CN103195616A - Fuel steam check valve - Google Patents
Fuel steam check valve Download PDFInfo
- Publication number
- CN103195616A CN103195616A CN2013101456977A CN201310145697A CN103195616A CN 103195616 A CN103195616 A CN 103195616A CN 2013101456977 A CN2013101456977 A CN 2013101456977A CN 201310145697 A CN201310145697 A CN 201310145697A CN 103195616 A CN103195616 A CN 103195616A
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- fuel
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- upper shell
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Abstract
The invention discloses a fuel steam check valve which comprises an upper shell (21), a lower shell (22) and a sealing valve plate (23), wherein when fuel steam enters a first central hole (31) and flows through a first vent through hole (32), the fuel steam ensures that the sealing valve plate (23) is contacted with the bottom end of the lower shell (22), and the fuel steam is discharged through a second vent through hole (42) and a second central hole (41); and when the fuel steam enters the second central hole (41) and flows through the second vent through hole (42), the fuel steam ensures that the sealing valve plate (23) is contacted with the bottom end of the upper shell (21), and the sealing valve plate (23) seals the second vent through hole (32). The fuel steam check valve ensures that the fuel steam is conveyed in a single direction and is prevented from refluxing and has good manufacturability of quick connection and dismounting, more fuel steam can be prevented from being discharged into the air while the economical performance of the fuel is improved, and an environmental protection effect can be realized.
Description
Technical field
The present invention relates to automobile technical field, relate in particular to a kind of fuel-steam one-way valve.
Background technique
At present, fuel steam discharge control system EVAP all is equipped with on the automobile, at present common fairly simple fuel evaporation control system mainly is made up of fuel tank, charcoal canister, Valve EGR and various automobile pipeline assemblies (desorption pipe) etc. as shown in Figure 1.Fuel evaporation control system (EVAP) can be stored the fuel vapor (HC) that oil-fired system produces; stop fuel vapor to be leaked in the atmosphere; simultaneously the fuel vapor of collecting is in time sent into intake manifold, and enter engine combustion after normal mixed gas mixes, fuel oil is fully used.
Usually, the desorption pipe assembly plays the effect that connects canister and motor connection.Be installed in a kind of fuel-steam one-way valve on the motor, its the other end links to each other with desorption pipe by quick inserting joint, the fuel-steam one-way valve guarantees fuel-steam flow direction engine and fully burning, stop fuel-steam to reflux, EVAP plays effective guarantee and supplementary function to the fuel steam discharge control system.
At present, fuel-steam one-way valve in the EVAP system mostly is the desorption solenoid electric valve, or realize fuel-steam is flowed to and flow control by the control valve assembly that is integrated in the canister, but being back to desorption pipe, in-engine fuel-steam do not have excellent control effect.Also have and adopt the control valve that can directly link to each other with canister to realize the effect that fuel-steam is led in some systems, but because control valve is used for flow control, do not have the effect of reverse sealing more.Therefore, need a kind of novel fuel-steam one-way valve, directly be connected on the motor, and connect canister, can satisfy guiding and traffic requirement, guarantee oppositely sealing fuel-steam simultaneously.
Summary of the invention
In view of this, the technical problem that the present invention will solve provides a kind of fuel-steam one-way valve, and the unidirectional conveying of fuel-steam and resistance fuel-steam processed are refluxed.
