JPH0659784B2 - Check valve of breather device in vehicle fuel tank - Google Patents
Check valve of breather device in vehicle fuel tankInfo
- Publication number
- JPH0659784B2 JPH0659784B2 JP25039586A JP25039586A JPH0659784B2 JP H0659784 B2 JPH0659784 B2 JP H0659784B2 JP 25039586 A JP25039586 A JP 25039586A JP 25039586 A JP25039586 A JP 25039586A JP H0659784 B2 JPH0659784 B2 JP H0659784B2
- Authority
- JP
- Japan
- Prior art keywords
- float
- valve
- exhaust port
- valve chamber
- fuel
- 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 - Lifetime
Links
- 239000002828 fuel tank Substances 0.000 title claims description 17
- 239000000446 fuel Substances 0.000 claims description 25
- 230000002093 peripheral effect Effects 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
- B60K15/03519—Valve arrangements in the vent line
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は、自動車などの燃料タンクに設けられ、燃料
タンク内の燃料蒸気を排気するブリーザ装置におけるチ
ェック弁に関する。Description: TECHNICAL FIELD The present invention relates to a check valve in a breather device which is provided in a fuel tank of an automobile or the like and exhausts fuel vapor in the fuel tank.
（従来の技術とその問題点） この種の車両の燃料タンクにおけるブリーザ装置のチェ
ック弁の従来例として弁室内の上半部にフロート、下半
部に鋼球を収容した構成のもの（実開昭５８−１０６２
２７号公報）が周知である。この従来例では、フロート
は弁室の周壁でガイドされて上下動し、弁室の下半部に
形成された通液孔より弁室内に流入する燃料によってフ
ロートが浮上すると、弁室の上壁に形成された排気口の
弁座をフロートの上面に形成された弁突子が押して排気
口を閉じるように構成されている。また、車両が横転し
たり反転した場合には、弁室の下半部のテーパ状に形成
された周壁に沿って前記した鋼球が転がり、この鋼球で
フロートの下面が押されることにより前記弁突子が弁座
に強く圧接して、排気口からの燃料の流出が防止される
ようになっている。(Prior art and its problems) As a conventional example of a check valve of a breather device in a fuel tank of this type of vehicle, a float valve is housed in the upper half of the valve chamber and a steel ball is housed in the lower half (actually opened). Sho 58-1062
No. 27) is well known. In this conventional example, the float moves up and down while being guided by the peripheral wall of the valve chamber, and when the float floats up due to the fuel flowing into the valve chamber through the liquid passage hole formed in the lower half of the valve chamber, the upper wall of the valve chamber The valve stem formed on the upper surface of the float pushes the valve seat of the exhaust port formed in the above so as to close the exhaust port. Further, when the vehicle rolls over or turns over, the steel ball described above rolls along the tapered peripheral wall of the lower half of the valve chamber, and the lower surface of the float is pushed by this steel ball, whereby The valve stem strongly presses against the valve seat to prevent fuel from flowing out from the exhaust port.
とろこが、上記の構成の場合、車両の傾き角度が横転に
至らない範囲内では、鋼球が転がらずフロートは鋼球で
押されないので、弁突子にはフロートの浮力による押圧
力が加わるだけで排気口は十分に閉じられず、燃料の流
出を確実に防止するには至らないという欠点がある。し
かも、フロートは弁室の周壁をガイド面として上下動す
るように構成されているため、フロートと弁室の周壁と
の間に異物が入るとフロートの上下動が妨げられ、装置
が正常に作動しなくなるという欠点もある。In the case of the above-mentioned structure, the steel ball does not roll and the float is not pushed by the steel ball within the range where the vehicle tilt angle does not cause rollover, so the pressing force due to the buoyant force of the float is applied to the valve stem. However, there is a drawback in that the exhaust port cannot be closed sufficiently and the outflow of fuel cannot be reliably prevented. Moreover, since the float is configured to move up and down using the peripheral wall of the valve chamber as a guide surface, if a foreign object enters between the float and the peripheral wall of the valve chamber, the vertical movement of the float is hindered and the device operates normally. There is also a drawback that it does not.
