To provide a valve by which each part of a valve seat is pressed in a uniform manner by a valve element even in the case where the valve element gets close to the valve seat in a tilted state.SOLUTION: A fuel cutoff valve 10 opens/closes a passage GP through which gas within a fuel tank FT is fed to the outside. The fuel cutoff valve 10 comprises: a housing 30 including a protrusion 31c enclosing an opening 31b that is one end of the passage GP; and a displacement part 50 which is disposed at a lower side of the protrusion 31c and displaced within the housing 30 in accordance with a position of a liquid level of a fuel of a liquid within the housing 30, the displacement part 50 including in its upper end a valve element part 55 which is brought into contact with the protrusion 31c, thereby cutting off circulation of the liquid fuel through the opening 31b. The valve element part 55 includes: a tabular portion 56b in contact with the protrusion 31c, the tabular portion 56b occupying a region including the region to be occupied by the protrusion 31c in the case of projection in a direction Dm of displacement of the displacement part 50, and having elasticity; and a first support portion 56c which is included in the region to be occupied by the protrusion 31c in the case of projection in the direction Dm and supports the tabular portion 56b.SELECTED DRAWING: Figure 10
【課題】弁体が傾いた状態で弁座に接近した場合にも、弁座の各部を弁体が均一に押圧する弁を提供する。【解決手段】燃料遮断弁10は、燃料タンクFT内のガスを外部に送る通路GPを開閉する。燃料遮断弁10は、通路GPの一端である開口31bを囲む突部31cを備える筐体30と、突部31cの下方に配され、筐体30内の液体の燃料の液面の位置に応じて筐体30内で変位する変位部50であって、突部31cと接触することにより開口31bを通じた液体燃料の流通を遮断する弁体部55を上端に備える変位部50と、を備える。弁体部55は、突部31cと接触する板状部56bであって、変位部50の変位の方向Dmに沿って投射したときに、突部31cが占める領域を含む領域を占め、弾性を有する板状部56bと、方向Dmに沿って投射したときに、突部31cが占める領域内に含まれ、板状部56bを支持する第1支持部56cと、を備える。【選択図】図10
FUEL CUTOFF VALVE
燃料遮断弁
2021-02-22
Patent
Electronic Resource
Japanese
IPC: | F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |