Component description Injection pump The EDC injection pump consists of a heavy-duty version of a conventional injection stage of the well- known Bosch P-pumps and, instead of the mechanical regulator, a flange-mounted electromagnetic fuel- delivery regulator with a control rod position transducer. Electromagnetic fuel-delivery regulator Description: The fuel-delivery regulator operates in conjunction with the P-pump. The most important component of the fuel-delivery regulator is a linear solenoid whose armature acts directly on the control rod thus determining the injection volume by means of the control position.
When no power is applied, the control rod is held in the stop position by means of a spring. The other important component in the regulator is a control rod position sensor. Injection pump Control rod Control rod position sensor Fuel delivery regulator (linear solenoid) Fuel-delivery regulator 7 1 2 6 3 4 5 Control rod position sensor Plug connection 11