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:
Jul. 02, 2013
Filed:
Oct. 18, 2010
Daryl A. Wilton, Macomb, MI (US);
James M. Hart, Belleville, MI (US);
Hamid Vahabzadeh, Oakland, MI (US);
Daryl A. Wilton, Macomb, MI (US);
James M. Hart, Belleville, MI (US);
Hamid Vahabzadeh, Oakland, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A dual clutch actuation assembly includes a housing, an annular central piston, a plurality of satellite pistons, and an annular apply member. The housing includes an inner cylindrical wall, an outer cylindrical wall, and a plurality of satellite cylindrical walls. The inner and outer walls define an inner piston annulus and the satellite walls define a plurality of satellite piston bores. Each of the satellite walls is disposed at least partially radially outward of the outer wall. The central piston is disposed in the inner piston annulus and is in sliding engagement with the inner and outer walls of the housing. The satellite pistons are disposed in the satellite piston bores and are in sliding engagement with the satellite walls of the housing. The apply member is axially engaged with each of the satellite pistons and includes an annular plate portion disposed radially outward of the outer cylindrical wall of the housing.