A kind of fuel-steam one-way valve comprises: upper shell 21, lower shell body 22 and sealing valve block 23; Fixedlying connected with the top of described lower shell body 22 in the bottom of described upper shell 21, and forms cavity 25 between described upper shell 21 and described lower shell body 22; First center hole 31 is set on the top of described upper shell 21, in the bottom of described upper shell 21 first exhaust hole 32 that communicates with described first center hole 31 is set, and in the bottom of described upper shell 21 locating column 33 is set; Second center hole 41 is set in the bottom of described lower shell body 22, second exhaust hole 42 that communicates with described second center hole 41 is set on the top of described lower shell body 22, and the positioning hole 43 that matches with described locating column 33 in the setting of the top of described lower shell body 42; Described sealing valve block 23 is arranged in the described cavity 25, and the central through bore that arranges at described sealing valve block 23; Described central through bore is enclosed within on the described locating column 33, and with described locating column 33 Spielpassung; Wherein, when fuel-steam enter described first center hole 31, and during by described first exhaust hole 32, fuel-steam makes described sealing valve block 23 contact with the bottom of described lower shell body 22, and fuel-steam is discharged by described second exhaust hole 42 and described second center hole 41; When fuel-steam enters described second center hole 41, and during by described second exhaust hole 42, fuel-steam makes described sealing valve block 23 contact with the bottom of described upper shell 21, and described sealing valve block 23 seals described first exhaust hole 32.
According to one embodiment of present invention, further, also comprise seal ring 24; Excircle at described lower shell body 22 arranges groove 45; Described seal ring 24 is arranged in the described groove 45.
According to one embodiment of present invention, further, 5 first exhaust holes 32 are set in the bottom of described upper shell 21, and described 5 first exhaust holes 32 communicate with described first center hole 31 all.
According to one embodiment of present invention, further, 3 second exhaust holes 42 are set on the top of described lower shell body 22, and described 3 second exhaust holes 42 communicate with described second center hole 41 all.
According to one embodiment of present invention, further, the material of described upper shell 21 and described lower shell body 22 all is plastics.
According to one embodiment of present invention, further, the bottom of described upper shell 21 comprises with the mode of fixedlying connected in the top of described lower shell body 22: ultra-sonic welded.
According to one embodiment of present invention, further, the material of described sealing valve block 23 and described seal ring 24 all is fluorine silica gel.
According to one embodiment of present invention, further, the excircle in described lower shell body 22 bottoms arranges outside thread.
Fuel-steam one-way valve of the present invention, the unidirectional conveying of fuel-steam and resistance fuel-steam processed are refluxed, and have the good process of quick connection and dismounting, avoiding more when improving fuel economy, the multiple fuel discharge of steam plays the effect of environmental protection to atmosphere.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic representation of EVAP of the prior art system;
Fig. 2 A to 2E is the schematic representation according to an embodiment of fuel-steam one-way valve of the present invention;
Wherein, Fig. 2 A is the schematic representation of fuel-steam one-way valve, Fig. 2 B is the plan view of the upper shell of fuel-steam one-way valve, Fig. 2 C is the worm's eye view of the upper shell of fuel-steam one-way valve, Fig. 2 D is the plan view of the lower shell body of fuel-steam one-way valve, and Fig. 2 E is the plan view of the lower shell body of fuel-steam one-way valve.
Embodiment
With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention wherein is described.Below in conjunction with the accompanying drawing in the embodiment of the invention, the technological scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment who obtains under the creative work prerequisite.Below in conjunction with figure and embodiment technological scheme of the present invention is carried out many-sided description.
Fig. 2 A to 2E is the schematic representation according to an embodiment of fuel-steam one-way valve of the present invention.As shown in the figure: the fuel-steam one-way valve, also can be called the fuel-steam vacuum check valve, comprising: upper shell 21, lower shell body 22 and sealing valve block 23.
Fixedlying connected with the top of lower shell body 22 in the bottom of upper shell 21, and forms cavity 25 between upper shell 21 and lower shell body 22.
When fuel-steam during through first center hole 31 and first exhaust hole 32, fuel-steam has certain pressure, fuel-steam makes sealing valve block 23 contact with the bottom of lower shell body 22, sealing valve block 23 can not seal or complete closed second exhaust hole 42, and fuel-steam is discharged by second exhaust hole 42 and second center hole 41.
When fuel-steam during through second center hole 41 and second exhaust hole 42, fuel-steam has certain pressure, and fuel-steam makes sealing valve block 23 contact with the bottom of upper shell 21, seals valve block 23 and seals first exhaust hole 32.At this moment, fuel-steam will can not carried fully.
Fuel-steam one-way valve of the present invention directly is connected on the motor, and is used for connecting canister etc., can satisfy guiding and traffic requirement, guarantees oppositely sealing simultaneously.
It is convenient that " first " among the present invention, " second " etc. only are used for describing, and do not have other special implication.It is convenient that " top ", " bottom " etc. are used for describing, and is the direction of accompanying drawing.
According to one embodiment of present invention, the excircle at lower shell body 22 arranges groove 45.Seal ring 24 is arranged in the groove 45.
According to one embodiment of present invention, 5 first exhaust holes 32 are set in the bottom of upper shell 21, and 5 first exhaust holes 32 communicate with first center hole 31 all.The quantity of first exhaust hole, shape etc. can design according to actual conditions.
According to one embodiment of present invention, further, 3 second exhaust holes 42 are set on the top of lower shell body 22, and 3 second exhaust holes 42 communicate with second center hole 41 all.The quantity of second exhaust hole, shape etc. can design according to actual conditions.
According to one embodiment of present invention, the material of upper shell 21 and lower shell body 22 all is plastics, also can be materials such as stainless steel.
According to one embodiment of present invention, the bottom of upper shell 21 mode of fixedlying connected with the top of lower shell body 22 comprises: ultra-sonic welded.Ultra-sonic welded is also referred to as ultrasonic welding, refers to thermoplastic under the ultrasonic vibration effect, owing to frictional heat between surface molecular makes two plastically weldings welding method together.
The bottom of upper shell 21 and the top of lower shell body 22 also can adopt mode such as be threaded, buckle is connected fixedly connected.
According to one embodiment of present invention, upper and lower half shell is when carrying out ultrasonic welding, and its structure is that the round boss 34 of upper shell setting cooperates with the wedge-shaped impression 44 of lower shell body setting, in the contacting point welding of round boss 34 with wedge-shaped impression 44.
The one-way function of fuel-steam one-way valve is by sealing valve block and upper and lower half shell and locating column realization.Lower half shell has supporting surface and stiffening rib.The sealing loop wire is arranged on the sealing surface of upper half shell, and sealing surface is recessed conical camber, is the guide pillar of sealing valve block at the center of upper half shell bottom.
The top design of lower half shell has location cylinder 43, and cylinder 43 links to each other with four stiffening ribs of endoporus periphery, and there are 15 ° of certain angles in stiffening rib and horizontal plane.
According to one embodiment of present invention, the material of sealing valve block 23 and seal ring 24 all is fluorine silica gel, or other rubber material.
According to one embodiment of present invention, the excircle in lower shell body 22 bottoms arranges outside thread, can be used for the scyewed joint with motor.Fuel-steam one-way valve upper half shell is designed to male connector, can realize connecting fast with the fast negative joint of inserting.
According to one embodiment of present invention, when the excircle in lower shell body 22 bottoms arranged the scyewed joint of outside thread and motor, seal ring 24 matched with the motor fitting surface, can guarantee the sealing requirements that valve body connects with motor.
According to one embodiment of present invention, sealing valve block 23 cooperates the closing function of opening of realizing one-way valve with upper and lower half shell fitting surface.By ultrasonic welding, guarantee the sealing in the valve body between upper and lower half shell.
Whole fuel-steam one-way valve entire body is used plastic material, and for example, the material of upper and lower half shell is PA66.The flame resistance of the material of all parts and mechanicalness are all very good, can guarantee that the fuel-steam one-way valve normally uses between-40 ℃ to 150 ℃.
The top of the upper half shell of fuel-steam one-way valve of the present invention is male connector, can realize inserting the quick of negative joint and connecting with fast, guarantees sealing simultaneously and is convenient to fast quick-detach, the joint structure that solves valve in the past and inconvenience and sealing problem on pipeline connects.
Be under the condition of fuel-steam at interior media, the vacuum seal valve block open and close that utilizes of fuel-steam one-way valve of the present invention realizes to the water conservancy diversion of fuel-steam and oppositely by control, and valve lower end design worm structure links to each other with motor, has directly solved former control valve in the problem that oppositely stops fuel-steam sealing difference.
Fuel-steam one-way valve of the present invention has stoped the backflow of fuel-steam, the other end of valve can be realized connecting fast and dismounting simultaneously, the operability of mounting process is provided, and the Economy that can improve fuel oil avoids simultaneously more that the multiple fuel discharge of steam plays the effect of environmental protection to atmosphere.
Description of the invention provides for example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiments that have various modifications that the present invention's design is suitable for special-purpose.
Claims (8)
1. a fuel-steam one-way valve is characterized in that, comprising:
Upper shell (21), lower shell body (22) and sealing valve block (23);
Fixedlying connected with the top of described lower shell body (22) in the bottom of described upper shell (21), and forms cavity (25) between described upper shell (21) and described lower shell body (22);
On the top of described upper shell (21) first center hole (31) is set, bottom at described upper shell (21) arranges first exhaust hole (32) that communicates with described first center hole (31), and in the bottom of described upper shell (21) locating column (33) is set;
In the bottom of described lower shell body (22) second center hole (41) is set, second exhaust hole (42) that communicates with described second center hole (41) is set on the top of described lower shell body (22), and the positioning hole (43) that matches with described locating column (33) in the setting of the top of described lower shell body (42); Described sealing valve block (23) is arranged in the described cavity (25), and the central through bore that arranges at described sealing valve block (23); Described central through bore is enclosed within on the described locating column (33), and with described locating column (33) Spielpassung;
Wherein, when fuel-steam enter described first center hole (31), and when described first exhaust hole (32), fuel-steam makes described sealing valve block (23) contact with the bottom of described lower shell body (22), and fuel-steam is discharged by described second exhaust hole (42) and described second center hole (41);
When fuel-steam enter described second center hole (41), and when described second exhaust hole (42), fuel-steam makes described sealing valve block (23) contact with the bottom of described upper shell (21), and, described sealing valve block (23) sealing described first exhaust hole (32).
2. fuel-steam one-way valve as claimed in claim 1 is characterized in that:
Also comprise seal ring (24);
Excircle at described lower shell body (22) arranges groove (45); Described seal ring (24) is arranged in the described groove (45).
3. fuel-steam one-way valve as claimed in claim 2 is characterized in that:
In the bottom of described upper shell (21) 5 first exhaust holes (32) are set, and described 5 first exhaust holes (32) communicate with described first center hole (31) all.
4. fuel-steam one-way valve as claimed in claim 3 is characterized in that:
On the top of described lower shell body (22) 3 second exhaust holes (42) are set, and described 3 second exhaust holes (42) communicate with described second center hole (41) all.
5. fuel-steam one-way valve as claimed in claim 4 is characterized in that:
The bottom of described upper shell (21) comprises with the mode of fixedlying connected in the top of described lower shell body (22): ultra-sonic welded.
6. as any described fuel-steam one-way valve of claim 1 to 5, it is characterized in that:
The material of described upper shell (21) and described lower shell body (22) all is plastics.
7. as any described fuel-steam one-way valve of claim 1 to 5, it is characterized in that:
The material of described sealing valve block (23) and described seal ring (24) all is fluorine silica gel.
