TORSIONAL VIBRATION DAMPER
The invention relates to a torsional vibration damper (100, 200, 300), in particular a dual-mass flywheel, having an input part (102) with a cover section (112) and an output part (104) with a flange part (116). Said flywheel comprises a common axis of rotation (106), about which the input part and the output part can rotate together and can rotate relative to one another in a limited manner. The damper also has a spring absorber device that is active between the input part and the output part, said device comprising a friction system that has a friction ring (120) lying between the cover section and the flange part. A spring device (122) is associated with the friction ring and a force can be applied to said ring in the extension direction of the axis of rotation in opposition to a force of the spring device (122) during the relative rotation of the input part and the output part once a predetermined rotational angle (218, 222, 402, 406) has been reached. The aim of the invention is to improve the construction and/or functionality of the torsional vibration damper.