Torsional vibration dampers

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United States of America Patent

PATENT NO 4295546
SERIAL NO

06081192

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Abstract

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The disclosure illustrates a tuned viscous torsional vibration damper having a hub member for attachment to an internal combustion engine crankshaft. An annular inertia mass is journaled within the hub member to form a working chamber which contains a viscous liquid to damp out torsional oscillations of the inertia member relative to the hub. The hub has a series of inwardly directed vanes that are received in a corresponding number of slots in the internal member to define pairs of variable chambers filled with viscous liquid. Inwardly directed blind bores in each variable chamber form gas springs which interconnect the hub and inertia member to provide tuning.

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Patent Owner(s)

  • SIMPSON INTERNATIONAL (UK) LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Vollett, Eric M Huddersfield, GB2 1 4

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