Fuel pumping and injection systems

(57) As for a summary fueling means, this control valve has the armature (60) fixed to it including an electromagnetism operation type fuel control valve (32), and an armature (60) resides permanently in the armature cave (56) filled up with fuel. An armature (60) carries out an electromagnetic periodic motion by Hazama of the second position that opens the first position and control valve (32) that close and pump up a fuel control valve (32) and stop the flow of the fuel to a chamber (16), and fuel pumps up and through which it is made to flow into a chamber (16). An armature (60) is the flat plate fixed to the control valve (32), is equipped with a series of predetermined flowing-through holes and/or slots of form, is formed, is useful for prevention of (i) cavitation erosion, and raises the hysteresis characteristics of (ii) fuel control valve (32).