| 摘要 |
PROBLEM TO BE SOLVED: To prevent generation of vibration and abnormal sound caused by reflected wave and pulsation pressure generated when fuel is injected, in a fuel delivery pipe to be used for an engine for electronic control fuel injection type automobile. SOLUTION: Fuel reservoir space constituted of a small partition chamber for absorbing fuel pulsation pressure is connected and arranged at a fuel inflow port of a socket, an orifice hole is formed on a wall surface of the small partition chamber, the orifice hole is communicated with the inside of a communication pipe and inner volume of the small partition chamber is set so as to be larger than injection quantity of one time of a fuel injection nozzle. In the case of a direct injection type internal combustion engine, the engine is constituted of a communication pipe connected with a high pressure fuel pump and a plurality of branch pipes, an orifice hole is formed in a connecting part of the branch pipe and the communication pipe, both of the branch pipe and the communication pipe are communicated with each other and inner volume of the branch pipe is set so as to be larger than injection quantity of one time. |
