CN215761974U - Cooling EGR assembly - Google Patents
Cooling EGR assembly Download PDFInfo
- Publication number
- CN215761974U CN215761974U CN202121901437.4U CN202121901437U CN215761974U CN 215761974 U CN215761974 U CN 215761974U CN 202121901437 U CN202121901437 U CN 202121901437U CN 215761974 U CN215761974 U CN 215761974U
- Authority
- CN
- China
- Prior art keywords
- egr
- water
- chamber
- inlet
- cooler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Abstract
A cooling EGR assembly belongs to the technical field of automobile exhaust gas recirculation systems. The EGR assembly adopts the cooled EGR arranged at the cold end after the EGR cooler is added, so that the waste gas quantity and the EGR rate can be effectively increased, and better contribution is made to reducing oil consumption and emission. The EGR cooler is of a gas-liquid separation structure, the EGR cooler, the EGR valve, the gas outlet chamber and the gas inlet chamber jointly form a gas passage, the EGR cooler, the water outlet pipe switching water chamber, the water inlet pipe and the water outlet pipe jointly form a liquid passage, and cooling liquid flows in the liquid passage to perform cooling heat exchange on high-temperature waste gas flowing in the gas passage. This EGR assembly passes through the reduction of cooler to exhaust gas temperature, can effectively increase exhaust gas volume and EGR rate, and low temperature waste gas is bigger to reducing oil consumption, emission contribution when participating in the jar internal combustion, optimizes inlet tube structure, directly gets water through the integrated water pipe of cooler, has removed the heat harm risk that the rubber tube brought from, realizes the compacter structure simultaneously in limited space.
Description
Technical Field
The utility model belongs to the technical field of automobile exhaust gas recirculation systems, and particularly relates to a cooling EGR assembly.
Background
Aiming at increasingly severe oil consumption requirements, the cooling EGR technology becomes the current first-choice strategy for reducing oil consumption of gasoline engines, and based on the fact that external rubber pipes are generally adopted in waterway pipeline schemes on the current market, the external rubber pipes are simple in structure and easy to install, but if a heat source is relatively close, heat damage risks can be caused, and the bending radius of the rubber pipes is relatively large, so that space saving is not facilitated.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the background art, the cooled EGR assembly provided by the utility model adopts the cooled EGR arranged at the cold end after the EGR cooler is added, so that the exhaust gas quantity and the EGR rate can be effectively increased, and better contribution is made to reducing the oil consumption and the emission.
The technical scheme adopted for solving the technical problems is as follows: a cooling EGR assembly comprises an EGR cooler, a water outlet pipe switching water chamber, an EGR valve, an air outlet chamber, a water inlet pipe switching water chamber, an air inlet chamber, a water inlet pipe and a water outlet pipe.
The inlet end of EGR cooler is connected with the end of giving vent to anger of inlet chamber, the end of giving vent to anger of EGR cooler links to each other with the EGR valve through giving vent to anger the room, the end of intaking of inlet tube sets up on the engine, and the play water end of inlet tube connects the inlet end side of establishing at the EGR cooler through inlet tube switching hydroecium, the outlet pipe connects the end side of giving vent to anger of establishing at the EGR cooler through outlet pipe switching hydroecium, the EGR cooler is gas-liquid separation structure, and EGR cooler, EGR valve, play hydroecium and inlet chamber constitute gas passage jointly, and EGR cooler, outlet pipe switching hydroecium, inlet tube and outlet pipe constitute liquid passage jointly, and the coolant liquid flows in liquid passage and advances cooling heat exchange for the high temperature waste gas that flows in the gas passage.
The cooling EGR assembly further comprises a first fixing support, an EGR temperature sensor mounting boss, a second fixing support, a mounting support and an air inlet flange; EGR temperature sensor installation boss sets up and is used for installing temperature sensor in the air outlet chamber outside, the air outlet chamber outside is provided with fixed bolster one and fixed bolster two, the outside of EGR cooler is provided with the installing support, and fixed bolster one, fixed bolster two and installing support cooperation work are used for with EGR assembly monolithic erection on the engine, the air inlet flange sets up and is used for being connected with engine exhaust manifold at the inlet end of air inlet chamber.
