CN205446833U - Slip pressure change valve - Google Patents
Slip pressure change valve Download PDFInfo
- Publication number
- CN205446833U CN205446833U CN201521113696.5U CN201521113696U CN205446833U CN 205446833 U CN205446833 U CN 205446833U CN 201521113696 U CN201521113696 U CN 201521113696U CN 205446833 U CN205446833 U CN 205446833U
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- CN
- China
- Prior art keywords
- valve pocket
- flexible sheet
- guide rail
- valve
- periphery
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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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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model discloses a slip pressure change valve. This slip pressure change valve includes the valve pocket, and the first through -hole with external intercommunication is offered at the both ends of valve pocket, and the guide rail that is on a parallel with the valve pocket axis is put to the flexible diaphragm of sliding connection in the valve pocket, the interior wall cloth of valve pocket, the periphery of flexible sheet be provided with with guide rail complex recess, the flexible sheet slides in the valve pocket along the guide rail, the cross -section of guide rail is diminished to the end of giving vent to anger by the inlet end of valve pocket gradually, and the flexible sheet is provided with the bleeder vent, and the periphery of bleeder vent is provided with radial crack, and the laminating can be sealed with two terminal surfaces of valve pocket in two sides of flexible sheet. Removal and deformation adjustment gas flow and flow direction through the flexible sheet for the oil tank guarantees that the engine obtains the optimality ability, has improved the security performance of vehicle in being in reasonable pressure range.
Description
Technical field
This utility model relates to canister device, particularly relates to a kind of slip variable pressure valve being arranged between canister and fuel tank.
Background technology
Gasoline is volatile fuel, fuel oil in fuel tank can quickly volatilize increases the pressure of fuel tank internal, certain danger will be produced when pressure arrives certain value, so people just try to balance pressure, it is initially and fuel tank cap has been made pressure limiting valve, when pressure exceeds a certain value, pressure limiting valve turns on, gasoline vapor is discharged in air, later, people set out for the angle saving fuel and protection environment, the canister arranged, filled by the activated carbon that adsorptivity is the strongest inside canister, fuel-steam unnecessary in fuel tank is no longer discharged in air, but have a pipe to introduce activated carbon canister.Being activated carbon adsorption fuel-steam, when start when, activated carbon canister electromagnetic valve is opened in good time, and the fuel-steam of absorption is re-poured into inlet manifold, to reach the purpose of saving fuel oil and environmental protection.
Being that tank internal pressure increase is very fast in oiling, when gasoline evaporates, tank pressure raises, and during engine work, tank pressure diminishes, and the increase of tank pressure and reduction all can have influence on performance and the safety of car.How to ensure that fuel tank makes engine be obtained in that more preferable power improves the security performance of vehicle simultaneously in being in rational pressure limit, this is always one of the applicant's content endeavouring research.
Summary of the invention
The purpose of this utility model is the deficiency existed for prior art, it is provided that the slip variable pressure valve of pressure in a kind of trim tank, improves the security performance of vehicle.
For achieving the above object, this utility model slip variable pressure valve the technical scheme is that
A kind of slip variable pressure valve, including valve pocket, the two ends of valve pocket offer the first through hole being in communication with the outside, flexible sheet is slidably connected in valve pocket, the inwall of valve pocket is disposed with the guide rail being parallel to valve pocket axis, the periphery of flexible sheet is provided with the groove coordinated with guide rail, flexible sheet slides in valve pocket along guide rail, described guide rail is tapered into outlet side by the inlet end of valve pocket, flexible sheet is provided with air-vent, the periphery of air-vent is provided with radial crack, and two sides of flexible sheet and two end faces of valve pocket can seal laminating.
Flexible sheet periphery is provided with frame, frame offer the groove coordinated with guide rail, two sides of frame and two end faces of valve pocket are plane.
Flexible sheet periphery is provided with frame, frame offer the groove coordinated with guide rail, two sides of frame are set to convex cone face, and two end faces of valve pocket are set to concave cone face.
This utility model compared with prior art, has the advantage that
The inlet end of slip variable pressure valve connects with fuel tank, and outlet side connects with canister, at tank pressure in the reasonable scope, fuel tank by the first through hole and air-vent connect with canister so that the pressure in fuel tank be in rational in the range of；When tank pressure raises, flexible sheet moves to outlet side, and now the gas in mailbox is flowed in canister by the first through hole, gap between air-vent and flexible sheet and guide rail, and gas flow is substantially improved, quickly to reduce tank pressure；After tank pressure continues to increase, the outlet side end face laminating of the one side of flexible sheet and valve pocket, flexible sheet deforms, and radial crack is launched, now the gas in mailbox is flowed in canister by the crack of the first through hole, air-vent and flexible sheet, and gas flow increases further；When being negative pressure in fuel tank, flexible sheet resets, and gas realizes circulation by air-vent and the first through hole, it is ensured that in the range of tank pressure is in reasonably.By the movement of slip flexible sheet and deformation adjustment gas flow and flow direction so that fuel tank is in rational pressure limit, it is ensured that engine obtains optimum performance, improves the security performance of vehicle simultaneously.Slip variable pressure valve volume of the present utility model is little, and space availability ratio is high, and low cost is simple and reasonable, it is achieved mechanical automatically control, and stability is high.
Accompanying drawing explanation
Fig. 1 is the sectional view of slip variable pressure valve.
Fig. 2 is A-A sectional view in Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, it is further elucidated with this utility model, it should be understood that these embodiments are merely to illustrate this utility model rather than limit scope of the present utility model, after having read this utility model, those skilled in the art all fall within the application claims limited range to the amendment of the various equivalent form of values of the present utility model.
As depicted in figs. 1 and 2, a kind of slip variable pressure valve, including valve gap 1 and valve body 2, valve gap is fixedly connected with the valve body, and the Inner Constitution of the two valve pocket 3, valve pocket is in communication with the outside with the first through hole 4 on valve body by being opened in valve gap.Valve body is connected with fuel tank, and valve gap is connected with canister.Flexible sheet 5 is slidably connected in valve pocket, the periphery of flexible sheet 5 is provided with harder frame 51, flexible sheet is provided with air-vent 52, the periphery of air-vent is provided with radial crack 53, the shape crack 53 of penetrating of flexible sheet is to close in its natural state, penetrate shape crack 53 after stress deformation and can produce gap, two sides of frame and two end faces of valve pocket can seal laminating, two sides of this utility model frame use plane, two end faces inside valve pocket are plane, so plane is capable of sealing with plane laminating, alternatively deform, two sides of frame are set to convex cone face, two end faces of valve pocket are set to concave cone face, convex cone face and recessed cone match also are able to realize gluing, sealing.The inner wall even distribution of valve pocket has four roads to be parallel to the guide rail 21 of valve pocket axis, the frame 51 of flexible sheet offers the groove 54 coordinated with guide rail 21, flexible sheet slides in valve pocket along guide rail, the cross section of guide rail is tapered into outlet side by the inlet end of valve pocket, the when that flexible sheet being moved to outlet side by the inlet end of valve pocket, flexible sheet is the biggest with the gap of valve pocket, adds the gap that air-flow passes through.Flexible sheet is rubber diaphragm.Flexible sheet can use composite rubber material, polyurethane material can also be used, in order to improve the elastic modelling quantity of flexible sheet, being internally provided with thin slice at flexible sheet, the outside of thin slice is coated with rubber or polyurethane elastomeric material, and thin slice is provided with through hole, radial groove is offered in the outside of through hole, rubber or polyurethane elastomeric material are coated on the outside of groove so that between groove is to close in its natural state, has the crack opened after stress deformation.
Claims (3)
1. a slip variable pressure valve, it is characterized in that: include valve pocket, the two ends of valve pocket offer the first through hole being in communication with the outside, flexible sheet is slidably connected in valve pocket, the inwall of valve pocket is disposed with the guide rail being parallel to valve pocket axis, the periphery of flexible sheet is provided with the groove coordinated with guide rail, flexible sheet slides in valve pocket along guide rail, the cross section of described guide rail is tapered into outlet side by the inlet end of valve pocket, flexible sheet is provided with air-vent, the periphery of air-vent is provided with radial crack, two sides of flexible sheet and two end faces of valve pocket can seal laminating.
Slip variable pressure valve the most according to claim 1, it is characterised in that: flexible sheet periphery is provided with frame, frame offer the groove coordinated with guide rail, two sides of frame and two end faces of valve pocket are plane.
Slip variable pressure valve the most according to claim 1, it is characterised in that: flexible sheet periphery is provided with frame, frame offer the groove coordinated with guide rail, two sides of frame are set to convex cone face, and two end faces of valve pocket are set to concave cone face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521113696.5U CN205446833U (en) | 2015-12-29 | 2015-12-29 | Slip pressure change valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521113696.5U CN205446833U (en) | 2015-12-29 | 2015-12-29 | Slip pressure change valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205446833U true CN205446833U (en) | 2016-08-10 |
Family
ID=56572003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521113696.5U Active CN205446833U (en) | 2015-12-29 | 2015-12-29 | Slip pressure change valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205446833U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302835A (en) * | 2020-11-11 | 2021-02-02 | 江西昌河汽车有限责任公司 | Integrated carbon tank |
| CN112870928A (en) * | 2021-03-18 | 2021-06-01 | 华景微纳科技(苏州)有限公司 | High-permeability drying agent product with air partition |
| CN112870927A (en) * | 2021-03-18 | 2021-06-01 | 华景微纳科技(苏州)有限公司 | Desiccant product with air partition |
-
2015
- 2015-12-29 CN CN201521113696.5U patent/CN205446833U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302835A (en) * | 2020-11-11 | 2021-02-02 | 江西昌河汽车有限责任公司 | Integrated carbon tank |
| CN112302835B (en) * | 2020-11-11 | 2021-09-28 | 江西昌河汽车有限责任公司 | Integrated carbon tank |
| CN112870928A (en) * | 2021-03-18 | 2021-06-01 | 华景微纳科技(苏州)有限公司 | High-permeability drying agent product with air partition |
| CN112870927A (en) * | 2021-03-18 | 2021-06-01 | 华景微纳科技(苏州)有限公司 | Desiccant product with air partition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 88, Fuyou Road, huoqiao, Guangling Economic Development Zone, Yangzhou, Jiangsu 225104 Patentee after: Yangzhou Huaguang New Material Co.,Ltd. Address before: 225014 No. 88, Fuyou Road, huoqiao Town, Guangling District, Yangzhou City, Jiangsu Province Patentee before: YANGZHOU HUAGUANG RUBBER & PLASTIC NEW MATERIAL Co.,Ltd. |