Patent ID: 6119840
Filing Date: 2000-09-19
Classification: F16F,Y10T

Abstract:
A torsional vibration damper, comprising:a first flywheel mass arrangement rotatable about a first axis of rotation;a second flywheel mass arrangement rotatable with and relative to said first flywheel mass arrangement about said first axis of rotation;a third flywheel mass arrangement rotatable with and relative to said second flywheel mass arrangement and said first flywheel mass arrangement about said first axis of rotation;a spring arrangement operatively mounted for torsionally elastically coupling two of said first, second, and third flywheel mass arrangements;a gear arrangement coupling said first flywheel mass arrangement to said second flywheel mass arrangement and coupling said second flywheel mass arrangement to said third flywheel mass arrangement;said gear arrangement comprising a first toothing arranged along a circumference of said first flywheel arrangement, a second toothing arranged along a circumference of said third flywheel, and a torsion transmission device comprising a roller carrier rotatably mounted on said second flywheel mass arrangement for rotating about a second axis of rotation and a plurality of roller bodies rotatably mounted on said roller carrier for rotating about third axes, said third axes being distributed about said second axis of rotation and equidistant from said second axis of rotation; andsaid plural roller bodies engaging a portion of said first toothing for transmitting torsional forces between said first flywheel arrangement and said second flywheel arrangement and engaging a portion of said second toothing for transmitting torsional forces between said second flywheel arrangement and said third flywheel arrangement.