CN100516497C - Fuel tank cap of general gasoline engine - Google Patents
Fuel tank cap of general gasoline engine Download PDFInfo
- Publication number
- CN100516497C CN100516497C CNB2007100926749A CN200710092674A CN100516497C CN 100516497 C CN100516497 C CN 100516497C CN B2007100926749 A CNB2007100926749 A CN B2007100926749A CN 200710092674 A CN200710092674 A CN 200710092674A CN 100516497 C CN100516497 C CN 100516497C
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- Prior art keywords
- hole
- fuel tank
- plunger
- inner cap
- diaphragm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000002828 fuel tank Substances 0.000 title claims abstract description 83
- 239000003502 gasoline Substances 0.000 title claims abstract description 62
- 238000006073 displacement reaction Methods 0.000 claims abstract description 12
- 238000009423 ventilation Methods 0.000 claims abstract description 6
- 238000013022 venting Methods 0.000 description 27
- 238000007789 sealing Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 238000004880 explosion Methods 0.000 description 3
- 239000010705 motor oil Substances 0.000 description 3
- 230000006837 decompression Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 210000002435 tendon Anatomy 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The invention discloses an oil tank cover of a general gasoline engine, an inner cover with a step through hole is arranged between an oil tank cover shell and a clamping combination, a plunger piston is arranged in a large-diameter end of the step through hole, a circle center through hole is arranged on the plunger piston and is opposite to a small-diameter hole of the step through hole, a diaphragm which can enable the small-diameter hole of the step through hole of the inner cover to be communicated with or blocked by the circle center through hole of the plunger piston through displacement is arranged between the plunger piston and a hole shoulder of the step through hole, the thickness of the diaphragm is smaller than the distance between the hole shoulder of the step through hole and the plunger piston, the diameter of the diaphragm is larger than the diameters of the circle center through hole of the plunger piston and the small-diameter hole of the step through hole. The structure for preventing the gasoline from flowing out is arranged in the ventilation channel of the fuel tank cover, so that the inner cavity of the fuel tank of the gasoline engine can be ensured to be communicated with the atmosphere under the normal condition, and the gasoline in the fuel tank can be prevented from flowing out from the ventilation hole when the inclination angle of the gasoline engine is too large or the gasoline engine is toppled over.
Description
Technical field
The present invention relates to a kind of fuel tank cap, be specifically related to a kind of fuel tank cap of general gasoline engines.
Background technique
Referring to Fig. 6, the fuel tank cap of existing general gasoline engines comprises shell 20, kayser seat 21, plastic disk 22, snapclose sheet 23, fuel tank inner cap 24, shell and kayser seat pass through riveted fixing, be supported with a plastic disk between kayser seat and the shell, be provided with a fuel tank inner cap in the chamber, lower end of plastic disk, the lower end of kayser seat is fixedly connected with a snapclose sheet, the plastic disk upper end is provided with many convex tendons, convex tendon is provided with the ventilation breach, plastic disk, the fuel tank inner cap, the kayser seat, be respectively equipped with breeder tube on the snapclose sheet, after fuel tank is covered, communicate with atmosphere by these breeder tubes in the fuel tank chamber.When petrol engine is worked, atmosphere enters in the fuel tank by the breeder tube on plastic disk, fuel tank inner cap, kayser seat, the snapclose sheet successively from the slit between shell and the kayser seat, replenish the air pressure in the fuel tank, to guarantee that the gasoline in the fuel tank can the normal supply petrol engine; When petrol engine quit work, the gasoline vapor in the fuel tank can pass through these breeder tubes again successively, leads to atmosphere from the slit between shell and the kayser seat at last, to prevent owing to the too high fuel tank explosion that causes of the gasoline vapor pressure of fuel tank internal.Yet the ventilation device of the fuel tank cap of this general gasoline engines is always communicating state, excessive or when toppling over when the petrol engine angle of inclination, gasoline in the fuel tank will flow out along this venting channels, both can cause the gasoline waste, environment is formed pollution, also cause burning, blast easily, have serious potential safety hazard.
