| 摘要 |
<P>PROBLEM TO BE SOLVED: To absorb pulsation sounds generated on a low frequency side in the communicating tube of a fuel delivery pipe, to reduce radiative noises generated on a high frequency side, and reduce both the vibration and noises of vehicle component members. <P>SOLUTION: In this fuel delivery pipe provided with the communicating tube 1 having a fuel passage 26 in its inside and provided with an absorbing surface on its wall surface, a fuel introducing pipe 2 connected to the communicating tube 1, and a socket 4 with one end connected to the communicating tube 1 so as to be communicated with the fuel passage 26 and the other end connected to the rear end of an injection nozzle, a recessed part and/or projecting part is formed in a longitudinal direction on the absorbing surface of the communicating tube 1, and cross-sectional shapes in a perpendicular direction to the tube axial of the communicating tube 1 are made different in two or more portions of the communicating tube 1. <P>COPYRIGHT: (C)2007,JPO&INPIT |
