Patent ID: 8991577
Filing Date: 2015-03-31
Classification: F16D

Abstract:
1. A parallel, dual clutch unit ( 2 ) for arrangement in a drivetrain of a motor vehicle between a drive unit ( 4 ) and a transmission ( 6 ), which comprises a first multi-plate clutch ( 30 ) assigned to a first transmission input shaft ( 10 ) and having a first plate pack ( 38 ), a first inner plate carrier ( 36 ) and a first outer plate carrier ( 34 ) for selective torque transmission between the drive unit ( 4 ) and the first transmission input shaft ( 10 ), and a second multi-plate clutch ( 32 ) assigned to a second transmission input shaft ( 12 ) and having a second plate pack ( 44 ), a second inner plate carrier ( 42 ) and a second outer plate carrier ( 40 ) for selective torque transmission between the drive unit ( 4 ) and the second transmission input shaft ( 12 ), the first inner plate carrier ( 36 ) being embodied as input side and the first outer plate carrier ( 34 ) as output side of the first multi-plate clutch ( 30 ), wherein the second inner plate carrier ( 42 ) is embodied as output side and the second outer plate carrier ( 40 ) as input side of the second multi-plate clutch ( 32 ), wherein the first inner plate carrier ( 36 ) and the second outer plate carrier ( 40 ) comprise a common radial support portion ( 46 ) for radially supporting these, the first inner plate carrier ( 36 ) comprising a first tubular inner plate bearing portion ( 50 ), which extends from the radial support portion ( 46 ) in an axial direction ( 16 ), and the second outer plate carrier ( 40 ) comprising a first tubular outer plate bearing portion ( 48 ), which extends from the radial support portion ( 46 ) in the opposite axial direction ( 18 ), the diameter of the first tubular outer plate bearing portion ( 48 ) being designed larger than the diameter of the first tubular inner plate bearing portion ( 50 ) or the first tubular outer plate bearing portion ( 48 ) being integrally formed with the radial support portion ( 46 ) and the first tubular inner plate bearing portion ( 50 ) being connected by a positively interlocking, frictional or cohesive material connection to the radial support portion ( 46 ), wherein the first outer plate carrier ( 34 ) comprises a second tubular outer plate bearing portion ( 52 ), which together with the first tubular inner plate bearing portion ( 50 ) of the first inner plate carrier ( 36 ) defines a first annular space ( 68 ) to accommodate the first plate pack ( 38 ), whilst the second inner plate carrier ( 42 ) comprises a second tubular inner plate bearing portion ( 62 ), which together with the first tubular outer plate bearing portion ( 48 ) of the second outer plate carrier ( 40 ) defines a second annular space ( 70 ) to accommodate the second plate pack ( 44 ), at least the inside or outside diameter (d i , d a ), of the first and second annular spaces ( 68 , 70 ) being of equal size and the first outer plate carrier ( 34 ) comprising the second tubular outer plate bearing portion ( 52 ) offset radially inwards in relation to a tubular bridging portion ( 54 ), which bridges the first tubular outer plate bearing portion ( 48 ) of the second outer plate carrier ( 40 ) radially outwards, said second tubular outer plate bearing portion ( 52 ) of the first outer plate carrier ( 34 ) being rotationally fixed by a releasable connection to the bridging portion ( 54 ), these being fitted together in an axial direction ( 16 , 18 ).