Summary of the invention
The objective of the invention is problem at above-mentioned prior art existence, a kind of fuel tank cap of general gasoline engines is provided, it is by being provided with the structure that prevents that gasoline from flowing out in the venting channels of fuel tank cap, the fuel tank inner chamber that can either guarantee petrol engine under the normal condition keeps communicating with atmosphere, and is again can be at the petrol engine angle of inclination excessive or prevent that the gasoline in the fuel tank from flowing out from vent when toppling over.
The object of the present invention is achieved like this: the kayser seat of fuel tank cap shell and kayser combination is by the branch riveted fixing, the inner cap of band through hole is installed between fuel tank cap shell and the kayser combination, through hole is vertical with inner cap, the through hole of described inner cap is a step through-hole, be provided with a plunger in one bigger diameter end of this step through-hole, plunger is provided with center of circle through hole, this center of circle through hole is relative with the path hole of step through-hole, be placed with the diaphragm that can make path hole and the center of circle through hole of plunger of the step through-hole of inner cap communicate or stop up by displacement between the hole shoulder of plunger and step through-hole, the thickness of this diaphragm is less than the hole shoulder of step through-hole and the spacing between the plunger, the diameter of this diaphragm is greater than the diameter in the path hole of the center of circle through hole of plunger and step through-hole, and the plunger end face of diaphragm below or the hole shoulder end face of step through-hole are provided with air-flow path.
Owing to adopted such scheme, in a bigger diameter end of the step-like through hole of the inner cap of the fuel tank cap of general gasoline engines, be provided with a plunger, plunger is provided with center of circle through hole, be placed with the diaphragm that the through hole that can make inner cap by displacement and the center of circle through hole of plunger communicate or stop up between the hole shoulder of plunger and step through-hole, the hole shoulder end face of the plunger end face below the diaphragm or the step through-hole of inner cap is provided with air-flow path.General gasoline engines is under the normal state that uses, free state is positioned at the plunger of its below to diaphragm or the hole shoulder of the step through-hole of inner cap is provided with on the end face of air-flow path owing to gravitational reason is, the thickness of diaphragm is again less than the hole shoulder of step through-hole and the spacing between the plunger, the gap that makes the diaphragm top exist gas to pass through, the inner chamber of fuel tank and extraneous atmosphere can be by the through hole of the slit between the kayser seat of fuel tank cap shell and kayser combination, inner cap, the center of circle through hole of plunger and the venting channels intercommunications that is positioned at the formations such as air-flow path of diaphragm below.When petrol engine was worked, atmosphere entered the fuel tank inner chamber from this venting channels, replenished the air pressure in the fuel tank, to guarantee that the gasoline in the fuel tank can the normal supply petrol engine; After petrol engine quit work, the gasoline vapor in the fuel tank can lead to atmosphere from this venting channels again, for the fuel tank decompression, to prevent owing to the too high fuel tank explosion that causes of the gasoline vapor pressure of fuel tank internal.In case the general gasoline engines angle of inclination is excessive or when toppling over, gasoline in the fuel tank will be poured into venting channels, because the pressure of gasoline is greater than the pressure of ambient atmosphere, diaphragm in the venting channels between the shoulder of the hole of plunger and step through-hole is promoted displacement by gasoline pressure, the gap sealing that the gas that the diaphragm top is existed passes through, stop up venting channels, realization is from motive sealing, make the gasoline can not be outside venting channels flows to fuel tank, play the effect that prevents that the interior gasoline of fuel tank from flowing out from venting channels, solve general gasoline engines gasoline excessive because of the angle of inclination or that topple over appearance effectively and flowed out phenomenon, can avoid general gasoline engines excessive or topple over and cause burning because of the angle of inclination, the potential safety hazard of blast prevents from the fuel tank that gasoline flows out to cause waste and environment is polluted.As long as after the general gasoline engines angle of inclination is excessive or that topple over is set upright, gasoline in the fuel tank falls the venting channels that leaves fuel tank cap naturally after rise, after diaphragm has lost the pressure that gasoline grants towards a side of gasoline, diaphragm is under the effect of centrifugal force and atmospheric pressure, being the hole shoulder that free state falls at the step through-hole that is positioned at plunger below it or inner cap again is provided with on the end face of air-flow path, realize the open-minded automatically of venting channels, make venting channels unimpeded, petrol engine recovers normal working state.
