Torsional damper with guided friction blocks
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United States of America Patent
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Jan 28, 1997
Grant Date -
N/A
app pub date -
Oct 25, 1994
filing date -
Nov 18, 1993
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Abstract
A torsional damper comprises first and second damper elements resiliently coupled by a spring arrangement, and a friction generating device. The friction generating device includes a plurality of friction blocks received in a plurality of windows, respectively, of the second damper element with play in the circumferential direction of the second damper element. The plurality of friction blocks are biased against a radially extending wall of the first damper element by a spring(s). For avoiding undesired interference engagement with the second damper element, the friction generating device includes a pair of axially opposed guide grooves for restricting radial mobility, with respect to an axis of rotation of the torsional damper, of the plurality of friction blocks.
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