Dual clutch assembly for a transmission having two input shafts

A dual clutch arrangement for a transmission comprising a first input shaft and a second input shaft, the dual clutch arrangement comprising:

• a clutch housing that is attachable to a drive train in a rotationally fixed fashion;
• a first friction clutch that when subjected to a compressive force transmits a torque between the clutch housing and the first input shaft;
• a second friction clutch that when subjected to a compressive force transmits a torque between the clutch housing and the second input shaft, wherein said first friction clutch is placed radially outward of the second friction clutch;
• a first actuating unit comprising a piston that is axially displaceable and co-rotates with the clutch housing, said piston subjecting the first friction clutch to a compressive force when the first actuating unit is actuated;
• a second actuating unit comprising a piston that is axially displaceable and co-rotates with the clutch housing, said piston subjecting the second friction clutch to a compressive force when the second actuating unit is actuated;
• wherein
• the compressive force exerted by the piston of the first actuating unit and the compressive force exerted by the piston of the second actuating unit are directed in axially opposite directions with respect to each other;
• the first actuating unit and the second actuating unit are substantially axially symmetric and are arranged in the radial direction within the second friction clutch;
• the piston of the first actuating unit displaceably abuts with a radially inner end of the piston against a clutch hub that co-rotates with the clutch housing;
• and
• a clutch ridge having a radial ridge portion and at least one cylindrical ridge portion connects the clutch hub with an inner disk carrier of the second friction clutch.