The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 08, 2013
Filed:
Jan. 25, 2011
Paulo Falcone, Sao Paulo, BR;
Demetrio Vettorazzo Neto, Sao Paulo, BR;
Renato Freitas Silva, Sao Paulo, BR;
Flavio Gomes Dias, Indaiatuba, BR;
Paulo Falcone, Sao Paulo, BR;
Demetrio Vettorazzo Neto, Sao Paulo, BR;
Renato Freitas Silva, Sao Paulo, BR;
Flavio Gomes Dias, Indaiatuba, BR;
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A transmission synchronizer assembly is provided that alleviates noise associated with functional clearances and backlashes. A synchronizer ring is provided that has a periphery with at least one tab extending at least partially radially at the periphery. An annular hub has at least one recess configured to receive the at least one tab to axially align the synchronizer ring with the hub. The recess and the tab define a clearance when the tab is received in the recess. A damping material is provided in the clearance such that the damping material contacts the annular hub when the synchronizer is moved about the axis of rotation relative to the annular hub. Such movement may occur during engagement of an annular sleeve with a gear whose speed is synchronized with the sleeve by the synchronizer ring.