Torsional vibration damper for internal combustion engine, has rotatable mass element arranged at input side or output side against restoring force of restoring device relative to input side or output side

摘要

The vibration damper (2) has an input side (16), an output side (18), and an energy storage (34) for rotational elastic coupling of the input and output sides in circumferential directions (12, 14). A rotatable mass element (42) is arranged at the input side or the output side against a restoring force of a restoring device (40) relative to the input side or the output side. The restoring device is automatically adjustable based on a rotational speed of an associated internal combustion engine.