| 摘要 |
PROBLEM TO BE SOLVED: To provide an evaporated-fuel treatment device capable of easily discharging evaporated fuel from a fuel tank into a canister while a fuel is supplied into the fuel tank. SOLUTION: When an internal combustion engine is stopped, and a cap is removed from an oil filler port 33 and the fuel is supplied into the fuel tank 32, an ECU 70 detects the variation with time of the voltage detected by a level gauge 66, and determines whether the oil is supplied or not into the fuel tank 32. When the ECU 70 determines that the oil is supplied into the fuel tank 32 based on the voltage detected by the level gauge 66, turns on the power to a pump 50 to generate a fluid flow on the filter 52 side of the canister 34. Then, a back pressure chamber 48 is depressurized through a back pressure passage 112, a diaphragm 46 is displaced in the direction that communicates the canister port 45 of an oil supply valve 40 with a tank port 44, and the oil supply valve 40 is opened. The evaporated fuel produced in the fuel tank during the oil supply passes through a passage 100 and the oil supply valve 40 and immediately sucked into the canister 34. COPYRIGHT: (C)2007,JPO&INPIT
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