CN101876377B - Oil overflow cut-off valve - Google Patents
Oil overflow cut-off valve Download PDFInfo
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- CN101876377B CN101876377B CN200910107164A CN200910107164A CN101876377B CN 101876377 B CN101876377 B CN 101876377B CN 200910107164 A CN200910107164 A CN 200910107164A CN 200910107164 A CN200910107164 A CN 200910107164A CN 101876377 B CN101876377 B CN 101876377B
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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 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 the Motor Vehicle occurrence of tilting; 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 receive 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 got into 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, reduce the ability to work of active carbon greatly from the fuel oil that the oil gas valve port spills; Cause the discharge vaporization system can not be normally, 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
To 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; The technical problem that fuel oil in the fuel tank can spill from the oil gas valve port of oil spilling cut-off valve and resulted in blockage by the pipeline of gas channel entering discharge vaporization system; 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, said valve body has a cavity and an end opening, and the other end of said valve body has an oil gas valve port; And the gas channel that is communicated with said oil gas valve port, said valve gap covers the opening of said valve body; Said floating plug body is arranged in the cavity of valve body; And be supported in movably on the said valve gap through an elastic component; Said floating plug body top have one be used to seal or open said oil gas valve port valve plug, wherein, said valve body has an oil return structure; Said oil gas valve port is arranged on the said oil return structure, also is provided with at least one spill port on the said 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 said 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 is back in the valve body through spill port, finally is back to fuel tank; And can not get into the pipeline of discharge vaporization system and result in blockage by gas channel; Or can flow into charcoal canister, and 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 save 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 the object of the invention, technological scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.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.
Extremely shown in Figure 4 like Fig. 1; A kind of oil spilling cut-off valve; Comprise valve body 1, valve gap 2, elastic component 7 and floating plug body 3; Said valve body 1 has a cavity 4 and an end opening, the gas channel 6 that the other end of said valve body 1 has an oil gas valve port 5 and is communicated with said oil gas valve port 5, and said valve gap 2 covers the opening of said valve body 1; Said floating plug body 3 is arranged in the cavity 4 of valve body 1; And be supported in movably on the said valve gap 2 through elastic component 7; Said floating plug body 3 tops have one be used to seal or open said oil gas valve port 5 valve plug 8, wherein, said valve body 1 has an oil return structure 9; Said oil gas valve port 5 is arranged on the said oil return structure 9, also is provided with at least one spill port 10 on the said oil return structure 9.Also be provided with several inlet holes 13 on the said valve gap 2.
Said 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, said elastic component 7 is preferably spring, and said floating plug body 3 has an inner chamber, and this inner chamber is formed with a columnar part, and said spring 7 one ends are sheathed on the columnar part, and the other end is fixedly set on the said valve gap 2.
Said oil return structure 9 has an oil-return groove 11 and valve plug chamber 12, and said 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, said oil-return groove 11 is an annular, and its cross section roughly is the U type.Said oil-return groove 11 comprises first annular wall 111, second annular bottom wall 112 and the 3rd annular wall 113, and said first annular wall 111, second annular bottom wall 112 and the 3rd annular wall 113 connect in order; Said 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 said oil gas valve port 5 is arranged on the 4th upper wall 114.
Said spill port 10 is arranged at second annular bottom wall 112 of said oil return structure 9 and the joint 116 that the 3rd annular wall 113 forms.Said 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; Said spill port 10 is arranged at the side away from gas channel 6 of the joint 116 of said 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 gets into annular oil-return groove 11 from spill port 10, can not make fuel oil get into gas channel 6 toward gas channel 6 lopsidedness because of the oil spilling cut-off valve.Said spill port 10 is set to one and gets final product, and just can satisfy the backflow of fuel oil.
Said 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.
Said valve plug chamber 12 roughly is trapezoid shaped; Suitable with valve plug 8 shapes of said floating plug body 3, when vehicle run-off the straight or overturning, floating plug body 3 is to float; Cause valve plug 8 to move up; Valve plug 8 leans with the joint 116 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 said the 4th upper wall 114 and the conduit wall 117 that is connected with the 3rd annular wall 113 of said gas channel 6 is on same horizontal plane.Certainly, the upper surface of said 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 said gas channel 6.
