Lockup unit for torque converter having a friction element

Details Lockup unit for torque converter having a friction element Lockup unit for torque converter having a friction element

1994-09-27

1996-01-09

Pitts, Andrea L.

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

192207, F16H 4502, F16D 314

Patent

active

054821517

ABSTRACT:
A lockup unit for a torque converter is provided with a front cover coupled to an input member and a turbine coupled to an output member. The lockup unit includes: a disc-like piston disposed movably between the front cover and the turbine and pressingly contactable against the front cover; a flexible coupling mechanism for coupling the disc-like piston and the turbine in a circumferential direction; and a frictional resistance generating mechanism including a stationary member fixed to the disc-like piston and a flexible member which is brought into pressing contact with the stationary member so as to be rotatable together with the turbine, for generating a frictional resistance when the piston and the turbine are rotated relative to each other, to thereby reduce the number of the necessary mechanical components.

REFERENCES:
patent: 4413711 (1983-11-01), Lamarche
patent: 4437551 (1984-03-01), Gimmler et al.
patent: 4867290 (1989-09-01), Macdonald et al.
patent: 4919241 (1990-04-01), Koshimo
patent: 4969544 (1990-11-01), Fujimoto
patent: 4982821 (1991-01-01), Tanaka
patent: 5070974 (1991-12-01), Kirkwood
patent: 5310033 (1994-05-01), Shibayama
patent: 5377796 (1995-01-01), Friedmann et al.

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