a plug not illustrated which connects the electrical parts of the fuel injection pump with an electronic control device in which the actual values of the pump as well as other engine characteristics are processed to form setpoint values for the adjustment of the magnet in the second embodiment illustrated in fig3 the transducer 23 39 is designed in the same manner as in the first embodiment of fig1 and 2 for reasons of space the rotary magnet is not disposed obliquely so that the longitudinal plane of the rotary magnet coil 21 and the axis of the transducer 23 39 enclose between them an angle of about 30 u00b0 the transducer armature 25 39 is actuated by a cam like drive 36 which is directly connected with the shaft 16 18 the return of the rotary magnet is accomplished by two return springs 37 positioned in parallel the transducer type shown in fig4 is indicated by reference numeral 41 here a square ring 42 bent to conform to the rotary movement is used as core on one long side of which that is at the beginning and end thereof the induction coils 43 are disposed the short circuit ring 44 is articulated directly from the shaft 16 of the rotary magnet a plate 45 which supports the transducer 41 not depicted in further detail is screwed directly on the core 20 of the rotary magnet this.