Fuel tank cap of the present invention adopts simple structure, can either guarantee the two-way intercommunication of venting channels of atmosphere and fuel tank cap inner chamber, can under unexpected situation, realize the venting channels plug for seal automatically again, prevent that the oil of fuel tank from leaking from venting channels, improve the Safety performance of petrol engine.And simple from movable sealing structure, easy for installation, cost is low.
Fuel tank cap of the present invention can be used in the fuel tank of any petrol engine, and using scope is extensive.
The invention will be further described below in conjunction with the drawings and the specific embodiments.
Description of drawings
Fig. 1 is the structural representation of general purpose petrol engine oil tank cap of the present invention;
Fig. 2 is the P portion enlarged view among Fig. 1;
Fig. 3 is a kind of example structure figure of plunger of the present invention;
Fig. 4 is the another kind of example structure figure of plunger of the present invention;
Fig. 5 is the schematic representation of fuel tank cap of the present invention from the motive sealing venting channels;
Fig. 6 is the structural drawing of the general purpose petrol engine oil tank cap of prior art.
In the accompanying drawing, 1 is the fuel tank cap seal ring, and 2 is the inner cap seal ring, and 3 is the kayser tongue, 4 is diaphragm, and 5 is plunger, and 5a is a center of circle through hole, and 5b is an air-flow path, 5c is a projection, and 6 is pressure spring, and 7 is the kayser seat, and 7a is a through hole, 8 is inner cap, and 8a is the path hole, and 8b is an opening slot, and 8c is a concave surface, 8d is a boss, and 9 is cover plate, and 9a is a vent, 10 is shell, and 11 is the displacement space gap, and 12 is gasoline.
Embodiment
Fig. 1 to Fig. 3 is a kind of embodiment of the fuel tank cap of general gasoline engines.The kayser seat 7 of the shell 110 of fuel tank cap and kayser combination is by the branch riveted fixing, makes that the part except that the riveting point has certain slit between shell 10 and the kayser seat 7, is used for the air communication mistake.The inner cap 8 of band through hole is installed between fuel tank cap shell 10 and the kayser combination, and the fitting surface between inner cap 8 and the kayser seat 7 is provided with seal ring 2, and inner cap 8 compresses the formation sealing with seal ring 2 by the shell 10 and the kayser seat 7 of fixedlying connected.The upper end of described inner cap 8 is provided with concave surface 8c, and the lower end is provided with boss 8d, in the through hole that covers be that step through-hole is vertical with inner cap, this step through-hole connects the concave surface 8c and the boss 8d of inner cap, the flange around the inner cap concave surface is provided with the opening slot 8b of ventilation.Step through-hole on the described inner cap 8 has two bigger diameter ends, two bigger diameter ends lay respectively at the top and the bottom of step through-hole, between two bigger diameter ends path hole 8a, fixedly install plunger 5 in the bigger diameter end hole of step through-hole bottom, plunger 5 interference fit are fixed in the bigger diameter end hole of step through-hole bottom, perhaps screw-thread fit is fixed in the bigger diameter end hole of step through-hole bottom, all can reach fixed effect.Plunger 5 is provided with center of circle through hole 5a, and this center of circle through hole 5a is relative with the path hole 8a of step through-hole.Be placed with the diaphragm 4 that can make path hole 8a and the center of circle through hole 5a of plunger of the step through-hole of inner cap communicate or stop up by displacement between the hole shoulder of plunger 5 and step through-hole, the thickness of this diaphragm 4 is approximately less than the spacing between the hole of step through-hole shoulder and the plunger, makes the diaphragm 4 can be in the clearance space displacement between the shoulder of the hole of plunger and step through-hole; The diameter of this diaphragm 4 is greater than the diameter of the path hole 8a of the center of circle through hole 5a of plunger and step through-hole, make diaphragm 4 neither can fall into the center of circle through hole 5a of plunger or the path hole 8a of step through-hole, again can be when stopping up the path hole 8a of step through-hole be adjacent to form and seal with the hole shoulder of step through-hole.The upper-end surface of the plunger 5 of diaphragm 4 belows is provided with air-flow path 5b, diaphragm 4 is free state and is placed on plunger 5 and is provided with on the end face of air-flow path 5b, leave certain displacement space gap 11 between the last Transverse plane of diaphragm 4 and the shoulder plane, the hole of step through-hole, air-flow can be passed through in this gap.The concave surface 8c internal fixation of described inner cap 8 upper ends connects a cover plate 9, cover plate 9 interference fit or be bonded in the concave surface 8c of inner cap 8 upper ends, cover plate 9 is provided with vent 9a, this vent 9a communicates