CN207274403U - A kind of resistance to gasoline vapor infiltration valve body on automotive oil tank - Google Patents
A kind of resistance to gasoline vapor infiltration valve body on automotive oil tank Download PDFInfo
- Publication number
- CN207274403U CN207274403U CN201721165856.XU CN201721165856U CN207274403U CN 207274403 U CN207274403 U CN 207274403U CN 201721165856 U CN201721165856 U CN 201721165856U CN 207274403 U CN207274403 U CN 207274403U
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- Prior art keywords
- upper cover
- layer part
- resistance
- valve body
- gasoline vapor
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model discloses a kind of resistance to gasoline vapor on automotive oil tank to permeate valve body, including：Upper cover, fuel tank and valve component；The upper cover is made of upper cover internal layer part and upper cover outer layer part, the upper cover internal layer part and the upper cover outer layer part are fixed using mutual locking structure, ventilation pipe is provided with the upper cover, the air bleeding valve that the upper cover is combined to form with the valve component is installed with the fuel tank；Due to the special construction using mutual locking, upper cover is formed by the upper cover internal layer part and upper cover outer layer part of elastic sealing element sealing, therefore with the advantages that simple in structure, the cost of material is low, and stability is strong, resistance to gasoline vapor, permeability resistance is strong.
Description
Technical field
The utility model belongs to auto parts technical field, more particularly to a kind of resistance to gasoline vapor on automotive oil tank
Permeate valve body.
Background technology
In today that auto industry develops increasingly, energy-saving and emission-reduction, walk the road of sustainable development into the hair of whole industry
Exhibition trend.Previous fuel tank of vehicle is mostly metal fuel tank, because it is found that metal fuel tank volume is larger, not corrosion resistant
Erosion, short life, therefore plastic fuel tank is developed to overcome above-mentioned technological deficiency, but the composition and structure of the strand of HDPE,
Plastic fuel tank can not be compared favourably in terms of resistance to fuel oil infiltration with metal, so that fire resistant oil permeance property is with regard to particularly critical.
China is in the vehicle of five discharge standard of state at present, since the special volatility of fuel oil is extremely unstable, fuel oil
System is essential that there are aerating system to balance inside and outside pressure, and most critical is then valve in whole aerating system
Door.The gradient air bleeding valve outer cover installed on plastic fuel tank generally uses the HDPE material of individual layer, due to the resistance to vapour of HDPE material itself
Oil vapour permeance property is poor, so cannot meet six discharge standard of Chinese state newly issued, and then in automotive fuel oil system
The resistance to gasoline permeance property of raw material has tighter requirement, therefore urgent need develops one kind and disclosure satisfy that six discharge standard of state
, stability is strong, avoids oil gas from producing gap after expanding, can reduce the valve body of petrol gas infiltration.
The content of the invention
In view of this, the utility model is intended to overcome at least one in drawbacks described above of the prior art, proposes a kind of
Simple in structure, the cost of material is low, and stability is strong, can meet the resistance to gasoline vapor infiltration valve body of Chinese six discharge standard of state, it is wrapped
Include upper cover, fuel tank and valve component；
Upper cover, the upper cover are made of upper cover internal layer part and upper cover outer layer part, outside the upper cover internal layer part and the upper cover
Layer part is fixed using mutual locking structure, and ventilation pipe is provided with the upper cover；
Fuel tank, the air bleeding valve that the upper cover is combined to form with the valve component is installed with the fuel tank.
According in this patent background technology to described in the prior art, at present China in the vehicle of five discharge standard of state, by
It is extremely unstable in the special volatility of fuel oil, thus fuel system it is essential there are aerating system come balance inside and outside pressure
Power, and most critical is then valve in whole aerating system.The gradient air bleeding valve outer cover installed on fuel tank generally uses individual layer
HDPE material, since the resistance to gasoline vapor permeance property of HDPE material itself is poor, so cannot meet the Chinese state newly issued
Six discharge standards, and then have tighter requirement to the resistance to gasoline permeance property of raw material in automotive fuel oil system, therefore be badly in need of
Develop a kind of disclosure satisfy that six discharge standard of state, stability is strong, avoids oil gas from producing gap after expanding, can reduce gasoline
The valve body of petro-gas permeation；And the disclosed resistance to gasoline vapor infiltration valve body on automotive oil tank of the utility model, pass through
Using the special construction of mutual locking, upper cover is formed by the upper cover internal layer part and upper cover outer layer part of elastic sealing element sealing, with valve
Body component combines, and complete gradient air bleeding valve is generally combined to form in a manner of friction welding, and finally uses the side of hot plate welding
Formula welds and on fuel tank, so as to fulfill to be simple in structure, the cost of material is low, and stability is strong, resistance to gasoline vapor, and permeability resistance is strong
Valve body.
