LIQUEFIED GAS FUEL SUPPLY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a liquefied gas fuel supply device capable of supplying liquefied gas fuel suitably vaporized by a vaporizer to an internal combustion engine even during a cold condition of the internal combustion engine. SOLUTION: This fuel supply device is equipped with a fuel tank 20 for storing LPG fuel, and the vaporizer 15 for heating and vaporizing the LPG fuel in a liquid phase state supplied through fuel piping 22 from the fuel tank 20, and is for supplying the LPG fuel in a gaseous phase state vaporized by the vaporizer 15 to an engine 10. The fuel supply device includes a fuel pipe 22 and a return pipe 23 for circulating the LPG fuel that is in a liquid phase state in the fuel tank 20 in the outside of the fuel tank 20, and a fuel pump 21 for feeding the LPG fuel in the liquid phase state from the fuel tank 20 to the fuel pipe 22 and returning the LPG fuel fed from the fuel pipe 22 to the fuel tank 20. The circulating LPG fuel is warmed in the vaporizer 15. COPYRIGHT: (C)2009,JPO&INPIT