CN202348485U - Carbon tank solenoid valve - Google Patents
Carbon tank solenoid valve Download PDFInfo
- Publication number
- CN202348485U CN202348485U CN2011205016879U CN201120501687U CN202348485U CN 202348485 U CN202348485 U CN 202348485U CN 2011205016879 U CN2011205016879 U CN 2011205016879U CN 201120501687 U CN201120501687 U CN 201120501687U CN 202348485 U CN202348485 U CN 202348485U
- Authority
- CN
- China
- Prior art keywords
- iron core
- sealing gasket
- coil rack
- valve
- coil
- 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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Abstract
The utility model relates to a carbon tank solenoid valve, which has the main structure that: one part is a plastic shell part, and the other part is a valve body assembly part. The valve body assembly part has the main structure that: a coil and a coil framework are arranged in a shell; an airflow channel is arranged in a central hole of the coil framework; a movable core with a rubber gasket, a spring and a static core are assembled in the central hole of the coil framework; and the valve body assembly part is integrated with the shell through secondary injection. The carbon tank solenoid valve has the advantages that the product structure is compact, the product parameters can be adjusted through adjusting the static core when in assembly, the requirement on precision of parts is low, and meanwhile, the gasket of the movable core is close to an outlet end of the carbon tank solenoid valve, so that the sealing performance of the product is improved, and the qualified rate of the product is improved.
Description
Technical field
The utility model relates to a kind of Valve EGR that is used for the motor car engine electric spray control system; Through the to-and-fro motion of moving iron core under impulsive current in the Valve EGR; And the degree of vacuum size of outlet end (motor sucking pipe) controls the flow size that gasoline vapor gets into engine start machine sucking pipe in the canister, belongs to automobile engine system attachment technique field.
Background technique
The gasoline evaporation is to the pollution and the raising gasoline Economy of environment in the fuel tank in order to reduce for the working principle of Valve EGR, and Modern Car is controlled gasoline volatilization, has generally adopted the activated carbon canister system.Gasoline vapor in the fuel tank is adsorbed by the active carbon in the canister.When engine running; Electronic control unit is through the break-make of control activated carbon canister solenoid valve; Rely on the degree of vacuum in the motor sucking pipe that gasoline vapor in the canister is sucked the sucking pipe of motor, can reduce hydrocarbon and fuel saving in the atmosphere the control of gasoline vapor.The existing Valve EGR (seeing accompanying drawing 2) that is used for engine accessory system, its structure is: coil block, the moving iron core that has sealing gasket, spring, static iron core, fabricated plastic casing.Its defective is that the sealing gasket of iron core is positioned at entry end (logical atmospheric side), is prone to take place gasoline vapor and leaks; It is unadjustable that static iron core is press-fitted the back, and parts size precision is required high; Fabricated plastic casing requires high to assembly technology, need could guarantee sealing through welding.
Summary of the invention
What the utility model proposed is a kind of Valve EGR, and it is high that its purpose is intended to overcome existing in prior technology valve port leak-down rate, and static iron core is unadjustable, and plastic casing such as need weld at defective.Adopt moving iron core band sealing gasket, and the sealing surface of sealing gasket is in the Valve EGR outlet end, static iron core is can regulate at the housing center, the Valve EGR that plastic casing need not weld.
The technical solution of the utility model: it is characterized in that forming valve component by coil rack, static iron core, moving iron core, housing, sealing gasket, coil winding, fixed plate, spring, shell; Fixed plate setting-in when injection moulding wherein; Form the coil rack assembly through injection moulding and coil rack; The center hole of coil rack is the flow channel of gasoline vapor, is equipped with moving iron core, spring and the static iron core of band sealing gasket in this flow channel, and the sealing gasket sealing surface on center hole inner conical surface and the moving iron core constitutes valve port; The coil rack circumferential groove is the fixed groove of coil winding, and the coil rack assembly forms outside supporting housing through injection moulding more afterwards; The moving iron core of the described band sealing gasket gasoline vapor flow channel in the coil rack of packing into; The inner conical surface of this gasoline vapor flow channel and coil rack constitutes valve port, and forms sealing, because the sealing surface of sealing gasket is positioned at the Valve EGR outlet end; In the motor suction side; When engine operation, the Valve EGR outlet is distolateral to be negative pressure, and sealing gasket is under the atmospheric effect of Valve EGR entry end; The inner conical surface of sealing gasket sphere and coil rack is adjacent to, thereby has reduced the leak-down rate of valve port.And the screw-in through static iron core screws out, the pretightening force of Regulation spring, thus adjusted the parameter of product.
The advantage of the utility model: because the moving iron core of band sealing gasket is positioned at outlet end, the sealing surface of sealing gasket is set to sphere, and coil rack endoporus and sealing gasket sealing part are set to the conical surface, have improved the sealing that sealing gasket and coil rack constitute valve port.Product parameters is regulated in screw-in or back-out through static iron core, has increased the assembling capacity of product, has improved the up-to-standard rate of product.Valve component forms shell through the mode of quadric injection mould, has improved production efficiency of products.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model.
Accompanying drawing 2 is prior art constructions schematic representation.
Among the figure: the 1st, shell, the 2nd, terminal, the 3rd, static iron core, the 4th, housing, the 5th, coil winding, the 6th, fixed plate, the 7th, coil rack, the 8th, O shape circle, the 9th, sealing gasket, the 10th, moving iron core, the 11st, spring.
Embodiment
Contrast accompanying drawing 1; Its main structure is divided into two-part: the one, and the plastic casing part; The 2nd, the valve component part, wherein valve component is made up of coil rack 7, static iron core 3, moving iron core 10, housing 4, sealing gasket 9, coil winding 5, fixed plate 6, spring 11, shell 1, wherein fixed plate 6 setting-in when injection moulding; Form the coil rack assembly through injection moulding and coil rack 7; The center hole of coil rack 7 is the flow channel of gasoline vapor, is equipped with moving iron core 10, spring 11 and the static iron core 3 of band sealing gasket 9 in this flow channel, and sealing gasket 9 sealing surfaces on center hole inner conical surface and the moving iron core 10 constitute valve port; Coil rack 7 circumferential groove are the fixed groove of coil winding 5, and the coil rack assembly forms outside supporting housing through injection moulding more afterwards.
The moving iron core 10 of the band sealing gasket 9 gasoline vapor flow channel in the coil rack 7 of packing into constitutes valve port with the inner conical surface of coil rack 7, and forms sealing.Because the sealing surface of sealing gasket 9 is positioned at the Valve EGR outlet end; (motor suction side); When engine operation, the Valve EGR outlet is distolateral to be negative pressure, and sealing gasket 9 is under the atmospheric effect of Valve EGR entry end; The inner conical surface of sealing gasket 9 spheres and coil rack 7 is adjacent to, thereby has reduced the leak-down rate of valve port.And the screw-in through static iron core 3 screws out, the pretightening force of Regulation spring 11, thus adjusted the parameter of product.
The sealing gasket 9 of moving iron core 10 is near outlet end (engine side), and the sealing gasket sealing surface is set to sphere, is set to inner conical surface with coil rack and cooperatively interacts, and seals.
The endoporus of static iron core 3 and housing 4 is provided with screw thread, and static iron core and housing cooperate through screw thread, regulates the screw-in of static iron core or screws out the purpose that can reach the adjustment product parameters.
As inserts, the shell 1 and the valve component that form during quadric injection mould partly are closely as one the valve component part when quadric injection mould, do not need extra processing or assembling promptly to form product, have reduced the assembling and the welding of shell 1.
Working procedure: when motor car engine is operated in certain rotating speed; Control unit can send pulse control signal to Valve EGR; Valve EGR is under the effect of impulsive current; The frequent unlatching of moving iron core 10 is with closed, and gasoline vapor is inhaled into engine chamber and participates in burning under the effect of motor sucking pipe negative pressure of vacuum in the canister.The dutycycle of sending impulsive current along with control unit is different, and it is different that the sealing gasket that makes iron core and the aperture that the coil rack inner conical surface is opened also produce, thereby the flow of the interior gasoline vapor entering of canister motor sucking pipe is directly proportional with valve port opening.
Claims (3)
1. Valve EGR; It is characterized in that comprising coil rack, static iron core, moving iron core, housing, sealing gasket, coil winding, fixed plate, spring, shell composition valve component; Wherein the center hole of coil rack is the flow channel of gasoline vapor; Be equipped with moving iron core, spring and the static iron core of band sealing gasket in this flow channel, the inner conical surface of gasoline vapor flow channel and coil rack constitutes valve port, and the coil rack circumferential groove is the fixed groove of coil winding; The sealing surface of sealing gasket is positioned at the Valve EGR outlet end, in the motor suction side.
2. Valve EGR according to claim 1 is characterized in that the sealing gasket sealing surface is set to sphere, is set to inner conical surface with coil rack and cooperatively interacts.
3. Valve EGR according to claim 1 is characterized in that the endoporus of static iron core and housing is provided with screw thread, and static iron core and housing cooperate through screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205016879U CN202348485U (en) | 2011-12-06 | 2011-12-06 | Carbon tank solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205016879U CN202348485U (en) | 2011-12-06 | 2011-12-06 | Carbon tank solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348485U true CN202348485U (en) | 2012-07-25 |
Family
ID=46537494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205016879U Expired - Lifetime CN202348485U (en) | 2011-12-06 | 2011-12-06 | Carbon tank solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348485U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879547A (en) * | 2015-06-04 | 2015-09-02 | 昆山大庚汽车配件有限公司 | Electromagnetic valve structure of light automobile |
| CN104952586A (en) * | 2015-06-26 | 2015-09-30 | 贵州新安航空机械有限责任公司 | Solenoid valve coil rack seal |
| CN108488465A (en) * | 2018-03-02 | 2018-09-04 | 重庆长安志阳汽车电气有限责任公司 | Valve EGR |
| CN109973705A (en) * | 2017-12-27 | 2019-07-05 | 浙江三花汽车零部件有限公司 | Solenoid valve |
-
2011
- 2011-12-06 CN CN2011205016879U patent/CN202348485U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879547A (en) * | 2015-06-04 | 2015-09-02 | 昆山大庚汽车配件有限公司 | Electromagnetic valve structure of light automobile |
| CN104952586A (en) * | 2015-06-26 | 2015-09-30 | 贵州新安航空机械有限责任公司 | Solenoid valve coil rack seal |
| CN109973705A (en) * | 2017-12-27 | 2019-07-05 | 浙江三花汽车零部件有限公司 | Solenoid valve |
| CN109973705B (en) * | 2017-12-27 | 2021-03-09 | 浙江三花汽车零部件有限公司 | Electromagnetic valve |
| CN108488465A (en) * | 2018-03-02 | 2018-09-04 | 重庆长安志阳汽车电气有限责任公司 | Valve EGR |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |