Sealing system and wet-running dual-clutch system with a sealing system

1. A sealing system comprising:

at least one elastic sealing device for an actuating device operable by a pressurizing agent;

a chamber pressurizable with the pressurizing agent, in a dual clutch system; and

an individual sealing device being located in a groove formed by the actuating device and a retainer, with at least two contact surfaces defining the groove being formed for the sealing device on the actuating device,

wherein the retainer has flanging or a bead in a radially inner area facing the sealing device, the flanging or the bead engaging a circumferential groove in the sealing device aligning the sealing device radially and/or axially.

2. The sealing system as recited in claim 1 wherein the actuating device is a piston element.

3. The sealing system as recited in claim 1 wherein the retainer on a low pressure side of the chamber is located on the actuating device.

4. The sealing system as recited in claim 1 wherein the retainer is a sheet metal element, thickness of the sheet metal element and the thickness of the actuating device in the area forming the groove being at a ratio of 1:5 to 1:7.

5. The sealing system as recited in claim 1 wherein the area on the actuating device forming the groove forms at least one axial and one radial contact surface for the sealing device.

6. The sealing system as recited in claim 5 wherein the individual contact surfaces on the actuating device are formed by the shaping during fabrication of the actuating device.

7. The sealing system as recited in claim 6 wherein the shaping is by forming.

8. The sealing system as recited in claim 5 wherein the contact surfaces are stamped.

9. The sealing system as recited in claim 5 wherein the contact surfaces are incorporated through subsequent metal-removing processing on the actuating device.

10. The sealing system as recited in claim 4 wherein the sheet metal element forms a contact surface in the axial direction.

11. The sealing system as recited in claim 4 wherein the sheet metal element is executed as a ring-disk-shaped element with a flat axial contact surface on the actuating device.

12. The sealing system as recited in claim 4 wherein the sheet metal element is connected to the actuating device in a rotationally fixed connection.

13. The sealing system as recited in claim 12 wherein the rotationally fixed connection is separable.

14. The sealing system as recited in claim 13 wherein the rotationally fixed connection is a frictional or a positive-lock connection.

15. The sealing system as recited in claim 12 wherein the rotationally fixed connection is non-separable.

16. The sealing system as recited in claim 15 wherein the rotationally fixed connection is a positive-lock connection.

17. The sealing system as recited in claim 16 wherein the rotationally fixed connection is a riveted joint, the riveted joint being formed by separate rivets or rivets extruded from the actuating device.

18. The sealing system as recited in claim 15 wherein the rotationally fixed connection is a materially bonded connection.

19. The sealing system as recited in claim 18 wherein the materially bonded connection is by spot welding.

20. The sealing system as recited in claim 12 wherein the connection between the sheet metal element and the actuating device is located at a slight distance from the groove.

21. The sealing system as recited in claim 1 wherein the sealing device is a radial seal.

22. The sealing system as recited in claim 1 wherein the flanging is oriented at right angles to the radially inner area of the retainer.

23. The sealing system as recited in claim 1 wherein the flanging or the bead engages a circumferential groove in the sealing device located between a main body and a sealing lip of the sealing device.

24. The sealing system as recited in claim 1 wherein the flanging or the bead engages a circumferential groove in the sealing device, which is located in addition to the circumferential groove between the main body and the sealing lip of the sealing device.

25. A dual clutch system comprising:

at least one input and two outputs;

two clutch devices located between the input and a respective one of the two outputs, each clutch having an input part and an output part that can be brought into operative connection by an actuating device operated by a pressurizing agent;

at least one of the chambers that is pressurizable with pressurizing agent being assigned to the actuating device; and

further comprising the sealing system as recited in claim 1 being located between the actuating device and a housing wall of the chambers.