PROBLEM TO BE SOLVED: To reduce, in a fuel shut-off valve, strange noise in closing an opening in the fuel shut-off valve.SOLUTION: A fuel shut-off valve 1 comprises a second valve mechanism 50 which comprises a second float 54 and an air chamber 55S, and opens and closes a second seal face 30a of casings 20, 30 which provide communication between the inside and the outside of a fuel tank FT, by making the second float 54 float and sink by the buoyancy of gas in the air chamber 55S. The second valve mechanism 50 further comprises a valve element 51 which has a disk shape formed with an opening 52 at the center for receiving the second float 54 and seals the second seal face 30a. The valve element 51 includes a seat part 51e which contacts with the second seal face 30a in a state that the valve element 51 seals the second seal face 30a, a surface 51a which defines the opening 52 and contacts with the second float 54, and a support part 51f which extends vertically downward at the outer peripheral side of the disk and contacts with the second float 54.SELECTED DRAWING: Figure 1

    【課題】燃料遮断弁において、燃料遮断弁内の開口を閉塞する際の異音を低減する。【解決手段】燃料遮断弁1は、第2フロート54と空気室55Sとを備え、空気室55S内の気体の浮力によって第2フロート54を浮沈させて、燃料タンクFTの内外を連通するケーシング20,30の第2シール面30aを開閉する第2弁機構50を備える。第2弁機構50は、さらに、中心に前記第2フロート54を受け入れるための開口52が形成された円板形状を有し、第2シール面30aを封止する弁体51であって、弁体51が第2シール面30aを封止した状態において第2シール面30aと当接するシート部51eと、前記開口52を規定する面51aであって、第2フロート54と当接する面51aと、円板の外周側において鉛直方向下側へ延伸し、第2フロート54と当接する支持部51fと、を含む弁体51を備える。【選択図】図1


    Access

    Download


    Export, share and cite



    Title :

    FUEL SHUT-OFF VALVE


    Additional title:

    燃料遮断弁


    Contributors:

    Publication date :

    2017-03-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / F16K VALVES , Ventile



    FUEL SHUT-OFF VALVE

    HATTA KAZUHISA / KITO HIROAKI / KUWAYAMA KENTA | European Patent Office | 2021

    Free access

    FUEL SHUT-OFF VALVE

    KUWAYAMA KENTA / CALEB BAUER / STEVEN YURGALONIS | European Patent Office | 2020

    Free access

    FUEL SHUT-OFF VALVE

    TAKAHASHI TETSUYA | European Patent Office | 2018

    Free access

    FUEL SHUT-OFF VALVE

    TAKAHASHI TETSUYA | European Patent Office | 2018

    Free access

    FUEL SHUT-OFF VALVE

    SUGIYAMA AKINARI | European Patent Office | 2018

    Free access