CN208184858U - Integrated double check valve device suitable for vehicle fuel oil evaporation system - Google Patents
Integrated double check valve device suitable for vehicle fuel oil evaporation system Download PDFInfo
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- CN208184858U CN208184858U CN201820667098.XU CN201820667098U CN208184858U CN 208184858 U CN208184858 U CN 208184858U CN 201820667098 U CN201820667098 U CN 201820667098U CN 208184858 U CN208184858 U CN 208184858U
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- check valve
- connecting pin
- wen
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- fuel oil
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Abstract
The utility model relates to a kind of integrated double check valve devices suitable for vehicle fuel oil evaporation system, it include Wen's tube body, Venturi tube structure is provided in Wen's tube body, main valve piece is provided with it is characterized by: being located in the main connecting pin of Venturi tube bodies top, main side lid is connected on main connecting pin, constitute the first one-way valve structures, secondary valve block is provided in the secondary connecting pin of Wen's tube body side, secondary end cap is connected on secondary connecting pin, second one-way valve structure is constituted, the outlet side of Wen's tube body is provided with female connector.Two check valve Integrated designs effectively reduce number of parts in EVAP system on Venturi tube as a result, reduce the occupancy to space.Black box is constituted reduces traditional pipe press fitting step, easily fabricated and in-site installation less.The angle of each one-way valve structures can be designed to elbow and adjustable style, meet pipeline cabling and adjust needs.There are many male connector constructions, female construction, can be matched according to pipeline type.
Description
Technical field
The utility model relates to a kind of automobile-used valve gear more particularly to a kind of integrating suitable for vehicle fuel oil evaporation system
Double check valve device.
Background technique
With flourishing for modern automobile industry, the problems such as polluting is revealed for motor vehicle exhaust emission, fuel evaporation
Control has become one of the emphasis in automobile R&D process.Based on announced " GB18352.6-2016 light-duty vehicle pollutant
Emission limit and measurement method (Chinese 6th stage) ", automobile allows to evaporate into the amount in atmosphere and needs stringenter control,
In vehicle fuel oil evaporation control system (EVAP), the fuel-steam in fuel tank, which is often temporarily stored in, to be attached thereto
Canister in, be finally desorbed into engine combustion.At present by arranging Wen in fuel evaporation control system (EVAP)
The technical solution for managing and matching check valve is considered as improving the effective means of canister intermediate fuel oil steam desorption efficiency.
Common fuel-steam desorption principle is as follows:
Due to the volatile of gasoline, it is filled with fuel-steam in vehicle fuel oil evaporation system, to prevent fuel-steam
Accumulation is excessive and is leaked in atmosphere, and the fuel-steam passage path in fuel tank, which initially enters and adheres to be stored in, is
Canister in system needs to be desorbed and enters engine and fired after the saturation degree that the fuel-steam in canister reaches certain
It burns, thereby guarantees that canister can continue absorbing and storing fuel-steam；Fuel-steam is detached through active path most from canister
Enter the behavior that engine burns eventually to be known as being desorbed.
Fuel-steam includes negative pressure desorption route from the path that canister is desorbed, and fuel-steam is in pipe-line system in canister
It flows through solenoid valve, check valve air throttle, inlet manifold and enters engine.Further include having positive pressure that route is desorbed, is canister internal combustion
Oil vapour flows through solenoid valve, check valve, Venturi tube, check valve, turbocharger, air throttle, inlet manifold in pipe-line system
Into engine.
For this purpose, in existing fuel evaporation control system (EVAP), there is a following defect: check valve and Venturi tube are only
Vertical components, amount of parts is more, and occupied space is more.Venturi tube and check valve need to install not convenient by piping connection.
Check valve passes through three sections of pipelines with check valve, Valve EGR respectively and connect with a three-way piece, equally increases part amount, accounts for
With pipeline space.More importantly not having check valve in existing system, when air throttle failure, fresh air is along pipe
Road passes sequentially through air filter, Venturi tube, check valve and enters inlet manifold, so that air inflow when engine idling is excessive, causes idle
It is fast unstable.
In view of the above shortcomings, the designer, is actively subject to research and innovation, it is a kind of suitable for vehicle fuel to found
The integrated double check valve device of vapo(u)rization system makes it with more the utility value in industry.
Utility model content
In order to solve the above technical problems, the purpose of the utility model is to provide a kind of suitable for vehicle fuel oil evaporation system
Integrated double check valve device.
The integrated double check valve device suitable for vehicle fuel oil evaporation system of the utility model, includes Venturi tube sheet
Body is provided with Venturi tube structure in Wen's tube body, in which: set in the main connecting pin of the Venturi tube bodies top
It is equipped with main valve piece, main side lid is connected on the main connecting pin, constitutes the first one-way valve structures, is located at Wen's tube body side
It is provided with secondary valve block in the secondary connecting pin in face, is connected with secondary end cap on the pair connecting pin, constitutes second one-way valve structure, it is described
The outlet side of Wen's tube body is provided with female connector.
Further, the above-mentioned integrated double check valve device suitable for vehicle fuel oil evaporation system, wherein the main company
It connects end, in secondary connecting pin, is provided with valve block pressed end, the main valve piece, secondary valve block and corresponding valve block pressed end phase
Even.
Further, the above-mentioned integrated double check valve device suitable for vehicle fuel oil evaporation system, wherein the master
Valve block and secondary valve block, include valve block ontology, and linking tail portion is provided on the valve block ontology, is distributed on the valve block ontology
There is stiffener assembly.
Further, the above-mentioned integrated double check valve device suitable for vehicle fuel oil evaporation system, wherein described to add
Strong component is reinforcing rib.
Further, the above-mentioned integrated double check valve device suitable for vehicle fuel oil evaporation system, wherein the master
End cap is fold angle type end cap, and the fold angle type end cap and Wen's tube body are provided with main adjustable angle, the adjustable angle of master
Angle is 0 to 90 °.
Further, the above-mentioned integrated double check valve device suitable for vehicle fuel oil evaporation system, wherein the master
End cap and secondary end cap include fuel-steam desorption inlet end, and the tail portion of the fuel-steam desorption inlet end is provided with ring-type
Air-flow guide wall, annular flow guide wall outer end are arranged with valve body connecting pin.
Further, the above-mentioned integrated double check valve device suitable for vehicle fuel oil evaporation system, wherein the combustion
It is that slotting male connector constructs fastly, or is ring joint construction that inlet end, which is desorbed, in oil vapour.
Still further, the above-mentioned integrated double check valve device suitable for vehicle fuel oil evaporation system, wherein the mother
Head connector is direct-connected female construction slotting fastly；Or the female connector is that elbow type inserts female construction, the elbow fastly
Formula inserts female construction fastly and Wen's tube body is provided with secondary adjustable angle, and the angle of the adjustable angle of pair is 0 to 360 °.
According to the above aspect of the present invention, the utility model at least has the following advantages:
1, two check valve Integrated designs effectively reduce number of parts in EVAP system on Venturi tube, reduce pair
The occupancy in space.
2, black box is constituted few, reduces traditional pipe press fitting step, easily fabricated and in-site installation.
3, the angle of each one-way valve structures can be designed to elbow and adjustable style, meet pipeline cabling and adjust needs.
4, it there are many male connector construction, female construct, can be matched according to pipeline type.
5, idling steady may be implemented after use, possesses effective one-way conduction control effect.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Detailed description of the invention
Fig. 1 is the decomposition diagram of the integrated double check valve device suitable for vehicle fuel oil evaporation system.
Fig. 2 is the schematic diagram of the section structure of the integrated double check valve device suitable for vehicle fuel oil evaporation system.
Fig. 3 is the structural schematic diagram of fuel-steam desorption inlet end.
Fig. 4 is the structural schematic diagram of main valve piece.
Fig. 5 is the distribution schematic diagram of main adjustable angle (using fold angle type end cap).
Fig. 6 is the distribution schematic diagram (inserting female construction fastly using elbow type) of secondary adjustable angle.
The meaning of each appended drawing reference is as follows in figure.
The main connecting pin of 1 Wen's tube body 2
3 main valve piece, 4 main side lid
The secondary connecting pin of 5 first one-way valve structures 6
The 7 secondary end caps of secondary valve block 8
9 second one-way valve structure, 10 outlet side
11 female connector, 12 valve block pressed end
13 valve block ontologies 14 are connected tail portion
The main adjustable angle of 15 stiffener assemblies 16
18 annular flow guide wall of inlet end is desorbed in 17 fuel-steams
The secondary adjustable angle in 19 valve body connecting pin 20
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 not intended to limit the scope of the present invention for illustrating the utility model.
It include Wen's tube body 1 such as the integrated double check valve device suitable for vehicle fuel oil evaporation system of Fig. 1 to 6,
Venturi tube structure is provided in Wen's tube body 1, unusual place is: in order to realize one-way conduction control, and it is full
The integrated layout of foot needs, and is provided with main valve piece 3 in the main connecting pin 2 at 1 top of Wen's tube body, connects on main connecting pin 2
It is connected to main side lid 4, constitutes the first one-way valve structures 5.It is corresponding to be, in the secondary connecting pin 6 of 1 side of Wen's tube body
It is provided with secondary valve block 7, secondary end cap 8 is connected on secondary connecting pin 6, constitutes second one-way valve structure 9.Also, in Wen's tube body 1
Outlet side 10 be provided with female connector 11.
From the point of view of the preferable embodiment of the utility model one, in order to promote air-tightness, in connecting pin, secondary connecting pin 6
It is interior, it is provided with valve block pressed end 12, main valve piece 3, secondary valve block 7 are connected with corresponding valve block pressed end 12.In this way, can be with
Guarantee that valve block is effectively bonded during valve block closure.Meanwhile in order to improve service life, effective gas shock, this reality are born
With the main valve piece 3 and secondary valve block 7 of novel use, includes valve block ontology 13, linking tail portion 14 is provided on valve block ontology 13,
Stiffener assembly 15 is distributed on valve block ontology 13.Also, in order to reduce processing cost, and the ability of anti-deformation of valve block is promoted, adopted
Stiffener assembly 15 is reinforcing rib.
Furthermore, it is contemplated that interior pipe-line layout is different, in order to realize effective angular adjustment, promotes assembly and coincide
Degree, main side lid 4 can be fold angle type end cap, enable fold angle type end cap and Wen's tube body 1 be provided with main adjustable angle 16, master is adjustable
The angle of angle 16 is 0 to 90 °.When assembly, allow to be rotated both clockwise and counterclockwise assembling.Angle adjustable is more, adapts to vehicle
Practical pipeline moves towards most preferably to be adjusted inside.
From the point of view of actual implementation, it is contemplated that meet the connector needs of common pipeline, the main side lid 4 that the utility model uses
It include fuel-steam desorption inlet end 17 with secondary end cap 8.Meanwhile in order to realize stable, effective air-flow guiding, fuel oil steams
The tail portion of vapour desorption inlet end 17 is provided with annular flow guide wall 18, and 18 outer end of annular flow guide wall is arranged with valve body connection
End 19.Also, consider the difference of type of vehicle, there may be interface differences for pipe interface.For this purpose, for quick connector
For pipeline, it is that slotting male connector constructs fastly that inlet end 17, which is desorbed, in fuel-steam.Alternatively, ring connector structure can be used in order to anti-loose
It makes.
Meanwhile for the male connector position distribution of conventional conduit for, female connector 11 that the utility model uses can be with
For direct-connected female construction slotting fastly.Also, the needs of space layout in order to balance can carry out necessary angle adjustment, use
Female connector 11 can also insert fastly female for elbow type and construct (bending angle is preferred with 90 °).Elbow type inserts female construction fastly
Wen's tube body 1 is provided with secondary adjustable angle 20, the angle of secondary adjustable angle 20 is 0 to 360 °.In this way, it can be achieved that full angle
Patch adjustment.
It can be seen from the above written description and the attached drawings that gathering around and having the following advantages after using the utility model:
1, two check valve Integrated designs effectively reduce number of parts in EVAP system on Venturi tube, reduce pair
The occupancy in space.
2, black box is constituted few, reduces traditional pipe press fitting step, easily fabricated and in-site installation.
3, the angle of each one-way valve structures can be designed to elbow and adjustable style, meet pipeline cabling and adjust needs.
4, it there are many male connector construction, female construct, can be matched according to pipeline type.
5, idling steady may be implemented after use, possesses effective one-way conduction control effect.
