Patent ID: 8146457
Filing Date: 2012-04-03
Classification: F16F,Y10T

Abstract:
1. An apparatus for damping torsional vibration in a shaft, the apparatus comprising: a plurality of retainer pockets spaced from each other along the shaft's an axis of rotation of the shaft and connected for contemporaneous rotation with the shaft; and a plurality of disks each disposed within one of the retainer pockets, each retainer pocket having a circular track wall and a central aperture through which the axis of rotation of the shaft extends, each disk being free to shift perpendicular to the axis of rotation of the shaft to engage and move along the circular track wall in response to the vibration; wherein each circular retainer pocket has a center that is at a predetermined radial offset distance relative to the axis of rotation of the shaft and the respective radial offsets are angularly spaced from each other about the axis of rotation of the shaft.