燃料タンクの液面検知バルブ

Liquid level detection valve for fuel tank

Abstract

PROBLEM TO BE SOLVED: To provide a liquid level detection valve for a fuel tank capable of surely carrying out a switching operation without causing malfunction by correctly detecting the liquid level of a fuel in the fuel tank. SOLUTION: This valve is so composed that a floating body 50 provided with, at its upper end part, a valve head 60 having an upper end surface spherically formed is housed in a nearly cylindrical body 3, and the valve is closed by raising the floating body 50 in conjunction with the rise of the liquid level to abut the upper end face of the valve head 60 on a valve seat 14 formed on the inside surface of the upper wall of the body 3. Forming the valve seat 14 with a ring-like elastic body prevents the rapid reduction of the space between the valve head 60 and the valve seat 14. The valve seat is inserted into a valve chamber forming member from an open lower end face and fixed to a valve seat mounting part, so that the mounting work of the valve seat is facilitated. COPYRIGHT: (C)2002,JPO
(57)【要約】 【課題】 正確に燃料タンク内の燃料の液面を検知し て、誤動作を生じることなく確実に開閉動作を行うこと ができる燃料タンクの液面検知バルブを得る。 【解決手段】 略円筒状の本体3内に、上端面が球面状 に形成された弁頭60を上端部に設けたフロート体50 を収容し、該フロート体50が液面の上昇と共に上昇し て弁頭60の上端面が本体3の上壁内面に設けられた弁 座14に当接することにより弁を閉じるように構成され たバルブにおいて、上記弁座14をリング状弾性体で形 成することにより、弁頭60と弁座14との間の間隙が 急激に減少することを防止する。また、開放した下端面 から弁室形成部材内に上記弁座を挿入して弁座取付部に 固定するようにして、弁座の取付作業を容易にする。

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Cited By (4)

    Publication numberPublication dateAssigneeTitle
    GB-2413171-AOctober 19, 2005Nifco IncFloat activated fuel tank valve
    GB-2413171-BAugust 23, 2006Nifco IncValve for fuel tank
    US-7243639-B2July 17, 2007Nifco Inc.Valve for fuel tank
    US-8220481-B2July 17, 2012Toyoda Gosei Co., Ltd.Fuel shutoff valve