Brennstoffzufuhrvorrichtung für ein Fahrzeug

摘要

A vehicular fuel supplying apparatus comprising an in-tank type fuel pump mounted within the fuel tank from an opening in a bottom wall of a fuel tank. A fuel flowing out prevention valve 21 is connected between a discharge port 7a of a fuel pump 7 and a vehicle body side pipe 16 to an engine. A valve 25 seating on a seal surface and having a coil spring 28 is disposed within the fuel flowing out prevention valve 21 to provide a valve function, the valve opening pressure of the fuel flowing out prevention valve 21 from the side of the fuel pump is set to be greater than a total maximum value of a fuel head pressure inside of the fuel tank and an internal pressure of the fuel tank and is set smaller than a fuel discharge pressure at the fuel pump 7.