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:
Jan. 14, 2020
Filed:
Jan. 23, 2013
Applicant:
Allison Transmission, Inc., Indianapolis, IN (US);
Inventors:
Andrew De Freitas, Wigan, GB;
Brian Dutson, Manchester, GB;
Assignee:
ALLISON TRANSMISSION, INC., Indianapolis, IN (US);
Primary Examiner:
Int. Cl.
CPC ...
F16H 15/38 (2006.01); F16H 15/40 (2006.01);
U.S. Cl.
CPC ...
F16H 15/40 (2013.01); F16H 15/38 (2013.01); F16H 2015/383 (2013.01); Y10T 29/49826 (2015.01);
Abstract
A dual-cavity toroidal variator is disclosed herein. The torques from the first and second cavities are balanced by controlling each roller with mechanical devices rather than individually controlling each roller with a hydraulic actuator. The mechanical devices may be balancing mechanisms having a pivotable linking lever () by which the roller carrier () of the first cavity and the roller carrier () of the second cavity are linked.