In addition, the resistance to gasoline vapor infiltration valve body being used for according to disclosed in the utility model on automotive oil tank is also with as follows
Additional technical feature：
Further, the ventilation pipe is " L " shape ventilation pipe.
Further, the upper plane of the ventilation pipe in the upper cover horizontal direction is put down with the upper cover horizontal plane
OK, the lower plane of the ventilation pipe is tilted to the upper cover horizontal plane.
Further, the upper cover internal layer part includes at least one layer of barrier layer, and the upper cover outer layer part is HDPE compositions
Outer layer.
Further, at least one layer of the barrier layer is the barrier layer of POM compositions.
Further, the upper cover internal layer part is moulding, and the upper cover outer layer part is using upper cover internal layer part as compound
The built-in part injection of injection mold is wrapped in the moulding on internal layer part.
Further, the mutually locking structure has viscosity between the upper cover internal layer part and the upper cover outer layer part
It is the labyrinth shape protrusion and groove that are mutually adapted between filler, or the upper cover internal layer part and the upper cover outer layer part, or it is described
Upper cover internal layer part is locked with the upper cover outer layer part by connecting component.
Further, the connecting component is N number of buckle and/or snap ring, N >=1.
Further, the upper cover internal layer part and the upper cover outer layer part are close by elasticity after being fixed using mutual locking structure
Seals.
Further, the upper cover is combined with the valve component for friction welding mode, and the air bleeding valve is with hot plate welding
Mode be welded on the fuel tank.
The aspect and advantage that the utility model adds will be set forth in part in the description, partly by from following description
In become obvious, or recognized by the practice of the utility model.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model from the following description of the accompanying drawings of embodiments will
Become obvious and be readily appreciated that, wherein：
Fig. 1 is valve body upper cover profile according to the present utility model；
Fig. 2 is valve body upper cover overall structure Fig. 1 according to the present utility model；
Fig. 3 is valve body upper cover overall structure Fig. 2 according to the present utility model.
The aspect and advantage that the utility model adds will be set forth in part in the description, partly by from following description
In become obvious, or recognized by the practice of the utility model.
In Fig. 1,1 is upper cover internal layer part, and 2 be upper cover outer layer part, and 3 be ventilation pipe；
In Fig. 2,1 is upper cover internal layer part, and 2 be upper cover outer layer part, and 3 be ventilation pipe.
Embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and cannot be construed to the utility model
Limitation.
In the description of the utility model, it is to be understood that the orientation or position of the instruction such as term " on ", " under ", " rear "
It is based on orientation shown in the drawings or position relationship to put relation, is for only for ease of description the utility model and simplifies description, and
It is not instruction or implies signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore
It is not intended that the limitation to the utility model.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term is " even in the description of the utility model
Connect ", " fixation ", " with reference to ", " cooperation " should be interpreted broadly, for example, it may be fixedly connected, be integrally connected or
It is detachably connected；It can be the connection inside two elements；It can be directly connected, the indirect phase of intermediary can also be passed through
Even；" cooperation " can be that the cooperation in face and face or point and the cooperation in face or line and face, the also cooperation including hole axle are right
For those of ordinary skill in the art, concrete meaning of the above-mentioned term in the utility model can be understood with concrete condition.
The utility model design of the utility model is as follows, by using the special construction of mutual locking, by elastic sealing element
Upper cover internal layer part 1 and upper cover outer layer part 2 the composition upper cover of sealing, are combined, the knot generally in a manner of friction welding with valve component
Conjunction forms complete gradient air bleeding valve, and finally using the mode of hot plate welding weld with fuel tank, to prevent the swollen occipitoposterior position (of the fetus) of oil gas
Raw gap, achievees the purpose that to reduce infiltration, therefore simple in structure, and the cost of material is low, and stability is strong, can meet that Chinese state six discharges
Standard, has clear advantage.
As shown in the figure, since valve body will use the mode of hot plate welding to be welded on fuel tank, HDPE is that hot plate welding must use
Material, but the infiltration of HDPE material resistance to gasoline vapor is poor, and gasoline vapor molecule, such as hydrocarbon, can permeate HDPE materials
The wall thickness of material is discharged into the external world and pollutes, so built-in one layer of POM material, the resistance to gasoline permeance property of POM materials is fine, can be with
Effectively prevent gasoline vapor molecule infiltration from going out；Due to the resistance to expansion easy long afterwards of HDPE materials bubble oil, after expansion materials at two layers it
Between segregation phenomenon can occur cause discharge to increase, so being formed between the materials at two layers of this programme by way of composite injection molding low
Filtration module, and using the structure of mutual locking, effectively prevent the expansion of HDPE layer so that materials at two layers tight is one
Rise.
