| 摘要 |
PROBLEM TO BE SOLVED: To suppress vibration caused by reflected wave of fuel and pulsation pressure, and reduce a speaker effect of a pipe to prevent the generation of noise by forming a cylindrical part protruded into a communicating pipe in an inside end part of a fuel introducing pipe, and forming the cylindrical part with a damping pipe capable of elastically deforming. SOLUTION: A fuel introducing pipe 10 is inserted to one end of a communicating pipe 11. A cylindrical part longitudinally protruded into the communicating pipe 11 is formed in the inner end part 10a of the fuel introducing pipe 10, and is formed with a damping pipe 12 capable of elastically deforming. A socket 4 for receiving a tip end of an injection nozzle is attached to a bottom surface of the communicating pipe 11, for example, in the case of a four cylinder engine, four sockets 4 are attached at a prescribed angle. Even a fuel delivery pipe having the communicating pipe 11 manufactured by a steel pipe, it is possible to prevent vibration caused by a peculiar resonance frequency and damping property on the communicating pipe 11, and the generation of noise caused by a speaker effect. |
