Method and apparatus for applying and releasing a clutch

Details Method and apparatus for applying and releasing a clutch Method and apparatus for applying and releasing a clutch

2006-05-30

2006-05-30

Rodriguez, Saul (Department: 3681)

192 clutches and power-stop control

Clutches

Operators

C192S10900B

Reexamination Certificate

active

07051856

ABSTRACT:
An apparatus for applying and releasing a clutch piston in a clutch cylinder against a return spring includes a fill oil chamber having first and second portions separated by a fill piston. The first portion is in fluid communication with the clutch cylinder through a first passage, and the second portion is in fluid communication with a second passage. A third passage is in fluid communication with the first passage. A fill control valve is operative to alternately communicate the second passage to a transmission line pressure passage or an exhaust passage. The fill control valve is further operative to alternately communicate the third passage to a controllable source of pressurized oil having a signal pressure, or to close the third passage.

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