Patent ID: 8777760
Filing Date: 2014-07-15
Classification: F16D

Abstract:
1. A device for torque transmission between a drive pulley and a shaft, the shaft having an end, the device comprising: a drive pulley, a coupling flange rotationally driven by the drive pulley, wherein the drive pulley comprises features for engagement with and retention of at least one of a V-belt and a single belt of a motor vehicle engine, a hub fitted at the shaft end and rotationally joined to the shaft, an elastic block in axial communication with a radial surface of the drive pulley and in radial communication with the coupling flange, wherein the elastic block provides a dampening force to the torque transmission device, and a torque-limiting friction ring having a plurality of projecting elastic portions extending radially therefrom, the torque-limiting friction ring fabricated having a unitary structure, the coupling flange and the hub each have a radial surface, and the two radial surfaces defining an axial gap and the gap having a value less than an axial thickness of the friction ring flange in a free state such that the friction ring is prestressed between the two radial surfaces.