Patent ID: 7134378

Claim:
A transmission with a roller transmitting a drive torque between a driving toroidal disk and a driven toroidal disk, with a transmission ratio between the driving toroidal disk and the driven toroidal disk being continuously variable according to a pivot position of the roller, the pivot position of the roller being controlled via a regulating force applied by at least one piston ( 10 ), the at least one piston ( 10 ) being acted upon by a pressure medium via two pressure spaces ( 14 , 15 ), regulating slide valves ( 17 , 22 ) for generating pressures in the pressure spaces ( 14 , 15 ) according to a hydraulic control pressure supplied to the regulating slide valve ( 17 , 22 ), each pressure space ( 14 , 15 ) being connected to a different regulating slide valve ( 17 , 22 ), each regulating slide valve ( 17 , 22 ) including a regulating slide ( 26 ) and at least one of the regulating slides ( 26 ) having exactly two control edges ( 38 , 70 ), the regulating slides ( 26 ) of the different regulating slide valves ( 17 , 22 ) being acted upon by different control pressures).