CN210919272U - Automobile fuel steam desorption integrated venturi device - Google Patents
Automobile fuel steam desorption integrated venturi device Download PDFInfo
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- CN210919272U CN210919272U CN201921303078.5U CN201921303078U CN210919272U CN 210919272 U CN210919272 U CN 210919272U CN 201921303078 U CN201921303078 U CN 201921303078U CN 210919272 U CN210919272 U CN 210919272U
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- venturi
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Abstract
The utility model discloses a car fuel steam desorption integrated form venturi device, include: the quick plug component, the Venturi tube and the desorption tube; the venturi tube and the quick connector assembly are mutually perpendicular and fixedly connected, and the desorption tube is fixedly connected with the venturi tube; the desorption pipe all is provided with back-off structure and guide angle with venturi's free end, and the guide angle passes through the back-off structure and is connected with desorption pipe and venturi, and the external diameter that the one end of back-off structure was kept away from to the guide angle is less than the external diameter that the guide angle is close to the one end of back-off structure. In this way, the utility model discloses can make each spare part become an organic whole, improve integrating of device, reduce the quantity of spare part, reduce occuping of space. The connecting distance between the Venturi tube and the engine intake manifold is shortened through the quick plug-in connector assembly, external pipeline connection is omitted, space is saved, and cost is reduced.
Description
Technical Field
The utility model relates to a venturi technical field especially relates to an automobile fuel steam desorption integrated form venturi device.
Background
Currently, the country pays more attention to the problem of automobile pollution (exhaust emission, fuel evaporation leakage and the like), and the requirements of the fifth country are very strict, but the emission limit value and the measurement method of the light automobile pollutant of the < < GB18352.6-2016 (the sixth stage of China) > (national six for short) are more strict, and the emission allowed by the automobile to be emitted into the atmosphere is more strictly controlled on the basis of the fifth country. The limit value of fuel evaporation emission is lower, and meanwhile, a vehicle-mounted diagnosis system of the whole vehicle is required to carry out full-stroke monitoring on a high-pressure desorption path of the fuel system, and monitor desorption flow and whether the whole pipeline is damaged or not.
Conventional automobile fuel steam desorption system route passes through venturi and gets into air intake manifold, need connect perpendicularly between two devices, and conventional venturi arranges that the pipeline needs to detour and satisfy the requirement with this needs, and the pipeline detours and can cause venturi and engine air intake manifold's distance of being connected to be greater than the setting value, needs to increase pressure sensor and monitors whether there is the condition of revealing to take place, has caused the increase of cost, the waste in space.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides an automobile fuel steam desorption integrated form venturi device, can make each spare part become one, improves integrating of device, reduces the quantity of spare part, reduces occuping of space.
In order to achieve the above object, the technical solution of the present invention is:
an integrated automobile fuel vapor desorption venturi device, comprising: the quick plug component, the Venturi tube and the desorption tube; the venturi tube and the quick connector assembly are mutually perpendicular and fixedly connected, and the desorption tube is fixedly connected with the venturi tube; the detachment pipe is provided with an inverted buckle structure and a guide angle with the free end of the Venturi tube, the guide angle passes through the inverted buckle structure and the detachment pipe is connected with the Venturi tube, the guide angle is far away from the outer diameter of one end of the inverted buckle structure is smaller than the guide angle is close to the outer diameter of one end of the inverted buckle structure.
Preferably, the quick connector assembly comprises a locking block and a connecting port, the connecting port is fixedly connected with the locking block, and the venturi tube is connected with the locking block through the connecting port.
Preferably, the adaptor port is provided in a circular ring structure.
Preferably, still include the connecting block subassembly, the connecting block subassembly includes first connecting block and second connecting block, first connecting block and second connecting block are the circle column structure, first connecting block sets up on the venturi, the second connecting block sets up on the desorption pipe.
Preferably, a groove is formed in the first connecting block, and a projection matched with the groove is formed in the second connecting block.
Preferably, a groove is formed in the second connecting block, and a projection matched with the groove is formed in the first connecting block.
Preferably, the diameters of all parts of the desorption pipe body are consistent.
Preferably, the included angle between the central axis of the desorption pipe and the central axis of the venturi tube is 15-25 degrees.
Preferably, a reinforcing rib is arranged at the joint of the venturi tube and the quick plug head assembly.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model has the following beneficial effect:
the utility model provides an automobile fuel steam desorption integrated form venturi device, because fast plug connector subassembly, venturi and desorption pipe are fixed connection, make each spare part become one, improve integrating of device, reduce the quantity of spare part, reduce the occupation in space, reduce automobile development cost.
