Patent ID: 7591755

Claim:
A hydraulic circuit for a toroidal transmission with: a single pump, a main pressure controller which is connected to the pump for generating a main line pressure in a main line, a roller controller which is connected to the main line, two roller control pressures being generated in the roller controller from the main line pressure, at least one hydraulic roller actuator for spatial adjustment of a roller in a toroidal space which is set up by two disks, the roller actuator being connected to the roller controller, a disk controller which is connected to the main line, a disk control pressure being generated in the disk controller from the main line pressure, at least one hydraulic disk actuator for axially adjusting at least one of the disks, the disk actuator being connected to the disk controller, a clutch pressure controller which generates a clutch pressure in a clutch line from the main line pressure, a cooler pressure controller which generates a cooling pressure in a cooling line from the clutch pressure, and a cooler which is connected to the cooling line.