Hydrodynamic-mechanical power transmission device

A hydrodynamic-mechanical power transmission device, comprising:

• an input shaft configured for at least indirectly connecting to a drive unit;
• at least one output shaft configured for connecting to a working machine with a variable speed;
• a basic transmission configuration including a hydrodynamic converter and a superimposition transmission, the hydrodynamic converter including a pump impeller and a turbine wheel, the superimposition transmission being formed as a planetary transmission including a ring gear, a first sun gear, and a planet carrier with a plurality of planetary gears, the input shaft being connected to the pump impeller and the ring gear, the turbine wheel being connected to the first sun gear, the at least one output shaft being connected at least indirectly to the planet carrier;
• and
• an additional transmission stage, which is arranged in a direction of a power transmission between the superimposition transmission and the at least one output shaft, the additional transmission stage including an input and an output, the input of the additional transmission stage being connected to the planet carrier of the superimposition transmission, the output of the additional transmission stage being connected to or forming the at least one output shaft, wherein the plurality of planetary gears is a first plurality of planetary gears, wherein the superimposition transmission includes an output, wherein the additional transmission stage is formed as a planetary gear arrangement, which includes at least one planet carrier that is configured for being locked in place or for being in a fixed housing, a second plurality of planetary gears, a gear which meshes with the second plurality of planetary gears and which is coupled with the output of the superimposition transmission, and a second sun gear which meshes with the second plurality of planetary gears of the additional transmission stage and which is coupled with the output shaft or is formed integrally with the output shaft.