| 摘要 |
PROBLEM TO BE SOLVED: To prevent liquefied gas fuel from being supplied under a liquid condition and air fuel mixture from getting excessively rich, especially when an engine is started. SOLUTION: A liquefied fuel passage is branched, and a first shut off valve 21 and a second shut off valve 22 are arranged on one end side and another side respectively. The first shut off valve 21 is provided with a diaphragm 28 operated by pulsation pressure in a crank chamber 4, and opens the liquefied fuel passage 15 when negative pressure is applied on the diaphragm 28. The second shut off valve 22 is energized by generated power and is opened when the generated power of the generator 3 driven by an engine exceeds an established value. Although a battery 42 for heaters 40, 41 pre-heating liquefied gas is provided, the heaters 40, 41 are driven by the generated power in stead of output of the battery 42 and the second shut off valve 22 is opened when the engine shifts from rotation at a time of start to normal rotation and output of the generator 3 is increased. COPYRIGHT: (C)2007,JPO&INPIT
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