Patent ID: 8608606

Claim:
A transmission device ( 1 ) having power splitting, the transmission device ( 1 ) comprising: a first power branch ( 3 ) having at least one hydrostatic device ( 4 ) having at least first and second hydrostatic shafts ( 28 , 29 ) and a second power branch ( 5 ) operatively connected thereto by a power splitting device ( 9 ), at least two driving ranges comprising a forward driving range and a reverse driving range, the forward and the reverse driving ranges being switchable by at least one shift element (K 1 to K 3 ) to be disengaged and at least one shift element (K 1 to K 3 ) to be engaged, each of the shift elements (K 1 to K 3 ) being arranged on a separate one of first, second, and third auxiliary shafts ( 14 , 15 , 16 ), the third auxiliary shaft ( 16 ) providing a third driving range via a third auxiliary shaft gear ( 37 ) meshing with a fixed gear ( 26 ) that is operatively connected to a ring gear ( 25 ) of the power splitting device ( 9 ), the power splitting device ( 9 ) provided for power splitting and for adding parts of an applied torque, which is transmitted by the power branches, the power splitting device ( 9 ) being a transmission apparatus designed as a planetary transmission which has two sun gears ( 21 , 22 ) which engage with common double planet gears ( 23 ) which, in turn, mesh with a ring gear ( 25 ), the fixed gear ( 26 ) that is operatively connected to the ring gear ( 25 ) further meshing with a first fixed gear ( 27 ) of the first hydrostatic shaft ( 28 ) associated with the hydrostatic device ( 4 ), and an additional fixed gear ( 35 ) of the first auxiliary shaft ( 14 ) meshing with a second fixed gear ( 36 ) of the first hydrostatic shaft ( 28 ) associated with the hydrostatic device ( 4 ).