CN101876377A - Oil overflow cut-off valve - Google Patents
Oil overflow cut-off valve Download PDFInfo
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- CN101876377A CN101876377A CN2009101071643A CN200910107164A CN101876377A CN 101876377 A CN101876377 A CN 101876377A CN 2009101071643 A CN2009101071643 A CN 2009101071643A CN 200910107164 A CN200910107164 A CN 200910107164A CN 101876377 A CN101876377 A CN 101876377A
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- oil
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- return
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Abstract
The invention relates to an oil overflow cut-off valve, which comprises a valve body, a valve cover, an elastic part and a floating plug body. The valve body is provided with a cavity and an oil gas passage which is communicated with an oil gas valve port; one end of the valve body is provided with an opening, and the other end of the valve body is provided with the oil gas valve port; the valve cover covers the opening of the valve body; the floating plug body is arranged in the cavity of the valve body and is movably supported on the valve cover through the elastic part; and the top of the floating plug body is provided with a valve plug for closing or opening the oil gas valve port. The oil overflow cut-off valve is characterized in that: the valve body has an oil return structure on which the oil gas valve port is formed; and the oil return structure is also provided with at least one oil return hole. The oil overflow cut-off valve can make fuel oil spilled from the oil gas valve port return to the valve body through the oil return hole and finally return to an oil tank, so that an evaporative emission system can still effectively and normally operate, the fuel oil is saved, the driving fuel economy is improved and the environmental pollution is reduced.
Description
Technical field
The present invention relates to a kind of motor vehicle oil tank anti-dumping oil spilling device, relate more specifically to a kind of oil spilling cut-off valve.
Background technique
In order to prevent that Motor Vehicle from tilting or when overturning, the problem that oil plant leaks takes place, generally all can be on the oil gas vent and the fairway between the activated carbon canister of motor vehicle oil tank, install an oil spilling cut-off valve, in the hope of when Motor Vehicle is toppled over, can mat oil spilling cut-off valve be closed by above-mentioned fairway blocking-up, take place to prevent the situation that oil plant leaks.
At present, the oil spilling cut-off valve generally is installed in the higher position of fuel tank, owing to be subjected to the restriction in vehicle body space, the mounting point of the activated carbon canister of most of vehicle is lower than the position of oil spilling cut-off valve gas channel, or the pipeline that connects between oil spilling cut-off valve and the charcoal canister is lower than the position of oil spilling cut-off valve gas channel, so, when the fuel oil in the fuel tank too much or the fuel oil in the fuel tank when taking place acutely to rock, fuel oil in the fuel tank can spill from the oil gas valve port of oil spilling cut-off valve and be entered the pipeline of discharge vaporization system and resulted in blockage by gas channel, cause oily vapours in the fuel tank charcoal canister of can not flowing through, or can flow directly into charcoal canister from the fuel oil that the oil gas valve port spills, reduce the ability to work of active carbon greatly, cause the discharge vaporization system can not be normal, effectively operation, and then cause the befouling environment that leaks of oily vapours, and because fuel oil spills and can't reclaim, this just causes the waste of the energy.
Summary of the invention
At above-mentioned existence when the fuel oil in the fuel tank too much or the fuel oil in the fuel tank when taking place acutely to rock, fuel oil in the fuel tank can spill from the oil gas valve port of oil spilling cut-off valve and enter the pipeline of discharge vaporization system and the technical problem that results in blockage by gas channel, the invention provides a kind of oil spilling cut-off valve simple in structure, the fuel flow returns that spills from the oil gas valve port of oil spilling cut-off valve can be made, and gas channel can be do not stopped up.
A kind of oil spilling cut-off valve, comprise valve body, valve gap, elastic component and floating plug body, described valve body has a cavity and an end opening, and the other end of described valve body has an oil gas valve port, and the gas channel that is communicated with described oil gas valve port, described valve gap covers the opening of described valve body; Described floating plug body is arranged in the cavity of valve body, and be supported in movably on the described valve gap by an elastic component, described floating plug body top has a valve plug that is used to seal or open described oil gas valve port, wherein, described valve body has an oil return structure, described oil gas valve port is arranged on the described oil return structure, also is provided with at least one spill port on the described oil return structure.
Oil spilling cut-off valve provided by the invention, simple in structure, only be provided with an oil return structure at valve body, the oil gas valve port is arranged on the described oil return structure, the more important thing is on the oil return structure, also to be provided with at least one spill port.When the fuel oil in the fuel tank too much or the fuel oil in the fuel tank when taking place acutely to rock, the fuel oil that sputters from the oil gas valve port can drop in the oil-return groove of oil return structure, and be back in the valve body by spill port, finally be back to fuel tank, and can not enter the pipeline of discharge vaporization system and result in blockage by gas channel, or can flow into charcoal canister, so just avoided the oily vapours in the fuel tank can not flow through charcoal canister or the generation of the situation that can't be absorbed by the active carbon in the charcoal canister, both saved fuel oil, improved the driving fuel economy, also avoided pollution simultaneously environment.
Description of drawings
The structure cross-sectional schematic of a kind of oil spilling cut-off valve that Fig. 1 provides for an embodiment of the present invention.
The structure cross-sectional schematic of a kind of oil spilling cut-off valve that Fig. 2 provides for the another kind of embodiment of the present invention.
The structure cross-sectional schematic of a kind of oil spilling cut-off valve that Fig. 3 provides for the another kind of embodiment of the present invention.
The structure cross-sectional schematic of a kind of oil spilling cut-off valve that Fig. 4 provides for the another kind of embodiment of the present invention.
The A-A cross section enlarged view of a kind of oil return structure of a kind of oil spilling cut-off valve that Fig. 5 provides for the another kind of embodiment of the present invention.
The A-A cross section enlarged view of the another kind of oil return structure of a kind of oil spilling cut-off valve that Fig. 6 provides for the another kind of embodiment of the present invention.
Embodiment
In order to make purpose of the present invention, technological scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
As shown in Figures 1 to 4, a kind of oil spilling cut-off valve, comprise valve body 1, valve gap 2, elastic component 7 and floating plug body 3, described valve body 1 has a cavity 4 and an end opening, the gas channel 6 that the other end of described valve body 1 has an oil gas valve port 5 and is communicated with described oil gas valve port 5, described valve gap 2 covers the opening of described valve body 1; Described floating plug body 3 is arranged in the cavity 4 of valve body 1, and be supported in movably on the described valve gap 2 by elastic component 7, described floating plug body 3 tops have a valve plug 8 that is used to seal or open described oil gas valve port 5, wherein, described valve body 1 has an oil return structure 9, described oil gas valve port 5 is arranged on the described oil return structure 9, also is provided with at least one spill port 10 on the described oil return structure 9.Also be provided with several inlet holes 13 on the described valve gap 2.
Described elastic component 7 can be spring or rubber parts, can realize floating plug body 3 is supported on the valve gap 2 movably getting final product.In the present embodiment, described elastic component 7 is preferably spring, and described floating plug body 3 has an inner chamber 14, and this inner chamber 14 is formed with a cylindrical portion 15, and described spring 7 one ends are sheathed on the cylindrical portion 15, and the other end is fixedly set on the described valve gap 2.
Described oil return structure 9 has an oil-return groove 11 and valve plug chamber 12, and described oil-return groove 11 is arranged at the outside in valve plug chamber 12.
As shown in Figure 1, a kind of embodiment of the present invention, described oil-return groove 11 is an annular, and its cross section roughly is the U type.Described oil-return groove 11 comprises first annular wall 111, second annular bottom wall 112 and the 3rd annular wall 113, and described first annular wall 111, second annular bottom wall 112 and the 3rd annular wall 113 connect in turn; Described valve plug chamber 12 comprises the 3rd annular wall 113 and the 4th upper wall 114 that is connected with the 3rd annular wall 113, and described oil gas valve port 5 is arranged on the 4th upper wall 114.
Described spill port 10 is arranged at second annular bottom wall 112 of described oil return structure 9 and the joint 116 that the 3rd annular wall 113 forms.Described spill port 10 is arranged at joint 116, promptly be positioned at the bottom of annular oil-return groove 11, with realize when the fuel oil in the fuel tank too much or the generation of the fuel oil in the fuel tank when acutely rocking, the fuel oil that sputters from oil spilling cut-off valve oil gas valve port 5 drops in the oil-return groove 11 of oil return structure, and finally passes through spill port 10 fuel flow returns to valve body 1.As a kind of optimal way, described spill port 10 is arranged at the side away from gas channel 6 of the joint 116 of described oil return structure 9, so can avoid when fuel tank during toward gas channel 6 lopsidedness of oil spilling cut-off valve, after fuel oil enters annular oil-return groove 11 from spill port 10, can not make fuel oil enter gas channel 6 toward gas channel 6 lopsidedness because of the oil spilling cut-off valve.Described spill port 10 is set to one and gets final product, and just can satisfy the backflow of fuel oil.
Described second annular bottom wall 112 is wedge shape, and the internal surface that is positioned at oil-return groove 11 1 sides 115 edge first annular wall 111 to the 3rd annular wall 113 of second annular bottom wall 112 tilt from high to low; Second annular bottom wall 112 is provided with collection and the backflow that helps being splashed into the fuel oil of oil-return groove 11 for this kind structure.
Described valve plug chamber 12 roughly is trapezoid shaped, suitable with valve plug 8 shapes of described floating plug body 3, when vehicle run-off the straight or overturning, floating plug body 3 upwards floats, cause valve plug 8 to move up, valve plug 8 leans with the joint 16 of oil return structure 9, seals described valve plug chamber 12, and then oil gas valve port 5 all is closed with spill port 10.The upper surface of the upper surface of described the 4th upper wall 114 and the conduit wall 117 that is connected with the 3rd annular wall 113 of described gas channel 6 is on same horizontal plane.Certainly, the upper surface of described the 4th upper wall 114 can be more lower slightly than the upper surface of the conduit wall 117 that is connected with the 3rd annular wall 113 of described gas channel 6.
Certainly, described oil-return groove 11 might not comprise described first annular wall 111, second annular bottom wall 112 and the 3rd annular wall 113; Be other two kinds of different embodiments of the present invention as shown in Figures 2 and 3, described oil-return groove 11 is roughly U type, comprises two annular wall, i.e. the 3rd annular wall 113 and an exterior annular wall, the sectional shape of described exterior annular wall can be different shapes, as lineal shape or arc.Above-mentioned two annular wall bottom interconnects the back and forms oil-return groove 11, and described spill port 10 is arranged on the bottom of oil-return groove 11.
As shown in Figure 4, another kind of embodiment of the present invention, described oil return structure 9 has an oil-return groove 11 and valve plug chamber 12, and described valve plug chamber 12 is formed by valve plug chamber ring wall 118 and valve plug chamber upper wall 200, and described oil gas valve port 5 is arranged on the valve plug chamber upper wall 200.Described oil-return groove 11 comprises a part, oil-return groove diapire 119 and the oil-return groove sidewall 201 of valve plug chamber ring wall 118, and a part, oil-return groove diapire and the oil-return groove sidewall of described valve plug chamber ring wall connect in turn.Described oil-return groove 11 is between oil gas valve port 5 and gas channel 6.
Described spill port 10 is arranged at the part of valve plug chamber ring wall 118 of described oil return structure 9 and the joint of oil-return groove diapire 119, promptly be to be positioned at described oil-return groove 11 bottoms, with realize when the fuel oil in the fuel tank too much or the generation of the fuel oil in the fuel tank when acutely rocking, the fuel oil that sputters from oil spilling cut-off valve oil gas valve port 5 drops in the oil-return groove 11 of oil return structure, and finally passes through spill port 10 fuel flow returns to valve body 1.
As shown in Figure 5 and Figure 6, be respectively two kinds of different structures of the present invention's middle oil return structure embodiment illustrated in fig. 4.Described oil-return groove sidewall 201 is corresponding to the part of valve plug chamber ring wall 118, and described oil-return groove sidewall 201 two ends are connected with valve plug chamber ring wall 118, can form respectively to be semi-round ring shape oil-return groove (as shown in Figure 5) or to be half moon-shaped oil-return groove (as shown in Figure 6).The expansion that stretches out along gas channel 6 both sides of described oil-return groove 11 can fully drop in the oil-return groove 11 fuel oil that sputters from oil spilling cut-off valve oil gas valve port 5.
Described oil-return groove diapire 119 is wedge shape, and the internal surface edge oil-return groove sidewall 201 that is positioned at oil-return groove 11 1 sides to the valve plug chamber ring wall 118 of oil-return groove diapire 119 tilts from high to low; Oil-return groove diapire 119 is provided with collection and the backflow that helps being splashed into the fuel oil of oil-return groove 11 for this kind structure.
Because the oil spilling cut-off valve that two kinds of embodiments of the present invention provide has oil return structure 9, when the fuel oil in the fuel tank too much or the fuel oil in the fuel tank when taking place acutely to rock, the fuel oil that sputters from oil spilling cut-off valve oil gas valve port 5 can drop in the oil-return groove 11 of oil return structure, and be back in the valve body 1 by spill port 10, finally be back to fuel tank, and can not enter the pipeline of discharge vaporization system and result in blockage by gas channel 6, or can flow into charcoal canister, so just avoided the oily vapours in the fuel tank can not flow through charcoal canister or the generation of the situation that can't be absorbed by the active carbon in the charcoal canister, make the discharge vaporization system can be normal, effectively operation, both saved fuel oil, improved the driving fuel economy, also avoided pollution simultaneously environment.
