| 摘要 |
PROBLEM TO BE SOLVED: To obtain an filling part structure for a fuel tank capable of setting valve opening pressure of a negative pressure valve for opening a fuel filler when the inside of the fuel tank has negative pressure, independently of valve opening pressure of an on-off valve for opening the fuel filler by inserting a fuel filling gun. SOLUTION: A positive pressure valve 50 opened when inside of the fuel tank 10 becomes positive pressure and a flapper valve 70 pressed by the fuel filling gun and opened are provided within a filler pipe 24. The negative pressure valve 60 opened when inside of the fuel tank 10 becomes negative pressure is provided separately from the flapper valve 70. The valve opening pressure of the flapper valve 70 can be set without considering valve opening operation when inside of the fuel tank 10 becomes negative pressure. COPYRIGHT: (C)2009,JPO&INPIT
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