Abstract: A tire assembly includes an acoustic foam core disposed within a cavity of the tire for attenuating noise. The foam core defines an expanding radial force that biases the foam core against an inner surface of the tire to secure a position of the foam core relative to the tire. The foam core may include an annular base having a plurality of nodules disposed on an outer periphery of the annular base for engaging the inner surface of the tire and to position the annular base away from the inner surface of the tire. The foam core may further include a plurality of positioning tabs disposed on opposing axial ends of the annular base for engaging side walls of the tire to position the annular base away from the side walls of the tire.
Type:
Application
Filed:
June 24, 2011
Publication date:
December 27, 2012
Applicant:
GM GLOBAL TECHNOLOFGY OPERATIONS LLC
Inventors:
Joseph K. Moore, Christopher A. Stirlen, Kenneth L. Oblizajek, Jinshuo Zhu, David L. Howland, Garland G. Wong, Jeffrey D. Roman, Mario Turco