CN205651962U - Fuel liquid level valve gear - Google Patents
Fuel liquid level valve gear Download PDFInfo
- Publication number
- CN205651962U CN205651962U CN201620466138.5U CN201620466138U CN205651962U CN 205651962 U CN205651962 U CN 205651962U CN 201620466138 U CN201620466138 U CN 201620466138U CN 205651962 U CN205651962 U CN 205651962U
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- CN
- China
- Prior art keywords
- fuel
- liquid level
- valve gear
- guard ring
- level valve
- 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.)
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model provides a fuel liquid level valve gear, it includes: the upper shield, with this upper shield fixed connection's unsteady protective shroud, fix diaphragm, diaphragm backup pad in this upper shield, fix float fuel recognizer in the protective shroud, refuel superficially and the operation loss is floated, wherein, refuel to float and float equal elastic fixation in the protective shroud that floats with the operation loss, the diaphragm backup pad is fixed between diaphragm and fuel recognizer. The utility model discloses a with three control valve integration in these fuel liquid level valve gear of FLV, GRV and FMV, this fuel liquid level valve gear accurate control fuel volume read -out for the liquid level error of refueling is less than 1mm, the utility model discloses the various angles of vehicle are travel or even the state of overturning can seal inside the oil tank by in time effectual fuel vapour with producing down, the utility model discloses according to the actual state, the accurate fuel vapour volume of accessing to the carbon tank of adjusting improves the life of carbon tank, lower hydrocarbon (HC) permeance property and reduce cost.
Description
Technical field
This utility model belongs to automotive fuel oil system, particularly relates to a kind of fuel liquid level valve gear.
Background technology
Environmental pollution is on the rise, and reduces the exhaust emission of vehicle, has improved ambient air quality
Become the most instant problem.The EVAP exhaust emission of vehicle is mainly derived from three
Aspect: one is the discharge vaporization produced of taking a breath round the clock；Two is the evaporation row of the infiltration generation of material
Put；Three is the discharge vaporization produced in vehicle refueling process.Generally fuel system is by combustion
Oil liquid level limit valve FLV (Fuel Limit Valve) control the amount of fuel in refueling process and
Its steam；By under Tipping valve GRV (Grade Rollover Valve) protection overturning state
Fuel oil and steam can be sealed in fuel tank internal；By traffic management valve FMV (Flow
Management Valve) control refueling process leads to the fuel vapor amount of canister, reduce and steam
Send a manuscript to the compositor and put.
But the error that FLV controls volume read-out is bigger；GRV controls the various transport condition of vehicle
Under ageing poor；FMV also can not accurately control to lead to the vapor flow rate of canister, increases
Canister volume, reduces the service life of canister.
Therefore, it is necessary to design a kind of new fuel liquid level valve gear.
Utility model content
The purpose of this utility model is to provide a kind of integrated FLV, GRV and FMV tri-sections control
That valve is integrated in one, Hydrocarbon (HC) permeance property, the fuel liquid level of reduction cost
Valve gear.
This utility model provides a kind of fuel liquid level valve gear, comprising: upper cover and this upper cover
Fix floating guard ring, the diaphragm being fixed in this upper cover, the diaphragm support plate of connection, be fixed on
Fuel oil evaluator in described floating guard ring, add oil float and running losses floats, wherein, institute
State and add oil float and running losses floats equal flexible fastening in floating guard ring；Described diaphragm support plate is solid
It is scheduled between diaphragm and fuel oil evaluator.
Preferably, described diaphragm support plate is provided with through hole；Described fuel oil evaluator is provided with and is connected to
Protuberance in this through hole.
Preferably, also include connecting this upper cover and the welding ring of floating guard ring, being positioned at upper cover and weldering
Sealing ring between T-Ring.
Preferably, also including the snap ring that this upper cover is fixing, described diaphragm is fixed by this snap ring.
Preferably, described upper cover includes: be positioned at the canister that the cover body of centre is connected with this cover body
Oil filler pipe joint that interface is connected with this cover body and the blow vent being connected with this cover body, its
In, described snap ring is fixed on the inside of this cover body.