8. as any described fuel-steam one-way valve of claim 1 to 5, it is characterized in that:
Excircle in described lower shell body (22) bottom arranges outside thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310145697.7A CN103195616B (en) | 2013-04-24 | 2013-04-24 | A kind of fuel steam check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310145697.7A CN103195616B (en) | 2013-04-24 | 2013-04-24 | A kind of fuel steam check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103195616A true CN103195616A (en) | 2013-07-10 |
| CN103195616B CN103195616B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310145697.7A Active CN103195616B (en) | 2013-04-24 | 2013-04-24 | A kind of fuel steam check valve |
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| Country | Link |
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| CN (1) | CN103195616B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020439A (en) * | 2014-04-25 | 2015-11-04 | 上海亚大汽车塑料制品有限公司 | One-way valve |
| CN105464845A (en) * | 2016-01-19 | 2016-04-06 | 河北亚大汽车塑料制品有限公司 | Fuel steam venturi connector and fuel steam discharging control system |
| CN105508085A (en) * | 2016-01-19 | 2016-04-20 | 河北亚大汽车塑料制品有限公司 | Fuel steam Venturi valve and fuel steam discharging control system |
| CN108999674A (en) * | 2018-10-08 | 2018-12-14 | 河北亚大汽车塑料制品有限公司 | A kind of unidirectional Pcv valve of integrated form |
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| EP1703183A1 (en) * | 2005-03-18 | 2006-09-20 | Carl Freudenberg KG | Check valve |
| CN101881351A (en) * | 2010-07-14 | 2010-11-10 | 厦门松霖科技有限公司 | Non-return device for flow regulation |
| CN101881225A (en) * | 2010-06-17 | 2010-11-10 | 重庆长安汽车股份有限公司 | Check valve for engine |
| CN201771632U (en) * | 2010-04-06 | 2011-03-23 | 浙江吉利汽车研究院有限公司 | Three-way valve of activated carbon tank of automobile |
| CN202561159U (en) * | 2012-05-10 | 2012-11-28 | 杨大玮 | Elastic soft seal adjusting valve |
| CN203335286U (en) * | 2013-04-24 | 2013-12-11 | 河北亚大汽车塑料制品有限公司 | Fuel oil steam one-way valve |
-
2013
- 2013-04-24 CN CN201310145697.7A patent/CN103195616B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1703183A1 (en) * | 2005-03-18 | 2006-09-20 | Carl Freudenberg KG | Check valve |
| CN201771632U (en) * | 2010-04-06 | 2011-03-23 | 浙江吉利汽车研究院有限公司 | Three-way valve of activated carbon tank of automobile |
| CN101881225A (en) * | 2010-06-17 | 2010-11-10 | 重庆长安汽车股份有限公司 | Check valve for engine |
| CN101881351A (en) * | 2010-07-14 | 2010-11-10 | 厦门松霖科技有限公司 | Non-return device for flow regulation |
| CN202561159U (en) * | 2012-05-10 | 2012-11-28 | 杨大玮 | Elastic soft seal adjusting valve |
| CN203335286U (en) * | 2013-04-24 | 2013-12-11 | 河北亚大汽车塑料制品有限公司 | Fuel oil steam one-way valve |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020439A (en) * | 2014-04-25 | 2015-11-04 | 上海亚大汽车塑料制品有限公司 | One-way valve |
| CN105020439B (en) * | 2014-04-25 | 2017-12-08 | 上海亚大汽车塑料制品有限公司 | Check valve |
| CN105464845A (en) * | 2016-01-19 | 2016-04-06 | 河北亚大汽车塑料制品有限公司 | Fuel steam venturi connector and fuel steam discharging control system |
| CN105508085A (en) * | 2016-01-19 | 2016-04-20 | 河北亚大汽车塑料制品有限公司 | Fuel steam Venturi valve and fuel steam discharging control system |
| CN108999674A (en) * | 2018-10-08 | 2018-12-14 | 河北亚大汽车塑料制品有限公司 | A kind of unidirectional Pcv valve of integrated form |
| CN108999674B (en) * | 2018-10-08 | 2023-09-15 | 河北亚大汽车塑料制品有限公司 | Integrated one-way PCV valve |
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| Publication number | Publication date |
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| CN103195616B (en) | 2016-04-13 |
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