| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquefied gas fuel supply device for an internal combustion engine equipped with an opening and closing valve device, capable of suppressing increase in costs without requiring direct operation. Ž<P>SOLUTION: The liquefied gas fuel supply device includes a purging means for recovering liquefied gas fuel in a common rail into a fuel tank while introducing the gas component of liquefied gas fuel to the common rail after stopping the internal combustion engine. The purging means includes at least either one of the purging passage and the gas phase introduction passage connected to the common rail; and the opening and closing valve device disposed on at least either one of the purging passage and the gas phase introduction passage, having a pressure receiving part receiving a fuel pressure sent from a feed pump to a high pressure pump, and closing a valve when the fuel pressure is equal to or more than a prescribed value and opening the valve when the fuel pressure is less than the prescribed value. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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