CN206257323U - Suitable for the pressure-retaining valve apparatus of pressure oil tank - Google Patents
Suitable for the pressure-retaining valve apparatus of pressure oil tank Download PDFInfo
- Publication number
- CN206257323U CN206257323U CN201620762003.3U CN201620762003U CN206257323U CN 206257323 U CN206257323 U CN 206257323U CN 201620762003 U CN201620762003 U CN 201620762003U CN 206257323 U CN206257323 U CN 206257323U
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- pressure
- valve block
- fuel tank
- canister
- guiding
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Abstract
The utility model is related to a kind of pressure-retaining valve apparatus suitable for pressure oil tank, include device body, fuel tank guiding room is provided with device body, the side of fuel tank guiding room is provided with fuel tank joint, fuel tank guiding room lower section is provided with canister guiding room, canister joint is provided with below canister guiding room, fuel tank guiding interior is provided with valve block component, and canister guiding interior is provided with lower disc component.When pressurized fuel case positive pressure pressure exceedes limitation, valve block is made to open.When less than limitation, valve block can be made to be automatically switched off by pneumatic structure.When pressurized fuel case negative pressure pressure exceedes limitation, valve block is made to open；During less than limitation, valve block is automatically switched off.When pressure oil tank needs to refuel, magnetic valve function-driven this valve can be coordinated so that the oil gas of fuel tank will not outward be overflowed by oil filler, meet the requirement of Abgasgesetz.
Description
Technical field
The utility model is related to a kind of valve, more particularly to a kind of pressure-retaining valve apparatus suitable for pressure oil tank.
Background technology
From the point of view of with existing auto industry, with the development of national Abgasgesetz and fuel oil regulation, for applying pressure combustion
The automobile of fuel tank (such as automobile of hybrid vehicle or installation automatic start-stop system), environmental requirement more and more higher.It is idle
When fast, engine is in halted state.During this period, the fuel vapor in canister does not enter back into engine, and oil gas in fuel tank
Do not stop still to be flowed to canister so that fuel vapor is constantly accumulated in canister, causes emission problem.
Therefore, being discharged to reduce, a control valve is set between canister and fuel tank, for controlling fuel tank and canister
Between oil gas flowing, and fuel oil volatilization (reduction oil gas volatilization) is effectively reduced, while when fuel tank refuels, by electromagnetism
Valve function opens this valve, and oil gas when can make oiling will not leak.
But, the control valve of fuel oil flow of air between control fuel tank and canister is lacked at present, cause to implement still
Have that oil gas leaks or pressure negative pressure is excessive, it is impossible to normally use.
In view of above-mentioned defect, the design people is actively subject to research and innovation, a kind of suitable for pressure oil tank to found
Pressure-retaining valve apparatus, it is had more the value in industry.
Utility model content
In order to solve the above technical problems, the purpose of this utility model is to provide a kind of pressure retaining valve dress suitable for pressure oil tank
Put.
Pressure-retaining valve apparatus suitable for pressure oil tank of the present utility model, include device body, wherein：Described device sheet
Fuel tank guiding room is provided with body, the side of the fuel tank guiding room is provided with fuel tank joint, the fuel tank guiding
Room lower section is provided with canister guiding room, and canister joint is provided with below the canister guiding room, and the fuel tank guiding is indoor
Valve block component is provided with, the canister guiding interior is provided with lower disc component.
Further, the above-mentioned pressure-retaining valve apparatus suitable for pressure oil tank, wherein, the upper valve block component is included
Valve block body, the upper valve block body top is connected with master reset component, and the master reset component includes guiding bar, described to draw
Valve block body is connected with below guide rod, back-moving spring is arranged with the guiding bar, the lower end of the back-moving spring with it is upper
Valve block body is in contact.
Further, the above-mentioned pressure-retaining valve apparatus suitable for pressure oil tank, wherein, the lower section of the upper valve block body
It is provided with extension buffering ring.
Further, the above-mentioned pressure-retaining valve apparatus suitable for pressure oil tank, wherein, the lower disc component is included
Pedestal, is provided with lower disc body on the pedestal, some discharge orifices, the pedestal lower section are provided with the lower disc body
Secondary reset assembly is connected with, the secondary reset assembly is back-moving spring.
Further, the above-mentioned pressure-retaining valve apparatus suitable for pressure oil tank, wherein, the outside of the lower disc body
It is provided with buffering extension side, the thickness of the thickness more than lower disc body on the buffering extension side.
Further, the above-mentioned pressure-retaining valve apparatus suitable for pressure oil tank, wherein, the discharge orifice at least two
It is individual, equidistantly distribute each other.
Yet further, the above-mentioned pressure-retaining valve apparatus suitable for pressure oil tank, wherein, the discharge orifice is triangle
One or more in hole, slotted eye.
By such scheme, the utility model at least has advantages below：
1st, when pressurized fuel case positive pressure pressure exceedes limitation, valve block is made to open.When less than limitation, can be by pneumatic knot
Structure, makes valve block be automatically switched off.
2nd, when pressurized fuel case negative pressure pressure exceedes limitation, valve block is made to open；During less than limitation, valve block is automatically switched off.
3rd, when pressure oil tank needs to refuel, magnetic valve function-driven this valve can be coordinated so that the oil gas of fuel tank will not lead to
Cross oil filler to overflow outward, meet the requirement of Abgasgesetz.
4th, simple structure, it is easy to which maintenance is used.
5th, fuel oil flow of air between fuel tank and canister can be effectively controlled, and large-scale redevelopment need not be carried out, you can be real
Existing general connection.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand skill of the present utility model
Art means, and being practiced according to the content of specification, with preferred embodiment of the present utility model and coordinate accompanying drawing detailed below
Describe in detail bright as after.
Brief description of the drawings
Fig. 1 applies to the overall structure diagram of the pressure-retaining valve apparatus of pressure oil tank.
Fig. 2 is the unlatching schematic diagram of lower disc body.
Fig. 3 is the unlatching schematic diagram of upper valve block body.
The implication of each reference is as follows in figure.
The fuel tank of 1 device body 2 guides room
The canister of 3 fuel tank joint 4 guides room
Valve block body on 5 canister joints 6
The 7 guiding back-moving springs of bar 8
9 extend the pedestal of buffering ring 10
The discharge orifice of 11 lower disc body 12
13 buffering extension sides
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to scope of the present utility model.
Such as the pressure-retaining valve apparatus suitable for pressure oil tank of Fig. 1 to 3, device body 1 is included, its is unusual to be in
In：Fuel tank guiding room 2 is provided with the device body 1 of use, the side of fuel tank guiding room 2 is provided with fuel tank joint
3, and the lower section of fuel tank guiding room 2 is provided with canister guiding room 4.Meanwhile, the lower section of canister guiding room 4 is provided with canister joint 5,
Valve block component is provided with fuel tank guiding room 2, canister guiding is provided with lower disc component in room 4.
From the point of view of the preferably implementation method of the utility model one, the upper valve block component that the utility model is used is included
Valve block body 6.Simultaneously, it is contemplated that needed using resetting, it is connected with master reset component in the top of upper valve block body 6.The master of use
Reset assembly includes guiding bar 7, guides the lower section of bar 7 to be connected with valve block body 6, and back-moving spring is arranged with guiding bar 7
8, the lower end of back-moving spring 8 is in contact with upper valve block body 6.Meanwhile, the lower section of upper valve block body 6 is provided with extension buffering ring
9.It is corresponding to be, pedestal 10 is included using lower disc component, lower disc body 11 is installed on pedestal 10.Also,
Some discharge orifices 12 are provided with lower disc body 11, the lower section of pedestal 10 is connected with secondary reset assembly, and secondary reset assembly is reset
Spring 8.
From the point of view of further, in order to effectively lift necessary air-tightness during use, the outside of lower disc body 11 is provided with
Buffering extension side 13, the thickness of the thickness more than lower disc body 11 on buffering extension side 13.
Simultaneously, it is contemplated that play necessary pressure balance during use, excessive impact, the discharge orifice of use are not resulted in
12 at least two, equidistantly distribute each other.Certainly, it is contemplated that special applications, meet air pressure to match somebody with somebody by the difference of stroke
Put needs, discharge orifice 12 can be one or more in tri-angle-holed, slotted eye.
Operation principle of the present utility model is as follows：
The effect of pressure-retaining valve apparatus essentially consists in the setting pressure difference maintained between fuel tank and outside atmosphere, when pressure difference reaches
During to setting value, the upper and lower two valve block bodies in valve are closed by the control of back-moving spring 8, make fuel tank and carbon
Tank isolation is come.
As shown in figure 1, when air pressure is higher than canister air pressure in fuel tank, pressure difference is for just.Now, the high pressure gram in fuel tank
The spring force of valve block is taken, makes lower disc be opened.At the same time, fuel tank interior air-flow starts to leak, when lower disc body 11
Open to after maximum position, air-flow remains to be outflowed by two discharge orifices 12 on lower disc body 11, until with canister air pressure
Pressure difference reaches initial set value, and be re-closing off on top on lower disc body 11 by back-moving spring 8.
As shown in Fig. 2 when air pressure is less than canister air pressure in fuel tank, now pressure difference is negative.Gas high pressure gram in canister
The spring force of valve block on clothes, upper valve block is opened.Afterwards, canister air-flow enter fuel tank in, until with air pressure pressure in fuel tank
Difference reaches initial set value, and back-moving spring 8 will be pushed away under upper valve block and is re-closing off.
(engine is closed in parking), opens solenoid valve function, valve block body 6 in opening when needing to refuel.Thus, this
Gas in sample fuel tank can discharge (no matter malleation negative pressure).So, open the fuel tank cap period of the day from 11 p.m. to 1 a.m and do not have oil gas out, also not
The situation (such as negative pressure does not discharge) of fuel tank cap of not opening occurs.Coordinate the use of vavuum pump etc., when can also make oiling, open
Valve block, allows pumping gas.When so refueling, oil gas will not be discharged from oil filler, reduce exhaust of oil.
