Anthony Lee Lyscio

US Patent:

20090197690, Aug 6, 2009

Filed:

Feb 6, 2008

Appl. No.:

12/026696

Inventors:

Anthony L. Lyscio - Southfield MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS, INC. - DETROIT MI

International Classification:

F16C 3/02

US Classification:

464180

Abstract:

An axle shaft which is inherently damped very near the source of the oscillation, via inner and outer axle components with a damping ring that couples between them, wherein the inner component which serves as the axle shaft, has a torsional stiffness different from (i.e., less than) that of the outer component which serves as a concentrically disposed axle sleeve. Under torsional load, both the inner and outer components transmit the torsional load, wherein the inner component twists more than the outer component, resulting in relative displacement therebetween. The damping ring experiences the relative displacement and consequently damps energy of the twist, whereby powerhop and associated driveline disturbances, such as for example axle shutter, are reduced.