Patent ID: 6422966
Filing Date: 2002-07-23
Classification: F16H

Abstract:
A powertrain including a continuously variable transmission comprising:an engine; a transmission input shaft continuously connected with said engine; a transmission output shaft; a continuously variable unit having spaced input members, adjacent output members intermediate said input members and cooperating therewith to form a pair of tori, a plurality of traction rollers in each tori frictionally engaging respective ones of said input and output members, said input members being continuously drivingly connected with said transmission input shaft; a planetary gear arrangement having a planet carrier assembly member continuously connected with said transmission input shaft and said input members, a sun gear member operatively connected with said planet carrier assembly member and continuously connected with said output members, a first ring gear member operatively connected with said planet carrier assembly member, and a second ring gear member operatively connected with said planet carrier assembly member; a selectively operable mechanical clutch mechanism individually connecting said ring gear members with a friction clutch input member; and a selectively engageable fluid operated friction clutch mechanism connecting said friction clutch input member with said transmission output shaft.