CN107606179A - The high pressure resistant fuel tank isolation valve of car of new model - Google Patents
The high pressure resistant fuel tank isolation valve of car of new model Download PDFInfo
- Publication number
- CN107606179A CN107606179A CN201710979954.5A CN201710979954A CN107606179A CN 107606179 A CN107606179 A CN 107606179A CN 201710979954 A CN201710979954 A CN 201710979954A CN 107606179 A CN107606179 A CN 107606179A
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- Prior art keywords
- spring
- fuel tank
- isolation valve
- valve
- high pressure
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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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- 239000002828 fuel tank Substances 0.000 title claims abstract description 49
- 238000002955 isolation Methods 0.000 title claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 abstract description 3
- 229920003023 plastic Polymers 0.000 abstract description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 8
- 229930195733 hydrocarbon Natural products 0.000 description 8
- 150000002430 hydrocarbons Chemical class 0.000 description 8
- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 230000005611 electricity Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The present invention relates to a kind of high pressure resistant fuel tank isolation valve of car of new model, it is characterized in that, the fuel tank isolation valve includes isolation valve body, spring assembly, core assembly, support bar, restrictor ring, sealing ring and magnetic valve, the spring assembly, core assembly, restrictor ring, support bar, sealing ring are arranged in isolation valve body, and magnetic valve is arranged on the end of isolation valve body.The technical scheme simple and ingenious structure, realize high pressure gas, negative pressure tonifying Qi using the less part such as working of plastics, spring, magnetic valve and rubber parts, the complicated function such as exhaust of refueling；The requirement of different customers can be met by the diameter and spring sizes of adjustment hole；Such a structure isolating valve only uses a magnetic valve, has saved electric energy；Such a structure isolating valve small volume, is not take up chassis space.
Description
Technical field
The present invention relates to a kind of isolating valve, and in particular to a kind of high pressure resistant fuel tank isolation valve of car of new model, belongs to plastics combustion
Oiltank structure equipment technical field.
Background technology
Hydrocarbon molecules constantly enter canister after gasoline volatilization in fuel tank, and by the charcoal absorption in canister, if
Conventional vehicle, during running car, the hydrocarbon molecules in canister are just desorbed into engine combustion by the negative pressure that engine is formed, without
Make hydrocarbon molecules cumulative in canister, and produce and overflow the external world from canister atmospheric air port, pollute the risk of environment.If
" plug-in oil electricity hybrid vehicle ", if engine does not work for a long time, then the canister of fuel system just cannot get engine
Desorption, the hydrocarbon molecules after gasoline volatilization just constantly enter canister, after the activated carbon in canister is to hydrocarbon molecules adsorption saturation, just
Extraneous, pollution environment can be overflowed from canister atmospheric air port；To avoid this risk, it is necessary to increase " fuel tank between fuel tank and canister
Isolating valve ", its major function are：When automobile is travelled or stopped using battery-driven motor, " fuel tank isolation valve " is usual
In sealing closed mode, the hydrocarbon molecules in fuel tank are prevented to enter canister, but because fuel tank is sealed, fuel tank can not
Exhaust, when tank temperature rise or fuel oil acutely rock, the pressure in fuel tank just raises, when tank internal pressure is excessive（About
During 35kPa）, high pressure has exceeded the tolerance range of fuel tank, is security consideration, and setting " fuel tank isolation valve " is just beaten at this pressure
Begin to rehearse gas, and when fuel tank is cooled to about -15kPa, low-pressure has exceeded the tolerance range of fuel tank, is security consideration, setting " oil
Case isolating valve " just opens exhaust at this pressure；Exhausted in automobile battery power, when being worked using engine, " fuel tank is isolated
Valve " opens exhaust；, when automobile fuel filler, " fuel tank isolation valve " is opened, and is made smoothly to be vented from canister during oiling, is met that oiling is suitable
Smooth property；Another technical background is high in fuel tank exactly when " fuel tank isolation valve " reaches about 35kPa and opened in tank pressure
The hydrocarbon vapor of flow needs to discharge from valve " FLVV ", about 200 liters/min, and " FLVV " is machinery valve, too high flow
Caused suction, FLVV valve element float can be pushed up and close FLVV, cause fuel tank can not continue to be vented, " fuel tank
Isolating valve " will avoid this problem.
The content of the invention
The present invention is exactly for technical problem present in prior art, there is provided a kind of high pressure resistant fuel tank isolation of car of new model
Valve, the technical scheme overall construction design is ingenious compact, meets the needs of " plug-in oil electricity hybrid vehicle " fuel system.
To achieve these goals, technical scheme is as follows, a kind of high pressure resistant fuel tank isolation valve of car of new model, its
It is characterised by, the fuel tank isolation valve includes isolation valve body, spring assembly, core assembly, support bar, restrictor ring, sealing ring
And magnetic valve, the spring assembly, core assembly, restrictor ring, support bar, sealing ring are arranged in isolation valve body, electricity
Magnet valve is arranged on the end of isolation valve body.
As a modification of the present invention, the spring assembly includes the first spring, second spring and the 3rd spring, institute
The first spring to be stated to be arranged on support bar, the second spring is arranged between support bar and the first sealed valve core, and the described 3rd
Spring is arranged in isolation valve body.
As a modification of the present invention, the core assembly includes the first sealed valve core and the second sealed valve core, described
Be welded and fixed together between first sealed valve core and support bar by contact surface, second sealed valve core by support bar and
Second spring is positioned.
As a modification of the present invention, second sealed valve core is arranged to pyramidal structure, and the pyramidal structure contributes to
After malleation opens exhaust, the second sealed valve core recovers centering positioning during sealing state.
As a modification of the present invention, passage is provided with the support bar, the passage is used for isolating valve malleation
Open exhaust passage during exhaust.
As a modification of the present invention, cylindrical boss, the second spring are provided with first sealed valve core
Positioned by cylindrical boss.By the cylinder boss on the first sealed valve core, it ensure that second spring in assembling and just
Centering when pressure opens exhaust with the second sealed valve core positions.
As a modification of the present invention, the body interior is provided with body step.Body step is used for restrictor ring
Lay and position.
As a modification of the present invention, exhaust passage is provided with the restrictor ring.
Relative to prior art, the invention has the advantages that, 1）It is compact overall structure, ingenious, effectively reduce hydrocarbonization
Compound discharges, environmental protection；Reduce the fuel consumption during automobile use；Ensure fuel oil quality, prevent fuel oil weathering；2）Should
Technical scheme simple and ingenious structure, high pressure is realized using the less part such as working of plastics, spring, magnetic valve and rubber parts
Gas, negative pressure tonifying Qi, the complicated function such as exhaust of refueling；Different customers can be met by the diameter and spring sizes of adjustment hole
Requirement；Such a structure isolating valve only uses a magnetic valve, has saved electric energy；Such a structure isolating valve small volume, is not take up
Chassis space；3）The second sealed valve core is arranged to pyramidal structure in the program, after the pyramidal structure contributes to malleation to open exhaust,
Second sealed valve core recovers centering positioning during sealing state；Be provided with passage on the support bar, the passage be used for every
Exhaust passage when being vented is opened from valve malleation；4）It is provided with cylindrical boss in the program on first sealed valve core, described
Two springs are positioned by cylindrical boss.By the cylinder boss on the first sealed valve core, it ensure that second spring is filling
Positioned with centering when opening exhaust with malleation with the second sealed valve core；5）The program further increases the security of fuel tank,
Reduce hydrocarbon emission during plug-in oil electricity hybrid vehicle use, alleviate the load of canister, meet what is refueled
Smoothness.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is Fig. 1 sectional views；
Fig. 3 is core assembly, spring assembly assembling structure schematic diagram；
Fig. 4-Fig. 8 is course of work view；
Fig. 9 is that body step part blocks restrictor ring exhaust passage view；
In figure：1st, insert body, 2, spring assembly, 3, core assembly, 4, support bar, 5, restrictor ring, 6, sealing ring, 7, electromagnetism
Valve, the 21, first spring, 22, second spring, the 23, the 3rd spring, the 31, first sealed valve core, the 32, second sealed valve core.8th, weld
Face, 9, cylinder boss, 41, support bar passage, 11, body step.
Embodiment：
In order to further enhance the appreciation and understanding of the invention, it is further described the present invention with specific implementation below in conjunction with the accompanying drawings.
Embodiment 1：Referring to Fig. 1, a kind of high pressure resistant fuel tank isolation valve of car of new model, the fuel tank isolation valve includes isolating valve
Body 1, spring assembly 2, core assembly 3, support bar 4, restrictor ring 5, sealing ring 6 and magnetic valve 7, the spring assembly, valve
Core assembly, restrictor ring, support bar, sealing ring are arranged in isolation valve body, and magnetic valve is arranged on the end of isolation valve body,
In the program, the spring assembly includes the first spring 21, the spring 23 of second spring 22 and the 3rd, and first spring is set
On support bar, the second spring is arranged between support bar and the first sealed valve core 31, the 3rd spring be arranged on every
From in valve body, the core assembly includes the first sealed valve core 31 and the second sealed valve core 32, first sealed valve core and
It is welded and fixed together between support bar by contact surface, second sealed valve core is determined by support bar and second spring
Position, second sealed valve core is arranged to pyramidal structure, is provided with passage on the support bar, on first sealed valve core
Cylindrical boss is provided with, the second spring is positioned by cylindrical boss, and the body interior is provided with this object table
Rank, exhaust passage is provided with the restrictor ring.Referring to Fig. 3, pass through the weldering of contact surface 8 between sealed valve core 31 and support bar 4
Connect and be fixed together.Fig. 3 dashed circles marked position is the solder side of the first sealed valve core and support bar.Second spring 22 is located all the time
In compressive state, positioned by the cylinder boss 9 of the first sealed valve core 31.Second sealed valve core 32 passes through its cone structure
Positioned respectively with support bar 4 and second spring 22.Second sealed valve core 32 only opens exhaust in a high voltage state, remaining
Closed mode is under part.The circumferential passage in support bar root constitutes the passage of high pressure gas, the basis of second spring 22
Pressure during high pressure gas, such as 35kPa designs.In the first sealed valve core 1 follows support bar reciprocating movement, Ke Yishi
The oiling exhaust of existing isolating valve and negative pressure gas compensation function.
Operation principle：A kind of high pressure resistant fuel tank isolation valve of car of new model, the isolating valve course of work is as follows,
Referring to Fig. 4, nature, magnetic valve is not powered on, and all springs are all in compressive state, due to now " the first spring
The elastic force of 21 " settings is more than " elastic force of the 3rd spring 23 ", valve, which is in, closes sealing state, at tank port and canister port
In isolation；
Referring to Fig. 5, high pressure open mode, magnetic valve is not powered on, and " second spring 22 " is by fuel tank internal high-pressure opening（About
35kPA）, tank port and canister port be in open mode, and the pressure in fuel tank can be discharged into the external world through canister；
Referring to Fig. 6, negative pressure open mode, magnetic valve is not powered on, and " the 3rd spring 23 " is opened by fuel tank internal negative pressure（About-
15kPA）, i.e., " elastic force and fuel tank negative pressure of the 3rd spring 23 " are more than " elastic force of the first spring 21 ", tank port and canister port
Negative pressure in open mode, fuel tank can discharge through canister；
Referring to Fig. 7, Fig. 9, oiling open mode, solenoid valves, by electromagnetic force, mechanism in whole " body " outwards by
Power is moved, and magnetic valve is opened, and restrictor ring stress is closed, and " the first spring 21 ", now " restrictor ring is " in fuel tank elevated pressures for compression
Under, be still attached to " body " and step 11 on, " restrictor ring " and on exhaust passage part blocked by the step of " body ", capacity
It is not very big, avoids FLVV due to being closed by big flow, hinder the risk of exhaust, tank port and canister port are in
Open mode, the pressure in fuel tank can be discharged into the external world through canister；
Referring to Fig. 8, when the pressure in fuel tank drops to certain value, " elastic force of the 3rd spring 23 " is more than tank pressure, by " current limliting
Ring " releases step, the whole exhaust passage can exhaust of " restrictor ring ", the pressure release of fuel tank is accelerated, simultaneously because fuel tank pressure
Power, FLVV closing will not be also caused, now, magnetic valve is opened, and restrictor ring is opened.
It should be noted that above-described embodiment, is not used for limiting protection scope of the present invention, on the basis of above-mentioned technical proposal
Upper made equivalents or replacement each fall within the scope that the claims in the present invention are protected.
Claims (8)
1. a kind of high pressure resistant fuel tank isolation valve of car of new model, it is characterised in that the fuel tank isolation valve includes isolation valve body, bullet
Spring component, core assembly, support bar, restrictor ring, sealing ring and magnetic valve, the spring assembly, core assembly, restrictor ring,
Support bar, sealing ring are arranged in isolation valve body, and magnetic valve is arranged on the end of isolation valve body.
2. the high pressure resistant fuel tank isolation valve of car of new model according to claim 1, it is characterised in that the spring assembly includes
First spring, second spring and the 3rd spring, first spring are arranged on support bar, and the second spring is arranged on branch
Between strut and the first sealed valve core, the 3rd spring is arranged in isolation valve body.
3. the high pressure resistant fuel tank isolation valve of car of new model according to claim 2, it is characterised in that the core assembly includes
First sealed valve core and the second sealed valve core, one is weldingly fixed on by contact surface between first sealed valve core and support bar
Rise, second sealed valve core is positioned by support bar and second spring.
4. the high pressure resistant fuel tank isolation valve of car of new model according to claim 3, it is characterised in that second sealed valve core
It is arranged to pyramidal structure.
