ECD SYSTEM


  1. CONSTRUCTION


    1. The pressure discharge valve regulates the fuel pressure. In the pressure discharge valve, the plunger opens and closes in accordance with the actuation signals from the injector driver. Thus, it regulates pressure by releasing excess pressure from the common-rail assembly. In addition, it has a pressure reduction function in case of emergency.

      B0020IEC02
      *1 Common-rail Assembly *2 Pressure Discharge Valve
      *3 Plunger - -
      *a Pressure Discharge Valve Cross Section - -
      B005L08 Fuel from Common-rail (High Pressure) B005L0G Fuel to Fuel Tank (Excess Pressure)