CN203022919U - Electric EGR (Exhaust Gas Recirculation) valve - Google Patents
Electric EGR (Exhaust Gas Recirculation) valve Download PDFInfo
- Publication number
- CN203022919U CN203022919U CN2013200005769U CN201320000576U CN203022919U CN 203022919 U CN203022919 U CN 203022919U CN 2013200005769 U CN2013200005769 U CN 2013200005769U CN 201320000576 U CN201320000576 U CN 201320000576U CN 203022919 U CN203022919 U CN 203022919U
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- CN
- China
- Prior art keywords
- coil
- inserted sheet
- valve
- insert
- electric egr
- 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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- 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 electric EGR (Exhaust Gas Recirculation) valve which comprises a coil and a displacement sensor, wherein the coil and the displacement sensor are arranged inside a valve body and are connected together through an insert; the coil comprises a framework on which copper wires are wound; the insert is fixedly installed on the framework and is arranged perpendicularly to the framework; the bottom end of the insert is welded with the copper wires; a butting inserting hole through which the insert penetrates is formed in the position opposite to the coil, on the displacement sensor; and the insert and the butting inserting hole are in interference fit. The electric EGR valve is high in reliability, can effectively avoid the occurrence of the phenomenon that the electric EGR valve is ineffective because of the vibration generated in the working process of a motor, and can further ensure the normal operation of a motor waste gas recirculation system.
Description
Technical field
The utility model relates to EGR valve in engine exhaust emission control gear field, particularly a kind of engine exhaust emission gas recirculation system.
Background technique
EGR is that the part exhaust of engine combustion is introduced in admission line, improves combustion performance, to reduce formation and the discharge amount of NOx in engine exhaust, reduces exhaust pollution.
The EGR valve is mainly used in regulating the flow of controlling EGR gas in engine exhaust-gas recirculating system (egr system).Electric EGR valve is one and is arranged on the electromechanical integrated product that is used for controlling the amount of exhaust gas recirculation that feeds back to gas handling system on the petrol engine motor, and displacement transducer and coil are exactly being used for monitoring and controlling the important regulating and controlling parts of EGR valve opening in electric EGR valve.For guaranteeing the normal operation of engine exhaust-gas recirculating system, electric EGR valve needs the reliable and stable control of completing the EGR valve opening.Be connected by the mode of pegging graft between the displacement transducer in electric EGR valve commonly used and coil at present, the inserted sheet that namely is fixedly installed on displacement transducer plugs with the double-reed that is fixedly installed on coil, thereby realizes being connected between displacement transducer and coil.But, because electric EGR valve is connected with motor, in engine working process, motor and electric EGR valve are in vibrational state always, easily cause inserted sheet on displacement transducer and the spring sheet on coil to be separated, coil can not get power supply, makes whole electric EGR valve ineffective in system.
Summary of the invention
The technical problem that the utility model solves is to provide a kind of electric EGR valve of good reliability, can effectively avoid further guaranteeing the normal operation of engine exhaust-gas recirculating system because motor produces the generation that vibration causes the electric EGR valve failure phenomenon in the course of the work.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
Electric EGR valve comprises being arranged on coil and the displacement transducer that connects by inserted sheet in valve body that described coil comprises the skeleton that is wound with copper cash, and described inserted sheet is fixedly mounted on skeleton and arrange vertical with skeleton, and weld mutually with copper cash the bottom of inserted sheet; The position that described displacement transducer is relative with coil be provided be used to pass inserted sheet to jack, described inserted sheet with to the jack interference fit.
Owing to having adopted above technological scheme, the obtained technological progress of the utility model is:
The utility model is by being fixedly installed on inserted sheet on the skeleton of coil, and inserted sheet and the copper cash of coil are welded mutually, guaranteeing that inserted sheet installs on stable basis, guaranteed the good contact of inserted sheet and coil copper cash.Be connected by the mode that jack and inserted sheet are matched between coil of the present utility model and displacement transducer, to adopting the mode of interference fit between jack and inserted sheet, make be connected between displacement transducer and coil more reliable, can effectively prevent the coil that causes because of engine luggine and the generation of displacement transducer bad connection phenomenon, greatly improve reliability of the present utility model, guaranteed the normal operation of engine exhaust-gas recirculating system.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein: 1. valve body, 2. go up magnetic sheet, 3. displacement transducer, 3-1. contact pin, 3-2. inserted sheet, 3-3. be to jack, 4. coil, 4-1. skeleton.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.
A kind of electric EGR valve comprises the coil 4 and the displacement transducer 3 that are arranged in valve body 1, is provided with magnetic sheet 2 on the valve body between coil 4 and displacement transducer 3, and upper magnetic sheet 2 is used for the fixed displacement sensor.Connect by inserted sheet 3-2 between coil 4 and displacement transducer 3, as shown in Figure 1.
The position that displacement transducer 3 is relative with coil is provided with jack 3-3, is used for passing inserted sheet 3-2.Inserted sheet 3-2 and to being interference fit between jack 3-3.Also be injected with three contact pin 3-1 in displacement transducer.
At first the utility model when assembling be arranged on inserted sheet on the skeleton that is wound with copper cash, then with copper cash and and the bottom of inserted sheet weld together, then by the injection moulding mode, skeleton, copper cash and inserted sheet are encapsulated as whole coil; Coil is fixed in valve body, then placing magnetic sheet on coil, places displacement transducer on upper magnetic sheet; At last displacement transducer jack is stretched in displacement transducer directly passed on the top of inserted sheet and get final product, be connected firmly, reliability is high.
Claims (1)
1. electric EGR valve, comprise and be arranged on coil (4) and the displacement transducer (3) that connects by inserted sheet (3-2) in valve body, described coil comprises the skeleton (4-1) that is wound with copper cash, it is characterized in that: described inserted sheet (3-2) is fixedly mounted on skeleton (4-1) upward and arrange vertical with skeleton, and weld mutually with copper cash the bottom of inserted sheet (3-2); Described displacement transducer (3) position relative with coil be provided be used to pass inserted sheet (3-2) to jack (3-3), described inserted sheet (3-2) with to jack (3-3) interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200005769U CN203022919U (en) | 2013-01-03 | 2013-01-03 | Electric EGR (Exhaust Gas Recirculation) valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200005769U CN203022919U (en) | 2013-01-03 | 2013-01-03 | Electric EGR (Exhaust Gas Recirculation) valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203022919U true CN203022919U (en) | 2013-06-26 |
Family
ID=48646909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200005769U Expired - Fee Related CN203022919U (en) | 2013-01-03 | 2013-01-03 | Electric EGR (Exhaust Gas Recirculation) valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203022919U (en) |
-
2013
- 2013-01-03 CN CN2013200005769U patent/CN203022919U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20210103 |