Dual-mode, viscous crankshaft vibration damper

Details Dual-mode, viscous crankshaft vibration damper Dual-mode, viscous crankshaft vibration damper

1996-04-26

1998-05-12

Marmor, Charles A.

Machine element or mechanism

Elements

Flywheel, motion smoothing-type

74572, F16F 1510

Patent

active

057492697

ABSTRACT:
A viscous torsional vibration damper having an annular chamber surrounding a central hub and first and second annular inertia masses located within the annular chamber. The innermost first inertia mass is closely coupled with an inner surface of the working chamber, and has a Teflon bearing arranged between the first inertia mass and the inner surface. The second annular inertia mass is closely mechanically coupled with the first inertia mass by lateral damping units, such as by elastomeric O-rings, such that the combination of the first and second inertia masses and the damping units are substantially freely rotatable within the working chamber due to the Teflon bearing but are arranged to absorb lateral vibrations by the lateral dampers. A viscous fluid is disposed within the working chamber surrounding the inertia masses.

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