CN203756373U - Stepping motor type exhaust gas recirculation valve for automobile - Google Patents
Stepping motor type exhaust gas recirculation valve for automobile Download PDFInfo
- Publication number
- CN203756373U CN203756373U CN201420156924.6U CN201420156924U CN203756373U CN 203756373 U CN203756373 U CN 203756373U CN 201420156924 U CN201420156924 U CN 201420156924U CN 203756373 U CN203756373 U CN 203756373U
- Authority
- CN
- China
- Prior art keywords
- exhaust gas
- stepping motor
- gas recirculation
- automobile
- valve
- 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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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
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- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model discloses a stepping motor type exhaust gas recirculation valve for an automobile. The stepping motor type exhaust gas recirculation valve for the automobile mainly comprises a valve body connected with an exhaust gas recirculation pipe of an internal combustion engine, a valve rod mounted in the center of the valve body, and a power unit which is used for driving the valve rod to move. The stepping motor type exhaust gas recirculation valve for the automobile is characterized in that the power unit is a stepping motor, the rotor end of the stepping motor is connected with one end of the valve rod, the stepping motor is entirely packaged with a cylindrical PPS (Poly Phenylene Sulfide) plastic housing, the radius of the upper segment of the cylindrical housing is less than that of the lower segment of the cylindrical housing, the lower end of the PPS plastic housing extends to form an inner boss and an outer boss, and the height of the inner boss is larger than that of the outer boss. The stepping motor type exhaust gas recirculation valve for the automobile has stable performance and high productivity.
Description
Technical field
The utility model relates to the improvement invention of exhaust gas recirculation valve for a kind of automobile, relates in particular to the improvement invention of step motor type exhaust gas recirculation valve for a kind of automobile.
Background technique
Automobile exhaust gas recirculation valve, utilize negative pressure of vacuum working principle, be mainly used in automobile engine tail gas releasing system, its most critical effect energy-conserving and environment-protective, to solve at present the optimal product of exhaust emissions, it can reduce nitrogen oxide and the hydrocarbon that engine high-temperature generates in vehicle traveling process, thereby exhaust emissions reaches standard.
In prior art, motor encapsulation adopts split-type structural, and Assembly of the parts is complicated, and manufacturing efficiency is low, the bad control of riveting pressure after assembling, and scrappage is high.
Model utility content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of stable performance is provided, the automobile that productivity is high step motor type exhaust gas recirculation valve.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme to realize: this kind of automobile step motor type exhaust gas recirculation valve, mainly include the valve body being connected with engine exhaust gas recirculating line, be arranged on the valve rod at valve body center and the power plant that move with ovable valve stem, it is characterized in that: described power plant are stepper motor, rotor one end of described stepper motor is connected with valve rod one end, described stepper motor is by PPS plastic casing overall package, described PPS plastic casing is cylindrical shell, and the epimere radius of cylindrical shell is less than hypomere radius, described PPS plastic casing lower end extends to form inner convex platform and outer lug boss, and the height of inner convex platform is higher than the height of outer lug boss.
The beneficial effects of the utility model are the automobile step motor type exhaust gas recirculation valve after improving, the whole pps plastic capsulation of stepper motor, and its stable performance, and stepper motor permeability is high, controls egr aperture stable.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Embodiment
Accompanying drawing has represented structure of the present utility model, further illustrates by reference to the accompanying drawings its details below again.This automobile step motor type exhaust gas recirculation valve, mainly include the valve body being connected with engine exhaust gas recirculating line, be arranged on the valve rod at valve body center and the power plant that move with ovable valve stem, described power plant are stepper motor 1, rotor 3 one end of described stepper motor 1 are connected with valve rod 4 one end, described stepper motor 1 is by PPS plastic casing 2 overall package, described PPS plastic casing 2 is cylindrical shell, and the epimere radius of cylindrical shell is less than hypomere radius, described PPS plastic casing 2 lower ends extend to form inner convex platform 5 and outer lug boss 6, and the height of inner convex platform 5 is higher than the height of outer lug boss 6.Inside and outside boss is used for installing connection; PPS plastic casing is cylindrical shell, and the epimere radius of cylindrical shell is less than the setting of hypomere radius and the external form of stepper motor matches, and saves material, and minimizing takes up room.
New technology structure is the whole PPS plastic capsulation of stepper motor, its stable performance, stepper motor permeability is high, controls EGR aperture stable, in precision high 3%, plastics adopt the manufacture of PPS engineering plastics to form, and its plastics have sufficient temp and intensity, and temperature can reach 200-280 ℃ without distortion and softening, should not break, new technology after improving, stable performance, productivity is high.
Claims (1)
1. an automobile step motor type exhaust gas recirculation valve, mainly include the valve body being connected with engine exhaust gas recirculating line, be arranged on the valve rod at valve body center and the power plant that move with ovable valve stem, it is characterized in that: described power plant are stepper motor, rotor one end of described stepper motor is connected with valve rod one end, described stepper motor is by PPS plastic casing overall package, described PPS plastic casing is cylindrical shell, and the epimere radius of cylindrical shell is less than hypomere radius, described PPS plastic casing lower end extends to form inner convex platform and outer lug boss, and the height of inner convex platform is higher than the height of outer lug boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420156924.6U CN203756373U (en) | 2014-04-02 | 2014-04-02 | Stepping motor type exhaust gas recirculation valve for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420156924.6U CN203756373U (en) | 2014-04-02 | 2014-04-02 | Stepping motor type exhaust gas recirculation valve for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756373U true CN203756373U (en) | 2014-08-06 |
Family
ID=51251658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420156924.6U Expired - Fee Related CN203756373U (en) | 2014-04-02 | 2014-04-02 | Stepping motor type exhaust gas recirculation valve for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032781A (en) * | 2015-03-19 | 2016-10-19 | 常州科普动力机械有限公司 | EGR stop value, and internal combustion engine and automobile using the same |
-
2014
- 2014-04-02 CN CN201420156924.6U patent/CN203756373U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032781A (en) * | 2015-03-19 | 2016-10-19 | 常州科普动力机械有限公司 | EGR stop value, and internal combustion engine and automobile using the same |
| CN106032781B (en) * | 2015-03-19 | 2018-07-03 | 常州科普动力机械有限公司 | EGR check valves and internal combustion engine, the automobile using the valve |
| CN109139308A (en) * | 2015-03-19 | 2019-01-04 | 常州科普动力机械有限公司 | The working method of internal combustion engine EGR check valve |
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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: 20140806 Termination date: 20160402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |