Patent ID: 7331173

Claim:
A hydraulic system ( 1 ) for a transmission with a starter clutch, the system comprising: a primary circuit ( 24 ) and a secondary circuit ( 5 ), a cooling system ( 9 ) for the starter clutch, a radiator ( 7 ) for hydraulic fluid, and a lubricant supply ( 10 ) for the transmission are integrated into the secondary circuit ( 5 ), the radiator ( 7 ) is arranged upstream from the cooling system ( 9 ) for the starter clutch, a volume flow of hydraulic fluid through the radiator ( 7 ) is limited by a controllable bypass line ( 11 ), which feeds into the secondary circuit ( 5 ) downstream from the radiator ( 7 ) and upstream from the cooling system ( 9 ) for the starter clutch, wherein the bypass line ( 11 ) is controlled via a combined pressure limiting and pressure reducing valve ( 6 ) arranged upstream from the radiator ( 7 ).