The above is only the preferred embodiment of the utility model, is not intended to limit the utility model, it is noted that
For those skilled in the art, without deviating from the technical principle of the utility model, it can also do
Several improvements and modifications out, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (8)
- It include Wen's tube body (1), the Venturi tube 1. being suitable for the integrated double check valve device of vehicle fuel oil evaporation system Venturi tube structure is provided in ontology (1), it is characterised in that: is located in the main connecting pin (2) at the top of Wen's tube body (1) It is provided with main valve piece (3), is connected with main side lid (4) on the main connecting pin (2), constituted the first one-way valve structures (5), be located at institute It states and is provided with secondary valve block (7) in the secondary connecting pin (6) of Wen's tube body (1) side, be connected with secondary end on the pair connecting pin (6) It covers (8), constitutes second one-way valve structure (9), the outlet side (10) of Wen's tube body (1) is provided with female connector (11)。
- 2. the integrated double check valve device according to claim 1 suitable for vehicle fuel oil evaporation system, it is characterised in that: It in the main connecting pin (2), secondary connecting pin (6), is provided with valve block pressed end (12), the main valve piece (3), secondary valve block (7) it is connected with corresponding valve block pressed end (12).
- 3. the integrated double check valve device according to claim 1 suitable for vehicle fuel oil evaporation system, it is characterised in that: The main valve piece (3) and secondary valve block (7), include valve block ontology (13), are provided with linking tail on the valve block ontology (13) Stiffener assembly (15) are distributed on the valve block ontology (13) in portion (14).
- 4. the integrated double check valve device according to claim 3 suitable for vehicle fuel oil evaporation system, it is characterised in that: The stiffener assembly (15) is reinforcing rib.
- 5. the integrated double check valve device according to claim 1 suitable for vehicle fuel oil evaporation system, it is characterised in that: The main side lid (4) is fold angle type end cap, and the fold angle type end cap and Wen's tube body (1) are provided with main adjustable angle (16), The angle of the adjustable angle of master (16) is 0 to 90 °.
- 6. the integrated double check valve device according to claim 1 suitable for vehicle fuel oil evaporation system, it is characterised in that: The main side lid (4) and secondary end cap (8) include fuel-steam desorption inlet end (17), and inlet end is desorbed in the fuel-steam (17) tail portion is provided with annular flow guide wall (18), and annular flow guide wall (18) outer end is arranged with valve body connecting pin (19)。
- 7. the integrated double check valve device according to claim 6 suitable for vehicle fuel oil evaporation system, it is characterised in that: Fuel-steam desorption inlet end (17) is that slotting male connector constructs fastly, or is ring joint construction.
- 8. the integrated double check valve device according to claim 1 suitable for vehicle fuel oil evaporation system, it is characterised in that: The female connector (11) is direct-connected female construction slotting fastly；Or the female connector (11) is that elbow type inserts mother fastly Head structure, the elbow type insert female construction fastly and Wen's tube body (1) are provided with secondary adjustable angle (20), the pair adjustable clamp The angle at angle (20) is 0 to 360 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820667098.XU CN208184858U (en) | 2018-05-07 | 2018-05-07 | Integrated double check valve device suitable for vehicle fuel oil evaporation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820667098.XU CN208184858U (en) | 2018-05-07 | 2018-05-07 | Integrated double check valve device suitable for vehicle fuel oil evaporation system |
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| Publication Number | Publication Date |
|---|---|
| CN208184858U true CN208184858U (en) | 2018-12-04 |
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ID=64432727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820667098.XU Active CN208184858U (en) | 2018-05-07 | 2018-05-07 | Integrated double check valve device suitable for vehicle fuel oil evaporation system |
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| Country | Link |
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| CN (1) | CN208184858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425769A (en) * | 2018-05-07 | 2018-08-21 | 苏州恩都法汽车系统有限公司 | A kind of integrated double check valve device suitable for vehicle fuel oil evaporation system |
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2018
- 2018-05-07 CN CN201820667098.XU patent/CN208184858U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425769A (en) * | 2018-05-07 | 2018-08-21 | 苏州恩都法汽车系统有限公司 | A kind of integrated double check valve device suitable for vehicle fuel oil evaporation system |
| CN108425769B (en) * | 2018-05-07 | 2024-04-09 | 苏州恩都法汽车系统股份有限公司 | Integrated double-check valve device suitable for automobile fuel evaporation system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
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, 1st floor, No.6 factory building, Xinxing Industrial Square, 78 Xinglin street, Suzhou Industrial Park, Jiangsu Province Patentee before: SUZHOU ENDUFA AUTOMOBILE SYSTEM CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |