Patent ID: 9631563
Date: 2017-04-25
CPC Classifications: F02B,F02D,F16D,F16H,Y02T,Y10T

Claim:
1. A torsional pulse dampener comprising: a hollow shaft comprising a first set of splines extending longitudinally along an exterior surface of the hollow shaft; a piston encircling a first portion of the hollow shaft, wherein the piston comprises a second set of splines extending longitudinally along an interior surface of the piston, and wherein the second set of splines is slidingly mated with the first set of splines; a first spring arranged along a second portion of the hollow shaft adjacent the piston to provide axial restraint of the piston; a pulley encircling at least a portion of the piston, wherein the pulley is threadingly mounted to the piston via respective screw threads comprising an interior surface of the pulley and an exterior surface of the piston such that the piston is axially displaced relative to the pulley by rotation of the pulley; and one or more rotary bearings disposed within the torsional pulse dampener such that the piston is axially displaced along the hollow shaft by rotation of the pulley.