| 摘要 |
PROBLEM TO BE SOLVED: To safely carry out maintenance such as replacement of a liquid phase injector by burning and scavenging high-pressure liquid phase fuel remaining inside liquid phase piping in an engine. SOLUTION: This liquefied gas fuel feeder comprises the liquid phase injector 9 for supplying the liquid phase fuel in a fuel tank 11 to the engine through the liquid phase piping 13 in a liquid state, and a gas phase injector 8 for supplying gas phase fuel in the fuel tank 11 to the engine through a gas phase piping 21 in a gas state. A liquid phase main valve 14 and a gas phase main valve 22 are closed during the maintenance. Then the liquid phase piping 13 and the gas phase piping 21 are communicated with each other, and the gas phase injector 8 is operated, and the engine is started. The liquid phase fuel inside the liquid phase piping 13, 17 is vaporized and injected from the gas phase injector 8, thus consuming the fuel inside the piping. COPYRIGHT: (C)2004,JPO&NCIPI
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