F - Mech Eng,Light,Heat,Weapons – 16 – F
Patent
F - Mech Eng,Light,Heat,Weapons
16
F
267/101
F16F 15/12 (2006.01) F01D 15/10 (2006.01) F16F 7/02 (2006.01) H02K 7/18 (2006.01)
Patent
CA 1079313
TORSIONAL OSCILLATION DAMPER ABSTRACT OF THE DISCLOSURE A pair of concentric, rotatable shaft members which are assembled together in a shrink fit relationship. When one of the shafts is subjected to torsional oscilla- tions, the other twists therewith until the frictional forces therebetween which cause simultaneousjrotation of both rotatable shafts is overcome by elastic torque accumu- lated in the other shaft causing relative motion between the two shafts and resulting in energy being dissipated by dynamic fiction thus limiting the amplitude of the torsional oscillations. To prevent fretting between the adjacent, slippable surfaces, one on each shaft, a coating of non- fretting material is disposed on at least one of the two slippable surfaces, A thin sleeve of non-fretting material can also be assembled in a shrink fit relationship between the adjacent, slippable surfaces.
296722
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