| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel tank system in which a solenoid valve of a pipe for making a fuel tank communicate with a canister can be downsized.SOLUTION: A diaphragm valve 46 is provided at a vent pipe 36 for making the fuel tank 14 communicate with a canister 34. A canister-side bypass passage 66 is formed between a back pressure chamber 58 of the diaphragm valve 46 and a canister-side vent pipe 36C. The canister-side bypass passage 66 is provided with a solenoid valve 68. The back pressure chamber 58 is provided with a cylindrical member 86, and when a valve member body 54 moves in a valve opening direction and comes in contact with the cylindrical member 86, the back pressure chamber 58 is reduced in volume. |
