| 摘要 |
A structure for a fuel filling section of a fuel tank is obtained, in which valve opening pressure of a negative pressure valve, that opens a fuel filling port when a fuel tank interior is negative pressure, can be set independently of a valve opening pressure of an opening/closing valve that opens the fuel filling port due to insertion of a fuel filling gun. A positive pressure valve (50), that opens when the fuel tank interior becomes positive pressure, and a flap valve (70), that opens by being pushed by the fuel filling gun, are provided within a filler pipe (24). Further, a negative pressure valve (60), that opens when the fuel tank interior becomes negative pressure, is provided separately from the flap valve (70). A valve opening pressure of the flap valve (70) can be set without considering a valve opening operation when a fuel tank (10) interior becomes negative pressure. |
