Patent ID: 8474588
Filing Date: 2013-07-02
Classification: F16D

Abstract:
1. A selectively engagable dry friction clutch assembly for connecting a transmission with a flywheel of an engine comprising: a cover having a main body axially spaced from said flywheel and being torsionally connected thereto; an axially movable pressure plate torsionally connected with said cover; a friction disc for having torsional connection with an input shaft of a transmission, said friction disc being axially positioned between said flywheel and said pressure plate; a release assembly including a spring retainer biased by a coil spring for urging said pressure plate towards said flywheel, said coil spring being captured between said spring retainer and with respect to said cover; and a plurality of levers, each said lever having a radially inner first sliding pivot engagement with said spring retainer, an intermediate second sliding pivot engagement with said pressure plate, and a third pivot engagement with respect to said cover; and wherein at least one of said first and second sliding pivot engagements of said levers is on sliding surfaces provided by a polymeric member mounted on said respective spring retainer or on said pressure plate respectively.