Preferably, described floating guard ring includes: be positioned at the floatation bodies outside this floating guard ring,
It is positioned at the bottom bottom this floating guard ring, is positioned at this floating guard ring inside and is connected with floatation bodies
The first dividing plate, be positioned at this floating guard ring internal and be connected with described first dividing plate second every
Plate and the 3rd dividing plate being positioned at inside this floating guard ring and being connected with described bottom.
Preferably, described fuel oil evaluator be fixed on described first dividing plate and diaphragm support plate it
Between.
Preferably, described oiling trim in the bottom of floating guard ring and first every between.
Preferably, described running losses floats and is arranged on second partition and encloses in the space set.
Preferably, described running losses trim in the second partition of floating guard ring and the 3rd dividing plate it
Between.
This utility model is by being integrated in this fuel oil liquid by tri-sections of control valves of FLV, GRV and FMV
Position valve gear, this fuel liquid level valve gear accurately controls fuel oil refueling amount so that add oil level high
Degree error is less than 1mm；The various angle of this utility model vehicle travels can under even overturning state
Timely and effectively the fuel vapor of generation is sealed in fuel tank internal；This utility model is according to reality
Situation, accurately the fuel vapor amount of canister is led in regulation, improves service life of canister, relatively low
Hydrocarbon (HC) permeance property and reduce cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model fuel liquid level valve gear；
Fig. 2 is the top view of fuel liquid level valve gear shown in Fig. 1；
Fig. 3 is the upward view of fuel liquid level valve gear shown in Fig. 1；
Fig. 4 is fuel liquid level valve gear sectional view at A-A shown in Fig. 3.
Figure number illustrates:
1-upper cover, 11-cover body, 12-canister interface, 13-oil filler pipe joint, 14-blow vent,
2-floating guard ring, 21-floatation bodies, 22-bottom, 23-the first dividing plate,
24-second partition, 25-the 3rd dividing plate, 26-the first spring, 27-the second spring,
3-welding ring, 4-sealing ring, 5-snap ring, 6-diaphragm, 7-diaphragm support plate,
8-fuel oil evaluator, 9-add oil float, 10-running losses floats.
Detailed description of the invention
This utility model provides a kind of fuel liquid level valve gear, and it limits for multifunction burning oil liquid level
Vapour-cycling management valve gear (MFLVV, Multi-Fuel Limit Vent Valve), this
Fuel liquid level valve gear is arranged between automobile canister and oil filling pipe.
Referring to shown in Fig. 1 to Fig. 4, this fuel liquid level valve gear includes: upper cover 1 and should
Upper cover 1 is fixed the floating guard ring 2 of connection, is connected this upper cover 1 and the welding ring of floating guard ring 2
3, sealing ring 4 between upper cover 1 and welding ring 3 and the fixing snap ring 5 of this upper cover 1,
It is fixed on the diaphragm 6 on this snap ring 5, supports the diaphragm support plate 7 of this diaphragm 6, be positioned at stream
Buret is managed the fuel oil evaluator 8 between valve 7 and floating guard ring 2, is positioned at floating guard ring 2
Add oil float 9 and the running losses that is fixed in this floating guard ring 2 floats 10.Wherein, diaphragm
Gripper shoe 7 is fixed between diaphragm 6 and fuel oil evaluator 8；Add oil float 9 and running losses floats
10 equal flexible fastenings are in floating guard ring 2.
The centre of diaphragm support plate 7 is provided with through hole 71；Fuel oil evaluator 8 is provided with and is connected to this
Protuberance 81 in through hole 71, this protuberance 81 is projected by the centre of this fuel oil evaluator 8
Formed.By controlling the pore size between through hole 71 and protuberance 81, reach accurately to control
Fuel vapor leads to the flow of canister, reduces canister volume, increases the service life of canister.
Add oil float 9 and running losses to float 10 be fuel oil buoy, be also the biography of fuel liquid level height
Induction device, add oil float 9 and running losses to float 10 be fuel liquid level detecting system.
