CN203308610U - Power-driven EGR (exhaust gas recirculation) valve decarbonizing mechanism - Google Patents
Power-driven EGR (exhaust gas recirculation) valve decarbonizing mechanism Download PDFInfo
- Publication number
- CN203308610U CN203308610U CN201320330827XU CN201320330827U CN203308610U CN 203308610 U CN203308610 U CN 203308610U CN 201320330827X U CN201320330827X U CN 201320330827XU CN 201320330827 U CN201320330827 U CN 201320330827U CN 203308610 U CN203308610 U CN 203308610U
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- Prior art keywords
- guide sleeve
- valve
- power
- egr valve
- decarbonizing
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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 a power-driven EGR (exhaust gas recirculation) valve decarbonizing mechanism. The mechanism comprises an annular elastic steel wire gauze arranged at the end close to an exhaust gas cylinder, of a guide sleeve of a power-driven EGR valve, wherein the guide sleeve is a ladder axle sleeve, the elastic steel wire gauze is pressed at a first ladder stage of the guide sleeve through a baffle, and the valve rod of the power-driven EGR valve is assembled with the inner wall of the elastic steel wire gauze and the inner wall of a second ladder stage of the guide sleeve. According to the power-driven EGR valve decarbonizing mechanism, carbon black particles can be effectively prevented from entering between the guide sleeve and the valve rod, the locking fault of the valve rod and the guide sleeve caused by carbon deposition in the waste gas is avoided, and the service life of the power-driven EGR valve is prolonged.
Description
Technical field
The utility model relates to engine exhaust emission control gear technical field, particularly a kind of electric EGR valve.
Background technique
Engine exhaust-gas recirculating system (abbreviation egr system) is for reducing the discharge capacity of nitrogen oxides in waste gas, its function mode refers to while under engine load, turning round, the EGR valve is opened, a small amount of waste gas that motor is discharged is transmitted back to intake manifold, and together with fresh inflammable mixture, enters cylinder and again burn.Its principle is to utilize a large amount of CO that contain in waste gas
2, and CO
2Can not burn and but can absorb a large amount of heat, the combustion temperature of mixed gas in cylinder is reduced, thereby reduce the growing amount of NOx, reduce exhaust pollution.
EGR valve in egr system is mainly used in regulating the flow of controlling EGR gas, and in the waste gas of diesel engine, contains a large amount of soots; Particularly in order to reach higher emission request, while before the EGR valve, using cooler for recycled exhaust gas, the carbon distribution problem is more serious.Carbon distribution in waste gas can enter in valve rod and guide sleeve, finally causes valve rod and guide sleeve locking, the EGR defective valve.
Summary of the invention
The technical problem that the utility model solves is to provide a kind of electric EGR valve that can automatic carbon removing, to improve the working life of EGR valve.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
Electric EGR valve de-carbon mechanism comprises and is arranged on the cyclic spring steel wire of electric EGR valve guide sleeve near waste gas cylinder one end that described guide sleeve is the ladder axle sleeve, and the first ladder section that baffle plate is pressed on guide sleeve is crossed by elastic wire Netcom; The valve rod of described electric EGR valve is equipped with mutually with the inwall of Elastic Steel silk screen and the inwall of guide sleeve second-order bench.
Owing to having adopted above technological scheme, the obtained technological progress of the utility model is as follows.
Elastic Steel silk screen of the present utility model can will be discarded generation in the movement process of valve rod carbon soot particles stops, prevent that effectively carbon soot particles from entering between guide sleeve and valve rod, avoid causing due to the carbon distribution in waste gas the generation of valve rod and guide sleeve locking fault, extended the working life of electric EGR valve.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged view of de-carbon of the present utility model mechanism.
Wherein: 1, valve seat, 2, driving mechanism, 3, sensor, 4, speed reducer, 5, motor, 6, guide sleeve, 7, steel wire, 8, baffle plate, 9, valve rod, 10, valve.
Embodiment
Below in conjunction with specific embodiments and the drawings, the utility model is further elaborated.
Electric EGR valve is by motor 5 output torques, underspeeds and improves moment of torsion by speed reducer 4; After driving mechanism 2 was converted into straight line motion by rotatablely moving of speed reducer 4 outputs, band ovable valve stem 9 and valve 10 actions, to realize the open and close of electric EGR valve.Electric EGR valve reflects the current aperture of valve by the sensor 3 that is arranged on valve seat 1 top.The structure of electric EGR valve as shown in Figure 1.
The structure of de-carbon mechanism as shown in Figure 2, comprises and is arranged on the cyclic spring steel wire 7 of electric EGR valve guide sleeve 6 near waste gas cylinder one end.Guide sleeve 6 in the utility model is the ladder axle sleeve, and Elastic Steel silk screen 7 is pressed on the first ladder section of guide sleeve 6 by baffle plate 8.The valve rod 9 of electric EGR valve is equipped mutually with the inwall of the inwall of Elastic Steel silk screen and guide sleeve second-order bench.
Then de-carbon mechanism, in installation process, should be pressed into guide sleeve 6 valve seat 1 riveted joint at first according to 1 stepped guide sleeve 6 of hole positioning accurate processing of valve seat, to guarantee the coaxality in guide sleeve 6 and 1 hole of valve seat, has also just guaranteed the sealing of valve.Steel wire screen base hole place at guide sleeve 6 installs compressing cyclic spring steel wire 7, then by baffle plate 8 and guide sleeve 6 riveted joints, Elastic Steel silk screen 7 is installed firmly.
Electric EGR valve in the course of the work; after on valve rod 9, producing carbon distribution; because valve rod 9 can move all the time; therefore carbon soot particles can be scraped by Elastic Steel silk screen 7 and by guide sleeve the first ladder stop; prevented that effectively carbon soot particles from entering between valve rod and guide sleeve; avoid the generation of valve rod 9 with guide sleeve 6 locking phenomenons, extended the working life of electric EGR valve.
Claims (1)
1. electric EGR valve de-carbon mechanism, it is characterized in that: comprise and be arranged on the cyclic spring steel wire (7) of electric EGR valve guide sleeve (6) near waste gas cylinder one end, described guide sleeve (6) is the ladder axle sleeve, and Elastic Steel silk screen (7) is pressed on the first ladder section of guide sleeve (6) by baffle plate (8); The valve rod of described electric EGR valve (9) is equipped with mutually with the inwall of Elastic Steel silk screen and the inwall of guide sleeve second-order bench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320330827XU CN203308610U (en) | 2013-06-08 | 2013-06-08 | Power-driven EGR (exhaust gas recirculation) valve decarbonizing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320330827XU CN203308610U (en) | 2013-06-08 | 2013-06-08 | Power-driven EGR (exhaust gas recirculation) valve decarbonizing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203308610U true CN203308610U (en) | 2013-11-27 |
Family
ID=49614824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320330827XU Expired - Lifetime CN203308610U (en) | 2013-06-08 | 2013-06-08 | Power-driven EGR (exhaust gas recirculation) valve decarbonizing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203308610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277217A (en) * | 2013-06-08 | 2013-09-04 | 无锡隆盛科技股份有限公司 | Carbon removing mechanism of electric exhaust gas recirculation (EGR) valve |
-
2013
- 2013-06-08 CN CN201320330827XU patent/CN203308610U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277217A (en) * | 2013-06-08 | 2013-09-04 | 无锡隆盛科技股份有限公司 | Carbon removing mechanism of electric exhaust gas recirculation (EGR) valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |
|
| CX01 | Expiry of patent term |