Certainly, said 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 various embodiment of the present invention as shown in Figures 2 and 3; Said 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 said exterior annular wall can be different shapes, like lineal shape or arc.Above-mentioned two annular wall bottom interconnects the back and forms oil-return groove 11, and said 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, said oil return structure 9 has an oil-return groove 11 and valve plug chamber 12, and said valve plug chamber 12 is formed by valve plug chamber ring wall 118 and valve plug chamber upper wall 200, and said oil gas valve port 5 is arranged on the valve plug chamber upper wall 200.Said 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 said valve plug chamber ring wall connect in order.Said oil-return groove 11 is between oil gas valve port 5 and gas channel 6.
Said spill port 10 is arranged at a part and the joint of oil-return groove diapire 119 of the valve plug chamber ring wall 118 of said oil return structure 9; Promptly be to be positioned at said 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.
Like Fig. 5 and shown in Figure 6, be respectively two kinds of different structures of the present invention's middle oil return structure embodiment illustrated in fig. 4.Said oil-return groove sidewall 201 is corresponding to the part of valve plug chamber ring wall 118, and said 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 said 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.
Said oil-return groove diapire 119 is wedge shape, and the internal surface edge oil-return groove sidewall that is positioned at oil-return groove 11 1 sides of oil-return groove diapire 119 201 ring wall 118 tilts from high to low to the valve plug chamber; 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 is back in the valve body 1 through spill port 10; Finally be back to fuel tank; And can not get into the pipeline of discharge vaporization systems and result in blockage by gas channel 6, or can flow into charcoal canister, so just avoided can not flow through charcoal canister or can't be of the oily vapours in the fuel tank by the generation of the situation of the absorption of the active carbon in the charcoal canister; Make the discharge vaporization system can be normally, 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 specified 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; Do not break away from any modification or the local replacement of 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, said valve body has a cavity and an end opening, and the other end of said valve body has an oil gas valve port; And the gas channel that is communicated with said oil gas valve port, said valve gap covers the opening of said valve body; Said floating plug body is arranged in the cavity of valve body; And be supported in movably on the said valve gap through elastic component; Said floating plug body top have one be used to seal or open said oil gas valve port valve plug; It is characterized in that: said valve body has an oil return structure, and said oil gas valve port is arranged on the said oil return structure, also is provided with at least one spill port on the said oil return structure.
2. oil spilling cut-off valve as claimed in claim 1 is characterized in that: said oil return structure has an oil-return groove and valve plug chamber, and said oil-return groove is arranged at the outside in valve plug chamber.
Like right with asking 2 described oil spilling cut-off valves, it is characterized in that: said 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: said oil-return groove comprises first annular wall, second annular bottom wall and the 3rd annular wall, and said first annular wall, second annular bottom wall and the 3rd annular wall connect in order; Said valve plug chamber comprises the 3rd annular wall and the 4th upper wall that is connected with the 3rd annular wall; Said 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: said 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: said spill port is arranged at second annular bottom wall of said oil return structure and the joint that the 3rd annular wall forms.
7. oil spilling cut-off valve as claimed in claim 6 is characterized in that: said spill port is arranged at the side away from gas channel of the joint of said oil return structure.
8. oil spilling cut-off valve as claimed in claim 2 is characterized in that: said 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: said 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; Said 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 said valve plug chamber ring wall connect in order; Said 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: said spill port is arranged at a part and the joint of oil-return groove diapire of the valve plug chamber ring wall of said oil return structure.
11. oil spilling cut-off valve as claimed in claim 9 is characterized in that: said oil-return groove diapire is wedge shape, and the internal surface edge oil-return groove sidewall that is positioned at oil-return groove one side of oil-return groove diapire ring wall tilts from high to low to the valve plug chamber.
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 CN101876377A (en) | 2010-11-03 |
| CN101876377B true 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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (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
Patent Citations (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 |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2000-97119A 2000.04.04 |
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| Publication number | Publication date |
|---|---|
| CN101876377A (en) | 2010-11-03 |
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