Torque transmission device

A torque transmission device (2) comprising a planetary gear train (22), which has a rotatable component (28), a stationary housing (18), and a clutch device (32) for selective coupling of the component (28) with the stationary housing (18), characterized in that the clutch device (32) has a friction-locking first clutch (34) and a positive-locking second clutch (36), wherein the component (28) may be coupled to the stationary housing (18) via the first clutch (34) before a coupling by means of the second clutch (36),

• wherein the first and second clutches (34, 36) are actuatable via a common actuating element (58) or the first clutch (34) is actuatable via a first actuating element (72) and the second clutch (36) is actuatable via a second actuating element (74), wherein the common actuating element (58) is designed as a hydraulically drivable actuating piston or the first actuating element (72) and the second actuating element (74) are designed as hydraulically drivable actuating pistons (76, 78), and
• wherein a first pressure chamber (80) is assigned to the first actuating piston (76) and a second pressure chamber (82) is assigned to the second actuating piston (78), wherein the first pressure chamber (80) is delimited at least partially by the second actuating piston (78) and a reset force may be generated on the second actuating piston (78) by means of a hydraulic pressure within the first pressure chamber (80), or the second pressure chamber (82) is at least partially delimited by the first actuating piston (76) and a reset force on the first actuating piston (76) may be generated by means of a hydraulic pressure within the second pressure chamber (82).