Lock-up piston plate for recirculating flow torque converter

Details Lock-up piston plate for recirculating flow torque converter Lock-up piston plate for recirculating flow torque converter

1989-11-14

1991-01-22

Lorence, Richard

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

192107R, 192113B, F16H 4502, F16D 1372

Patent

active

049863975

ABSTRACT:
A piston plate for providing a lock-up of a hydrodynamic torque transmitting unit has a friction lining bonded to a flat area thereon near the outer diameter which is arranged to slip with respect to the front cover of a rotating housing of the torque converter. The friction lining has an annular sealing segment to seal fluid leakage across the lining; and a plurality of grooves is formed from the outside diameter of the lining to an intermediate point on the width to communicate through an axial hole in the piston plate to provide a path for flow of cooling fluid through the lining for removing heat build up therefrom; the source of the cooling fluid also is the fluid source for applying pressure to the plate for providing lock-up in the torque transmitting unit.

REFERENCES:
patent: 2841262 (1958-07-01), Zeidler
patent: 3253684 (1966-05-01), Maurice
patent: 4177885 (1979-12-01), Ross
patent: 4181203 (1980-01-01), Malloy
patent: 4199047 (1980-04-01), Ling

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