CN202100348U - EGR (exhaust gas recirculation) valve preventing rusting of valve seat and valve - Google Patents
EGR (exhaust gas recirculation) valve preventing rusting of valve seat and valve Download PDFInfo
- Publication number
- CN202100348U CN202100348U CN201120211487XU CN201120211487U CN202100348U CN 202100348 U CN202100348 U CN 202100348U CN 201120211487X U CN201120211487X U CN 201120211487XU CN 201120211487 U CN201120211487 U CN 201120211487U CN 202100348 U CN202100348 U CN 202100348U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- exhaust gas
- egr
- stainless steel
- 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 - Lifetime
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- Y02T10/121—
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- Exhaust-Gas Circulating Devices (AREA)
- Lift Valve (AREA)
Abstract
The utility model discloses an EGR (exhaust gas recirculation) valve preventing rusting of a valve seat and a valve, which comprises the valve seat, a central rod, the valve, an exhaust gas inlet and an exhaust gas outlet. The valve is connected with one end of the central rod, the exhaust gas inlet and the exhaust gas outlet are arranged on the valve seat, a stainless steel ring is embedded on the exhaust gas inlet, the inner hole of the stainless steel ring is matched with the valve, and a copper sleeve is arranged in the upper end hole of the valve seat and is matched with the central rod in a sliding way. Since the valve is made of stainless steel, the stainless steel ring is additionally arranged at the connection part of the valve seat and the valve of the EGR valve, and thus the contact part of the valve seat and the valve adopts the stainless steel, the problem that the valve seat and the valve cannot be opened as a result of corrosion can be solved, and the reliability of the conventional EGR valve can be improved.
Description
Technical field
The utility model relates to the EGR valve arrangement in the engine exhaust emission gas recirculation system (EGR), belongs to engine exhaust emission control gear technical field.
Background technique
The EGR valve is as the effect of playing the executive component of regulating the EGR gas flow in the engine exhaust-gas recirculating system (egr system).
Because the EGR valve base on present many motors all is an ironcasting; Add in order to improve the working efficiency of EGR valve; Many motors all add cooler for recycled exhaust gas before the EGR valve, therefore cause near the EGR valve seat acidic materials such as sulphurous acid that produce in many condensed waters and the exhaust being arranged.When the motor long period need not after, condensed water and sulphurous acid cause EGR valve valve normally to open just with valve seat corrosion adhesion.
Summary of the invention
The utility model technical problem to be solved provides and a kind ofly can prevent the dead EGR valve of valve seat and valve rust.
The EGR valve of the utility model adopts following scheme:
A kind of dead EGR valve of valve seat and valve rust that prevents comprises the exhaust gas inlet, the waste gas outlet that are provided with on valve that an end of valve seat, center-pole, center-pole connects, the valve seat, is embedded with the stainless steel steel ring on the exhaust gas inlet, and the endoporus and the valve of stainless steel steel ring are suitable.
Be provided with copper sheathing in the upper end hole of valve seat, copper sheathing and center-pole are slidingly matched.
The material of valve is a stainless steel
Beneficial effect: the utility model increases a stainless steel coil with the valve seat and the valve joint of EGR valve, and this stainless steel coil is to put valve seat into from waste gas outlet, from top, valve seat the inside the stainless steel coil interference fit is pressed into valve seat with frock again.The part that contacts with valve of valve seat is a stainless steel like this, and valve seat and valve just can not opened because of corrosion yet, have improved the reliability of traditional E GR valve.
Description of drawings
Fig. 1 is the plan view of the utility model;
Fig. 2 is the sectional view of Fig. 1.
Among the figure: 1-center-pole, 2-copper sheathing, 3-valve seat, 4-valve, 5-stainless steel coil, 6-exhaust gas inlet, 7-waste gas outlet.
Embodiment
Below in conjunction with concrete accompanying drawing and embodiment the utility model is described further.
A kind of valve seat and dead EGR valve of valve rust of preventing; Comprise the exhaust gas inlet 6, the waste gas outlet 7 that are provided with on valve 4 that an end of valve seat 3, center-pole 1, center-pole 1 connects, the valve seat 3; Be embedded with stainless steel steel ring 5 on the exhaust gas inlet 6, the endoporus and the valve 4 of institute's stainless steel steel ring 5 are suitable.
Be provided with copper sheathing 2 in the upper end hole of valve seat 3, copper sheathing 2 is slidingly matched with center-pole 1.
The material of valve 4 is stainless steels
During installation, stainless steel coil 5 interference are pressed into valve seat 3, copper sheathing 2 interference are pressed into 5 valve seats 3, the method for center-pole 1 and valve 4 usefulness being revolved riveting links together.
EGR waste gas and condensed water get into from exhaust gas inlet 6, flow out from waste gas outlet 7, and partial condensation water can be stayed in the exhaust steam passage.When the motor long period did not use, therefore condensed water and sulphurous acid can't, just can corrosion not cause EGR valve corrosion adhesion between cast iron valve seat and the valve with the stainless steel corrosion yet.
Claims (3)
1. one kind prevents valve seat and the dead EGR valve of valve rust; The valve (4), the valve seat (3) that comprise the end connection of valve seat (3), center-pole (1), center-pole (1) are gone up exhaust gas inlet (6), the waste gas outlet (7) that is provided with; It is characterized in that: be embedded with stainless steel steel ring (5) on the said exhaust gas inlet (6), the endoporus of said stainless steel steel ring (5) and valve (4) are suitable.
2. valve seat and the dead EGR valve of valve rust of preventing according to claim 1, it is characterized in that: be provided with copper sheathing (2) in the upper end hole of said valve seat (3), said copper sheathing (2) is slidingly matched with center-pole (1).
3. valve seat and the dead EGR valve of valve rust of preventing according to claim 1, it is characterized in that: the material of said valve (4) is a stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120211487XU CN202100348U (en) | 2011-06-22 | 2011-06-22 | EGR (exhaust gas recirculation) valve preventing rusting of valve seat and valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120211487XU CN202100348U (en) | 2011-06-22 | 2011-06-22 | EGR (exhaust gas recirculation) valve preventing rusting of valve seat and valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202100348U true CN202100348U (en) | 2012-01-04 |
Family
ID=45386363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120211487XU Expired - Lifetime CN202100348U (en) | 2011-06-22 | 2011-06-22 | EGR (exhaust gas recirculation) valve preventing rusting of valve seat and valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202100348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441885A (en) * | 2019-01-17 | 2020-07-24 | 爱三工业株式会社 | EGR valve |
-
2011
- 2011-06-22 CN CN201120211487XU patent/CN202100348U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441885A (en) * | 2019-01-17 | 2020-07-24 | 爱三工业株式会社 | EGR valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214028 No. 231-3 South City Road, Wang Zhuang Street, New District, Jiangsu, Wuxi Patentee after: Wuxi Longsheng Technology Co., Ltd. Address before: 214028 No. 231-3 South City Road, Wang Zhuang Street, New District, Jiangsu, Wuxi Patentee before: Wuxi Longsheng Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |