Torsional vibration damper

Details Torsional vibration damper Torsional vibration damper

F - Mech Eng,Light,Heat,Weapons

16

F

74/279, 267/56

F16F 15/12 (2006.01) F16F 15/16 (2006.01) F16F 15/173 (2006.01)

Patent

CA 1112911

I ABSTRACT "IMPROVED TORSIONAL VIBRATION DAMPER" A tuned viscous torsional vibration damper comprises an annular hub member adapted for attachment to a shaft which, in use, is subject to torsional vibration. An annular inertia member is wholly located within a closed annular chamber carried by the hub member and is journalled for rotation relative to the hub member with its radial side and circumferential surfaces disposed in close spaced, face to face relation with opposing surfaces of the chamber. A viscous fluid is contained between the opposing surfaces in shear relation. The hub has a plurality of teeth which project radially inwardly into the annular chamber and into respective circumferential gaps between adjacent, radially outwardly projecting teeth on the inertia member. In order to provide the damper with a plurality of discrete gas springs effective between the hub and inertia members, the circumferential spaces on the two sides of each hub tooth communicate directly with respective angularly spaced, radially inwardly extending bores in the hub member which contain respective volumes of gas forming said gas springs.

337302

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