Fuel injection pump

A fuel injection pump of the distributor type for a multicylinder internal combustion engine that has a number of fuel injection lines (24) that corresponds to the number of cylinders of the internal combustion engine, having a pump piston (13) that defines a pump work chamber (17), said pump piston generates a fuel injection pressure in the pump work chamber (17) by means of an axial lifting motion and connects the pump work chamber sequentially to one of the fuel injection lines (24) by means of rotational movement, a rotating drive shaft (15) coupled to the pump piston (13) in a manner fixed against relative rotation and in a manner that permits its axial lifting motion, a cam drive (14;

• 14') for axial drive of the pump piston (13) in the lifting direction and that supports an cam disk (26) connected to the pump piston (13) in a manner fixed against relative rotation and that has a number of front cams (31) corresponding to the number of engine cylinders, and at least one roller (28) that rolls off of the front cams (31) of the cam disk (26) and is rotatably held in a fixed roller holder (30), a relief conduit (19) connected to the pump work chamber (17) and having a magnet valve (18) that controls the relief conduit (19) and determines a beginning of pumping of the pump piston (13) by blocking the relief conduit (19) and the end of pumping by opening of the relief conduit (19), a second cam disk (27) having the same number of front cams (32) is connected to the drive shaft in a manner fixed against relative rotation;
• that at least one second roller (29) that rolls off of the front cams (32) of the second cam disk (27) is rotatably held in the roller holder (30), and that the roller holder (30) is guided to be axially displaceable.