CN111980830B - Venturi integrated valve of evaporative emission system - Google Patents
Venturi integrated valve of evaporative emission system Download PDFInfo
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- CN111980830B CN111980830B CN202011081257.6A CN202011081257A CN111980830B CN 111980830 B CN111980830 B CN 111980830B CN 202011081257 A CN202011081257 A CN 202011081257A CN 111980830 B CN111980830 B CN 111980830B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0836—Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
Abstract
The invention provides a Venturi integrated valve of an evaporative emission system, which relates to the technical field of national six evaporative systems and aims to solve the problems that in the prior art, a plurality of valve bodies are used in a matched mode at present, the production process is complex, the assembly procedures are multiple, the process flow is complex, the material consumption is high, the types of accessories are multiple, the space occupation ratio is large, the pipeline arrangement difficulty is high, the function realization cost is high, and the management is difficult; a third cavity and a fourth cavity are arranged in the third body and are communicated with a third pipeline, the first cavity is communicated with the third cavity to form a first passage, and the second cavity is communicated with the fourth cavity to form a second passage; the first body and the second body are connected through the first connecting part and the second connecting part, and the first pipeline is communicated with the second pipeline to form a third passage.
Description
Technical Field
The invention relates to the technical field of national six evaporation systems, in particular to a Venturi integrated valve of an evaporative emission system.
Background
With the rapid development of the modern automobile industry, control of the problems of automobile exhaust emission, fuel evaporation leakage pollution and the like becomes one of the key points in the automobile research and development process, automobile users have higher and higher requirements on the safety performance of automobiles, and the valve body device for recycling fuel steam in the national six-phase evaporated fuel system on the automobiles becomes an indispensable part on the automobiles.
The automobile air inlet system consists of an air inlet pipe assembly, an air filter assembly, a turbocharger, an intercooler, an air inlet manifold, an air inlet valve and the like.
The applicant has found that the prior art has at least the following technical problems:
at present, a plurality of valve bodies are matched for use through arrangement and connection of engine nylon pipes, and the problems of complex production process, various assembly procedures, complex process flow, high material consumption, various accessory types, large space occupation ratio, high pipeline arrangement difficulty, high function realization cost and difficult management exist.
Disclosure of Invention
The invention aims to provide a Venturi integration valve of an evaporative emission system, which aims to solve the problems that in the prior art, a plurality of valve bodies are matched for use through arrangement and connection of nylon pipes of an engine, the production process is complex, the assembly procedures are multiple, the process flow is complex, the material consumption is high, the types of accessories are multiple, the space occupation ratio is large, the pipeline arrangement difficulty is high, the function realization cost is high, and the management is difficult. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a Venturi integration valve of an evaporative emission system, which is characterized in that: including first body, second body and with first body, the third body that the second body all is connected, wherein:
the first body is provided with a first pipeline, a first body connecting part and a first connecting part, a first cavity is arranged inside the first body, and the first cavity is communicated with the first pipeline;
the second body is provided with a second pipeline, a second body connecting part and a second connecting part, a second cavity is arranged inside the second body, and the second cavity is communicated with the second pipeline;
a third pipeline and a third body connecting part are arranged on the third body, a third cavity and a fourth cavity are arranged inside the third body, and the third pipeline is communicated with the third cavity and the fourth cavity;
the third body connecting part is respectively connected with the first body connecting part and the second body connecting part, the first cavity is communicated with the third cavity to form a first passage, and the second cavity is communicated with the fourth cavity to form a second passage;
the first body is connected with the second body through the first connecting portion and the second connecting portion, and the first pipeline is communicated with the second pipeline to form a third passage.
Preferably, a sensor mount is further included, wherein:
the sensor mounting seat is arranged to comprise a fixing portion and a connecting portion, one end of the connecting portion is communicated with the second pipeline, the other end of the connecting portion is connected with an inlet of the pressure sensor, and the fixing portion is used for fixing the pressure sensor through a connecting piece.
Preferably, the first passage, the second passage and the third passage are internally provided with a clamping ring and a valve plate, the clamping ring is arranged at the end parts of the first cavity, the second cavity and the first connecting part, and the valve plate is arranged on the clamping ring.
