Machine element or mechanism – Elements – Flywheel – motion smoothing-type
Patent
1989-10-30
1990-10-16
Lindsey, Rodney M.
Machine element or mechanism
Elements
Flywheel, motion smoothing-type
F16F 1510
Patent
active
049626779
ABSTRACT:
A torsional vibration damper used to dampen harmonic vibration frequencies set up in crank shafts of reciprocating internal combustion engines, the balancer having a hub section (14) to be fitted to the crank shaft requiring balancing the hub section (14) defining an outwardly directed peripheral face (15) having an annular ring (30) of elastomeric material received thereover, the balancer further having an inertia ring (13) press fitted over said elastomeric material ring (30) with an inwardly directed face (35) of said inertia ring (13) engaging said elastomeric material (30), the inertia ring (13) including an inwardly directed member (19) located at one axial end of said inertia ring (13) having a free end located at a radial distance from the axis of rotation of the shaft being balanced less than the radial distance of the peripheral face (15) of said hub section (14) from the axis of rotation, and a plastically deformable member (33) located at the other axial end of said inertia ring (13), said deformable member (33) having a free end in an undeformed state spaced from said axis of rotation, a distance no less than the radial distance between the axis of rotation and an outer surface of said elastomeric material (30), the free end of said deformable member (33) being located, in a deformed state, at a radial distance from said axis of rotation less than the radial distance of the peripheral face (15) of said hub section (14) from the axis of rotation of the balancer.
REFERENCES:
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patent: 3901101 (1975-08-01), McGavery
patent: 4150587 (1979-04-01), Bremer, Jr.
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