Power transmission with torque converter lockup clutch

Details Power transmission with torque converter lockup clutch Power transmission with torque converter lockup clutch

1976-07-21

1978-01-31

Scott, Samuel

192 clutches and power-stop control

Vortex-flow drive and clutch

Including drive-lockup clutch

74732, 192 331, F16D 3300, F16D 3500, F16D 3700

Patent

active

040711250

ABSTRACT:
A power transmission mechanism includes a hydrokinetic torque converter and a friction clutch disposed to form a positive mechanical drive from the input shaft to the output shaft of the torque converter. The friction clutch includes a piston disposed in the housing and forming opposed fluid chambers one of which includes the converter impeller and turbine disposed therein. An orifice in the piston conducts fluid from one chamber to the other and clutch engagement is controlled by regulating the fluid outflow from the other chamber. Clutch lockup or engagement may be controlled to be responsive to the pressure of fluid flowing into the converter or the difference in the pressure of the fluid flowing in and out of the converter.

REFERENCES:
patent: 2965202 (1960-12-01), Christenson
patent: 3185273 (1965-05-01), Smirl
patent: 3213983 (1965-10-01), Smirl et al.
patent: 3239037 (1966-03-01), Croswhite et al.
patent: 3516524 (1970-06-01), Kelty et al.
patent: 3977502 (1976-08-01), Chana

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