Dual clutch gear box for powertrain in motor car, has partial gear box parts coupled with drive shaft and comprising rotatable elements temporarily coupled with one another by friction device that provides frictional contact

摘要

The gear box (4) has two partial gear box parts (3) with gear box input shafts e.g. sleeve shafts, coupled with a drive shaft of a drive unit (2) by a friction clutch (7). Rotatable elements (8, 10) of the two partial gear box parts are temporarily coupled with one another by friction device (11). The friction device provides mechanical and/or fluidic frictional contact and is arranged between the gear box input shafts. The friction device is arranged between clutch disks of the friction clutch. The friction device is arranged between gear wheels of the partial gear box parts.