发明名称 LIQUEFIED GAS FUEL FEEDING SYSTEM
摘要 PROBLEM TO BE SOLVED: To prevent a leakage of a fuel from respective injection holes by maintaining the injection holes of respective fuel injector to an approximately atmospheric pressure at the time of stopping of an engine in the engine using a liquefied gas fuel. SOLUTION: A high pressure route closing valve 11 is provided on a high pressure fuel feeding passage S at an upstream side of a common rail 4 and a return route switch valve 12 and a pressure adjuster 7 are provided on a fuel return route at a downstream side of the common rail 4 to constitute a separation part K between both valves 11, 12. A first by-path route R1 connected to the fuel return route R through the pressure adjuster 7 is provided on the return route switch valve 12. A second by-path route R2 is provided between the separation part K and the fuel return route R and a by-path route closing valve 13 and a compressor 10 are provided thereon. A gas/liquid sensor 21 and a pressure sensor 22 are provided at the separation park K. The respective valves or the like are controlled at the time of stopping of the engine, and a pressure in the separation part K is reduced. COPYRIGHT: (C)2003,JPO
申请公布号 JP2003227416(A) 申请公布日期 2003.08.15
申请号 JP20020026360 申请日期 2002.02.04
申请人 CHUO MOTOR WHEEL CO LTD 发明人 IWATSUKI KEIJI;SUZUKI SHIGEHIRO
分类号 F02M21/02;(IPC1-7):F02M21/02 主分类号 F02M21/02
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