According in this patent background technology to described in the prior art, at present China in the vehicle of five discharge standard of state, by
It is extremely unstable in the special volatility of fuel oil, thus fuel system it is essential there are aerating system come balance inside and outside pressure
Power, and most critical is then valve in whole aerating system, the gradient air bleeding valve outer cover installed on fuel tank generally uses individual layer
HDPE material, since the resistance to gasoline vapor permeance property of HDPE material itself is poor, so cannot meet the Chinese state newly issued
Six discharge standards, and then have tighter requirement to the resistance to gasoline permeance property of raw material in automotive fuel oil system, therefore be badly in need of
Develop a kind of disclosure satisfy that six discharge standard of state, stability is strong, avoids oil gas from producing gap after expanding, can reduce gasoline
The valve body of petro-gas permeation；And the disclosed resistance to gasoline vapor infiltration valve body on automotive oil tank of the utility model, pass through
Using the special construction of mutual locking, upper cover is formed by the upper cover internal layer part 1 and upper cover outer layer part 2 of elastic sealing element sealing, with
Valve component combines, and complete gradient air bleeding valve is generally combined to form in a manner of friction welding, and finally using hot plate welding
Mode is welded and on fuel tank, so as to fulfill to be simple in structure, the cost of material is low, and stability is strong, resistance to gasoline vapor, and permeability resistance is strong
Valve body.
In addition, the resistance to gasoline vapor infiltration valve body being used for according to disclosed in the utility model on automotive oil tank, also has such as
Lower additional technical feature：
Some embodiments according to the present utility model, the ventilation pipe are " L " shape ventilation pipe 3.
Some embodiments according to the present utility model, the upper of the ventilation pipe 3 in the upper cover horizontal direction are put down
Face is parallel with the upper cover horizontal plane, and the lower plane of the ventilation pipe 3 is tilted to the upper cover horizontal plane.
Some embodiments according to the present utility model, the upper cover internal layer part 1 include at least one layer of barrier layer, the upper cover
Outer layer part 2 is the outer layer of HDPE compositions.
Preferably, at least one layer of the barrier layer is the barrier layer of POM compositions.
The barrier layer that material is EVOH can be increased between upper cover internal layer part 1 and upper cover outer layer part 2, EVOH distinguishing features are pair
Gas with fabulous barrier and itself have fabulous processability, otherwise see-through property, glossiness, mechanical strength, stretch
Property, wearability, cold resistance and surface strength are all very excellent.
Some embodiments according to the present utility model, the upper cover internal layer part 1 are moulding, and the upper cover outer layer part 2 is
The moulding being wrapped in using upper cover internal layer part 1 as the injection of the built-in part of composite injection moulding mould on internal layer part 1.
Some embodiments according to the present utility model, the mutually locking structure for the upper cover internal layer part 1 with it is described on
Have between cover outer layer part 2 and be mutually adapted between adhesive filler, or the upper cover internal layer part 1 and the upper cover outer layer part 2
Labyrinth shape protrusion and groove, or the upper cover internal layer part 1 are locked with the upper cover outer layer part 2 by connecting component.
In addition, carry out vacuum pressing-combining after can also using the upper cover internal layer part 1 and 2 surface treated of upper cover outer layer part
Processing mode, or the upper cover internal layer part 1 softening are extended down to the processing side on the outside of edge coated on 2 surface of upper cover outer layer part
Formula.
Adhesive filler is needed with high temperature resistant, the characteristic such as corrosion-resistant, can be to be used as to be filled primarily with material by above-mentioned EVOH
The filler for coordinating goo to mix.
Preferably, the connecting component is N number of buckle and/or snap ring, N >=1.
Some embodiments according to the present utility model, the upper cover internal layer part 1 and the upper cover outer layer part 2 are embraced using mutual
Fast knot structure is sealed after fixing by elastic sealing element.
Preferably, the seal is the rubber seal of highly resistance infiltration, and main material is fluorubber or hydrogenated butyronitrile rubber
Glue；Fluorubber has an incomparable excellent properties of other rubber, particularly be different chemical composition fuel oil on, fluorine in addition
Rubber also has good physical mechanical property and electrostatic insulating properties and radiation resistance；Hydrogenated nitrile-butadiene rubber is to fuel oil, profit
Lubricating oil, fragrant series solvent resistance are good, and have stronger heat resistance, ozone resistance and incompressible morphotropism.
Some embodiments according to the present utility model, the upper cover are combined with the valve component for friction welding mode,
The air bleeding valve is welded in a manner of hot plate welding on the fuel tank.
