Torsion vibration damper for vehicle clutch-plate - has main and pre-dampers with accumulator units tensioning transmission line.

摘要

A torsion vibration damper (1), particularly for a vehicle clutch-plate, has a pre-damper with a low stiffness accumulator and a main damper with a higher stiffness accumulator. The accumulators operate between the input and output sections of the dampers. The output section is a hub unit having a fixed flange with an internal profile, the internal profile inserting with play into an external profile. A friction section produces a friction hysteresis effect between flange and main damper input, on which the two accumulators are held under axial force. One accumulator tensions the input of the main damper and the hub, and the other tensioning the input of the main damper, the output of the pre-damper and the flange section. USE/ADVANTAGE - Improved operational life, simple, compact design.