Preferably, the third pipeline comprises a first outlet end and a second outlet end, and the first outlet end and the second outlet end are respectively communicated with the third cavity and the fourth cavity;
the size of the valve plate is set to be not smaller than the sizes of the first outlet end and the second outlet end.
Preferably, the first pipeline comprises a first pipeline outlet end, and the first pipeline outlet end is arranged to be communicated with the first connecting part;
the size of the valve plate is set to be not smaller than that of the outlet end of the first pipeline.
Preferably, further comprising a seal ring, wherein: the sealing rings are arranged at the joints of the first cavity and the third cavity as well as the joints of the second cavity and the fourth cavity.
Preferably, a plurality of first convex columns and a plurality of second convex columns are respectively arranged on the inner side walls of the first body, the second body and the third body;
the plurality of first convex columns are uniformly distributed along the circumferential directions of the first cavity and the second cavity respectively;
the plurality of second convex columns are uniformly distributed along the circumferential directions of the third cavity and the fourth cavity respectively;
the sealing ring is arranged between the first convex column and the second convex column.
Preferably, a connecting structure is arranged on one side of the second body, the connecting structure is communicated with the second pipeline, and the connecting structure is used for connecting an air filtering pipeline;
the connecting structure is a quick-connection plug or a welding structure.
Preferably, the first body connecting portion and the second body connecting portion are both arranged to be of a buckle structure, the third body connecting portion is arranged to include a clamping groove, and the third body connecting portion is connected with the first body connecting portion and the second body connecting portion through the clamping grooves and the buckles.
Preferably, the fixing portion is disposed on a peripheral side of the connection end, and the fixing portion includes a snap structure.
The Venturi integrated valve of the evaporative emission system is used for the research and development of valve bodies in a national six-energy-saving and emission-reducing system of an automobile, and the arrangement and connection of two nylon pipes are reduced on the premise of meeting the functional performance of the original multi-valve body: the desorption end and the intercooler end integrate the connection and the arrangement of the pipelines and the connection mode and the function of the multiple valve bodies to form a comprehensive valve.
The first body and the second body are connected with the third body, the first pipeline is arranged to be communicated with the first cavity, the second pipeline is arranged to be communicated with the second cavity, the third pipeline is arranged to be communicated with the third cavity and the fourth cavity, after the third body connecting part is respectively connected with the first body connecting part and the second body connecting part, the first cavity is communicated with the third cavity to form a first passage, and the second cavity is communicated with the fourth cavity to form a second passage; after the first body and the second body are connected through the first connecting part and the second connecting part, the first pipeline is communicated with the second pipeline to form a third passage;
during the use, the entrance of first pipeline is connected with engine intake manifold, the entry linkage carbon tank valve of third pipeline, be equivalent to two one-way desorption valve bodies when the third body uses, first body and second body cooperation department are equivalent to one-way valve body, be equivalent to venturi drive valve body when the second body uses, on the basis of original valve body, greatly with venturi structure and two one-way valve structure integrations, increase a one-way valve structure with first body and second body coupling again, with first body, the second body is integrated into a whole with the third body and is used, two sections pipelines of desorption end and intercooler have been saved, the assembly space of this functional structure in automobile fuel system has been reduced to a great extent, original production technology has been saved greatly, and therefore, the cost is reduced, the performance index is optimized, and the connected mode is simple and is convenient for management and use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a first embodiment of an evaporative emissions system Venturi integration valve of the present invention;
FIG. 2 is a schematic front view of the structure of FIG. 1;
FIG. 3 is a schematic view of the configuration of the first body of the evaporative emissions system Venturi integration valve of the present invention;
FIG. 4 is a schematic diagram of the construction of the second body of the evaporative emissions system Venturi integration valve of the present invention;
FIG. 5 is a schematic view of the third body of the evaporative emissions system Venturi integration valve of the present invention;
FIG. 6 is a schematic bottom view of the structure of FIG. 5;
FIG. 7 is a schematic illustration of the exploded structure of FIG. 1;
FIG. 8 is a schematic structural view of the first body and the snap ring after assembly according to the first embodiment of the present invention;
FIG. 9 is a schematic structural view of the second body and the snap ring after assembly according to the first embodiment of the present invention;
figure 10 is a schematic diagram of the structure of the snap ring in the evaporative emissions system venturi integrated valve of the present invention,
FIG. 11 is a schematic structural diagram of a valve plate in the venturi integration valve of the evaporative emissions system of the present invention;
FIG. 12 is a schematic view of the configuration of the first body of the evaporative emissions system Venturi integration valve of the present invention;
FIG. 13 is a schematic diagram of the sealing ring of the venturi integrated valve of the evaporative emissions system of the present invention;
fig. 14 is a schematic structural view of a connection structure of a second body according to a welding structure in the first embodiment of the present invention;
FIG. 15 is a schematic structural view of a second embodiment of the evaporative emissions system Venturi integration valve of the present invention;
FIG. 16 is a schematic view of the exploded structure of FIG. 15;
fig. 17 is a schematic structural view of a second body in the second embodiment of the present invention;
FIG. 18 is a schematic structural view of a third embodiment of the evaporative emissions system Venturi integration valve of the present invention.
