CN201461147U - Exhaust gas recirculation system for engine - Google Patents
Exhaust gas recirculation system for engine Download PDFInfo
- Publication number
- CN201461147U CN201461147U CN2009201277919U CN200920127791U CN201461147U CN 201461147 U CN201461147 U CN 201461147U CN 2009201277919 U CN2009201277919 U CN 2009201277919U CN 200920127791 U CN200920127791 U CN 200920127791U CN 201461147 U CN201461147 U CN 201461147U
- Authority
- CN
- China
- Prior art keywords
- exhaust gas
- pipe
- exhaust
- gas recirculation
- valve seat
- 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
Links
Images
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)
Abstract
The utility model provides a novel exhaust gas recirculation system, which comprises an exhaust manifold, an exhaust gas recirculation pipe, a valve seat, an exhaust gas recirculation valve, and an intake manifold, wherein the exhaust gas recirculation pipe comprises an exhaust gas pipe and a cooling cavity; the exhaust gas pipe passes through the cooling cavity; one end of the exhaust gas pipe is connected with the exhaust manifold through an air pipe, while the other end is directly assembled on the exhaust gas recirculation valve seat through a bolt, and is sealed through a gasket; two end faces of the cooling cavity are welded with the outer surface of the exhaust gas pipe for sealing; and the cooling cavity is provided with a cooling liquid inlet pipe and a cooling liquid outlet pipe. The system provides an independent cooling structure for EGR exhaust gas; part structures of an EGR system of the engine are effectively decreased; the length of the cylinder cover is shortened; and the arrangement of the engine is more reasonable. Meanwhile, the thermal load of the cylinder cover is effectively reduced, and the reliability and the durability of the engine are improved.
Description
Technical field
The utility model belongs to technical field of engines, is specifically related to a kind of exhaust gas recirculation (EGR) system.
Background technique
The exhaust gas recirculation of motor (EGR) system has diluted air inlet and has reduced combustion temperature by introducing part waste gas in gas exhaust manifold to intake manifold, thereby oil consumption is reduced, and discharging is cleaning more.Air-breathing fully for guaranteeing motor simultaneously, need cool off waste gas.
Usually engine exhaust recirculation (EGR) system is as follows: from gas exhaust manifold, be connected on the cylinder cap assembly through a tracheae, on cylinder cap, open an air flue, this air flue is near cooling water channel, gas obtains cooling during by the cylinder cap assembly, exhaust gas recirculation (EGR) valve seat is installed on cylinder cap, be connected by bolt between cylinder cap and the valve seat, the two adopts the metallic gasket sealing, exhaust gas recirculation (EGR) valve with bolts assemblies to valve seat, waste gas to exhaust gas recirculation (EGR) valve, flows back to the valve seat opposite side from valve seat one effluent again, is communicated with by another root tracheae between valve seat and the intake manifold.This structure is owing to need to open separately an air flue on cylinder cap, cause cylinder cap length elongated, high-temperature gas in the air flue may cause cylinder cap localized heat load to increase, local cooling liquid may be vaporized in the cylinder cap water jacket, increase the possibility of cylinder cap thermal distortion, thereby reduced the durability and the reliability of motor.
Summary of the invention
At the deficiencies in the prior art, the utility model provides the gas recirculation system of a kind of band exhaust gas recirculation (EGR) pipe.
The technical solution of the utility model is as follows:
A kind of engine exhaust-gas recirculating system comprises gas exhaust manifold, is installed in exhaust gas recirculation valve seat, exhaust gas recirculation valve, intake manifold on the cylinder cap, and exhaust gas recirculation valve, is connected with a tracheae between valve seat and the intake manifold to valve seat with bolts assemblies; On the connecting path between the described gas exhaust manifold exhaust gas recirculation valve seat, also be connected with an exhaust gas reclrculation pipe; Described exhaust gas reclrculation pipe comprises flue gas leading and cooling cavity, and described flue gas leading passes the cooling cavity, and flue gas leading one end is connected with gas exhaust manifold by tracheae, and the other end directly is assemblied in the exhaust gas recirculation valve seat with bolt, and seals with sealing gasket; The both ends of the surface of described cooling cavity and flue gas leading outer surface welded seal, the cooling cavity is provided with the cooling liquid inlet pipe and cooling liquid goes out pipe.
Like this, exhaust gas reclrculation pipe by peripheral hardware, waste gas is through gas exhaust manifold, exhaust gas recirculation (EGR) pipe, valve seat, exhaust gas recirculation (EGR) valve, enter in the process of intake manifold, when the exhaust gas recirculation of flowing through (EGR) is managed, waste gas just can carry out heat exchange with the cooling liquid in the cooling cavity, and exhaust steam passage needn't be set on cylinder cap, just can reach the purpose of cooled exhaust air.
As seen, model utility is owing to designed a kind of independently exhaust gas recirculation (EGR) pipe with the cooling cavity, and exhaust steam passage needn't be set on cylinder cap, shortened motor length, reduced the excessive influence of cylinder cap localized heat load, improved the reliability and the durability of motor the cylinder cap thermal distortion.
Description of drawings
Fig. 1 is the structured flowchart of this novel gas recirculation system;
Fig. 2 is the structural representation of exhaust gas reclrculation pipe.
Embodiment
See figures.1.and.2, this gas recirculation system comprises gas exhaust manifold 1, exhaust gas reclrculation pipe 2, is installed in exhaust gas recirculation valve seat 3, exhaust gas recirculation valve 4, intake manifold 5 on the cylinder cap, be connected with a tracheae between gas exhaust manifold 1 and the exhaust gas reclrculation pipe 2, exhaust gas reclrculation pipe 2 usefulness bolts directly are assemblied on the valve seat, exhaust gas recirculation valve 4 usefulness bolts assemblies are connected by another root tracheae between valve seat and the intake manifold 5 to valve seat.Exhaust gas reclrculation pipe 2 comprises flue gas leading 21 and cooling cavity 22, flue gas leading 21 passes cooling cavity 22, the both ends of the surface of cooling cavity 22 and the welding of flue gas leading outer surface, bottom righthand side at cooling cavity 22 is provided with cooling liquid inlet pipe 23, left upper end is provided with cooling liquid and goes out pipe 24, cooling liquid enters the cooling cavity from a pipe, flow out from another pipe, waste gas is through gas exhaust manifold 1, exhaust gas reclrculation pipe 2, valve seat 3, exhaust gas recirculation valve 4, enter in the process of intake manifold, when flowing through exhaust gas reclrculation pipe 2, the waste gas in the flue gas leading 21 carries out heat exchange with the cooling liquid in the cooling cavity, reaches the purpose of cooled exhaust air.
Claims (1)
1. engine exhaust-gas recirculating system, comprise gas exhaust manifold (1), be installed in exhaust gas recirculation valve seat (3), exhaust gas recirculation valve (4), intake manifold (5) on the cylinder cap, exhaust gas recirculation valve (4), is connected with a tracheae between valve seat and the intake manifold (5) to valve seat with bolts assemblies; It is characterized in that: on the connecting path between described gas exhaust manifold (1) and the exhaust gas recirculation valve seat (3), also be connected with an exhaust gas reclrculation pipe (2); Described exhaust gas reclrculation pipe (2) comprises flue gas leading (21) and cooling cavity (22), described flue gas leading (21) passes cooling cavity (22), flue gas leading (21) one ends are connected with gas exhaust manifold (1) by tracheae, the other end directly is assemblied in exhaust gas recirculation valve seat (3) with bolt, and seals with sealing gasket; The both ends of the surface of described cooling cavity (22) and flue gas leading (21) outer surface welded seal, cooling cavity (22) are provided with cooling liquid inlet pipe (23) and cooling liquid goes out pipe (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201277919U CN201461147U (en) | 2009-06-26 | 2009-06-26 | Exhaust gas recirculation system for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201277919U CN201461147U (en) | 2009-06-26 | 2009-06-26 | Exhaust gas recirculation system for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461147U true CN201461147U (en) | 2010-05-12 |
Family
ID=42388501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201277919U Expired - Fee Related CN201461147U (en) | 2009-06-26 | 2009-06-26 | Exhaust gas recirculation system for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461147U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777236A (en) * | 2012-08-24 | 2012-11-14 | 重庆海特汽车排气系统有限公司 | Cooling device for vehicle gas discharge pipeline |
| CN104929733A (en) * | 2015-06-22 | 2015-09-23 | 陈伟强 | Cooling exhaust pipe |
| CN104989506A (en) * | 2015-07-09 | 2015-10-21 | 陈卡丹 | Vibration reduction cooling exhaust pipe |
-
2009
- 2009-06-26 CN CN2009201277919U patent/CN201461147U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777236A (en) * | 2012-08-24 | 2012-11-14 | 重庆海特汽车排气系统有限公司 | Cooling device for vehicle gas discharge pipeline |
| CN104929733A (en) * | 2015-06-22 | 2015-09-23 | 陈伟强 | Cooling exhaust pipe |
| CN104989506A (en) * | 2015-07-09 | 2015-10-21 | 陈卡丹 | Vibration reduction cooling exhaust pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2777444C (en) | Fluid-cooled exhaust manifold | |
| PL2288796T3 (en) | Device for producing electrical energy from exhaust gas heat | |
| US20110131963A1 (en) | Exhaust manifold system and collar coolant jacket | |
| CN201461147U (en) | Exhaust gas recirculation system for engine | |
| CN102400764A (en) | Engine cooling circulation device | |
| JP2008285997A (en) | Exhaust gas treatment device of engine | |
| CN201273229Y (en) | Double-channel butterfly valve structure | |
| CN108317018B (en) | Cylinder head cooling device and preparation method thereof and cylinder cover cooling system | |
| CN103485866A (en) | Turbocharged engine | |
| CN209781056U (en) | High-efficient reliable sealed natural gas cylinder head structure of cooling | |
| CN114320676B (en) | Engine EGR (exhaust gas Recirculation) cooling control system, method and vehicle | |
| CN201176888Y (en) | Marine diesel exhausting pipe and six cylinder marine diesel | |
| CN202325815U (en) | Cooling circulating device of engine | |
| CN215761974U (en) | Cooling EGR assembly | |
| CN115045781A (en) | Low-pressure cooling EGR system capable of achieving high EGR rate | |
| CN206785520U (en) | The inlet manifold of integrated charge air cooler | |
| JP5916366B2 (en) | Exhaust gas recirculation device | |
| CN204627799U (en) | EGR cooling structure | |
| CN204941729U (en) | A kind of EGR valve seat with cooling water channel | |
| CN201258801Y (en) | EGR cooling vessel with double-row tube bundles for heavy duty diesel engine | |
| CN101349222A (en) | Double-channel butterfly valve structure | |
| CN210264958U (en) | Diesel engine EGR system | |
| CN203570419U (en) | Intercooler with high leakproofness | |
| CN203962127U (en) | A kind of adiabatic gas exhaust manifold and automobile | |
| JP2013245563A (en) | Exhaust recirculation system for internal combustion engine |
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 |
Granted publication date: 20100512 Termination date: 20140626 |
|
| EXPY | Termination of patent right or utility model |