The water inlet end of the water inlet pipe is provided with an O-shaped ring structure boss, and the O-shaped ring structure boss is inserted into the engine and is fixed on the engine in a sealing mode through a water inlet pipe mounting plate arranged at the rear portion of the O-shaped ring structure boss.
The EGR valve is fixed on the air outlet chamber by penetrating through an EGR valve mounting hole arranged on the EGR valve by using a bolt structure.
The first fixing support and the second fixing support are integrally cast with the air outlet chamber.
The water outlet pipe switching water chamber and the water inlet pipe switching water chamber are welded on the EGR cooler for reducing the overall height of the cooler.
The utility model has the beneficial effects that: according to the cooling EGR assembly provided by the utility model, the temperature of the exhaust gas is reduced through the cooler, the amount of the exhaust gas and the EGR rate can be effectively increased, the low-temperature exhaust gas greatly contributes to reducing oil consumption and discharging when participating in combustion in the cylinder, the structure design is adopted, the structure of the water inlet pipe is optimized, water is directly taken through the cooler integrated water pipe, the risk of thermal injury caused by a rubber pipe is avoided, and meanwhile, the structure is more compact in a limited space.
Drawings
In the drawings:
FIG. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is a second schematic structural view of the present invention;
in the figure:
1. an EGR cooler; 2. the water outlet pipe is connected with the water chamber; 3. a first fixed support; 4. an EGR temperature sensor mounting boss; 5. an EGR valve; 6. a second fixed support; 7. an air outlet chamber; 8. the water inlet pipe is connected with the water chamber; 9. an air intake chamber; 10. mounting a bracket; 11. a boss with an O-shaped ring structure; 12. a water inlet pipe mounting plate; 13. a water inlet pipe; 14. an air inlet flange; 15. an EGR valve mounting hole; 16. and (5) discharging a water pipe.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic drawings that illustrate only the basic structure of the present invention and, therefore, only show the structures related to the present invention.
A cooled EGR assembly comprises an EGR cooler 1, a water outlet pipe switching water chamber 2, an EGR valve 5, an air outlet chamber 7, a water inlet pipe switching water chamber 8, an air inlet chamber 9, a water inlet pipe 13 and a water outlet pipe 16.
The inlet end of EGR cooler 1 is connected with the end of giving vent to anger of inlet chamber 9, the end of giving vent to anger of EGR cooler 1 links to each other with EGR valve 5 through giving vent to anger room 7, the end of intaking of inlet tube 13 sets up on the engine, and the play water end of inlet tube 13 connects the inlet end side of establishing at EGR cooler 1 through inlet tube switching hydroecium 8, outlet pipe 16 connects the end side of giving vent to anger of establishing at EGR cooler 1 through outlet pipe switching hydroecium 2, EGR cooler 1 is the gas-liquid separation structure, and EGR cooler 1, EGR valve 5, give vent to anger room 7 and inlet chamber 9 constitute the gas access jointly, and EGR cooler 1, outlet pipe switching hydroecium 2, inlet tube switching hydroecium 8, inlet tube 13 and outlet pipe 16 constitute the liquid access jointly, and the coolant liquid flows in the liquid access and carries out the cooling heat exchange for the high temperature waste gas that flows in the gas access.
The cooling EGR assembly further comprises a first fixing support 3, an EGR temperature sensor mounting boss 4, a second fixing support 6, a mounting support 10 and an air inlet flange 14; EGR temperature sensor installation boss 4 sets up and is used for installing temperature sensor in the air outlet chamber 7 outside, air outlet chamber 7 outside is provided with fixed bolster one 3 and two 6 of fixed bolster, the outside of EGR cooler 1 is provided with installing support 10, and fixed bolster one 3, two 6 of fixed bolster and installing support 10 cooperation work are used for with EGR assembly monolithic erection on the engine, air inlet flange 14 sets up and is used for being connected with engine exhaust manifold at the inlet end of air inlet chamber 9.
The water inlet end of the water inlet pipe 13 is provided with an O-shaped ring structure boss 11, the O-shaped ring structure boss 11 is inserted into the engine and is hermetically fixed on the engine through a water inlet pipe mounting plate 12 arranged at the rear part of the O-shaped ring structure boss 11.
The EGR valve 5 is fixed to the outlet chamber 7 through an EGR valve mounting hole 15 provided thereon by a bolt structure.
The first fixed support 3 and the second fixed support 6 are integrally cast with the gas outlet chamber 7, and the water outlet pipe switching water chamber 2 and the water inlet pipe switching water chamber 8 are welded on the EGR cooler 1 for reducing the overall height of the cooler.
This by cooling EGR assembly by EGR cooler 1, EGR valve 5, two parts constitute, EGR valve 5's gas circuit hole both sides are equipped with two EGR valve mounting holes 15, EGR valve 5 passes through two bolt fastening on giving vent to anger room 7, be equipped with EGR temperature sensor mounting boss 4 on giving vent to anger room 7, fixed bolster one 3 and fixed bolster two 6, be equipped with installing support 10 on the EGR cooler 1 body, inlet tube 13 and outlet pipe 16 link to each other with EGR cooler 1 through outlet pipe switching hydroecium 2 and inlet tube switching hydroecium 8 respectively, inlet tube 13 is equipped with O type circle structure boss 11, through inlet tube mounting panel 12 fixed seal, inlet chamber 9 is connected with EGR cooler 1, connect air inlet flange 14 simultaneously.
The working principle is as follows:
waste gas gets the trachea through the exhaust manifold and gets the middle part of air inlet flange 14 and get into EGR cooler 1 in through air inlet chamber 9, EGR cooler 1 is the gas-liquid separation structure, and inside coolant liquid got into EGR cooler 1 through inlet tube 13, discharged through outlet pipe 16 after participating in the heat transfer, and the temperature sensor who installs on EGR temperature sensor mounting boss 4 monitors the temperature of waste gas, and the recirculation is realized through opening and closing of EGR valve 5 to the waste gas after the cooling.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A cooled EGR assembly, characterized by: the EGR cooler comprises an EGR cooler (1), a water outlet pipe switching water chamber (2), an EGR valve (5), an air outlet chamber (7), a water inlet pipe switching water chamber (8), an air inlet chamber (9), a water inlet pipe (13) and a water outlet pipe (16); the inlet end of EGR cooler (1) is connected with the end of giving vent to anger of inlet chamber (9), the end of giving vent to anger of EGR cooler (1) links to each other with EGR valve (5) through giving vent to anger room (7), the end of intaking of inlet tube (13) sets up on the engine, and the play water end of inlet tube (13) connects through inlet tube switching water room (8) and establishes the side of the inlet end of EGR cooler (1), outlet pipe (16) connect through outlet pipe switching water room (2) and establish the side of giving vent to anger of EGR cooler (1), EGR cooler (1) is gas-liquid separation structure, and EGR cooler (1), EGR valve (5), give vent to anger room (7) and inlet chamber (9) constitute gas access jointly, and EGR cooler (1), outlet pipe switching water room (2), inlet tube switching water room (8), inlet tube (13) and outlet pipe (16) constitute liquid access jointly, the cooling liquid flows in the liquid passage to perform cooling heat exchange on the high-temperature waste gas flowing in the gas passage.
2. A cooled EGR assembly as set forth in claim 1 wherein: the cooling EGR assembly further comprises a first fixing support (3), an EGR temperature sensor mounting boss (4), a second fixing support (6), a mounting support (10) and an air inlet flange (14); EGR temperature sensor installation boss (4) set up and are used for installing temperature sensor in going out air chamber (7) outside, go out air chamber (7) outside and be provided with fixed bolster (3) and fixed bolster two (6), the outside of EGR cooler (1) is provided with installing support (10), and fixed bolster one (3), fixed bolster two (6) and installing support (10) cooperation work are used for with EGR assembly monolithic erection on the engine, air inlet flange (14) set up the inlet end in air inlet chamber (9) be used for being connected with engine exhaust manifold.
3. A cooled EGR assembly as set forth in claim 2 wherein: the water inlet end of the water inlet pipe (13) is provided with an O-shaped ring structure boss (11), the O-shaped ring structure boss (11) is inserted into the engine and is hermetically fixed on the engine through a water inlet pipe mounting plate (12) arranged at the rear part of the O-shaped ring structure boss (11).
4. A cooled EGR assembly as set forth in claim 3 wherein: the EGR valve (5) is fixed on the air outlet chamber (7) by a bolt structure through an EGR valve mounting hole (15) arranged on the EGR valve.
5. A cooled EGR assembly, according to claim 4, wherein: the first fixing support (3), the second fixing support (6) and the air outlet chamber (7) are integrally cast.
6. A cooled EGR assembly, according to claim 5, wherein: and the water outlet pipe switching water chamber (2) and the water inlet pipe switching water chamber (8) are welded on the EGR cooler (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121901437.4U CN215761974U (en) | 2021-08-14 | 2021-08-14 | Cooling EGR assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121901437.4U CN215761974U (en) | 2021-08-14 | 2021-08-14 | Cooling EGR assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215761974U true CN215761974U (en) | 2022-02-08 |
Family
ID=80074611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121901437.4U Active CN215761974U (en) | 2021-08-14 | 2021-08-14 | Cooling EGR assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215761974U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045781A (en) * | 2022-06-10 | 2022-09-13 | 哈尔滨东安汽车动力股份有限公司 | Low-pressure cooling EGR system capable of achieving high EGR rate |
-
2021
- 2021-08-14 CN CN202121901437.4U patent/CN215761974U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045781A (en) * | 2022-06-10 | 2022-09-13 | 哈尔滨东安汽车动力股份有限公司 | Low-pressure cooling EGR system capable of achieving high EGR rate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU756183B2 (en) | Engine air intake manifold having built-in intercooler | |
| CN106555715A (en) | Automotive gasoline engine cools down egr system | |
| CN215761974U (en) | Cooling EGR assembly | |
| CN100520043C (en) | Exhaust gas recirculation device of engine | |
| CN206267982U (en) | Automotive gasoline engine cools down egr system | |
| CN209539472U (en) | A kind of exhaust gas recirculation device with by-passing valve | |
| CN210264958U (en) | Diesel engine EGR system | |
| CN110848048A (en) | EGR cooler | |
| CN115045781A (en) | Low-pressure cooling EGR system capable of achieving high EGR rate | |
| CN216077362U (en) | Air inlet arrangement structure of automobile engine | |
| CN201258801Y (en) | EGR cooling vessel with double-row tube bundles for heavy duty diesel engine | |
| CN211852020U (en) | EGR module that cold junction was arranged | |
| CN211008900U (en) | EGR cooler | |
| CN210919275U (en) | EGR cooler and engine with EGR system | |
| CN211500827U (en) | EGR valve and cooler assembly | |
| CN219452254U (en) | EGR valve arrangement structure for both upright and inclined engine type gasoline engine | |
| CN213627824U (en) | But integrated exhaust gas recirculation's intake pipe structure | |
| CN212583844U (en) | Exhaust gas recirculation device with two-stage cooler and vehicle | |
| CN218862760U (en) | EGR cooling device, hybrid engine and vehicle | |
| CN204327324U (en) | A kind of cooler for recycled exhaust gas | |
| CN219412727U (en) | Pipe-belt type intercooler | |
| CN220285879U (en) | Engine EGR cooling system | |
| CN212318184U (en) | Flat tube type EGR cooler with bypass | |
| CN114909211B (en) | High-efficient pressure boost direct injection engine always arranges | |
| CN214221364U (en) | Novel EGR system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |