JPH0244141Y2 - - Google Patents
Info
- Publication number
- JPH0244141Y2 JPH0244141Y2 JP15813685U JP15813685U JPH0244141Y2 JP H0244141 Y2 JPH0244141 Y2 JP H0244141Y2 JP 15813685 U JP15813685 U JP 15813685U JP 15813685 U JP15813685 U JP 15813685U JP H0244141 Y2 JPH0244141 Y2 JP H0244141Y2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- float
- fuel vapor
- fuel
- hole
- 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
Links
- 239000000446 fuel Substances 0.000 claims description 16
- 230000007423 decrease Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Safety Valves (AREA)
- Float Valves (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、自動車等の燃料タンクに設置され、
タンク内部を大気に連通させることによつてタン
ク内圧力の上昇を防止し、車体の傾斜時に、タン
ク内室を大気から遮断して燃料の流出を阻止する
フユーエルベーパーバルブに関する。[Detailed description of the invention] (Industrial application field) This invention is installed in the fuel tank of a car, etc.
This invention relates to a fuel vapor valve that prevents the pressure inside the tank from increasing by communicating the inside of the tank with the atmosphere, and blocks the inside of the tank from the atmosphere to prevent fuel from flowing out when the vehicle body is tilted.
（従来の技術）
自動車等の燃料タンクには、タンク内圧力の上
昇及び車体傾倒時の燃料の流出を防止するため
に、一例を第３図に示すようなフユーエルベーパ
ーバルブが使用されている。(Prior Art) A fuel vapor valve, an example of which is shown in Fig. 3, is used in fuel tanks of automobiles, etc., in order to prevent an increase in pressure inside the tank and to prevent fuel from flowing out when the vehicle body is tilted. .
同図のフユーエルベーパーバルブにおいては、
略円筒形状を呈するボデイ１に形成され、大気に
連通する弁孔３を付された弁室２内に略円錐形状
を呈して弁孔３を開閉する弁部６を付された略円
筒形状のフロート５が軸方向移動自在に配置さ
れ、フロート５の内部に挿入されたスプリング７
が、端部をボデイ１に結合されたスプリング受８
に支えられてフロート５を弁孔３側へ付勢してい
る。 In the fuel vapor valve shown in the same figure,
It is formed in a body 1 having a substantially cylindrical shape, and has a valve chamber 2 having a substantially conical shape and having a valve part 6 for opening and closing the valve hole 3 in a valve chamber 2 having a valve hole 3 communicating with the atmosphere. A float 5 is arranged to be movable in the axial direction, and a spring 7 is inserted into the float 5.
However, the end of the spring receiver 8 is connected to the body 1.
The float 5 is urged toward the valve hole 3 side by being supported by.
（考案が解決しようとする問題点）
上記した従来技術によるフユーエルベーパーバ
ルブにおいては、フロート５が、スプリング７を
挿入されるために中空に形成されていることによ
り、車体の傾倒が僅かである間は、フロート５の
内部空所内に封じられた空気がフロート５の浮力
を助長するが、傾斜角度が大きくなるに連れて、
フロート５の空所内封入空気が抜け出て浮力を減
少させるので、閉弁力が低下して弁部６が弁孔３
を完全に閉塞し得ず、シール不良を惹起するに至
る。(Problems to be Solved by the Invention) In the fuel vapor valve according to the above-mentioned prior art, since the float 5 is formed hollow in order to insert the spring 7, the tilting of the vehicle body is slight. During this time, the air sealed in the internal cavity of the float 5 helps the buoyancy of the float 5, but as the inclination angle increases,
Since the air sealed in the cavity of the float 5 escapes and reduces the buoyancy, the valve closing force decreases and the valve portion 6 closes in the valve hole 3.
cannot be completely occluded, leading to seal failure.
本考案は、上記した問題点を解消して、車体の
傾倒量に関係なく、十分な閉弁をもたらすことの
できるフユーエルベーパーバルブの構造を提示す
ることを目的とするものである。 The object of the present invention is to solve the above-mentioned problems and to present a structure of a fuel vapor valve that can sufficiently close the valve regardless of the amount of inclination of the vehicle body.
（問題点を解決するための手段）
本考案は、上記した従来技術によるフユーエル
ベーパーバルブにおける問題点に鑑み、フロート
の弁部の外周に環状突起を付された構成となすも
のである。(Means for Solving the Problems) In view of the problems with the fuel vapor valves according to the prior art described above, the present invention has a structure in which an annular projection is attached to the outer periphery of the valve portion of the float.