with the bigger diameter end on the step through-hole top of inner cap 8, the bigger diameter end on step through-hole top makes air-flow obtain buffering in the unhurried current chamber in the unhurried current chamber of 9 times formation of cover plate gas.Described air-flow path 5b is the groove that is arranged on plunger 5 end faces, and this groove is communicated with the center of circle through hole of plunger 5, and gas can be passed through from this air-flow path 5b, and stifled not disconnected by diaphragm 4.Kayser tongue 3 two ends of described kayser combination pass from the breach on the peripheral wall of kayser seat 7, be used for the fuel tank cap clamping lock is fixed on fuel tank, kayser tongue 3 by the circle center hole Spielpassung that is provided with on the boss 8d of inner cap 8 lower ends, be provided with pressure spring 6 between kayser seat 7 and the kayser tongue 3, pressure spring 6 one ends are enclosed within on the boss 8d, and kayser seat 7 and kayser tongue 3 are granted certain precompression.The kayser seat 7 of described kayser combination tightens and is with fuel tank cap seal ring 1, and fuel tank cap seal ring 1 is used for the matching gap between sealing oil case lid and the tank filler.Kayser seat 7 bottoms are provided with that through hole 7a is used for gas or gasoline passes through.Described inner cap 8, cover plate 9, plunger 5 are plastic article.
Referring to Fig. 4, in addition to the implementation, described air-flow path 5b also can be the gap between the several protruding 5c that is distributed on plunger 5 end faces, and several protruding 5c are used to support diaphragm 4, make diaphragm 4 can not stop up the center of circle through hole 5a of plunger 5.
The present invention not only is confined to the foregoing description, the step through-hole that covers in described has two bigger diameter ends, two bigger diameter ends lay respectively at the top and the bottom of step through-hole, it between two bigger diameter ends path hole, fixedly install plunger in the bigger diameter end hole on step through-hole top, can the through hole of inner cap be communicated or the diaphragm that stops up is the hole shoulder that free state is placed on step through-hole and is provided with on the end face of air-flow path with the center of circle through hole of plunger by displacement, this air-flow path can be the gap between aforementioned recess or the several projection, this groove is communicated with the path hole of the step through-hole of inner cap, leave certain displacement space gap between the last Transverse plane of diaphragm and the plane of plunger lower end, air-flow can be passed through in this gap.
The general gasoline engines that adopts this fuel tank cap is under the normal state that uses, diaphragm is that free state is positioned at the plunger of its below or the hole shoulder of the step through-hole of inner cap is provided with on the end face of air-flow path, the gap that the diaphragm top exists gas to pass through, the inner chamber of fuel tank and extraneous atmosphere can be by the through hole of the slit between the kayser seat of fuel tank cap shell and kayser combination, inner cap, the center of circle through hole of plunger and the venting channels intercommunications that is positioned at the formations such as air-flow path of diaphragm below.When petrol engine was worked, atmosphere entered the fuel tank inner chamber from this venting channels, replenished the air pressure in the fuel tank, to guarantee that the gasoline in the fuel tank can the normal supply petrol engine; After petrol engine quit work, the gasoline vapor in the fuel tank can lead to atmosphere from this venting channels again, for the fuel tank decompression, to prevent owing to the too high fuel tank explosion that causes of the gasoline vapor pressure of fuel tank internal.In case the general gasoline engines angle of inclination is excessive or when toppling over, gasoline 12 in the fuel tank will be poured into venting channels, promote the gap sealing that diaphragm displacement passes through the gas that exists above the diaphragm, stop up venting channels, realization is from motive sealing, make the gasoline can not be outside venting channels flows to fuel tank, solved general gasoline engines gasoline excessive because of the angle of inclination or that topple over appearance effectively and flowed out phenomenon.Then, as long as after the general gasoline engines angle of inclination is excessive or that topple over is set upright, gasoline in the fuel tank falls the venting channels that leaves fuel tank cap naturally after rise, after diaphragm has lost the pressure that gasoline grants towards a side of gasoline, diaphragm is under the effect of centrifugal force and atmospheric pressure, being the hole shoulder that free state falls at the step through-hole that is positioned at plunger below it or inner cap again is provided with on the end face of air-flow path, realize the open-minded automatically of venting channels, make venting channels unimpeded, petrol engine recovers normal working state.
The present invention is provided with automatic control break-make structure in the venting channels of general purpose petrol engine oil tank cap, allly belong to identical technological scheme with this programme, all belongs to protection scope of the present invention.
Claims (8)
1. the fuel tank cap of a general gasoline engines, fuel tank cap shell (10) passes through the branch riveted fixing with the kayser seat (7) of kayser combination, the inner cap (8) of band through hole is installed between fuel tank cap shell and the kayser combination, through hole is vertical with inner cap, it is characterized in that: the through hole of described inner cap (8) is a step through-hole, be provided with a plunger (5) in one bigger diameter end of this step through-hole, plunger is provided with center of circle through hole, this center of circle through hole is relative with the path hole of step through-hole, be placed with the diaphragm (4) that can make the path hole of the step through-hole of inner cap (8) communicate or stop up by displacement between the hole shoulder of plunger (5) and step through-hole with the center of circle through hole of plunger, the thickness of this diaphragm (4) is less than the hole shoulder of step through-hole and the spacing between the plunger, the diameter of this diaphragm (4) is greater than the diameter in the path hole of the center of circle through hole of plunger and step through-hole, plunger (5) end face of diaphragm (4) below or the hole shoulder end face of step through-hole are provided with air-flow path, described air-flow path is the groove that is arranged on the hole shoulder end face of plunger (5) end face or step through-hole, this groove is communicated with the center of circle through hole of plunger (5), or this groove is communicated with the path hole of the step through-hole of inner cap (8), and perhaps described air-flow path is the gap between several projectioies of the hole shoulder end face of the step through-hole that is distributed on plunger (5) end face or inner cap (8).
2. the fuel tank cap of general gasoline engines according to claim 1, it is characterized in that: the upper end of described inner cap (8) is provided with concave surface, and the lower end is provided with boss, in the step through-hole that covers connect concave surface and boss, the flange around the concave surface is provided with the opening slot of ventilation.
3. the fuel tank cap of general gasoline engines according to claim 2 is characterized in that: the concave surface internal fixation of described inner cap (8) upper end connects a cover plate (9), and cover plate (9) is provided with vent.
4. according to the fuel tank cap of claim 1 or 3 described general gasoline engines, it is characterized in that: the step through-hole on the described inner cap (8) has two bigger diameter ends, two bigger diameter ends lay respectively at the top and the bottom of step through-hole, it between two bigger diameter ends path hole, fixedly install plunger (5) in the bigger diameter end hole of step through-hole bottom, leave the gap between the last Transverse plane of diaphragm and the shoulder plane, the hole of step through-hole, the bigger diameter end on step through-hole top forms the unhurried current chamber of gas under cover plate.
5. the fuel tank cap of general gasoline engines according to claim 1, it is characterized in that: the step through-hole on the described inner cap (8) has two bigger diameter ends, two bigger diameter ends lay respectively at the top and the bottom of step through-hole, it between two bigger diameter ends path hole, fixedly install plunger (5) in the bigger diameter end hole on step through-hole top, leave the gap between the plane of the last Transverse plane of diaphragm and plunger (5) lower end.
6. according to the fuel tank cap of claim 1 or 3 described general gasoline engines, it is characterized in that: described inner cap (8), cover plate (9), plunger (5) are plastic article.
7. the fuel tank cap of general gasoline engines according to claim 1 is characterized in that: be with fuel tank cap seal ring (1) on the kayser seat (7) of described kayser combination, be provided with seal ring (2) between kayser seat (7) and the inner cap (8).
8. according to the fuel tank cap of claim 1 or 7 described general gasoline engines, it is characterized in that: be provided with pressure spring (6) between the kayser seat (7) of described kayser combination and the kayser tongue (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100926749A CN100516497C (en) | 2007-09-07 | 2007-09-07 | Fuel tank cap of general gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100926749A CN100516497C (en) | 2007-09-07 | 2007-09-07 | Fuel tank cap of general gasoline engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101113704A CN101113704A (en) | 2008-01-30 |
| CN100516497C true CN100516497C (en) | 2009-07-22 |
Family
ID=39022203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100926749A Expired - Fee Related CN100516497C (en) | 2007-09-07 | 2007-09-07 | Fuel tank cap of general gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100516497C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321790B (en) * | 2013-06-24 | 2016-02-03 | 南京德普瑞克催化器有限公司 | Miniature gasoline engine integral type overturning-preventing fuel tank cap charcoal tank |
| CN106247150B (en) * | 2016-10-13 | 2018-06-26 | 上海轩维汽配制造有限公司 | A kind of machine oil case lid with telescopic folding funnel |
| CN107061078A (en) * | 2017-05-16 | 2017-08-18 | 太平洋电子(昆山)有限公司 | A kind of fuel pressure regulator |
| CN114483395B (en) * | 2022-01-29 | 2022-12-06 | 浙江康思特动力机械有限公司 | Fuel tank cap and fuel tank |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4285440A (en) * | 1979-04-09 | 1981-08-25 | Tecumseh Products Company | Spill and spit resistant fuel cap |
| DE3243374A1 (en) * | 1982-11-24 | 1984-05-24 | Fichtel & Sachs Ag, 8720 Schweinfurt | Closure with venting arrangement for fuel tanks |
| US4696409A (en) * | 1986-06-13 | 1987-09-29 | Caterpillar Inc. | Vented fuel tank cap assembly |
| CN2125522U (en) * | 1992-02-14 | 1992-12-23 | 北京市汽车研究所 | Sealed pressure limiter for oil tank |
| CN2238758Y (en) * | 1995-07-13 | 1996-10-30 | 三龙产业股份有限公司 | Fuel tank cover |
| US7080657B1 (en) * | 2004-05-14 | 2006-07-25 | Scott William A | Fuel tank venting system |
| CN1869427A (en) * | 2005-05-24 | 2006-11-29 | 本田技研工业株式会社 | General-purpose engine fuel tank fuel vapor treatment system |
-
2007
- 2007-09-07 CN CNB2007100926749A patent/CN100516497C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4285440A (en) * | 1979-04-09 | 1981-08-25 | Tecumseh Products Company | Spill and spit resistant fuel cap |
| DE3243374A1 (en) * | 1982-11-24 | 1984-05-24 | Fichtel & Sachs Ag, 8720 Schweinfurt | Closure with venting arrangement for fuel tanks |
| US4696409A (en) * | 1986-06-13 | 1987-09-29 | Caterpillar Inc. | Vented fuel tank cap assembly |
| CN2125522U (en) * | 1992-02-14 | 1992-12-23 | 北京市汽车研究所 | Sealed pressure limiter for oil tank |
| CN2238758Y (en) * | 1995-07-13 | 1996-10-30 | 三龙产业股份有限公司 | Fuel tank cover |
| US7080657B1 (en) * | 2004-05-14 | 2006-07-25 | Scott William A | Fuel tank venting system |
| CN1869427A (en) * | 2005-05-24 | 2006-11-29 | 本田技研工业株式会社 | General-purpose engine fuel tank fuel vapor treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101113704A (en) | 2008-01-30 |
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Address after: No. 99 Chongqing Jiulongpo Hualong Avenue Kowloon Park Patentee after: Loncin Industry Co., Ltd. Address before: LONCIN Industrial Park, Baihe Industrial Zone, Chongqing economic and Technological Development Zone Patentee before: Loncin Industry Co., Ltd. |
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Owner name: LONCIN LONCIN GENERAL DYNAMICS CO., LTD. Free format text: FORMER NAME: LONCIN INDUSTRY CO., LTD. |
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Address after: 99 No. 400052 Chongqing Jiulongpo Hualong Avenue Kowloon Park Patentee after: Loncin General Dynamics Co., Ltd. Address before: 99 No. 400052 Chongqing Jiulongpo Hualong Avenue Kowloon Park Patentee before: Loncin Industry Co., Ltd. |
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Granted publication date: 20090722 Termination date: 20160907 |
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