ACCUMULATOR FUEL INJECTION DEVICE

摘要

To provide an accumulator fuel injection device, in which the operation of a pressure control valve for controlling a fuel pressure in an accumulation chamber can be stabilized. The accumulator fuel injection device includes a pressure control valve (6) for controlling a fuel pressure in an accumulation chamber (2) by moving an armature (13) in an armature chamber (22) and controlling the relief amount of a fuel from the accumulation chamber (2) by means of a valve element (11) formed integrally with the armature (13) in a control chamber (21) into which the fuel in the accumulation chamber (2) is introduced. A valve seat (10) disposed between the control chamber (21) and the accumulation chamber (2) of the pressure control valve (6)is provided with a means for damping the pressure transmitted from the accumulation chamber (2) to a valve seat (10).