Fluid power transmission system with lock-up clutch

192 clutches and power-stop control – Vortex-flow drive and clutch – Including drive-lockup clutch

Patent

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Details

1921061, 1921062, 464 24, 464 67, F16H 4502

Patent

active

052304094

ABSTRACT:
A torque converter wherein a fluid flow established by a pump impeller is fed to rotate a turbine runner, wherein a lock-up clutch to be engaged with and released from a first member integrated with the pump impeller is connected to an annular drive member, and wherein an annular driven member arranged to face the drive member and made rotatable relative to the drive member is connected to a second member integrated with the turbine runner, whereby torque is transmitted between the drive member and the driven member. The torque converter comprises: a plurality of first projections arranged at a circumferentially constant clearance on one of the surfaces of the drive member and the driven member facing each other and having a predetermined circumferential length; a plurality of second projections arranged at a circumferentially constant clearance on the other of the surfaces of the drive member and the driven member facing each other and having a predetermined circumferential length for meshing with the first projections at a radially slight clearance; damper springs arranged between the first projections or the second projections and adapted to be compressed by the first projections and the second projections; and a viscous fluid confined between the first projections and the second projections.

REFERENCES:
patent: 4423803 (1984-01-01), Malloy
patent: 4466518 (1984-08-01), Mueller
patent: 4473145 (1984-09-01), Bopp
patent: 4493406 (1985-01-01), Bopp
patent: 4540076 (1985-09-01), Bopp
patent: 4557357 (1985-12-01), Tinholt
patent: 4564094 (1986-01-01), Storz
patent: 4739866 (1988-04-01), Reik et al.
patent: 5044477 (1991-09-01), Bojas et al.
patent: 5072818 (1991-12-01), Kuhne
patent: 5097722 (1992-03-01), Fukushima
patent: 5119693 (1992-06-01), Naudin et al.

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