Torque converter clutch having a viscous drive portion

Details Torque converter clutch having a viscous drive portion Torque converter clutch having a viscous drive portion

1980-07-24

1982-03-02

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Plural clutch-assemblage

192 329, 192 58B, F16D 4706, F16D 3300, F16D 3500

Patent

active

043175104

ABSTRACT:
A selectively engageable friction clutch is disposed in parallel drive relation with a torque converter. The friction clutch has a viscous drive portion which, during clutch engagement, permits relative rotation between the clutch input and output members so that the engine torsional vibrations are effectively dampened. The viscous drive portion has a plurality of hollow cylindrical hubs disposed in interdigital relation on respective input and output members. The cylindrical hubs on one of the input or output members has helical grooves formed on the cylindrical surfaces thereof so that the viscous fluid, preferably a silicone fluid, is pressurized between adjacent cylindrical surfaces to increase the efficiency of the viscous drive portion.

REFERENCES:
patent: 2166961 (1939-07-01), Marsh
patent: 3252352 (1966-05-01), General et al.
patent: 3275108 (1966-09-01), General et al.
patent: 3693478 (1972-09-01), Malloy
patent: 3910391 (1975-10-01), Detty

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