In the figure: 1. a first body; 10. a first cavity; 11. a first pipeline; 111. a first tube outlet end; 12. a first body connecting portion; 13. a first connection portion; 15. a first convex column; 2. a second body; 20. a second cavity; 21. a second pipeline; 22. a second body connecting portion; 23. a second connecting portion; 24. a sensor mount; 241. a fixed part; 242. a connecting portion; 25. a second convex column; 3. a third body; 30. a third cavity; 40. a fourth cavity; 31. a third pipeline; 311. a first outlet end; 312. a second outlet end; 32. a third body connecting portion; 4. a valve plate; 5. a seal ring; 6. a joint; 61. welding a structure; 7. a snap ring; 71. a plug-in part; 72. a containing groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example one
The invention provides an evaporative emission system venturi integrated valve, fig. 1 is a schematic structural diagram of the embodiment, fig. 2 is a schematic front structural diagram of fig. 1, and as shown in fig. 1 and fig. 2, the venturi integrated valve comprises a first body 1, a second body 2 and a third body 3 connected with the first body 1 and the second body 2.
The connection mode of the first body 1, the second body 2 and the third body 3 can adopt connection modes such as clamping, welding and inserting, and the sealing performance of the first body 1, the second body 2 and the third body 3 which are connected stably and can meet the use requirement can be ensured.
Fig. 3 is a schematic front view of the first body in this embodiment, and as shown in fig. 3, the first body 1 is provided with a first pipeline 11, a first body connecting portion 12 and a first connecting portion 13, and a first cavity 10 is provided inside the first body 1, and the first cavity 10 is communicated with the first pipeline 11;
fig. 4 is a schematic structural diagram of the second body in the embodiment, as shown in fig. 4, a second pipeline 21, a second body connecting portion 22 and a second connecting portion 23 are arranged on the second body 2, a second cavity 20 is arranged inside the second body 2, and the second cavity 20 is communicated with the second pipeline 21;
fig. 5 is a schematic structural diagram of a third body of the present embodiment, fig. 6 is a schematic structural diagram of the bottom view of fig. 5, as shown in fig. 5 and fig. 6, a third pipeline 31 and a third body connecting portion 32 are arranged on the third body 3, and a third cavity 30 and a fourth cavity 40 are arranged inside the third body 3, wherein the third pipeline 31 is communicated with the third cavity 30 and the fourth cavity 40;
fig. 7 is an exploded schematic view of the present embodiment, and as shown in fig. 7, when the device is assembled and used, the third body connecting portion 32 is connected to the first body connecting portion 12 and the second body connecting portion 22, and the third body 3 is provided with a baffle structure to stop and protect the joint between the first body connecting portion 12 and the second body connecting portion 22, so as to improve the stability, the practicability and the sealing performance of the overall structure.
The first cavity 10 is communicated with the third cavity 30 to form a first passage, and the second cavity 20 is communicated with the fourth cavity 40 to form a second passage; the first body 1 and the second body 2 are connected by a first connecting portion 13 and a second connecting portion 23, and the first pipeline 11 and the second pipeline 21 are communicated to form a third passage.
