FUEL TANK APPARATUS FOR LIQUEFIED GAS, TO IMPROVE MAINTENANCE PERFORMANCE

摘要

PURPOSE: A fuel tank apparatus for liquefied gas is provided to facilitate maintenance and to secure safety. CONSTITUTION: A fuel tank apparatus for liquefied gas(F) comprises a casing(2A) of a cylindrical shape, a closing unit(6A), and a pump assembly(11A). The casing is inserted in a fuel tank(1A) from the head part. The casing has an open surface opening toward the atmosphere at the upper end and has an open surface opening toward the liquefied gas of the fuel tank at the lower end. The closing unit closes the lower open surface. The pump assembly has a cover member(15A) closing the upper open surface; a pump(16) arranged to the lower side of the cover member; a motor for driving the pump; a discharge passage(17) extended upward from the pump; and a conductive wire(18) connected to the motor. The pump assembly is inserted in the casing. The cover member is fixed to the fuel tank in a state of closing the upper open surface. While the closing unit opens the lower open surface, the liquefied gas of the fuel tank flows into the casing and is pressed by the pump and is delivered to injection valves from the discharge passage. While the closing unit closes the lower open surface, the pump assembly is separated from the fuel tank.