| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel injection device capable of substantially reducing a work load of a worker required for the replacement work of a first filter and a second filter compared to a work load in the past. <P>SOLUTION: In the fuel injection device provided with a fuel tank 1 and the first filter on a vehicle body side, and a feed pump 3, the second filter, a supply pump 5 and a common rail 6 on an engine side, fuel in the fuel tank 1 is sucked up by the feed pump 3 through the first filter and fed into the supply pump 5 from the feed pump 3 through the second filter. The pressure of the fuel is raised by the supply pump 5 and the pressurized fuel is accumulated in the common rail 6. The fuel is then guided to an injector 7 from the common rail 6 to be injected into a cylinder. The first filter and the second filter are made into an upstream main filter 8 and a downstream main filter 4 with the same textures, and replacement intervals of the downstream main filter 4 are set relatively long compared to the upstream main filter 8. <P>COPYRIGHT: (C)2013,JPO&INPIT |
