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:
Jun. 23, 2015
Filed:
Jul. 11, 2013
Electrically actuated rotating band torque transmitting mechanism for hybrid and other transmissions
GM Global Technology Operations Llc, Detroit, MI (US);
Alan G. Holmes, Clarkston, MI (US);
Anthony L. Smith, Troy, MI (US);
Scott H. Wittkopp, Ypsilanti, MI (US);
Anthony J. Corsetti, Rochester Hills, MI (US);
Scott William Heitzenrater, Orion, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A torque transmitting mechanism includes a drum attached to one of a first member and a second member, and a shell attached to another of the first member and the second member. The drum and the shell are concentrically disposed about a longitudinal axis, with the shell concentrically disposed about the drum. An electric motor includes a stator, and a first rotor rotatable about the longitudinal axis relative to the stator. A band is coupled to the shell, wrapped around the drum between four and twelve complete revolutions, and includes a first end attached to the first rotor for rotation with the first rotor. The band includes a second end attached to a reaction member. Rotation of the first rotor tightens the band against the drum to bias the drum against the shell, to transmit torque between the first member and the second member.