CN203892073U - Automobile EGR valve - Google Patents
Automobile EGR valve Download PDFInfo
- Publication number
- CN203892073U CN203892073U CN201420340114.6U CN201420340114U CN203892073U CN 203892073 U CN203892073 U CN 203892073U CN 201420340114 U CN201420340114 U CN 201420340114U CN 203892073 U CN203892073 U CN 203892073U
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- CN
- China
- Prior art keywords
- valve
- valve seat
- automobile egr
- port
- automobile
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- 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.)
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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
Abstract
The utility model discloses an automobile EGR valve which comprises a valve seat and a valve rod arranged in the valve seat. The valve seat is provided with an air inlet. The air inlet is internally provided with a valve opening matched with the valve rod. The outer surface of the valve opening is provided with a first threaded structure, and the inner wall of the valve seat is provided with a second threaded structure matched with the first threaded structure. According to the automobile EGR valve, the problems that due to the fact that a valve seat and a valve opening of an existing automobile EGR valve are of an integrated type, the machining precision of parts is high, production cost is high, and the product performance cannot be adjusted after the existing automobile EGR is assembled, so that the reject ratio of products is increased and the products cannot be repaired are solved. The automobile EGR valve is simple and reliable in structure and can be widely applied to the field of automobile EGR valves.
Description
Technical field
The utility model relates to a kind of automobile EGR valve.
Background technique
Exhaust gas recirculation (egr) valve, be called for short EGR valve, the working principle of exhaust gas recirculation (egr) valve is: when motor car engine produces the vacuum of moment when working, the valve port of exhaust gas recirculation valve is opened, the waste gas part that motor is discharged sends back to the suction tude of motor again by the inlet hole of exhaust gas recirculation valve, again enter cylinder participate in burning with ozone after mixing.Because nitrogen and oxygen only just chemical reaction can occur under high-temperature and high-pressure conditions, as long as the indoor temperature and pressure of engine combustion can not meet its formation condition, just can stop the generation of NOx.In the waste gas that automobile is got rid of, contain a large amount of CO2, and CO2 can not burn, but can absorb a large amount of heat, thereby the maximum temperature of mixed gas burning in cylinder is reduced, reduced the growing amount of NOx in combustion process, reduce the content of NOx in waste gas, thereby alleviate exhaust emission, reach the limit value requirement of Abgasgesetz to NOx in exhaust.
Under the fast-developing situation of World Economics, automobile industry has obtained development at full speed especially, and the universal one side of automobile has facilitated people's traffic, and pollution atmosphere being caused due to vehicle exhaust harmful substance is on the other hand also more and more serious.For effective protection of the environment, various countries are also more and more stricter to the regulation of motor vehicle exhaust emission.The developed countries such as Europe, the United States are just conducting in-depth research this respect a long time ago, due to gas recirculation system (egr system) outstanding effect aspect the discharge of NOX content in reducing vehicle exhaust, egr system is finally widely used and constantly development.At present domestic environmental protection is more and more paid attention to, exhaust gas recirculation valve is used universal gradually.Mostly the mechanical type EGR valve arrangement using now is valve seat and valve port integral type if adopting, the difficulty of not only processing is large, because seat material is that after cast iron valve works long hours, the wearing and tearing due to valve port cause hydraulic performance decline or inefficacy; And assemble rear product performance and can not implement to regulate, cause product disqualification rate to improve, cannot reprocess; Because Product Assembly cannot implement regulate product performance after good, so element precision requires highly, causes the raising of cost of production.
The utility model content
The purpose of this utility model is to provide a kind of automobile EGR valve, solve existing automobile EGR valve because valve seat and valve port integral type, and the part processing precision causing is high, cost of production is high, and to product performance, can not implement to regulate afterwards because assembling, can cause product disqualification rate to improve, the problem that cannot reprocess.
The utility model solves the technological scheme that its technical problem adopts: a kind of automobile EGR valve, comprise valve seat, and be arranged on the valve rod in valve seat, on described valve seat, be provided with suction port; In described suction port, be provided with the valve port suitable with valve rod, described valve port outer surface is provided with the first worm structure, and described valve base inner wall is provided with second worm structure suitable with the first worm structure.
Further, described valve port comprises large footpath oral pillar body and path oral pillar body, and the first described screw thread covers the external side surface of large footpath oral pillar, and cavity and the valve rod of described path oral pillar body are suitable.
For better fixedly valve port, described valve port is riveted on valve seat.
Preferably, on described valve rod, be provided with circle structure, described valve port inwall is provided with the spacing inclined-plane suitable with circle structure.
The beneficial effects of the utility model: the split type regulation structure that adopts valve seat and valve port, due to what adopt between valve seat and valve port, be that worm structure is connected, for the product assembling, can be by regulating valve port positional to realize the desired properties of product, improve the up-to-standard rate of product, the while is for convenience detach reprocessing also; Because Product Assembly can implement regulate product performance after good, thus element precision require relative valve and valve port integral type much lower, thereby can effectively reduce production costs.Valve port comprises large footpath oral pillar body and path oral pillar body, and the first screw thread covers the external side surface of large footpath oral pillar, and path oral pillar body is set in positive stop lug boss, makes the valve port can easy reliable must being assemblied on valve seat, and the reliability of guaranteed performance.Valve port is selected the relative fixed position with valve seat by worm structure, then is riveted on valve seat, effectively fixedly valve port, the stability of enhancing product performance and the up-to-standard rate of product.On valve rod, be provided with circle structure, valve port inwall is provided with the spacing inclined-plane suitable with circle structure, guarantees realizing simply, reliably of whole product performance.
The utility model can effectively solve existing automobile EGR valve because valve seat and valve port integral type, and the difficulty of processing causing is large, cost of production is high, and to product performance, can not implement to regulate afterwards because assembling, can cause product disqualification rate to improve, the problem that cannot reprocess, and simple and reliable for structure, can be widely used in automobile EGR valve field.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment, refers to Fig. 1, and a kind of automobile EGR valve as shown in the figure, comprises valve seat 1, is arranged on the valve rod 2 in valve seat 1, on described valve seat 1, is provided with suction port 3; In described suction port 3, be provided with the valve port 5 suitable with valve rod 2, described valve port 5 outer surfaces are provided with the first worm structure, and described valve seat 1 inwall is provided with second worm structure suitable with the first worm structure.Described valve port 5 comprises large footpath oral pillar body 6 and path oral pillar body 7, and the first described screw thread covers large footpath oral pillar body 6 outer surfaces, and cavity and the valve rod 2 of described path oral pillar body 7 are suitable.On described valve rod 2, be provided with circle structure 9, described valve port 5 inwalls are provided with the spacing inclined-plane 8 suitable with circle structure 9.Between valve port 5 and valve seat 1, by worm structure, screw, by regulating the upper-lower position of valve port 5 to make product reach usability requirement, and then riveted joint is fixed on valve seat 1.
Claims (4)
1. an automobile EGR valve, comprises valve seat (1), is arranged on the valve rod (2) in valve seat (1), is provided with suction port (3) on described valve seat (1); It is characterized in that: in described suction port (3), be provided with and valve port (5) that valve rod (2) is suitable, described valve port (5) outer surface is provided with the first worm structure, and described valve seat (1) inwall is provided with second worm structure suitable with the first worm structure.
2. automobile EGR valve according to claim 1, it is characterized in that: described valve port (5) comprises large footpath oral pillar body (6) and path oral pillar body (7), the first described screw thread covers large footpath oral pillar body (6) outer surface, and cavity and the valve rod (2) of described path oral pillar body (7) are suitable.
3. automobile EGR valve according to claim 1 and 2, is characterized in that: described valve port (5) is riveted on valve seat (1).
4. automobile EGR valve according to claim 3, it is characterized in that: on described valve rod (2), be provided with circle structure (9), the spacing inclined-plane (8) that described valve port (5) inwall is provided with and circle structure (9) is suitable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340114.6U CN203892073U (en) | 2014-06-24 | 2014-06-24 | Automobile EGR valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340114.6U CN203892073U (en) | 2014-06-24 | 2014-06-24 | Automobile EGR valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203892073U true CN203892073U (en) | 2014-10-22 |
Family
ID=51718486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420340114.6U Active CN203892073U (en) | 2014-06-24 | 2014-06-24 | Automobile EGR valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203892073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024022000A1 (en) * | 2022-07-27 | 2024-02-01 | 广东威灵电机制造有限公司 | Electronic expansion valve assembly, electronic expansion valve, and refrigeration appliance |
-
2014
- 2014-06-24 CN CN201420340114.6U patent/CN203892073U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024022000A1 (en) * | 2022-07-27 | 2024-02-01 | 广东威灵电机制造有限公司 | Electronic expansion valve assembly, electronic expansion valve, and refrigeration appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |