Patent ID: 6708808
Filing Date: 2004-03-23
Classification: F16D

Abstract:
A torque-transmitting mechanism comprising:a first housing having drivingly connected therewith a plurality of first friction members; a second housing having drivingly connected therewith a plurality of second friction members, said first and second friction members being alternately spaced to form a friction path; an apply piston having an apply head and a spring body having a portion secured in said apply head, said apply head being slidably disposed in one of said housings and said spring body being limited in axial movement at a radial inner rim of one said housing through a locking ring; an apply chamber formed by one of said housings and said apply piston, including both said apply head and said spring body; means for applying fluid pressure to said apply chamber to enforce axial movement of said apply head toward said friction path to cause engagement of said first and second friction members thereby completing a torque-transmitting path between said first and second housings; and said spring body being effective to retract said apply head from said friction path when the pressure in said apply chamber is reduced below a predetermined value.