（発明の目的） この発明は、上記問題を解決するためになされたもの
で、車両の傾き角度が小さい範囲でも排気口を強く閉じ
て燃料の流出を確実に防止できるとともに、異物の侵入
などによってフロートの上下動を妨げられることのない
動作の確実な車両の燃料タンクにおけるブリーザ装置の
チェック弁を提供することを目的とする。(Object of the Invention) The present invention has been made in order to solve the above problems, and can firmly prevent the outflow of fuel by closing the exhaust port strongly even in a range where the vehicle tilt angle is small, and at the same time, it is possible to prevent foreign matter from entering. It is an object of the present invention to provide a check valve for a breather device in a fuel tank of a vehicle, which ensures reliable operation without obstructing the vertical movement of the float.
（目的を達成するための手段） この発明の車両の燃料タンクにおけるブリーザ装置のチ
ェック弁は、上記目的を達成するために、弁室の上壁に
燃料蒸気の排気口を形成し、下向きに湾曲する球面状と
した弁室の底壁側に燃料通液孔を形成する一方、前記排
気口に形成された弁座に遊動自在に係合し下から押され
て排気口を閉じる弁頭をフロートの上端に形成して、こ
の弁頭を支点にして揺動自在となるようにフロートを前
記弁室内に収容し、このフロートの下端部に形成された
収容穴にばねを介してウェートボールをその一部がフロ
ート下端より露出するように収容して、このウェートボ
ールを弁室の底面で受け、さらに弁室の底面の曲率半径
を前記フロートの弁頭からウェートボールまでの寸法よ
り小さくして、燃料の注入時にはウェートボールと独立
にフロートのみが浮上してその弁頭が排気口を閉じ、ま
た車両の傾斜によりフロートが弁頭を支点にして弁室に
対し相対的に傾斜すると、弁室の底面の外周域でウェー
トボールが上方に押され、その押圧力により排気口を強
く閉じるように構成している。(Means for Achieving the Purpose) In order to achieve the above-mentioned object, a check valve of a breather device for a fuel tank of a vehicle of the present invention forms an exhaust port for fuel vapor in an upper wall of a valve chamber and bends downward. The valve head, which forms a fuel passage hole on the bottom wall side of the spherical valve chamber, is movably engaged with the valve seat formed at the exhaust port and is pushed from below to close the exhaust port. Is formed at the upper end of the float, and the float is housed in the valve chamber so as to be swingable around the valve head as a fulcrum, and a weight ball is provided through a spring in a housing hole formed at the lower end of the float. Part of the float is housed so as to be exposed from the lower end, the weight ball is received by the bottom surface of the valve chamber, and the radius of curvature of the bottom surface of the valve chamber is made smaller than the dimension from the valve head of the float to the weight ball. Weight when injecting fuel Only the float floats independently of the ball, its valve head closes the exhaust port, and the tilt of the vehicle causes the float to incline relative to the valve chamber with the valve head as the fulcrum. The weight ball is pushed upward, and the pushing force strongly closes the exhaust port.
（実施例） 第１図はこの発明の一実施例である車両の燃料タンクに
おけるブリーザ装置のチェック弁の縦断面図、第２図は
その分解斜視図、第３図（Ａ）〜（Ｄ）はその動作説明
図を示す。(Embodiment) FIG. 1 is a longitudinal sectional view of a check valve of a breather device in a fuel tank of a vehicle according to an embodiment of the present invention, FIG. 2 is an exploded perspective view thereof, and FIGS. 3 (A) to 3 (D). Shows the operation explanatory drawing.
このチェック弁は、概形が円筒状の弁室１内にフロート
２を収容して構成されている。弁室１の上壁３の中央に
は燃料蒸気を排出するための排気口４が形成され、この
排気口４の入口側には半球状に凹陥した弁座５が形成さ
れている。また、弁室１の底壁６は下向きに湾曲する球
面状に形成され、この底壁６の外周域には弁室１内に燃
料を流入させるための燃料通液孔７が複数形成されてい
る。This check valve is configured by accommodating a float 2 in a valve chamber 1 having a generally cylindrical shape. An exhaust port 4 for discharging the fuel vapor is formed in the center of the upper wall 3 of the valve chamber 1, and a hemispherically recessed valve seat 5 is formed on the inlet side of the exhaust port 4. Further, the bottom wall 6 of the valve chamber 1 is formed in a spherical shape that curves downward, and a plurality of fuel passage holes 7 for allowing fuel to flow into the valve chamber 1 are formed in the outer peripheral region of the bottom wall 6. There is.
上記フロート２の本体部２ａは発泡プラスチックなど比
重の小さい材料で形成され、その上端には軟質プラスチ
ックなどからなる球形の弁頭２ｂが一体に形成されてい
る。この弁頭２ｂは弁室１の上壁３に形成された弁座５
に遊動自在に係合するように配置され、この弁頭２ｂが
下から弁座５に押し付けられると排気口４が閉じるよう
に構成され、フロート２全体は上記弁頭２ｂを支点にし
て弁室１内で揺動自在となるように配置されている。The main body 2a of the float 2 is formed of a material having a low specific gravity such as foamed plastic, and a spherical valve head 2b made of soft plastic or the like is integrally formed on the upper end thereof. The valve head 2b is a valve seat 5 formed on the upper wall 3 of the valve chamber 1.
Is arranged so as to be freely engaged with the valve head 2b, and when the valve head 2b is pressed against the valve seat 5 from below, the exhaust port 4 is closed, and the entire float 2 has the valve head 2b as a fulcrum. It is arranged so that it can be swung within 1.
一方、上記フロート２の本体部２ａの下端には縦長の収
容穴８が形成されており、この収容穴８にはばね９を介
して鋼球などからなるウェートボール１０が上下動自在
となるように収容され、フロート２が垂直姿勢にあると
きウェートボール１０はその一部が本体部２ａの下端よ
り露出した状態で弁室１の底壁６に受けられている。こ
こでは、ウェートボール１０が２個収容されているが、
１個でウェートの役割を十分果たせる場合には１個とし
てもよい。また、弁頭２ｂの中心点から本体部２ａの下
端までの寸法をＲ２とするとき、弁室１の底壁６の内面
側の曲率半径Ｒ１は、上記寸法Ｒ２より小さくなるよう
に設定されている。On the other hand, a vertically long accommodating hole 8 is formed at the lower end of the main body portion 2a of the float 2, and a weight ball 10 made of a steel ball or the like is vertically movable through a spring 9 in the accommodating hole 8. When the float 2 is in the vertical posture, the weight ball 10 is received by the bottom wall 6 of the valve chamber 1 with a part of the weight ball 10 exposed from the lower end of the main body 2a. Here, two weight balls 10 are stored,
One may be used when one can sufficiently fulfill the role of a weight. Further, when the dimension from the center point of the valve head 2b to the lower end of the main body portion 2a is R 2 , the curvature radius R 1 on the inner surface side of the bottom wall 6 of the valve chamber 1 is smaller than the above dimension R 2. It is set.
なお、弁室１は上壁３と本体とが別々に形成され、ばね
９，ウェートボール１０とともにフロート２を弁室１内
に収容したあと、本体上部に上壁３を接着固定して組立
てられる。It should be noted that the valve chamber 1 has an upper wall 3 and a main body formed separately, and after the float 2 is housed in the valve chamber 1 together with the spring 9 and the weight ball 10, the upper wall 3 is bonded and fixed to the upper portion of the main body to be assembled. .
このチェック弁の燃料タンクへの組付けは、例えば第３
図（Ａ）に示すように燃料タンクの上壁１１に形成され
た開口１１ａより弁室１の下半部を燃料タンク内に挿入
して、弁室１の上端に形成されたフランジ１ａを上壁１
１上に着座させ、上記開口１１ａの近傍にねじ止めされ
た押え部材１２で上記フランジ１ａを上壁１１に押し付
けることにより固定される。また、弁室１の上壁３に
は、排気口４より排出される燃料蒸気を外気側に導く排
気管１３が連結される。Assembling this check valve to the fuel tank is, for example, the third
As shown in FIG. 1A, the lower half of the valve chamber 1 is inserted into the fuel tank through the opening 11a formed in the upper wall 11 of the fuel tank, and the flange 1a formed at the upper end of the valve chamber 1 is raised. Wall 1
1 and is fixed by pressing the flange 1a against the upper wall 11 with a pressing member 12 screwed near the opening 11a. An exhaust pipe 13 that guides the fuel vapor discharged from the exhaust port 4 to the outside air side is connected to the upper wall 3 of the valve chamber 1.
