, the air supply interface is communicated with the connecting interfaces of the cooling shell, and the air inlet cavity is communicated with the cooling cavity, and the air supply interface is opposite to the connecting interfaces on one side, and the connecting interfaces on the other side are opposite to the air outlet part.
In the scheme, the first half shell and the second half shell are combined to form the novel air inlet shell, the first half shell and the second half shell do not need to be processed with ripples in the forming process, the residual stress is small, the stress release can be reduced when the brazing furnace is entered for high-temperature brazing, and the position degree of an air inlet flange after the brazing furnace is discharged is ensured; subsequent installation is not affected; the novel air inlet shell replaces the original air inlet cavity and the original air inlet corrugated pipe, air enters the air inlet cavity from the air inlet hole of the air inlet flange and then enters the cooling cavity, the running section of the air is enlarged, so that the loss of air pressure drop is small, the efficiency of the engine is improved, the air inlet interface is identical to the connecting interface in size and opposite to the connecting interface in position, the air can not collide, and the loss of air pressure drop is small.
Preferably, the first half shell and the second half shell are formed by a press forming process.
In this scheme, through the fashioned first half shell of stamping forming technology and second half shell can reduce the residual stress of part, guarantees to pass brazing furnace heating high temperature after with the position degree of the inlet flange of connection better.
Preferably, a first partition plate used for connecting the cooling shell and the air inlet shell is arranged between the cooling shell and the air inlet shell, a first through hole used for communicating the air inlet cavity with the cooling cavity is formed in the first partition plate, and the first through hole is used for axially inserting the air inlet shell and the cooling shell.
In this scheme, first baffle is used for connecting air inlet housing and cooling housing.
Preferably, the upper and lower ends of the cooling housing are provided with brackets for fixing the cooling housing.
In this scheme, the support can be conveniently fixed in the predetermined position with the cooler, makes things convenient for the installation of cooler.
Preferably, the upper end and the lower end of the cooling shell are respectively provided with a water outlet pipe and a water inlet pipe which are communicated with the cooling cavity.
In this scheme, the inlet tube is used for intaking, and the outlet pipe is used for out water, and both are linked together with the cooling chamber.
Preferably, the air outlet part comprises an air outlet shell and an air outlet flange, the air outlet shell is provided with an air outlet cavity, the air outlet shell is connected with one side, far away from the air inlet shell, of the cooling shell, the air outlet cavity is communicated with the cooling cavity through a connecting interface on the other side, the air outlet flange is connected to the air outlet shell, the air outlet flange is provided with an air outlet hole, and the air outlet hole is communicated with the air outlet cavity.
In this scheme, the gas passes through the cooling chamber and then passes through the air outlet chamber, and is discharged from the venthole at last.
As a further preferable mode, a second partition plate used for connecting the cooling shell and the air outlet shell is arranged between the cooling shell and the air outlet shell, a second through hole used for communicating the air outlet cavity with the cooling cavity is formed in the second partition plate, and the second through hole is used for axially inserting the air outlet shell and the cooling shell.
In this scheme, the second baffle is used for connecting the casing of giving vent to anger and cooling body.
Drawings
FIG. 1 is a schematic diagram of the structure of a novel EGR cooler of the present utility model;
FIG. 2 is a schematic diagram of the explosive structure of the novel EGR cooler of the present utility model;
fig. 3 is another schematic structural view of the novel EGR cooler of the present utility model.
Reference numerals illustrate: 1. an air inlet flange; 2. a first half-shell; 3. a second half-shell; 4. a first separator; 5. cooling the housing; 6. a bracket; 7. a water outlet pipe; 8. a water inlet pipe; 9. an air outlet housing; 10. an air outlet flange; 11. and a second separator.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In a preferred embodiment of the present utility model, based on the above-mentioned problems occurring in the prior art, there is now provided a novel EGR cooler, as shown in fig. 1, comprising: the cooling device comprises a cooling shell 5, an air outlet part arranged on one side of the cooling shell 5 and an air inlet part arranged on the other side of the cooling shell 5, wherein the cooling shell 5 is provided with a cooling cavity, the two sides of the cooling shell 5 are provided with connection interfaces which are the same as the cooling cavity in vertical section size and are communicated with the cooling cavity, the air inlet part comprises an air inlet flange 1, a first half shell 2 and a second half shell 3, the first half shell 2 and the second half shell 3 are spliced to form the air inlet shell, the air inlet shell is provided with an air inlet cavity, an air inlet and an air supply interface which are communicated with the air inlet cavity are arranged on the air inlet shell, the position, corresponding to the air inlet, of the air inlet shell is connected with the air inlet flange 1, the air inlet is communicated with the air inlet cavity through the air inlet, the air supply interface is communicated with the cooling cavity, the size of the connection interface on one side is just opposite to the connection interface on the other side, and the connection interface on the other side is connected with the air outlet part. The first half-shell 2 and the second half-shell 3 are both formed by a press forming process.