This upper cover 1 is made of plastics, and upper cover 1 includes: is positioned at the cover body 11 of centre and is somebody's turn to do
Cover body 11 connect canister interface 12 be connected with this cover body 11 oil filler pipe joint 13, with
And the blow vent 14 being connected with this cover body 11.Wherein, snap ring 5 is fixed on this cover body 11
Internal.
Welding ring 3 is made up of high density polyethylene (HDPE)；Sealing ring 4 is made up of fluorubber；Diaphragm 6,
Add oil float 9 and running losses floats 10 and made by nylon material or rubber；Diaphragm support plate 7
Make by acetal plastic with fuel oil evaluator 8.
Floating guard ring 2 is also made of plastics, and it is generally cylindrical, floats with this in upper cover 1
Between dynamic guard ring 2, there is receiving space, snap ring 5, diaphragm 6, diaphragm support plate 7, fuel oil
Evaluator 8, add oil float 9 and running losses floats 10 and is respectively positioned in this receiving space.
Floating guard ring 2 includes: is positioned at the floatation bodies 21 outside this floating guard ring, is positioned at this
Bottom 22 bottom floating guard ring 2, be positioned at this floating guard ring 2 internal and with floatation bodies 21
The first dividing plate 23 of connecting, to be positioned at this floating guard ring 2 internal and be connected with the first dividing plate 23
Second partition 24 and be positioned at this floating guard ring 2 internal and be connected with bottom 22 the 3rd every
Plate 25, second partition 24 is in column.
Fuel oil evaluator 8 is fixed on the first dividing plate 23 and the diaphragm support plate 7 of floating guard ring 2
Between；Add oil float 9 to be fixed on the bottom 22 of floating guard ring 2 by the first spring 26, and
This adds oil float 9 between bottom 22 and first dividing plate 23 of floating guard ring 2；Running losses
Floating 10 are fixed on the 3rd dividing plate 25 of floating guard ring 2 by the second spring 27, and this fortune
Row loss floating 10 is arranged on second partition 24 and encloses in the space set, and this running losses floats 10
Between second partition 24 and the 3rd dividing plate 25.
In this utility model, diaphragm support plate 7 controls to lead in refueling process the combustion of canister
Oil vapour amount, it has traffic management valve (FMV, Flow Management Valve) function；
Fuel oil evaluator 8 turns over as Tipping valve (GRV, Grade Rollover Valve), its protection
Fuel oil and steam thereof under car state can be sealed in fuel tank internal；Add oil float 9 and running losses
Floating 10 all limit valve (FLV, Fuel Limit Valve) as fuel liquid level, are used for controlling
Amount of fuel in refueling process and steam thereof.
When this fuel liquid level valve gear is refueled by nozzle, add oil float 9 when the cross section of fuel oil is positioned at
During place, add oil float 9 and be in sealing state by the immixture of fuel oil and steam, cause fuel tank
Internal pressure sharply increases, and excites nozzle to jump rifle for the first time this moment.Between at regular intervals after,
Fuel tank internal and external pressure balance, can continue to refuel, and along with liquid level continues to rise, running losses floats
10 float seals, and tank internal pressure sharply increases again, excites nozzle second this moment
Secondary jumping rifle.This fuel liquid level valve gear adds oil float 9 by control and running losses float 10 weight
Amount, accurately control volume read-out number, within error is decreased to 1mm.
When vehicle is during normal traveling, adds oil float 9 by control and running losses floats
The pore size of 10, can accurately control fuel vapor and lead to the flow of canister, reduce canister
Volume, increases the service life of canister.That is, controlled by diaphragm support plate 7.
When vehicle travels at complex road condition, occur the when that various angle tilting.Add oil float 9,
Running losses float 10 and fuel oil evaluator 8 close in time so that vehicle under complex road condition,
Under the situation even overturned, fuel oil and Vapor Seal thereof are discharged at valve inner, minimizing steam,
Improve the canister life-span.
This utility model is by being integrated in this fuel oil liquid by tri-sections of control valves of FLV, GRV and FMV
Position valve gear, this fuel liquid level valve gear accurately controls fuel oil refueling amount so that add oil level high
Degree error is less than 1mm；The various angle of this utility model vehicle travels can under even overturning state
Timely and effectively the fuel vapor of generation is sealed in fuel tank internal；This utility model is according to reality
Situation, accurately the fuel vapor amount of canister is led in regulation, improves service life of canister, relatively low
Hydrocarbon (HC) permeance property and reduce cost.
Above specific embodiment of the utility model is described in detail, but content has been only this
The exemplary embodiments that utility model is created, it is impossible to be considered for limiting what this utility model was created
Practical range.All impartial changes made according to this utility model creation application range and improvement etc.,
Within all should still belonging to patent covering scope of the present utility model.
Claims (10)
1. a fuel liquid level valve gear, it is characterised in that: comprising: upper cover and this on
Cover is fixed the floating guard ring connected, the diaphragm being fixed in this upper cover, diaphragm support plate, is fixed
Fuel oil evaluator in described floating guard ring, add oil float and running losses floats, wherein,
Described add oil float and running losses floats equal flexible fastening in floating guard ring；Described diaphragm support plate
It is fixed between diaphragm and fuel oil evaluator.
Fuel liquid level valve gear the most according to claim 1, it is characterised in that: described
Diaphragm support plate is provided with through hole；Described fuel oil evaluator is provided be connected in this through hole prominent
Portion.
Fuel liquid level valve gear the most according to claim 1, it is characterised in that: also wrap
Include and connect this upper cover and the welding ring of floating guard ring, sealing between upper cover and welding ring
Circle.
Fuel liquid level valve gear the most according to claim 1, it is characterised in that: also wrap
Including the snap ring that this upper cover is fixing, described diaphragm is fixed by this snap ring.
Fuel liquid level valve gear the most according to claim 4, it is characterised in that: described
Upper cover includes: be positioned at canister interface and this cover body company that middle cover body is connected with this cover body
The oil filler pipe joint connect and the blow vent being connected with this cover body, wherein, described snap ring is fixed
Inside at this cover body.
Fuel liquid level valve gear the most according to claim 1, it is characterised in that: described
Floating guard ring includes: is positioned at the floatation bodies outside this floating guard ring, is positioned at the bottom of this floating guard ring
The bottom in portion, be positioned at this floating guard ring internal and be connected with floatation bodies the first dividing plate, be positioned at
This floating guard ring is internal and the second partition that is connected with described first dividing plate and be positioned at this floating
Guard ring inside the 3rd dividing plate being connected with described bottom.
Fuel liquid level valve gear the most according to claim 6, it is characterised in that: described
Fuel oil evaluator is fixed between described first dividing plate and diaphragm support plate.
Fuel liquid level valve gear the most according to claim 6, it is characterised in that: described
Refuel trim in the bottom of floating guard ring and first every between.
Fuel liquid level valve gear the most according to claim 6, it is characterised in that: described
Running losses floats and is arranged on second partition and encloses in the space set.
Fuel liquid level valve gear the most according to claim 6, it is characterised in that: described
Running losses trim is between the second partition and the 3rd dividing plate of floating guard ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620466138.5U CN205651962U (en) | 2016-05-20 | 2016-05-20 | Fuel liquid level valve gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620466138.5U CN205651962U (en) | 2016-05-20 | 2016-05-20 | Fuel liquid level valve gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205651962U true CN205651962U (en) | 2016-10-19 |
Family
ID=57403581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620466138.5U Active CN205651962U (en) | 2016-05-20 | 2016-05-20 | Fuel liquid level valve gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205651962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904962A (en) * | 2016-05-20 | 2016-08-31 | 斯丹德汽车系统（苏州）有限公司 | Fuel oil liquid level valve device |
-
2016
- 2016-05-20 CN CN201620466138.5U patent/CN205651962U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904962A (en) * | 2016-05-20 | 2016-08-31 | 斯丹德汽车系统（苏州）有限公司 | Fuel oil liquid level valve device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |