Torque converter with variable pitch stator

Details Torque converter with variable pitch stator Torque converter with variable pitch stator

1978-10-26

1980-01-01

Geoghegan, Edgar W.

Power plants

Pressure fluid source and motor

Coaxial impeller and turbine unit

60362, 60367, F16D 3304

Patent

active

041809777

ABSTRACT:
Torque converter with a stator whose blades are selectively set at open and closed position to tailor converter operation for optimized vehicle performance and fuel economy. Turbine discharge pressure is routed to impeller side of stator control piston to move stator blades to low angle position for improved engine economy during vehicle coast down operation. Low angle stator is also used for economical anti-creep idle and for higher stall speeds and acceleration when needed. For economical cruising and other operation, the stator blades are set at their high angle or open position.

REFERENCES:
patent: 2999400 (1961-09-01), Kelley
patent: 3046745 (1962-07-01), Price, Jr. et al.
patent: 3313109 (1967-04-01), Tuck

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