Torsional vibration damper for use in drive train of motor vehicle, has ramp device with ramps and counter ramps to cause displacement of spring element, where ramps and counter ramps are arranged at respective primary and secondary masses

摘要

The damper (1) has a primary mass (5) and a secondary mass (6) that are arranged coaxially to each other and rotatable relative to each other in a circumferential direction. A ramp device (8) has ramps and counter ramps for causing an axial displacement of a plate spring element during rotation in the circumferential direction. The ramps are arranged at the primary mass, and the counter ramps are arranged at the secondary mass, where the spring element is clamped in an axial direction between a counter ramp element (16) and an axial supporting element (24).