Patent ID: 6524190
Filing Date: 2003-02-25
Classification: F16F

Abstract:
A vibration damping apparatus, comprising:an input member rotatable about a predetermined axis and including two dished components non-rotatably connected to each other and defining an annular chamber, one of said components including a radially inner portion having openings for fasteners arranged to secure said one component to a rotary output part of a prime mover; an output member rotatable about said axis with and relative to said input member; a bearing interposed between said input and output members radially outwardly of said openings; and a damper assembly arranged to yieldably oppose rotation of such input and output members relative to each other and including energy storing elements at least partially confined in said chamber, said chamber having a sealed radially outer portion and said output member comprising a radially inner portion including a hub having an internal gear directly connectable with and arranged to transmit torque to and receive torque from a rotary part of a power train of the prime mover, said damper assembly further comprising a rotary annular output element arranged to transmit torque between said input member and said hub and having at least some freedom of rotation relative to said input member against the opposition of at least some of said energy storing elements.