it executes a rotary motion concentric with the throttle valve shaft 2 c or at least axially parallel with the throttle valve shaft 2 c in fig2 and 3 the rotatable support of the control element 2 and drive element 4 is clearly seen in all the drawing figures identical elements or those functioning identically are provided with the same reference numerals unless otherwise mentioned or shown in the drawing what is said about and shown in one of the drawing figures applies to one of the other exemplary embodiments as well unless the explanations say otherwise the details of the various exemplary embodiments can be combined with one another fig2 shows a longitudinal section through the control device in the plane of the axis of rotation of the throttle valve shaft 2 c the sectional plane and direction of view of fig2 is marked ii u2014 ii in fig3 fig3 shows an end on view of the control device the viewing direction of fig3 is marked iii in fig2 the restoring spring 12 is not shown in fig2 and 3 for the sake of greater clarity as fig2 shows the drive element 4 with the rotor 4 a and the magnets 4 b 4 c of the actuating drive 6 is rotatably supported in a way that saves space and engineering effort and expense directly on the throttle valve shaft 2 c of the control element 2 the restoring.