Friction element engagement pressure and timing control arrangem

Details Friction element engagement pressure and timing control arrangem Friction element engagement pressure and timing control arrangem

1988-10-31

1990-07-03

Braun, Leslie A.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74868, B60K 4110

Patent

active

049381032

ABSTRACT:
An accumulator which is pressurized during the engagement of the band brake, is arranged with a one-way valve so that the discharge therefrom, which accompanies the downshifting of an associated shift valve, temporarily maintains a pressure which is supplied to an overrunning clutch control valve and which holds the spool valve elements therein in a position wherein the overrunning clutch is drained.

REFERENCES:
patent: 3710638 (1973-01-01), Sakai
patent: 4200008 (1980-04-01), Dach
patent: 4291596 (1981-09-01), Sakakibara
patent: 4677879 (1987-07-01), Furusawa et al.
patent: 4776240 (1988-10-01), Miki

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