Patent ID: 6402622
Filing Date: 2002-06-11
Classification: F16D,F16F

Abstract:
A torsional vibration damper for absorbing and compensating rotary shocks and torque fluctuations of an internal combustion engine, comprising an input disc part adapted for connection to the internal combustion engine and an output disc part adapted for connection to a driven unit, and at least one energy accumulator interposed between the disc parts and acting in a circumferential direction; said input disc part having first biasing means, said output disc part having second biasing means, and said first and second disc parts being rotatable relative to each other against the action of the energy accumulator; and further comprising a suspension device that houses the at least one energy accumulator and is divided into a first socket part and a second socket part, the socket parts being rotatable in relation to each other as well as in relation to the input disc part and the output disc part; whereinfor a first sense of relative rotation between the input and output disc parts, the first biasing means engage the first socket part and the second biasing means engage the second socket part; and for a second sense of relative rotation, opposite to the first sense, between the input and output disc parts, the first biasing means engage the second socket part and the second biasing means engage the first socket part; and for either sense of relative rotation between the input and output disc parts, said engagements between biasing means and socket parts are form-locking engagements free of frictional engagement; so that for either sense of relative rotation between the input and output disc parts, the at least one energy accumulator is biased in a compressive sense between both of the socket parts.