Specifically, in this embodiment, the vertical section of the cooling cavity is a section perpendicular to the upper surface of the cooling casing; the first half shell 2 and the second half shell 3 replace the original air inlet corrugated pipe and the original air inlet shell, the first half shell 2 and the second half shell 3 are processed and fixed into a new air inlet shell in a stamping forming and welding mode, and the internal residual stress is small; the small-section circular pipe of the original air inlet corrugated pipe is changed into a larger rectangular section, more air passes through per unit time, and the distance is changed to be closer, so that the loss of pressure drop of the air is small; by arranging the first half shell 2 and the second half shell 3, the novel air inlet shell formed by combining the first half shell 2 and the second half shell 3 has smaller residual stress in the forming process, and the stress release can be reduced when the brazing furnace is entered for high-temperature brazing, so that the position degree of the air inlet flange 1 after the brazing furnace is discharged is ensured; subsequent installation is not affected; an air inlet is formed in one end of the air inlet shell, the position of the air inlet is connected with the air inlet flange 1, and the air inlet cavity is communicated with the cooling cavity; the novel air inlet shell replaces the original air inlet cavity and the original air inlet corrugated pipe, air enters the air inlet cavity from the air inlet, then enters the cooling cavity, the running section of the air is enlarged, so that the loss of the pressure drop of the air is small, the efficiency of the engine is improved, the air supply interface is identical to the connecting interface in size and opposite to the connecting interface in position, the air can not collide, and the loss of the pressure drop of the air is small.
The upper and lower ends of the cooling housing 5 are provided with brackets 6 for fixing the cooling housing 5. A first partition board 4 for connecting the cooling shell 5 and the air inlet shell is arranged between the cooling shell 5 and the air inlet shell, a first through hole for communicating the air inlet cavity and the cooling cavity is formed in the first partition board 4, and the first through hole is used for axially inserting the air inlet shell and the cooling shell 5. The upper end and the lower end of the cooling shell 5 are respectively provided with a water outlet pipe 7 and a water inlet pipe 8 which are communicated with the cooling cavity.
Specifically, in the present embodiment, the first partition plate 4 is used to connect the intake housing and the cooling housing 5. The air inlet shell is inserted from one side of the first through hole of the first partition board, and the cooling shell 5 is inserted from the other side of the first through hole of the first partition board, so that the cooling cavity of the cooling shell 5 is communicated with the air inlet cavity of the air inlet shell and is opposite to the air inlet cavity, and gas can not strike the edge of the cooling shell 5 when entering the cooling cavity from the air inlet cavity; the bracket 6 can conveniently fix the cooler at a preset position, and is convenient for installing the cooler. The water inlet pipe 8 is used for water inlet, the water outlet pipe 7 is used for water outlet, and the water inlet pipe and the water outlet pipe are communicated with the cooling cavity. The bracket 6 is an L-shaped connecting plate; one of the right-angle surfaces on the L-shaped connecting plate is fixedly connected with the cooling shell 5, and the other right-angle surface is provided with a connecting hole for being connected with other positions to fix the cooler.
The air outlet part comprises an air outlet shell 9 and an air outlet flange 10, the air outlet shell 9 is provided with an air outlet cavity, the air outlet shell 9 is connected with one side, far away from the air inlet shell, of the cooling shell 5, the air outlet cavity is communicated with the cooling cavity through a connecting interface at the other side, the air outlet flange 10 is connected to the air outlet shell 9, and the air outlet flange 10 is provided with an air outlet hole communicated with the air outlet cavity. A second partition plate 11 for connecting the cooling shell 5 and the air outlet shell 9 is arranged between the cooling shell 5 and the air outlet shell 9, a second through hole for communicating the air outlet cavity and the cooling cavity is formed in the second partition plate 11, and the second through hole is used for axially inserting the air outlet shell 9 and the cooling shell 5.
