| 摘要 |
PROBLEM TO BE SOLVED: To surely supply fuel in a fuel tank to a discharge pump type fuel injection device with a simple and compact structure; and to surely recirculate vapor generated in the fuel injection device to the fuel tank. SOLUTION: The fuel injection device 38 is arranged in a section lower than a fuel outlet 46 provided on a bottom part of the fuel tank 24, a fuel filter 51 is arranged in a section lower than the fuel injection device 38, the fuel filter 51 is connected in a half way of fuel supply pipe passage 49 and 50 connecting the fuel outlet 46 and a fuel inlet 44 of the fuel injection device 38, and an upstream side of the fuel filter 51 is arranged in a section higher than a downstream side, and a fuel flow axis A of the fuel filter 51 is tilted with respect to a horizontal plane, and the upstream side of the fuel filter 51 and a vapor inlet 47 provided in a section higher than the inside of the fuel tank 24 and the fuel outlet 46 are connected by recirculation pipe passages 53 and 54. A trifurcated branch part 60 provided in the middle of the recirculation passages 53 and 54 is arranged in a section higher than a vapor outlet 45 arranged in a top part of the fuel injection device 38, and the trifurcated branch part 60 and the vapor outlet 45 are connected by a vapor return pipe passage 61. COPYRIGHT: (C)2008,JPO&INPIT
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