つぎに、このチェック弁の動作を説明する。Next, the operation of this check valve will be described.
車両が正常な姿勢にあって、燃料タンク内の液位がチェ
ック弁より下方にあるとき、フロート２の弁頭２ｂは弁
座５に係合しており、またウェートボール１０は弁室１
内の最下位置である底壁６の中央にあるため、フロート
２は第３図（Ａ）に示すように垂直姿勢に保たれ、この
とき弁頭２ｂと弁座５の間には隙間ができる。このた
め、燃料タンク内の燃料蒸気は燃料通液孔７より排気口
４、排気管１３を経て大気に解放され、燃料タンクへの
燃料の注入が可能な状態に保たれる。When the vehicle is in a normal posture and the liquid level in the fuel tank is below the check valve, the valve head 2b of the float 2 is engaged with the valve seat 5 and the weight ball 10 is in the valve chamber 1
Since the float 2 is located at the center of the bottom wall 6 which is the lowest position, the float 2 is maintained in a vertical posture as shown in FIG. 3 (A), and at this time, a gap is formed between the valve head 2b and the valve seat 5. it can. Therefore, the fuel vapor in the fuel tank is released from the fuel passage hole 7 through the exhaust port 4 and the exhaust pipe 13 to the atmosphere, and the fuel can be injected into the fuel tank.
以上の状態のもとで燃料タンク内に燃料を注入し、燃料
が燃料通液孔７より弁室１内に流入すると、フロート２
に浮力Ｆが働きはじめる。このとき、ウェートボール１
０は底壁６の中央位置に保たれているため、液位の上昇
とともにフロート１０は垂直姿勢のまま浮上して、最終
的にフロート１０の弁頭２ｂが浮力Ｆによって上壁３の
弁座５に押し当てられ、排気口４が閉じられる。Under the above conditions, when the fuel is injected into the fuel tank and the fuel flows into the valve chamber 1 through the fuel passage hole 7, the float 2
Buoyancy F begins to work. At this time, wait ball 1
Since 0 is maintained at the center position of the bottom wall 6, the float 10 floats in a vertical posture as the liquid level rises, and finally the valve head 2b of the float 10 is lifted by the buoyancy F to the valve seat of the top wall 3. 5 and the exhaust port 4 is closed.
上記排気口４の閉止状態のもとで、車両走行中に車両の
姿勢に多少の傾きが発生すると、このときの弁室１内の
最下位置である底壁６の外周側にウェートボール１０が
移動し、第３図（Ｂ）に示すようにフロート２は弁室１
に対して相対的に傾斜した姿勢となる。そして、この状
態では、先述したＲ１＜Ｒ２の条件のために、底壁６か
らウェートボール１０に対し押圧力が働き、この押圧力
によってフロート２の弁頭２ｂは弁座５に強く押し付け
られ、浮力Ｆ以上の押圧力で排気口４が閉じられる。し
たがって、車両の傾斜により液面が乱れても、排気口４
より燃料が流出することはない。When the vehicle attitude is slightly inclined while the vehicle is traveling with the exhaust port 4 closed, the weight ball 10 is provided on the outer peripheral side of the bottom wall 6 which is the lowest position in the valve chamber 1 at this time. Moves, and the float 2 moves into the valve chamber 1 as shown in FIG. 3 (B).
The posture is relatively inclined with respect to. In this state, a pressing force acts on the weight ball 10 from the bottom wall 6 due to the above-described condition of R 1 <R 2 , and the valve head 2 b of the float 2 is strongly pressed against the valve seat 5 by this pressing force. Then, the exhaust port 4 is closed with a pressing force of buoyancy F or more. Therefore, even if the liquid level is disturbed by the inclination of the vehicle, the exhaust port 4
No more fuel spills.
