| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel injection device for an engine having a plurality of cylinders, inhibiting reduction of output, degradation of fuel economy and deterioration of emissions due to an injection pressure difference by reducing the injection pressure difference between the cylinders. <P>SOLUTION: The fuel injection device 1 includes a common rail 2 for storing fuel forcibly fed by a fuel pump 3 in a high-pressure condition, fuel injection valves 11, 21, 31, 41 arranged in the cylinders of the engine for injecting the high-pressure fuel stored in the common rail 2 into the cylinders in order, and fuel storage parts 119, 219, 319, 419 provided between the nozzle holes of the fuel injection valves and the common rail 2, respectively. The fuel storage parts are formed so that a capacity V1 of the fuel storage part 119 of the fuel injection valve 11, a capacity V3 of the fuel storage part 319 of the fuel injection valve 31, a capacity V4 of the fuel storage part 419 of the fuel injection valve 41, and a capacity V2 of the fuel storage part 219 of the fuel injection valve 21 are sequentially increased. <P>COPYRIGHT: (C)2010,JPO&INPIT |