（作用）
上記した構成に成る本考案のフユーエルベーパ
ーバルブにおいては、ボデイの弁孔を通つて流出
する燃料が、弁部の外周に付された環状突起に当
つてフロートを閉弁側に付勢して低下した閉弁力
を補い、完全閉塞をもたらす。(Function) In the fuel vapor valve of the present invention configured as described above, the fuel flowing out through the valve hole of the body hits the annular protrusion attached to the outer periphery of the valve part, causing the float to be attached to the valve closing side. This increases the valve closing force to compensate for the decreased valve closing force, resulting in complete occlusion.
（実施例）
第１図の実施例においては、略円筒形状を呈す
るボデイ１の内部に、大気に連通する弁孔３を付
された弁室２が形成され、略円筒形状を呈するフ
ロート５が弁室２内に軸方向移動自在に配置さ
れ、弁孔３を開閉する略円錐形状の弁部６がフロ
ート５の端部に付され、ボデイ１に結合されたス
プリング受８に支えられてフロート５を閉弁側に
付勢するスプリング７がフロート５の内方に挿入
され、弁部６の外周に、詳細を第２図に示す如
く、複数条の環状突起９が形成されている。(Embodiment) In the embodiment shown in FIG. 1, a valve chamber 2 having a valve hole 3 communicating with the atmosphere is formed inside a body 1 having a substantially cylindrical shape, and a float 5 having a substantially cylindrical shape. A substantially conical valve part 6, which is disposed within the valve chamber 2 so as to be freely movable in the axial direction and opens and closes the valve hole 3, is attached to the end of the float 5. A spring 7 that biases the float 5 toward the valve closing side is inserted into the float 5, and a plurality of annular protrusions 9 are formed on the outer periphery of the valve portion 6, as shown in detail in FIG.
（考案の効果）
本考案のフユーエルベーパーバルブが、上記し
たように、フロートの端部に付されて弁孔を開閉
する弁部の外周に環状突起を付されていることに
より、車体の傾倒に伴つてフロートの浮力が低下
して燃料の一部が流出した際に、弁孔を通つて流
れる燃料が環状突起に当つてフロートを閉弁側に
付勢するので、フロートの浮力の低下にもかかわ
らず、良好な閉弁状態がもたらされる。(Effect of the invention) As mentioned above, the fuel vapor valve of the present invention has an annular protrusion on the outer periphery of the valve part that is attached to the end of the float to open and close the valve hole, so that the vehicle body can be tilted. When the buoyancy of the float decreases and some of the fuel flows out, the fuel flowing through the valve hole hits the annular protrusion and urges the float toward the valve closing side. Nevertheless, a good valve closing condition is achieved.
第１図は、本考案の一実施例の断面図、第２図
は、要部の拡大断面図、第３図は、従来技術によ
るフユーエルベーパーバルブの一例の断面図であ
る。
１……ボデイ、２……弁室、３……弁孔、５…
…フロート、６……弁部、７……スプリング、８
……スプリング受、９……環状突起。
FIG. 1 is a cross-sectional view of an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of essential parts, and FIG. 3 is a cross-sectional view of an example of a fuel vapor valve according to the prior art. 1...Body, 2...Valve chamber, 3...Valve hole, 5...
...Float, 6...Valve section, 7...Spring, 8
... Spring holder, 9 ... Annular projection.
Claims (1)
デイ１と、前記弁孔３を開閉する弁部６を備えて
前記弁室２内に配置されたフロート５とを有する
フユーエルベーパーバルブにおいて、前記フロー
ト５の弁部６の外周に、環状突起９を付されてい
ることを特徴とするフユーエルベーパーバルブ。 A fuel vapor valve having a body 1 having a valve chamber 2 and a valve hole 3 communicating with the valve chamber 2, and a float 5 having a valve part 6 for opening and closing the valve hole 3 and disposed in the valve chamber 2. A fuel vapor valve characterized in that an annular projection 9 is attached to the outer periphery of the valve portion 6 of the float 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15813685U JPH0244141Y2 (en) | 1985-10-16 | 1985-10-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15813685U JPH0244141Y2 (en) | 1985-10-16 | 1985-10-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6266070U JPS6266070U (en) | 1987-04-24 |
| JPH0244141Y2 true JPH0244141Y2 (en) | 1990-11-22 |
Family
ID=31081341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15813685U Expired JPH0244141Y2 (en) | 1985-10-16 | 1985-10-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0244141Y2 (en) |
-
1985
- 1985-10-16 JP JP15813685U patent/JPH0244141Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6266070U (en) | 1987-04-24 |
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