つぎに、車両が横転した場合、第３図（Ｃ）に示すよう
にフロート４は浮力Ｆに打ち勝つウェートボール１０の
重力Ｗで弁頭２ｂを支点にして下向きの傾斜姿勢とな
り、底壁６の外周側でウェートボール１０に対し押圧力
が働くため、弁頭２ｂが弁座５に強く押し当てられ、排
気口４は強い押圧力で閉じられる。したがって、このと
きも排気口４からの燃料の流出は防止される。Next, when the vehicle rolls over, as shown in FIG. 3 (C), the float 4 is inclined downward with the gravity W of the weight ball 10 that overcomes the buoyancy F about the valve head 2b as a fulcrum, and the bottom wall 6 moves. Since a pressing force acts on the weight ball 10 on the outer peripheral side, the valve head 2b is strongly pressed against the valve seat 5, and the exhaust port 4 is closed with a strong pressing force. Therefore, also at this time, the outflow of fuel from the exhaust port 4 is prevented.
車両が反転した場合にも同様に、ウェートボール１０の
重力Ｗがフロート２の浮力Ｆに打ち勝って、フロート２
は第３図（Ｄ）に示すように傾斜姿勢となり、底壁６の
外周側でウェートボール１０に強い押圧力が加わるた
め、排気口４が強く閉じられ排気口４からの燃料の流出
が防止される。Similarly, when the vehicle is reversed, the gravity W of the weight ball 10 overcomes the buoyancy F of the float 2 and the float 2
Shows an inclined posture as shown in FIG. 3 (D) and a strong pressing force is applied to the weight ball 10 on the outer peripheral side of the bottom wall 6, so that the exhaust port 4 is strongly closed to prevent the fuel from flowing out from the exhaust port 4. To be done.
（発明の効果） 以上のように、この発明の車両の燃料タンクにおけるブ
リーザ装置のチェック弁によれば、車両の横転、反転時
は勿論、傾き角度が比較的小さいときでも、フロートに
働く浮力以上の強い押圧力で排気口が閉じられるため、
燃料の流出を確実に防止できるとともに、フロートは弁
室内に揺動自在に設けられるため、異物の侵入などによ
りフロートが動作不能に陥ることがなく、常に正常な動
作を行わせることができるなどの効果が得られる。(Effects of the Invention) As described above, according to the check valve of the breather device in the fuel tank of the vehicle of the present invention, the buoyancy acting on the float is equal to or greater than that of the vehicle when the vehicle rolls over or reverses and also when the tilt angle is relatively small. Because the exhaust port is closed by the strong pressing force of
Since the outflow of fuel can be reliably prevented and the float is swingably installed in the valve chamber, the float does not become inoperable due to intrusion of foreign matter and can always perform normal operation. The effect is obtained.
