The invention relates to a valve device for a fuel tank. The invention provides a valve device for a fuel tank, which can limit fuel leakage to the outside of the fuel tank although a full tank limit position is raised. A valve device (10) for a fuel tank is provided with: a housing (15) having a partition wall (30), an opening (33), and a fuel vapor discharge port (55); and a float valve (70) in which a cylindrical wall (60) that communicates with the discharge port (55) is provided so as to extend in the ventilation chamber (R), a cutout section (61) is formed in the lower part of the tip section in the extending direction of the cylindrical wall (60), the partition wall (30) has a top wall (31) in which an opening (33) is formed, and a peripheral wall (35) extending downward from the peripheral edge of the top wall (31), and in which the opening (33) extends downward from the peripheral edge of the top wall (31) when viewed from the axial direction of the cylindrical wall (60) and the valve axis direction, the opening (33) extends downward from the peripheral wall (35). A part of the peripheral edge of the top wall (31) and a part of the peripheral wall (35) are positioned within the cylindrical wall (60) via the cutout portion (61).
本发明涉及燃料箱用阀装置。本发明提供一种虽然使满箱限制位置上升,但能限制向燃料箱外的燃料泄漏的燃料箱用阀装置。该燃料箱用阀装置(10)具有:外壳(15),具有分隔壁(30)、开口(33)、燃料蒸气排出口(55);以及浮子阀(70),在通气室(R)延伸设置有与排出口(55)连通的筒状壁(60),在筒状壁(60)的伸出方向顶端部的下部形成有缺口部(61),分隔壁(30)具有形成有开口(33)的顶壁(31),从顶壁(31)周缘朝向下方伸出有周壁(35),在从筒状壁(60)的轴向和阀轴方向观察时,顶壁(31)的周缘的一部分和周壁(35)的一部分经由缺口部(61)而位于筒状壁(60)内。
Valve device for fuel tank
燃料箱用阀装置
2024-07-12
Patent
Electronic Resource
Chinese
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 |