Accumulator fuel injection system

摘要

An accumulator fuel injection system can be provided with which fuel pressure pulsation in the common rail (100) caused by fuel injection can be suppressed by extremely simple means with a low cost system without using an electronic control device and so on. The accumulator fuel injection system having a common rail for supplying high pressure fuel accumulated in an accumulating room (4) of said common rail through high pressure fuel outlets (3a, 3b) provided equally spaced along the longitudinal direction of said common rail to the fuel injection valve of each cylinder at predetermined injection timing is composed such that a pressure reflecting member having a plurality of projections (10a) is provided at an end part of said accumulating room where a pressure wave generated therein is reflected from such that said projection is directed toward said accumulating room.