| 摘要 |
PROBLEM TO BE SOLVED: To prevent the generation of vibration and noise due to a reflection wave and a pulsation pressure generated during injection of fuel, in a fuel delivery pipe used in an engine for an electronic control fuel injection type automobile. SOLUTION: A fuel residing space composed of a small partition chamber to absorb the pulsation pressure of fuel is formed in a state to be connected to a seat surface around the periphery of the fuel inflow port of a socket. At least one orifice hole is formed in the wall surface of the small partition chamber and communicated with the internal part of a communication pipe, and the outer shape of the small partition chamber is formed so as to enable a socket receiving hole formed in the communication pipe to pass through. The content volume of the small partition chamber is set to a value larger than the injection amount of a fuel injection nozzle. At least one wall surface of the small partition chamber forms a flexible absorb surface. |
