| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a delivery pipe absorbing pulsation at both low fuel pressure and high fuel pressure and achieving compactness. <P>SOLUTION: This delivery pipe 1 includes an outer pipe 10 attached with a plurality of fuel injection valves 2, and a hollow inner pipe 20 provided inside of the outer pipe 10, and is so configured that fuel supplied to a fuel passage C1 between the outer pipe 10 and the inner pipe 20 is distributively supplied to each fuel injection valve 2 and fuel pressure pulsation is absorbed by deforming the inner pipe 20. A coil spring 30 stretchable in the same direction as the deformation directions of the right and left sidewalls 22, 21 of the inner pipe 20 is provided inside of the inner pipe 20. In such an original state that the inner pipe 20 is not deformed, intervals L1, L2 are formed between the right and left sidewalls 22, 21 and the coil spring 30, and the intervals L1, L2 are set smaller than the maximum deformable volumes of the right and left sidewalls 22, 21. <P>COPYRIGHT: (C)2010,JPO&INPIT |