第１図はこの発明の一実施例である車両の燃料タンクに
おけるブリーザ装置のチェック弁の縦断面図、第２図は
そのチェック弁の分解斜視図、第３図（Ａ）〜（Ｄ）は
そのチェック弁の動作説明図である。 １…弁室、２…フロート、 ２ａ…本体部、２ｂ…弁頭、 ３…上壁、４…排気口、 ５…弁座、６…底壁、 ７…燃料通液孔、８…収容穴、 ９…ばね、１０…ウェートボールFIG. 1 is a longitudinal sectional view of a check valve of a breather device in a fuel tank of a vehicle which is an embodiment of the present invention, FIG. 2 is an exploded perspective view of the check valve, and FIGS. 3 (A) to 3 (D) are It is operation | movement explanatory drawing of the check valve. DESCRIPTION OF SYMBOLS 1 ... Valve chamber, 2 ... Float, 2a ... Main body part, 2b ... Valve head, 3 ... Top wall, 4 ... Exhaust port, 5 ... Valve seat, 6 ... Bottom wall, 7 ... Fuel passage hole, 8 ... Storage hole , 9 ... Spring, 10 ... Weightball
Claims (1)
湾曲する球面状の底壁側に燃料通液孔を有する弁室と、
前記排気口に形成された弁座に遊動自在に係合し下から
押されて排気口を閉じる弁頭を上端に有し、この弁頭を
支点にして揺動自在となるように前記弁室内に収容した
フロートと、このフロートの下端部に形成された収容穴
に一部がフロート下端より露出するようにばねを介して
上下動自在に収容され前記弁室の底面で受けられるウェ
ートボールとを備え、前記弁室の底面の曲率半径を、前
記フロートの弁頭中心点からフロート下端までの寸法よ
り小さくしたことを特徴とする車両の燃料タンクにおけ
るブリーザ装置のチェック弁。1. A valve chamber having an exhaust port for fuel vapor on an upper wall and a fuel passage hole on a bottom wall side of a downwardly curved spherical surface,
The valve chamber has a valve head at its upper end that is movably engaged with a valve seat formed at the exhaust port and is pushed from below to close the exhaust port, and is swingable around this valve head as a fulcrum. And a weight ball received in the bottom surface of the valve chamber that is accommodated vertically through a spring so that a part of the float is exposed from the lower end of the float in a storage hole formed in the lower end of the float. A check valve for a breather device in a fuel tank of a vehicle, wherein a radius of curvature of a bottom surface of the valve chamber is smaller than a dimension from a valve head center point of the float to a bottom end of the float.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25039586A JPH0659784B2 (en) | 1986-10-20 | 1986-10-20 | Check valve of breather device in vehicle fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25039586A JPH0659784B2 (en) | 1986-10-20 | 1986-10-20 | Check valve of breather device in vehicle fuel tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63103734A JPS63103734A (en) | 1988-05-09 |
| JPH0659784B2 true JPH0659784B2 (en) | 1994-08-10 |
Family
ID=17207276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25039586A Expired - Lifetime JPH0659784B2 (en) | 1986-10-20 | 1986-10-20 | Check valve of breather device in vehicle fuel tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0659784B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0554045U (en) * | 1991-12-19 | 1993-07-20 | エヌオーケー株式会社 | Fuel cutoff valve |
| FR2747758B1 (en) * | 1996-04-22 | 1998-07-10 | Plastic Omnium Cie | VALVE FOR TANK AND RESERVOIR THUS EQUIPPED |
-
1986
- 1986-10-20 JP JP25039586A patent/JPH0659784B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63103734A (en) | 1988-05-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2559486B2 (en) | Fuel shutoff valve device for fuel tank | |
| JP2557671B2 (en) | Fuel cutoff valve | |
| US4378815A (en) | Pressure control device with a fluid discharge prevention mechanism | |
| JPH062960Y2 (en) | Overfill valve and input pipe | |
| US4893643A (en) | Tank vapor vent valve assembly with improved overfill protection | |
| JPH0683443U (en) | Fuel outflow prevention device in fuel tank of automobile | |
| JP2765825B2 (en) | Vent valve for vehicle fuel tank | |
| JPH0659784B2 (en) | Check valve of breather device in vehicle fuel tank | |
| JP3419137B2 (en) | Liquid shutoff valve | |
| JP4051585B2 (en) | Liquid fuel spill prevention valve | |
| JPH045818Y2 (en) | ||
| JPS6314057Y2 (en) | ||
| JPH0529932Y2 (en) | ||
| JPH065238Y2 (en) | Fuel supercharging prevention device in fuel tank | |
| JP2006131012A (en) | Valve for fuel tank | |
| JPS6349375Y2 (en) | ||
| JP3369048B2 (en) | Air valve | |
| JPS6140999Y2 (en) | ||
| JPH0867155A (en) | Fluid cutoff valve | |
| JPS6042203Y2 (en) | Vaporizer overflow prevention device | |
| JPS5929188Y2 (en) | automatic air vent valve | |
| JPH0554045U (en) | Fuel cutoff valve | |
| JP2512614B2 (en) | Air valve float mounting structure | |
| JP2704972B2 (en) | Air valve | |
| JPS5927475B2 (en) | float valve |