It is any to refer to that " one embodiment ", " embodiment ", " illustrative examples " etc. mean to combine embodiment description
Specific component, structure or feature are contained at least one embodiment of the utility model.Show in this specification everywhere this
The statement of meaning property is not necessarily referring to identical embodiment.Specific component, structure or spy are described with reference to any embodiment moreover, working as
During point, advocated, component, structure or feature with reference to as being realized other embodiments all fall within people in the art
Within the scope of member.
Although specific embodiment of the present utility model is carried out with reference to multiple illustrative examples of the utility model
Detailed description, it must be understood that those skilled in the art can be designed that various other improvement and embodiment, these change
It will fall into embodiment within the spirit and scope of the utility model principle.Specifically, in foregoing disclosure, attached drawing and power
Within the scope of profit requires, rational modification can be made in terms of the arrangement that parts and/or sub-combination are laid out and changed
Into without departing from the spirit of the utility model.Except the variations and modifications in terms of parts and/or layout, its scope is by institute
Attached claim and its equivalent limit.
Claims (10)
- A kind of 1. resistance to gasoline vapor infiltration valve body on automotive oil tank, it is characterised in that including：Upper cover, fuel tank and valve body Component；Upper cover, the upper cover are made of upper cover internal layer part and upper cover outer layer part, the upper cover internal layer part and the upper cover outer layer part Fixed using mutual locking structure, ventilation pipe is provided with the upper cover；Fuel tank, the air bleeding valve that the upper cover is combined to form with the valve component is installed with the fuel tank.
- 2. the resistance to gasoline vapor infiltration valve body according to claim 1 on automotive oil tank, it is characterised in that described logical Feed channel is " L " shape ventilation pipe.
- 3. the resistance to gasoline vapor infiltration valve body according to claim 1 on automotive oil tank, it is characterised in that described The upper plane of the ventilation pipe in upper cover horizontal direction is parallel with the upper cover horizontal plane, the lower plane of the ventilation pipe Tilted to the upper cover horizontal plane.
- 4. the resistance to gasoline vapor infiltration valve body according to claim 1 on automotive oil tank, it is characterised in that on described Cover internal layer part includes at least one layer of barrier layer, and the upper cover outer layer part is the outer layer of HDPE compositions.
- 5. the resistance to gasoline vapor infiltration valve body according to claim 4 on automotive oil tank, it is characterised in that the resistance At least one layer of interlayer is the barrier layer of POM compositions.
- 6. the resistance to gasoline vapor infiltration valve body according to claim 1 on automotive oil tank, it is characterised in that on described Cover internal layer part is moulding, and the upper cover outer layer part is the built-in part injection parcel using upper cover internal layer part as composite injection moulding mould Moulding on internal layer part.
- 7. the resistance to gasoline vapor infiltration valve body according to claim 1 on automotive oil tank, it is characterised in that the phase Mutual locking structure has adhesive filler, or the upper cover internal layer part between the upper cover internal layer part and the upper cover outer layer part It is the labyrinth shape protrusion and groove that are mutually adapted, or the upper cover internal layer part and the upper cover outer layer between the upper cover outer layer part Part is locked by connecting component.
- 8. the resistance to gasoline vapor infiltration valve body according to claim 7 on automotive oil tank, it is characterised in that the company Relay part is N number of buckle and/or snap ring, N >=1.
- 9. the resistance to gasoline vapor infiltration valve body according to claim 1 on automotive oil tank, it is characterised in that on described Cover internal layer part and the upper cover outer layer part are sealed after being fixed using mutual locking structure by elastic sealing element.
- 10. the resistance to gasoline vapor infiltration valve body according to claim 1 on automotive oil tank, it is characterised in that described Upper cover is combined with the valve component for friction welding mode, and the air bleeding valve is welded on the fuel tank in a manner of hot plate welding On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721165856.XU CN207274403U (en) | 2017-09-12 | 2017-09-12 | A kind of resistance to gasoline vapor infiltration valve body on automotive oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721165856.XU CN207274403U (en) | 2017-09-12 | 2017-09-12 | A kind of resistance to gasoline vapor infiltration valve body on automotive oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207274403U true CN207274403U (en) | 2018-04-27 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721165856.XU Expired - Fee Related CN207274403U (en) | 2017-09-12 | 2017-09-12 | A kind of resistance to gasoline vapor infiltration valve body on automotive oil tank |
Country Status (1)
| Country | Link |
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| CN (1) | CN207274403U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107719111A (en) * | 2017-09-21 | 2018-02-23 | 苏州欧迪科汽车设计有限公司 | The valve body of automotive oil tank |
-
2017
- 2017-09-12 CN CN201721165856.XU patent/CN207274403U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107719111A (en) * | 2017-09-21 | 2018-02-23 | 苏州欧迪科汽车设计有限公司 | The valve body of automotive oil tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180427 Termination date: 20190912 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |