Machine element or mechanism – Elements – Flywheel – motion smoothing-type
Reexamination Certificate
2004-06-30
2009-02-03
Johnson, Vicky A (Department: 3656)
Machine element or mechanism
Elements
Flywheel, motion smoothing-type
Reexamination Certificate
active
07484434
ABSTRACT:
A torsional vibration damper is provided which includes a primary mass, a secondary mass, and a damping unit. The damping unit includes a plurality of coil springs, a pair of end guides, and a friction member. The plurality of coil springs are situated in series and disposed one after the other within the divided portions of the ring-shaped chamber. The pair of end guides are slidably disposed within each divided portion of the ring-shaped chamber and support outer ends of the end coil springs among the plurality of elastic members. The friction member is slidably disposed between neighboring elastic members, and it is configured to be rubbed against the primary mass in response to compressions of the coil springs such that a friction force is generated in proportion to a relative rotation between the primary and secondary masses.
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Jee Tae Han
Jung Jae Hoon
Song Young Rae
Hyundai Motor Company
Johnson Vicky A
Morgan & Lewis & Bockius, LLP
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