Drawings
Fig. 1 is the structure schematic diagram of the utility model relates to an automobile fuel steam desorption integrated form venturi device.
Fig. 2 is a front view of the utility model relates to an automobile fuel steam desorption integrated form venturi device.
Fig. 3 is an explosion diagram of the utility model relates to an automobile fuel steam desorption integrated form venturi device.
Figure 4 is a cross-sectional view of the venturi in the direction a-a in figure 2.
Description of reference numerals:
the device comprises a locking block 11, a connecting port 12, a Venturi tube 2, a Venturi structure 21, a desorption tube 3, a connecting block assembly 4, a first connecting block 41, a second connecting block 42, a reversing structure 5 and a guide angle 6.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to the drawings, an automobile fuel steam desorption integrated venturi device comprises: a quick-connect plug assembly, a venturi 2, and a desorption tube 3. Venturi 2 and quick connector subassembly mutually perpendicular fixed connection, desorption pipe 3 and venturi 2 fixed connection all need not external pipe connection between quick connector subassembly, venturi 2 and the desorption pipe 3, and venturi 2 and quick connector subassembly, desorption pipe 3 and venturi 2 all can realize fixed connection through the welding.
The quick connector assembly comprises a locking block 11 and a connecting port 12, the connecting port 12 is fixedly connected with the locking block 11, and the Venturi tube 2 is connected with the locking block 11 through the connecting port 12. The connecting distance between the Venturi tube and the engine intake manifold is shortened through the quick plug-in connector assembly, external pipeline connection is omitted, space is saved, and cost is reduced.
The mouthpiece 12 is arranged in a circular structure, that is, the overall shape of the mouthpiece 12 is cylindrical, so that the venturi tube 2 and the mouthpiece 12 can be connected at any angle in the process of connecting the two, and the method is suitable for more practical scenes.
The engine intake manifold can be directly connected with the quick connector assembly through the locking block 11 without being connected with an external pipeline. The locking block 11 comprises a fixing block and a fastening block, the fastening block is movably inserted into the fixing block, the fixing block is of a hollow structure, and the fastening block can be freely inserted into the fixing block and can be freely inserted out of the fixing block. The engine intake manifold is directly connected with the fixed block, and the engine intake manifold and the fixed block are locked and fixed through the fastening block.
The venturi device further comprises a connecting block assembly 4, wherein the connecting block assembly 4 comprises a first connecting block 41 and a second connecting block 42, the first connecting block 41 is fixedly arranged on the venturi tube 2, and the second connecting block 42 is fixedly arranged on the desorption tube 3. First connecting block 41 and second connecting block 42 are circular structure, can realize 360 swivelling joint between desorption pipe 3 and venturi 2, according to different whole car layouts, can carry out the connection of different angles, make whole car layout more simple and convenient like this.
One of them may be inserted into the other for tight connection of the two. For example, a groove is arranged in the first connecting block 41, and a projection matched with the groove is arranged on the second connecting block 42; or a groove is arranged in the second connecting block 42, a convex block matched with the groove is arranged on the first connecting block 41, and after the first connecting block 41 is connected with the second connecting block 42, the convex block is positioned in the groove. The adaptor port 12 in the quick-connect head assembly may also be configured as a connector block assembly 4.
The free ends of the desorption pipe 3 and the Venturi tube 2 are both provided with an inverted structure 5 and a guide angle 6, and the guide angle 6 is connected with the desorption pipe 3 and the Venturi tube 2 through the inverted structure 5. The back-off structure 5 comprises at least two back-off blocks connected in series, the outer diameter of one end, close to the guide angle 6, of each back-off block is smaller than the outer diameter of one end, far away from the guide angle 6, of each back-off block, and therefore an external pipeline is not prone to separation.
The outer diameter of one end of the guide angle 6 far away from the inverted buckle structure 5 is smaller than that of one end of the guide angle 6 close to the inverted buckle structure 5. During the assembly venturi 2 and desorption pipe 3 enter into external pipeline along guide angle 6, back-off structure 5 and external pipeline form interference fit, can prevent effectively that external pipeline from deviating from to play sealed effect simultaneously.
The diameters of all parts of the desorption pipe 3 are consistent, namely the pipe 3 is in a straight cylinder shape, which is beneficial to improving the flow rate and the desorption performance.
