Torsional vibration damper

Details Torsional vibration damper Torsional vibration damper

2005-08-09

2008-09-23

Siconolfi, Robert A. (Department: 3683)

Brakes

Frictional vibration damper

C464S068800, C464S062100, C464S064100, C192S070170, C192S213000, C192S214000

Reexamination Certificate

active

07426984

ABSTRACT:
A torsional vibration damper includes: a primary mass defining a substantially, ring-shaped chamber that is divided into at least two portions; a secondary mass relatively rotatably connected to the primary mass; and a plurality of damping units disposed in the divided portion of the ring-shaped chamber for coupling the primary and secondary masses to each other in a rotatable elastic manner. Each of the damping units includes a plurality of coil springs, and outer and inner wedge-shaped friction guides. The coil springs are situated in series and disposed one after the other within the divided portions of the ring-shaped chamber. The outer and inner wedge-shaped friction guides face each other along facing surfaces thereof. Each of the facing surfaces of the outer and inner wedge-shaped friction guides are entirely slanted with respect to a radial direction of the primary mass.

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