When in use, the inlet of the first pipeline 11 is connected with an engine intake manifold, the inlet of the third pipeline 31 is connected with a carbon tank valve, the third body 3 is equivalent to a double one-way desorption valve body when in use, the matching part of the first body 1 and the second body 2 is equivalent to a one-way valve body, the second body 2 is equivalent to a Venturi drive valve body when in use, on the basis of original valve body, it is integrated with venturi structure and two check valve structure greatly, be connected first body 1 with second body 2 again and increase a check valve structure, with first body 1, second body 2 and third body 3 are integrated into a whole and use, save two sections pipelines of desorption end and intercooler, the assembly space of this functional structure in automobile fuel oil system has been reduced to a very big degree, original production technology has been saved greatly, the cost is reduced, the performance index is optimized, and the connected mode is simple and convenient for manage and use.
In this embodiment, the tip of each pipeline all adopts the formula of inserting connection mode soon, and when the use of reality, also can set into the bamboo joint according to the use needs of reality, perhaps other connection modes ensure to connect firmly, the leakproofness can well.
As an optional implementation manner, fig. 8 is a schematic structural view of the first body and the snap ring after assembly, fig. 9 is a schematic structural view of the second body and the snap ring after assembly, as shown in fig. 8 and 9, the snap ring 7 and the valve plate 4 are respectively disposed in the first passage, the second passage, and the third passage, the snap ring 7 is disposed at an end of the first cavity 10, the second cavity 20, and the first connection portion 13, and the valve plate 4 is disposed on the snap ring 7.
Fig. 10 is a schematic structural diagram of the snap ring of this embodiment, fig. 11 is a schematic structural diagram of the valve sheet of this embodiment, as shown in fig. 10 and fig. 11, one side of the snap ring 7 is provided with an insertion portion 71 for being inserted into the first cavity 10, the second cavity 20 and the first connection portion 13, and being effectively matched with the inner side walls of the first cavity 10, the second cavity 20 and the first connection portion 13, and the inner side wall of the snap ring 7 is provided with an accommodating groove 72 for placing one end of the valve sheet 4 in the accommodating groove 72.
As shown in fig. 6, the third pipeline 31 includes a first outlet end 311 and a second outlet end 312, the first outlet end 311 and the second outlet end 312 are respectively communicated with the third cavity 30 and the fourth cavity 40, the size of the valve plate 4 is not smaller than the size of the first outlet end 311 and the second outlet end 312, and by arranging the snap ring 7 and the valve plate 4, the integrated structure plays a role of a one-way check valve, so that the air flow can only flow in through the inlet end of the third pipeline 31 and flow out from the first outlet end 311 and the second outlet end 312 in a one-way manner.
Fig. 12 is a schematic structural view of the first body of the present embodiment, and as shown in fig. 12, the first pipeline 11 includes a first pipeline outlet end 111, and the first pipeline outlet end 111 is disposed to communicate with the first connection portion 13;
the size of valve block 4 sets up to be no less than the size of first pipeline exit end 111, through setting up snap ring 7 and valve block 4. After the first body 1 is matched with the second body 2, the joint of the first body 1 and the second body 2 acts as a one-way check valve, so that the air flow can only flow in through the inlet of the first pipeline 11, and flows out from the outlet end 111 of the first pipeline to the second pipeline 21 of the second body 2 in one way, so as to ensure the one-way flow.
As an optional implementation manner, the sealing device further includes a sealing ring 5, fig. 13 is a schematic structural diagram of the sealing ring in this embodiment, as shown in fig. 13, where the sealing ring 5 is disposed at a connection between the first cavity 10 and the third cavity 30, and between the second cavity 20 and the fourth cavity 40, and plays a role in sealing the two cavities that are communicated.
As an optional implementation manner, a plurality of first convex columns 15 and a plurality of second convex columns 25 are respectively arranged on the inner side walls of the first body 1, the second body 2 and the third body 3; the plurality of first convex columns 15 are uniformly distributed along the circumferential directions of the first cavity 10 and the second cavity 20 respectively; the plurality of second convex columns 25 are respectively and uniformly distributed along the circumferential directions of the third cavity 30 and the fourth cavity 40, and the sealing ring 5 is arranged between the first convex column 15 and the second convex column 25.