5. the high pressure resistant fuel tank isolation valve of car of new model according to claim 4, it is characterised in that set on the support bar
There is passage.
6. the high pressure resistant fuel tank isolation valve of car of new model according to claim 5, it is characterised in that first sealed valve core
On be provided with cylindrical boss, the second spring is positioned by cylindrical boss.
7. the high pressure resistant fuel tank isolation valve of car of new model according to claim 6, it is characterised in that the body interior is set
There is body step.
8. the high pressure resistant fuel tank isolation valve of car of new model according to claim 7, it is characterised in that set on the restrictor ring
There is exhaust passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710979954.5A CN107606179B (en) | 2017-10-19 | 2017-10-19 | Novel high-pressure resistant oil tank isolation valve for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710979954.5A CN107606179B (en) | 2017-10-19 | 2017-10-19 | Novel high-pressure resistant oil tank isolation valve for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107606179A true CN107606179A (en) | 2018-01-19 |
| CN107606179B CN107606179B (en) | 2024-05-31 |
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ID=61077659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710979954.5A Active CN107606179B (en) | 2017-10-19 | 2017-10-19 | Novel high-pressure resistant oil tank isolation valve for automobile |
Country Status (1)
| Country | Link |
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| CN (1) | CN107606179B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209685A (en) * | 2018-08-24 | 2019-01-15 | 亚普汽车部件股份有限公司 | A kind of new electronic control high-pressure fuel oil system |
| CN109611590A (en) * | 2019-01-24 | 2019-04-12 | 左强 | A kind of novel fuel tank isolation valve |
| CN112267958A (en) * | 2020-11-14 | 2021-01-26 | 德安福(天津)汽车技术有限公司 | Fuel tank isolation valve and use method thereof |
| CN112576417A (en) * | 2020-12-09 | 2021-03-30 | 亚普汽车部件股份有限公司 | Electric control valve, electric control valve assembly, electric control fuel system and filling control method |
| CN112594096A (en) * | 2020-12-09 | 2021-04-02 | 亚普汽车部件股份有限公司 | Electric control valve, electric control fuel system and control method |
| CN113931769A (en) * | 2021-10-13 | 2022-01-14 | 亚普汽车部件股份有限公司 | Integrated electric control assembly of fuel system and fuel system control method |
| CN114087371A (en) * | 2021-10-18 | 2022-02-25 | 苏州恩都法汽车***有限公司 | Oil tank isolating valve |
| CN114673609A (en) * | 2021-10-18 | 2022-06-28 | 苏州恩都法汽车***有限公司 | Oil tank isolation valve control system |
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| CN207278895U (en) * | 2017-10-19 | 2018-04-27 | 亚普汽车部件股份有限公司 | The high pressure resistant fuel tank isolation valve of car of new model |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR19980056761A (en) * | 1996-12-30 | 1998-09-25 | 박병재 | Over Wheel Limiter for Evaporative Gas Control |
| JP2002317707A (en) * | 2001-04-24 | 2002-10-31 | Toyota Motor Corp | Fuel vapor control device |
| CN103328805A (en) * | 2011-01-21 | 2013-09-25 | 伊顿公司 | Isolation valve with fast depressurization for high-pressure fuel tank |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209685A (en) * | 2018-08-24 | 2019-01-15 | 亚普汽车部件股份有限公司 | A kind of new electronic control high-pressure fuel oil system |
| CN109611590A (en) * | 2019-01-24 | 2019-04-12 | 左强 | A kind of novel fuel tank isolation valve |
| CN109611590B (en) * | 2019-01-24 | 2023-11-28 | 安徽尼威汽车动力***有限公司 | Oil tank isolation valve |
| CN112267958A (en) * | 2020-11-14 | 2021-01-26 | 德安福(天津)汽车技术有限公司 | Fuel tank isolation valve and use method thereof |
| CN112576417A (en) * | 2020-12-09 | 2021-03-30 | 亚普汽车部件股份有限公司 | Electric control valve, electric control valve assembly, electric control fuel system and filling control method |
| CN112594096A (en) * | 2020-12-09 | 2021-04-02 | 亚普汽车部件股份有限公司 | Electric control valve, electric control fuel system and control method |
| CN113931769A (en) * | 2021-10-13 | 2022-01-14 | 亚普汽车部件股份有限公司 | Integrated electric control assembly of fuel system and fuel system control method |
| CN114087371A (en) * | 2021-10-18 | 2022-02-25 | 苏州恩都法汽车***有限公司 | Oil tank isolating valve |
| CN114673609A (en) * | 2021-10-18 | 2022-06-28 | 苏州恩都法汽车***有限公司 | Oil tank isolation valve control system |
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| CN107606179B (en) | 2024-05-31 |
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