Above embodiment is the unrestricted technological scheme of the present invention in order to explanation only, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the present invention, the any modification or partial replacement that does not break away from the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (11)
1. oil spilling cut-off valve, comprise valve body, valve gap, elastic component and floating plug body, described valve body has a cavity and an end opening, and the other end of described valve body has an oil gas valve port, and the gas channel that is communicated with described oil gas valve port, described valve gap covers the opening of described valve body; Described floating plug body is arranged in the cavity of valve body, and be supported in movably on the described valve gap by elastic component, described floating plug body top has a valve plug that is used to seal or open described oil gas valve port, it is characterized in that: described valve body has an oil return structure, described oil gas valve port is arranged on the described oil return structure, also is provided with at least one spill port on the described oil return structure.
2. oil spilling cut-off valve as claimed in claim 1 is characterized in that: described oil return structure has an oil-return groove and valve plug chamber, and described oil-return groove is arranged at the outside in valve plug chamber.
As right with asking 2 described oil spilling cut-off valves, it is characterized in that: described oil-return groove is annular, and its cross section roughly is the U type.
4. oil spilling cut-off valve as claimed in claim 3 is characterized in that: described oil-return groove comprises first annular wall, second annular bottom wall and the 3rd annular wall, and described first annular wall, second annular bottom wall and the 3rd annular wall connect in turn; Described valve plug chamber comprises the 3rd annular wall and the 4th upper wall that is connected with the 3rd annular wall; Described oil gas valve port is arranged on the 4th upper wall.
5. oil spilling cut-off valve as claimed in claim 4 is characterized in that: described second annular bottom wall is wedge shape, and the internal surface edge that is positioned at oil-return groove one side first annular wall to the three annular wall of second annular bottom wall tilt from high to low.
6. oil spilling cut-off valve as claimed in claim 4 is characterized in that: described spill port is arranged at second annular bottom wall of described oil return structure and the joint that the 3rd annular wall forms.
7. oil spilling cut-off valve as claimed in claim 2 is characterized in that: described spill port is arranged at the side away from gas channel of the joint of described oil return structure.
8. oil spilling cut-off valve as claimed in claim 2 is characterized in that: described oil-return groove is between oil gas valve port and gas channel.
9. oil spilling cut-off valve as claimed in claim 2 is characterized in that: described valve plug chamber comprises valve plug chamber ring wall and the valve plug chamber upper wall that is connected with valve plug chamber ring wall; Described oil-return groove comprises a part, oil-return groove diapire and the oil-return groove sidewall of valve plug chamber ring wall, and a part, oil-return groove diapire and the oil-return groove sidewall of described valve plug chamber ring wall connect in turn; Described oil gas valve port is arranged on the upper wall of valve plug chamber.
10. oil spilling cut-off valve as claimed in claim 9 is characterized in that: described spill port is arranged at the part of valve plug chamber ring wall of described oil return structure and the joint of oil-return groove diapire.
11. oil spilling cut-off valve as claimed in claim 9 is characterized in that: described oil-return groove diapire is wedge shape, and internal surface edge oil-return groove sidewall to the valve plug chamber ring wall that is positioned at oil-return groove one side of oil-return groove diapire tilts from high to low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910107164A CN101876377B (en) | 2009-04-30 | 2009-04-30 | Oil overflow cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910107164A CN101876377B (en) | 2009-04-30 | 2009-04-30 | Oil overflow cut-off valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101876377A true CN101876377A (en) | 2010-11-03 |
| CN101876377B CN101876377B (en) | 2012-09-26 |
Family
ID=43019004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910107164A Active CN101876377B (en) | 2009-04-30 | 2009-04-30 | Oil overflow cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101876377B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102229320A (en) * | 2011-04-19 | 2011-11-02 | 孙达立 | Oil spillage cutoff valve |
| CN113833888A (en) * | 2021-11-03 | 2021-12-24 | 亚普汽车部件股份有限公司 | Compact high pressure reopen valve for vehicle fuel tank |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2233010Y (en) * | 1995-12-01 | 1996-08-14 | 涿州石油物探绿菌实业有限公司 | Tipping valve |
| CN2435265Y (en) * | 2000-08-02 | 2001-06-20 | 黄钊仁 | Improved fuel overflow cut-off valve for locomotive |
-
2009
- 2009-04-30 CN CN200910107164A patent/CN101876377B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102229320A (en) * | 2011-04-19 | 2011-11-02 | 孙达立 | Oil spillage cutoff valve |
| CN102229320B (en) * | 2011-04-19 | 2013-09-18 | 孙达立 | Oil spillage cutoff valve |
| CN113833888A (en) * | 2021-11-03 | 2021-12-24 | 亚普汽车部件股份有限公司 | Compact high pressure reopen valve for vehicle fuel tank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101876377B (en) | 2012-09-26 |
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