Be can be seen that by above-mentioned character express and with reference to accompanying drawing using after the utility model, gather around and have the following advantages：
1st, when pressurized fuel case positive pressure pressure exceedes limitation, valve block is made to open.When less than limitation, can be by pneumatic knot
Structure, makes valve block be automatically switched off.
2nd, when pressurized fuel case negative pressure pressure exceedes limitation, valve block is made to open；During less than limitation, valve block is automatically switched off.
3rd, when pressure oil tank needs to refuel, magnetic valve function-driven this valve can be coordinated so that the oil gas of fuel tank will not lead to
Cross oil filler to overflow outward, meet the requirement of Abgasgesetz.
4th, simple structure, it is easy to which maintenance is used.
5th, fuel oil flow of air between fuel tank and canister can be effectively controlled, and large-scale redevelopment need not be carried out, you can be real
Existing general connection.
The above is only preferred embodiment of the present utility model, is not limited to the utility model, it is noted that
For those skilled in the art, on the premise of the utility model know-why is not departed from, can also do
Go out some improvement and modification, these are improved and modification also should be regarded as protection domain of the present utility model.
Claims (7)
1., suitable for the pressure-retaining valve apparatus of pressure oil tank, device body (1) is included, it is characterised in that：Described device body (1)
On be provided with fuel tank guiding room (2), the side of fuel tank guiding room (2) is provided with fuel tank joint (3), the fuel oil
Case guiding room (2) lower section is provided with canister guiding room (4), and canister joint (5) is provided with below canister guiding room (4),
Valve block component is provided with fuel tank guiding room (2), lower disc component is provided with canister guiding room (4).
2. pressure-retaining valve apparatus suitable for pressure oil tank according to claim 1, it is characterised in that：The upper valve block component
Valve block body (6) is included, upper valve block body (6) top is connected with master reset component, and the master reset component includes
There is guiding bar (7), valve block body (6) is connected with below guiding bar (7), reset is arranged with guiding bar (7)
Spring (8), the lower end of the back-moving spring (8) is in contact with upper valve block body (6).
3. pressure-retaining valve apparatus suitable for pressure oil tank according to claim 2, it is characterised in that：The upper valve block body
(6) extension buffering ring (9) is provided with below.
4. pressure-retaining valve apparatus suitable for pressure oil tank according to claim 1, it is characterised in that：The lower disc component
Pedestal (10) is included, lower disc body (11) is installed on the pedestal (10), be provided with the lower disc body (11)
Some discharge orifices (12), pedestal (10) lower section is connected with secondary reset assembly, and the secondary reset assembly is back-moving spring (8).
5. pressure-retaining valve apparatus suitable for pressure oil tank according to claim 4, it is characterised in that：The lower disc body
(11) buffering extension side (13), the thickness of the thickness more than lower disc body (11) of buffering extension side (13) are provided with the outside of
Degree.
6. pressure-retaining valve apparatus suitable for pressure oil tank according to claim 4, it is characterised in that：The discharge orifice (12)
At least two, equidistantly distribute each other.
7. pressure-retaining valve apparatus suitable for pressure oil tank according to claim 4, it is characterised in that：The discharge orifice (12)
For one or more in tri-angle-holed, slotted eye.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620762003.3U CN206257323U (en) | 2016-07-20 | 2016-07-20 | Suitable for the pressure-retaining valve apparatus of pressure oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620762003.3U CN206257323U (en) | 2016-07-20 | 2016-07-20 | Suitable for the pressure-retaining valve apparatus of pressure oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206257323U true CN206257323U (en) | 2017-06-16 |
Family
ID=59022097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620762003.3U Active CN206257323U (en) | 2016-07-20 | 2016-07-20 | Suitable for the pressure-retaining valve apparatus of pressure oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206257323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195375A (en) * | 2016-07-20 | 2016-12-07 | 郦强 | Pressure oil tank pressure-retaining valve apparatus |
-
2016
- 2016-07-20 CN CN201620762003.3U patent/CN206257323U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195375A (en) * | 2016-07-20 | 2016-12-07 | 郦强 | Pressure oil tank pressure-retaining valve apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221202 Address after: 215000 unit a, floor 1, plant 6, Xinxing Industrial Building, No. 78, Xinglin street, Suzhou Industrial Park, Suzhou, Jiangsu Province Patentee after: SUZHOU ENDUFA AUTOMOBILE SYSTEM CO.,LTD. Address before: 215000 room 221, two building, B3 building, East Fang Chuang garden, 18 Jin Fang Road, Suzhou Industrial Park, Jiangsu, China Patentee before: SUZHOU GUOYAN AUTOMOBILE SYSTEM CO.,LTD. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215000 unit a, 1st floor, No.6 factory building, Xinxing Industrial Square, 78 Xinglin street, Suzhou Industrial Park, Jiangsu Province Patentee after: Suzhou Endofa Automotive Systems Co.,Ltd. Address before: 215000 unit a, floor 1, plant 6, Xinxing Industrial Building, No. 78, Xinglin street, Suzhou Industrial Park, Suzhou, Jiangsu Province Patentee before: SUZHOU ENDUFA AUTOMOBILE SYSTEM CO.,LTD. |