Specifically, sealing washer 5 sets up between the tip of first projection 15 and the tip of second projection 25, during the use, when third body 3 is connected with first body 1 and second body 2, arrange the both sides of sealing washer 5 respectively in through first projection 15 and second projection 25, simultaneously again because first projection 15 and second projection 25 set up a plurality ofly along the circumference of cavity, the tip of corresponding first projection 15 and second projection 25 extrudes the effect to sealing washer 5 simultaneously during the use, further ensures sealed reliability.
As an optional implementation manner, one side of the second body 2 is provided with a connecting structure, the connecting structure is communicated with the second pipeline 21, and the connecting structure is used for connecting the air filtering pipeline; the connecting structure is provided as a quick-connect connector 6 or a welding structure 61.
Specifically, the inlets of the quick-connect connector 6 and the second pipeline 21 are respectively arranged on two opposite side surfaces of the second body 2, and the connection mode of the connector 6 and the second body 2 can adopt a laser welding connection mode, an integral welding connection mode or a quick-connect connection mode.
Fig. 14 is a schematic structural diagram of the connection structure of the second body adopting a welding structure, and as shown in fig. 14, the connection structure of the air filtering pipe can also adopt a welding structure 61 to save a quick-connect plug.
As an optional embodiment, the first body connecting portion 12 and the second body connecting portion 22 are both configured to be a snap structure, the third body connecting portion 32 is configured to include a snap groove, the third body connecting portion 32 is connected with the first body connecting portion 12 and the second body connecting portion 22 through the snap groove and the snap, in actual use, the first body connecting portion 12 and the second body connecting portion 22 may also be configured to include a snap groove, the third body connecting portion 32 is configured to be a snap structure, and by configuring the first body connecting portion 12 and the second body connecting portion 22 to be snap-connected with the third body connecting portion 32, the connection manner is simple and convenient, and the connection effect is good.
In particular, the first body connecting portion 12, the second body connecting portion 22 and the third body connecting portion 32 may be connected by welding, for example: vibration friction welding, laser welding, etc. may be employed.
Example two
Fig. 15 is a schematic structural diagram of the present embodiment, and fig. 16 is a schematic structural diagram of an explosion of fig. 15, as shown in fig. 15 and fig. 16, different from the first embodiment, in the present embodiment, a sensor mounting seat 24 is further included, and the sensor mounting seat 24 is disposed on the second body 2, and is used for connecting a pressure sensor, so as to monitor the airflow pressure dynamics at the desorption end in real time and is disposed in communication with the second pipeline 21.
Wherein: fig. 17 is a schematic structural diagram of the second body in the present embodiment, and as shown in fig. 17, the sensor mounting seat 24 is configured to include a fixing portion 241 and a connecting portion 242, one end of the connecting portion 242 is configured to communicate with the second pipeline 21, the other end of the connecting portion 242 is connected to an inlet of the pressure sensor, and the fixing portion 241 is configured to fix the pressure sensor through a connecting member, in the present embodiment, a nut is used as the connecting member.
EXAMPLE III
Fig. 18 is a schematic structural diagram of the present embodiment, and different from the second embodiment, in the present embodiment, the sensor mounting base adopts a connection manner of snap-fit, the fixing portion 241 is disposed on the periphery of the connection portion 242, and the fixing portion 241 includes a snap-fit structure.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. An evaporative emissions system venturi integrated valve characterized by: including first body, second body and with first body, the third body that the second body all is connected, wherein:
the first body is provided with a first pipeline, a first body connecting part and a first connecting part, a first cavity is arranged inside the first body, and the first cavity is communicated with the first pipeline;
the second body is provided with a second pipeline, a second body connecting part and a second connecting part, a second cavity is arranged inside the second body, and the second cavity is communicated with the second pipeline;
the third body is provided with a third pipeline and a third body connecting part, and a third cavity and a fourth cavity are arranged inside the third body, wherein the third pipeline is communicated with the third cavity and the fourth cavity, and the third body is provided with a baffle structure;
the third body connecting part is respectively connected with the first body connecting part and the second body connecting part, the first cavity is communicated with the third cavity to form a first passage, and the second cavity is communicated with the fourth cavity to form a second passage;
the first body and the second body are connected through the first connecting part and the second connecting part, and the first pipeline is communicated with the second pipeline to form a third passage;
the first passage, the second passage and the third passage are internally provided with a clamping ring and a valve block, the clamping ring is arranged at the end parts of the first cavity, the second cavity and the first connecting part, and the valve block is arranged on the clamping ring.
