Patent ID: 6953400

Claim:
A driven pulley system for use in a torque converter of a vehicle, the driven pulley system comprising a motion-transmitting fixed unit arranged to be fixed to a rotatable output shaft of the vehicle for rotation therewith to transmit motion between the output shaft and a belt included in the torque converter, the fixed unit including a fixed flange and a cam, and a belt-tensioning movable unit arranged for movement relative to the fixed unit, the movable unit including a movable flange and a cam follower, the fixed flange and the movable flange being arranged to receive the belt therebetween for engagement therewith, the cam follower being arranged to follow the cam to cause rotation of the movable flange relative to the fixed flange in a first direction to tension the belt upon axial movement of the movable flange away from the fixed flange due to radially inward movement of the belt, the movable flange including a rotation limiter arranged to engage the cam surface to limit rotation of the cam relative to the cam follower in a second direction opposite to the first direction.