Fuel injection pump for internal combustion engines

A fuel injection pump for internal combustion engines comprising a plurality of reciprocating in-line pump pistons, each of said pump pistons having at least one relief bore and guided in separate pump cylinders, pump work chambers in each of said cylinders, axially movable control slides for controlling said at least one relief bore in each of said pistons, first and second rotatable interrelated governor rods, driver members disposed on said first and second rotatable governor rods adapted to actuate said control slides relative to said pistons, said driver members comprising a first and second group of driver members,

• said first governor rod arranged to carry and move said first group of said driver members which arbitrarily moves said control slide into a position when said at least one relief bore of one of said pistons is constantly open, and said second governor rod is arranged to carry and move said second group of driver members that simultaneously controls normal operation;
• and said first and second governor rods are rotatably positioned one within the other, said second governor rod being a tubular body with an inner wall and provided with radially extending openings to receive said driver members of said first governor rod.