2. The evaporative emissions system venturi integration valve as defined in claim 1 wherein: still include the sensor mount pad, wherein:
the sensor mounting seat is arranged to comprise a fixing portion and a connecting portion, one end of the connecting portion is communicated with the second pipeline, the other end of the connecting portion is connected with an inlet of the pressure sensor, and the fixing portion is used for fixing the pressure sensor through a connecting piece.
3. The evaporative emissions system venturi integration valve as defined in claim 1 wherein: the third pipeline comprises a first outlet end and a second outlet end, and the first outlet end and the second outlet end are respectively communicated with the third cavity and the fourth cavity;
the size of the valve plate is set to be not smaller than the sizes of the first outlet end and the second outlet end.
4. The evaporative emissions system venturi integration valve as defined in claim 3 wherein: the first pipeline comprises a first pipeline outlet end which is communicated with the first connecting part;
the size of the valve plate is set to be not smaller than that of the outlet end of the first pipeline.
5. The evaporative emissions system venturi integration valve as defined in claim 1 or 2 wherein: still include the sealing washer, wherein:
the sealing rings are arranged at the joints of the first cavity and the third cavity as well as the joints of the second cavity and the fourth cavity.
6. The evaporative emissions system venturi integration valve as defined in claim 5 wherein: a plurality of first convex columns and a plurality of second convex columns are respectively arranged on the inner side walls of the first body, the second body and the third body;
the plurality of first convex columns are uniformly distributed along the circumferential directions of the first cavity and the second cavity respectively;
the plurality of second convex columns are uniformly distributed along the circumferential directions of the third cavity and the fourth cavity respectively;
the sealing ring is arranged between the first convex column and the second convex column.
7. The evaporative emissions system venturi integration valve as defined in claim 1 or 2 wherein:
a connecting structure is arranged on one side of the second body, the connecting structure is communicated with the second pipeline, and the connecting structure is used for connecting an air filtering pipeline;
the connecting structure is a quick-connection plug or a welding structure.
8. The evaporative emissions system venturi integration valve as defined in claim 1 or 2 wherein: the first body connecting portion and the second body connecting portion are both arranged to be of a buckle structure, the third body connecting portion is arranged to comprise a clamping groove, and the third body connecting portion is connected with the first body connecting portion and the second body connecting portion through the clamping groove and the buckle.
9. The evaporative emissions system venturi integration valve as defined in claim 2 wherein: the fixing part is arranged on the periphery of the connecting part and comprises a buckling structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011081257.6A CN111980830B (en) | 2020-10-12 | 2020-10-12 | Venturi integrated valve of evaporative emission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011081257.6A CN111980830B (en) | 2020-10-12 | 2020-10-12 | Venturi integrated valve of evaporative emission system |
Publications (2)
| Publication Number | Publication Date |
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| CN111980830A CN111980830A (en) | 2020-11-24 |
| CN111980830B true CN111980830B (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011081257.6A Active CN111980830B (en) | 2020-10-12 | 2020-10-12 | Venturi integrated valve of evaporative emission system |
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| CN (1) | CN111980830B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9605625B2 (en) * | 2013-12-19 | 2017-03-28 | Continental Automotive Systems, Inc. | High performance vacuum venturi pump |
| BR112019005619A2 (en) * | 2016-09-21 | 2019-06-18 | Dayco Ip Holdings Llc | internal gate valve to a venturi opening of a venturi device for vacuum production |
| CN207153152U (en) * | 2017-08-26 | 2018-03-30 | 北京欣维尔玻璃仪器有限公司 | Sublimation apparatus |
| CN207554221U (en) * | 2017-10-20 | 2018-06-29 | 河北博可耐特汽车零部件有限公司 | Suitable for the venturi four-way pipe of automobile burning system |
| CN207686868U (en) * | 2017-12-15 | 2018-08-03 | 江西腾勒动力有限公司 | A kind of novel double check valve structure |
| 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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2020
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| CN111980830A (en) | 2020-11-24 |
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