Specifically, in this embodiment, the gas enters the gas outlet chamber after passing through the cooling chamber, and then is discharged from the gas outlet chamber through the second partition 11 to connect the gas outlet housing 9 and the cooling housing 5. The air outlet shell 9 is inserted from one side of the second through hole of the second partition board, and the cooling shell 5 is inserted from the other side of the second through hole of the second partition board, so that the cooling cavity of the cooling shell 5 is communicated with the air outlet cavity of the air outlet shell 9 and is opposite to the air outlet cavity, and gas can not strike the edge of the air outlet shell 9 when entering the air outlet cavity from the cooling cavity; through adopting two part stamping forming, and the bigger first half casing 2 of cross-section and second half casing 3, not only improved the deformation problem of air inlet flange 1 behind the cooler through the brazing furnace, solved air inlet flange 1 and installed the installation problem in the customer end, make the gas pressure drop of whole cooler system less simultaneously, make engine efficiency higher.
Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.
Claims (7)
1. The utility model provides a novel EGR cooler, includes cooling shell (5), locates the portion of giving vent to anger of cooling shell (5) one side with locate the portion of admitting air of the opposite side of cooling shell (5), cooling cavity has been seted up to cooling shell (5), the both sides of cooling shell (5) seted up with the vertical cross-section size of cooling cavity of cooling shell (5) is the same and the connection interface of intercommunication, a serial communication port, admitting air portion includes inlet flange (1), first half shell (2) and second half shell (3), first half shell (2) with second half shell (3) concatenation forms the inlet casing, set up the inlet chamber on the inlet casing, be provided with the intercommunication on the inlet casing inlet chamber's air inlet and air feed interface, on the inlet casing with the corresponding position of inlet is connected with inlet flange (1), the inlet port passes through the inlet port with the air feed interface intercommunication of cooling shell (5) makes the connection interface intercommunication of inlet chamber with the opposite side is just connected with the connection interface is big just to the connection interface of the opposite side of cooling shell (5) is connected with the connection interface is big.
2. The novel EGR cooler as claimed in claim 1, characterized in that the first half-shell (2) and the second half-shell (3) are both formed by a press forming process.
3. The novel EGR cooler according to claim 1, characterized in that a first partition plate (4) for connecting the cooling shell (5) and the air intake shell is arranged between the cooling shell and the air intake shell, a first through hole for communicating the air intake cavity and the cooling cavity is formed in the first partition plate (4), and the first through hole is used for axially inserting the air intake shell and the cooling shell (5).
4. The novel EGR cooler as claimed in claim 1, characterized in that the cooling housing (5) is provided at its upper and lower ends with brackets (6) for fixing the cooling housing (5).
5. The novel EGR cooler as claimed in claim 1, characterized in that the upper and lower ends of the cooling housing (5) are further provided with a water outlet pipe (7) and a water inlet pipe (8), respectively, which communicate with the cooling chamber.
6. The novel EGR cooler according to claim 1, characterized in that the air outlet part comprises an air outlet shell (9) and an air outlet flange (10), an air outlet cavity is formed in the air outlet shell (9), the air outlet shell (9) is connected with one side, far away from the air inlet shell, of the cooling shell (5), the air outlet cavity is communicated with the cooling cavity through the connecting interface on the other side, the air outlet flange (10) is connected to the air outlet shell (9), an air outlet hole is formed in the air outlet flange (10), and the air outlet hole is communicated with the air outlet cavity.
7. The novel EGR cooler according to claim 6, wherein a second partition plate (11) for connecting the cooling shell (5) and the air outlet shell (9) is arranged between the cooling shell and the air outlet shell, a second through hole for communicating the air outlet cavity and the cooling cavity is formed in the second partition plate (11), and the second through hole is used for axially inserting the air outlet shell (9) and the cooling shell (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321834940.1U CN220551186U (en) | 2023-07-13 | 2023-07-13 | Novel EGR cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321834940.1U CN220551186U (en) | 2023-07-13 | 2023-07-13 | Novel EGR cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220551186U true CN220551186U (en) | 2024-03-01 |
Family
ID=90006598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321834940.1U Active CN220551186U (en) | 2023-07-13 | 2023-07-13 | Novel EGR cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220551186U (en) |
-
2023
- 2023-07-13 CN CN202321834940.1U patent/CN220551186U/en active Active
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