Due to the fact that the two sets of teeth
74,
76 have different diameters with respect to one another and, therefore, the two sun gears
78,
80 accordingly also have different ring gears with respect to one another, it is possible to exert an influence on the distribution of torques to the two torque transmission paths
48,
48. The closer the diameters of the sun gears
78,
80 to one another, and therefore the closer the diameters of the sets of teeth
74,
76 to one another, the more uniform the components of the torques transmitted via the two torque transmission paths
46,
48. In the embodiment example shown in
FIG. 1 in which the teeth
74 cooperating with the sun gear
78 have a greater diameter, a transmission ratio below
1 is achieved; with the reverse size ratio, a transmission ratio above
1 is achieved. In the former case, the torque transmitted via the first torque transmission path
46 is increased by making use of a torque flow reversal in the second torque transmission path
48, namely, while supported at the coupling arrangement
50. In this case also, a destructive superposition of the two torque flows in the torque transmission paths is used to obtain a substantially smoother total torque at the output region
82. In the latter case, i.e., when teeth
76 are larger and teeth
74 are smaller, the torque introduced at the input region
52 is divided corresponding to the size ratios in such a way that a torque flow is carried out in the same direction in both torque transmission paths
46,
48 and the two torque components guided in the same direction are superposed on one another in the coupling device
50.