Torsional vibration dampers
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United States of America Patent
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-
Apr 16, 2002
Grant Date -
N/A
app pub date -
Jan 27, 2000
filing date -
Jan 25, 1999
priority date (Note) -
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Abstract
A torsional vibration damper assembly having stable torsional vibration damping characteristics is provided. The damper assembly comprises an input element, an output element, a damper hub operatively connected to the output element and having a plurality of circumferentially spaced, radial hub arms, a drive plate operatively connected to the input element and having a plurality of circumferentially spaced windows, a plurality of compression springs extending between circumferentially opposed edges of the windows and the hub arms, and a ring member rotatable relative to the input and output elements and surrounding the compression springs for restricting radially outward bending of the compression springs. Since the ring member is not urged against its surrounding constituent parts of the damper assembly when it is subjected to a centrifugal force of itself and a centrifugal force of the compression springs, the damper assembly can provide stable torsional vibration damping characteristics.
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