| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection device inhibiting fuel pressure pulsation, thereby enabling stable fuel injection by a fuel injection valve and inhibiting vibration generation of fuel supply pipes. SOLUTION: A intermediate side pipe part 12 of a fuel supply path 8 is formed of a metal tube member 13 and a partition member 15, which is disposed to divide an inside of the tube member 13 into intermediate side first to fourth flow paths 14a-14d corresponding to first to fourth fuel injection valves 6a-6d and are made of flexible material. When fuel pressure pulsation is caused by opening of the first fuel injection valve 6a, the fuel pressure pulsation is propagated to high-pressure fuel in the intermediate side first flow path 14a, deforms the partition member 15 to uniform internal pressures of the intermediate first to fourth flow paths 14a-14d. The fuel pressure pulsation is reduced and comes not to affect fuel injection by the second to fourth fuel injection valves 6b-6d. It is therefore possible to avoid variation of fuel injection quantities by the fuel injection valves 6a-6d. COPYRIGHT: (C)2007,JPO&INPIT
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