The included angle between the central axis of the desorption pipe 3 and the central axis of the Venturi tube 2 is 15-25 degrees, which is beneficial to the plug-in of an external pipeline, and avoids the mutual influence of two pipelines in the plug-in process, and because the joint of the guide angle 6 and the external pipeline is designed to be a circular structure, different angles can be selected according to different arrangement forms of the whole vehicle.
The venturi tube 2 is internally provided with a venturi structure 21. The venturi 2 is provided with the strengthening rib with the junction of quick connector subassembly, reinforcing product structural strength makes junction stress dispersion, non-deformable.
In the in-service use in-process, when the automobile starts, when turbocharging does not intervene work, the negative pressure that fuel steam desorption integrated form venturi device produced through engine piston reciprocating motion because the negative pressure is lower than external atmospheric pressure, forms the pressure differential, and the pressure differential produces the air current, and external air current can flow in from venturi 2 and desorption pipe 3 simultaneously, the fast plug assembly of flow direction.
When the air inside the Venturi tube 2 flows through the Venturi tube waiting opening, the flow speed is accelerated, a low pressure can be generated again, a pressure difference is formed, the pressure difference generates air flow, the air suction speed of the desorption tube 3 is accelerated, the air flows to the quick connector assembly, and the air flows into the air inlet manifold together with the quick connector assembly end and finally flows into the engine combustion chamber.
When the turbocharging device intervenes the during operation, turbocharging device produces the malleation, form the air current, the air current flows into venturi 2 from external pipeline, it waits for mouthful department to wait for the air current through venturi when 2 inside venturis of venturi, the velocity of flow accelerates, produce the low pressure, be less than external atmospheric pressure, form the pressure differential, the pressure differential produces the air current, the air current flows in from desorption pipe 3, wait mouthful department with venturi 2 air current and can with, flow to fast plug assembly jointly, and with fast plug assembly end inflow air intake manifold, finally flow in the engine combustion chamber.
The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an automobile fuel steam desorption integrated form venturi device which characterized in that includes: the quick plug component, the Venturi tube and the desorption tube; the venturi tube and the quick connector assembly are mutually perpendicular and fixedly connected, and the desorption tube is fixedly connected with the venturi tube; the free ends of the detachment pipe and the Venturi tube are provided with an inverted structure and a guide angle, the guide angle is connected with the detachment pipe and the Venturi tube through the inverted structure, and the outer diameter of one end, far away from the inverted structure, of the guide angle is smaller than that of one end, close to the inverted structure, of the guide angle; the diameters of all parts of the desorption pipe body are consistent; the included angle between the central axis of the desorption pipe and the central axis of the Venturi tube is 15-25 degrees.
2. The integrated automobile fuel vapor desorption venturi device according to claim 1, wherein: the quick connector assembly comprises a locking block and a connecting port, the connecting port is fixedly connected with the locking block, and the Venturi tube is connected with the locking block through the connecting port.
3. The integrated automobile fuel vapor desorption venturi device according to claim 2, wherein: the joint is of a circular structure.
4. The integrated automobile fuel vapor desorption venturi device according to claim 1, wherein: still include the connecting block subassembly, the connecting block subassembly includes first connecting block and second connecting block, first connecting block and second connecting block are the circle column structure, first connecting block sets up on the venturi, the second connecting block sets up on the desorption pipe.
5. The integrated automobile fuel vapor desorption venturi device according to claim 4, wherein: a groove is formed in the first connecting block, and a protruding block matched with the groove is arranged on the second connecting block.
6. The integrated automobile fuel vapor desorption venturi device according to claim 4, wherein: a groove is formed in the second connecting block, and a protruding block matched with the groove is arranged on the first connecting block.
7. The integrated automobile fuel vapor desorption venturi device according to claim 1, wherein: and a reinforcing rib is arranged at the joint of the Venturi tube and the quick plug head assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921303078.5U CN210919272U (en) | 2019-08-12 | 2019-08-12 | Automobile fuel steam desorption integrated venturi device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921303078.5U CN210919272U (en) | 2019-08-12 | 2019-08-12 | Automobile fuel steam desorption integrated venturi device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210919272U true CN210919272U (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921303078.5U Active CN210919272U (en) | 2019-08-12 | 2019-08-12 | Automobile fuel steam desorption integrated venturi device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210919272U (en) |
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2019
- 2019-08-12 CN CN201921303078.5U patent/CN210919272U/en active Active
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