Pressure balanced pistons in an automatic transmission

Details Pressure balanced pistons in an automatic transmission Pressure balanced pistons in an automatic transmission

1990-03-01

1990-10-23

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Operators

F16D 2512

Patent

active

049645064

ABSTRACT:
Pressure balanced pistons in a four-speed automatic transmission which prevent the centrifugal force acting on the rotating fluid in the clutch cavity from causing the piston to remain in the clutch applied position even though the fluid apply line is vented.

REFERENCES:
patent: 2876743 (1959-03-01), Maki
patent: 3253688 (1966-05-01), Livezey
patent: 3438472 (1969-04-01), Hillegrass et al.
patent: 4304155 (1981-12-01), Want et al.
patent: 4494942 (1985-01-01), Hirand et al.
patent: 4706789 (1987-11-01), McColl et al.

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