CN201358850Y - Electromagnetic valve controlling vacuum degree by exhaust pressure - Google Patents
Electromagnetic valve controlling vacuum degree by exhaust pressure Download PDFInfo
- Publication number
- CN201358850Y CN201358850Y CNU2008201544277U CN200820154427U CN201358850Y CN 201358850 Y CN201358850 Y CN 201358850Y CN U2008201544277 U CNU2008201544277 U CN U2008201544277U CN 200820154427 U CN200820154427 U CN 200820154427U CN 201358850 Y CN201358850 Y CN 201358850Y
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- CN
- China
- Prior art keywords
- vacuum
- pressure
- electromagnetic valve
- pressure chamber
- valve
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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.)
- Expired - Fee Related
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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 relates to an electromagnetic valve controlling vacuum degree by exhaust pressure, in particular to a normally opened electromagnetic valve. On the basis of the common electromagnetic valve, the normally opened electromagnetic valve is added with a pressure chamber 4, a shell 5 of the electromagnetic valve is internally provided with an ostiole 6 communicated with a vacuum outlet 3, the sealed pressure chamber 4 is formed by a separating film 7 and a cover 8, and a pressure inlet 2 of the pressure chamber 4 is connected with an exhaust outlet of an exhaust gas recirculation valve; when the pressure of the pressure chamber 4 is more than 20kPa, a boss 9 at the lower part of the separating film 7 completely seals the ostiole 6 which is isolated from ambient atmosphere, and the vacuum degree of a vacuum source 1 can be obtained by the vacuum outlet 3; when pressure chamber 4 has no pressure or is lack of pressure, the separating film 7 leaves from the ostiole 6 under the action of a spring 10; and as the ostiole 6 is communicated with the atmospheric environment, the air flows into the vacuum outlet 3, the vacuum or vacuum degree of the vacuum outlet 3 is not reduced, and the valve opening degree of the exhaust gas recirculation valve can be controlled.
Description
Technical field:
The utility model is to be used for the automobile exhaust gas recirculating system, a kind of solenoid valve of control engine exhaust circulating load.
Background technique:
The automobile exhaust gas recirculating system is by waste gas after burning is reintroduced in the automotive engine combustion chamber, to slow down the combustion process of burning indoor fuel gas, suitably control maximum combustion temperature, thereby reduce the discharge amount of nitrogen oxide NOx in the automobile exhaust pollution thing, make vehicle exhaust reach emission standard.
The model utility content:
Technical problem to be solved in the utility model is, be in the automobile exhaust gas recirculating system, introduce described solenoid valve, make it to control the size of exhaust gas recirculation valve degree of vacuum according to the operating mode of motor, thereby obtain corresponding waste gas circulation amount, reduce the discharge amount of automobile exhaust pollution thing.
Described solenoid valve by exhaust pressure control degree of vacuum is a kind of normal-open electromagnetic valve, i.e. outage is often opened, and energising is closed.Its structure is as shown in Figure 1 and Figure 2:
Solenoid valve has three interfaces: the 1st, and the vacuum source inlet, the 2nd, pressure entrance, the 3rd, vacuum outlet, the utility model has increased a pressure chamber 4 on the basis of general solenoid valve, there is aperture 6 to communicate in the solenoid valve housing 5 with vacuum outlet 3, aperture 6 communicates with ambient air by housing 5 simultaneously, barrier film 7 has formed the pressure chamber 4 that seals with lid 8, the pressure entrance 2 of pressure chamber 4 joins with the exhaust outlet of exhaust gas recirculation valve, when the pressure of pressure chamber 4 during greater than 20kPa, barrier film 7 moves right, the boss 9 of barrier film 7 bottoms is with aperture 6 complete closed, aperture 6 cuts off with ambient air, and this moment, vacuum outlet 3 obtained the degree of vacuum of vacuum source 1, and vacuum source 1 is provided by vacuum pump.Be provided with the spring 10 that may command barrier film 7 leaves aperture 6 in housing 5, when pressure chamber's 4 no pressure or underpressure, barrier film 7 leaves aperture 6 under the effect of spring 10, because aperture 6 communicates with atmosphere environment, there is air stream to go into vacuum outlet 3, vacuum outlet 3 does not have vacuum or degree of vacuum to reduce, thereby can control the valve opening of waste gas circulating valve.
Adopt the advantage of the solenoid valve of exhaust pressure control degree of vacuum:
In the Vehicular waste gas recirculating system is used, motor is when idling and low-load, air displacement is few, and exhaust pressure is also lower, uses this solenoid valve, can reduce the circulating load of waste gas by the reduction of exhaust pressure, motor discharging pollutants yet seldom when low speed do not need a large amount of exhaust gas recirculation amounts, and solenoid valve is according to the size control degree of vacuum of exhaust pressure, close or reduce the capacity of reflux of waste gas, improve the precision of gas recirculation system control waste gas circulation amount.
Description of drawings:
Fig. 1: the section of structure of solenoid valve 12
The left view of Fig. 2: Fig. 1
Fig. 3: the connection figure of solenoid valve and exhaust gas recirculation valve
Embodiment:
Fig. 3 is the connection figure of solenoid valve described in the utility model and exhaust gas recirculation valve, and wherein 11 is the exhaust gas recirculation valve of motor, and 12 is solenoid valve.When this solenoid valve is used for the automobile exhaust gas recirculating system, control the valve opening of waste gas circulating valve by the exhaust pressure of waste gas circulating valve, and waste gas after burning is reintroduced in the automotive engine combustion chamber, to slow down the combustion process of burning indoor fuel gas, suitably control maximum combustion temperature, thereby reduce the discharge amount of nitrogen oxide NOx in the automobile exhaust pollution thing, make vehicle exhaust reach emission standard.As shown in Figure 3, the vacuum outlet 3 of solenoid valve 12 is connected on the vacuum inlet of exhaust gas recirculation valve 11 by rubber pipe 13, and pressure entrance 2 is connected on the exhaust outlet of exhaust gas recirculation valve 11 by rubber pipe 14.Exhaust gas recirculation valve 11 is that valve opening has determined the capacity of reflux of waste gas by vacuum control valve aperture; Valve opening and degree of vacuum, the linear direct ratio of exhaust gas recirculation amount.Nitrogen oxide NOx discharge amount in the vehicle exhaust increases with engine load, the exhaust gas recirculation amount should increase along with load, but when idling and low-load, the nitrogen oxide NOx effluent concentration is low, for guaranteeing normal combustion, do not carry out the circulation of waste gas, solenoid valve 12 is according to the operating mode of motor, the size of control degree of vacuum obtains corresponding waste gas circulation amount.
Claims (1)
1. solenoid valve, it is characterized in that: on the basis of general solenoid valve, increased a pressure chamber (4), form the pressure chamber (4) of sealing by barrier film (7) and lid (8), solenoid valve housing (5) has aperture (6) to communicate with vacuum outlet (3), aperture (6) communicates with ambient air by housing (5) simultaneously, wherein, vacuum outlet (3) communicates with vacuum source (1); Being provided with in barrier film (7) bottom can be with the boss (9) of aperture (6) complete closed, and is provided with the spring (10) that may command barrier film (7) leaves aperture (6) in housing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201544277U CN201358850Y (en) | 2008-10-24 | 2008-10-24 | Electromagnetic valve controlling vacuum degree by exhaust pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201544277U CN201358850Y (en) | 2008-10-24 | 2008-10-24 | Electromagnetic valve controlling vacuum degree by exhaust pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201358850Y true CN201358850Y (en) | 2009-12-09 |
Family
ID=41424613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201544277U Expired - Fee Related CN201358850Y (en) | 2008-10-24 | 2008-10-24 | Electromagnetic valve controlling vacuum degree by exhaust pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201358850Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080612A (en) * | 2011-03-12 | 2011-06-01 | 无锡隆盛科技有限公司 | Vacuum electromagnetic regulator |
| CN102606349A (en) * | 2012-04-07 | 2012-07-25 | 无锡隆盛科技有限公司 | Vacuum electromagnetic regulator |
| CN102996262A (en) * | 2012-11-28 | 2013-03-27 | 昌辉汽车电器（黄山）股份公司 | Diaphragm plate type idle speed control valve |
| CN111692403A (en) * | 2019-03-14 | 2020-09-22 | 台湾气立股份有限公司 | Vacuum large-capacity electric control proportional valve |
-
2008
- 2008-10-24 CN CNU2008201544277U patent/CN201358850Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080612A (en) * | 2011-03-12 | 2011-06-01 | 无锡隆盛科技有限公司 | Vacuum electromagnetic regulator |
| CN102606349A (en) * | 2012-04-07 | 2012-07-25 | 无锡隆盛科技有限公司 | Vacuum electromagnetic regulator |
| CN102606349B (en) * | 2012-04-07 | 2013-08-21 | 无锡隆盛科技股份有限公司 | Vacuum electromagnetic regulator |
| CN102996262A (en) * | 2012-11-28 | 2013-03-27 | 昌辉汽车电器（黄山）股份公司 | Diaphragm plate type idle speed control valve |
| CN102996262B (en) * | 2012-11-28 | 2017-11-24 | 昌辉汽车电器（黄山）股份公司 | A kind of diaphragm plate type IAC |
| CN111692403A (en) * | 2019-03-14 | 2020-09-22 | 台湾气立股份有限公司 | Vacuum large-capacity electric control proportional 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: 20091209 Termination date: 20171024 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |