CN202325910U - Exhaust gas recirculation cooler - Google Patents
Exhaust gas recirculation cooler Download PDFInfo
- Publication number
- CN202325910U CN202325910U CN2011204575847U CN201120457584U CN202325910U CN 202325910 U CN202325910 U CN 202325910U CN 2011204575847 U CN2011204575847 U CN 2011204575847U CN 201120457584 U CN201120457584 U CN 201120457584U CN 202325910 U CN202325910 U CN 202325910U
- Authority
- CN
- China
- Prior art keywords
- outlet pipe
- pipe
- cooler
- exhaust gas
- engine
- 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.)
- Expired - Fee Related
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- 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
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- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model discloses an exhaust gas recirculation (EGR) cooler. The exhaust gas recirculation cooler is structurally characterized in that a gas inlet pipe and a gas outlet pipe are respectively connected at two ends of the gas side of the EGR cooler, the gas inlet pipe is connected with an engine exhaust pipe, the gas outlet pipe is connected with an electric control EGR valve, the electric control EGR valve is connected with an engine gas inlet channel, a water inlet pipe and a water outlet pipe are respectively connected at the water side of the EGR cooler, a fixing bracket is mounted at the connecting section between the EGR cooler and the gas outlet pipe, the gas outlet pipe is composed of two bent heads and three straight pipes, the straight pipe in the middle is provided with a flexible pipe section and a fixing clamp, another flexible pipe section is arranged in the middle of the gas inlet pipe, and a flange connector is welded at the inlet end of the gas inlet pipe. The EGR cooler is simple in structure; the position of the EGR cooler, which is fixed with the peripheral space of an engine, is reasonable in design, so that the space design requirement can be met; and a primary product can be easily upgraded and improved, and the service life of the engine is effectively prolonged.
Description
Technical field:
The utility model belongs to internal combustion engine component, is specifically related to a kind of exhaust gas recirculation cooling device.
Background technique:
Along with going from bad to worse of grobal environment, impel countries in the world man also strict day by day to the emission request of motor.Well-known engine exhaust recirculation (the being called for short EGR) technology that adopts can effectively reduce the noxious emission of NOx, so the improvement of cooling system for recycled exhaust gas technology receives the concern of each manufacturer.The problem of cooling system for recycled exhaust gas existence at present is that this cooling system not only will improve density of the induced air through reducing intake temperature, under the prerequisite that satisfies the engine emission requirement, also will satisfy the requirement in spaces such as system's assembling, size cooperation.But at present diesel engine cylinder block and the outside various fixtures that are connected of cylinder cap comprise the pipeline of various connections, and layout such as wire harness is increasingly sophisticated, and this will cause difficulty to the assembling of diesel engine and automobile chassis etc.Therefore in the design of cooling system for recycled exhaust gas, need to consider the optimization to outside accessory setting, the utility model proposes a kind of on the basis of satisfying state III emission standard, and the while taking into account system is changed less, satisfies the exhaust gas recirculation cooling device that bulk requires.
Summary of the invention:
The purpose of the utility model provides the rational cooling system for recycled exhaust gas device of a kind of compact assembling structure.
The technological scheme of the utility model is that exhaust gas recirculation cooling device comprises suction tude, cooler for recycled exhaust gas, intake pipe, steam outlet pipe, electric control EGR valve, fixed support, outlet pipe and flange etc.The two ends of cooler for recycled exhaust gas gas side are connected to suction tude and steam outlet pipe respectively, and suction tude is connected with engine exhaust pipe, and steam outlet pipe is connected with the electric control EGR valve.The electric control EGR valve is connected with engine inlets.The water side of cooler for recycled exhaust gas is connected to intake pipe and outlet pipe respectively, and the linkage section of cooler for recycled exhaust gas and steam outlet pipe is equipped with fixed support.Assembling for ease, air inlet, steam outlet pipe pipeline are equipped with flexible tube section.
The working principle of exhaust gas recirculation cooling device is, the gas side that a part of waste gas of being drawn by engine exhaust pipe gets into cooler, and cooler is a heat exchanger, and the water side is connected with condensed water, and the waste gas of high heat gets into motor once more after the cooler cooling.According to motor ambient temperature and running operating mode, the electric control EGR valve can be controlled the exhausted air quantity that gets into motor accurately.Reduce the temperature that gets into intake duct waste gas through cooler for recycled exhaust gas and improve density of the induced air, accurately control air inflow, thereby reach the purpose that lowers the NOx noxious emission through the electric control EGR valve.In order to satisfy the requirement of motor peripheral space size, be designed to Active Interface in the middle of each pipeline of the suction tude of the utility model, steam outlet pipe, be one section flexible tube section in the middle of each pipeline of suction tude and steam outlet pipe simultaneously.Can make the quite flexible connection of each pipeline section and corresponding each annex of motor like this, effectively reduce the external engine space to satisfy the car load arrangement requirement.
The characteristics and the beneficial effect of the utility model are: structural design is comparatively simple, and is reasonable with the Position Design that the motor peripheral space is fixing, can satisfy the spatial design requirement.And on the motor basis that meets state III emission standard originally, increase cooling system for recycled exhaust gas and electric control EGR valve, and make it reach Europe IV emission standard, can effectively reduce the NOx of motor.The utility model makes the original product upgrading more or less freely, effectively prolongs the service life of motor.
Description of drawings:
Fig. 1 is the three-dimensional plan view of the utility model.
Fig. 2 is the utility model top perspective view.
Fig. 3 is the utility model three-dimensional side view.
Embodiment
Be further described below in conjunction with accompanying drawing and through the structure of specific embodiment the utility model.Exhaust gas recirculation cooling device, its structure is: the two ends of cooler for recycled exhaust gas 2 gas sides are connected to suction tude 1 and steam outlet pipe 4 respectively, and suction tude 1 entrance point is connected with engine exhaust pipe, and the outlet side of steam outlet pipe 4 is connected with electric control EGR valve 5.The electric control EGR valve is connected with engine inlets, and the water side of cooler for recycled exhaust gas 2 is connected to intake pipe 3 and outlet pipe 7 respectively.The linkage section of cooler for recycled exhaust gas and steam outlet pipe is equipped with fixed support 6.Steam outlet pipe is made up of three straight lengths of two elbows, and middle straight tube is provided with flexible tube section 4a and fixed card 8; Also be provided with flexible tube section 1a in the middle of the suction tude 1, the entrance point of suction tude is welded with flange-interface 9.
The part of cooling water is introduced the intake pipe of cooler for recycled exhaust gas in the engine motor oil cooler, and the outlet pipe of cooler for recycled exhaust gas returns and is connected on the car load warm wind water pipe.Fixed support and cylinder cap between cooler for recycled exhaust gas and the steam outlet pipe are fixed, so the cooling system device is highly stable.The utility model has been assemblied in the CYQD80-CE4 motor at present, and this cooling system has passed through " state IV " product test of national inspection centers.
Claims (2)
1. exhaust gas recirculation cooling device; Comprise suction tude, cooler for recycled exhaust gas, intake pipe, steam outlet pipe, electric control EGR valve, fixed support, outlet pipe, fixed card and flange-interface; The two ends that it is characterized in that cooler for recycled exhaust gas (2) gas side are connected to suction tude (1) and steam outlet pipe (4) respectively; Suction tude (1) entrance point is connected with engine exhaust pipe, and the outlet side of steam outlet pipe (4) is connected with electric control EGR valve (5), and the electric control EGR valve is connected with engine inlets; The water side of cooler for recycled exhaust gas (2) is connected to intake pipe (3) and outlet pipe (7) respectively, and cooler for recycled exhaust gas (2) is equipped with fixed support (6) with the linkage section of steam outlet pipe (4).
2. according to the described exhaust gas recirculation cooling device of claim 1, it is characterized in that said steam outlet pipe (4) is made up of three straight lengths of two elbows, middle straight tube is provided with flexible tube section (4a) and fixed card (8); Also be provided with flexible tube section (1a) in the middle of the said suction tude (1), the entrance point of suction tude is welded with flange-interface (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204575847U CN202325910U (en) | 2011-11-17 | 2011-11-17 | Exhaust gas recirculation cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204575847U CN202325910U (en) | 2011-11-17 | 2011-11-17 | Exhaust gas recirculation cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202325910U true CN202325910U (en) | 2012-07-11 |
Family
ID=46437893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204575847U Expired - Fee Related CN202325910U (en) | 2011-11-17 | 2011-11-17 | Exhaust gas recirculation cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202325910U (en) |
-
2011
- 2011-11-17 CN CN2011204575847U patent/CN202325910U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20121117 |