Rotary drive spool valve

Details Rotary drive spool valve Rotary drive spool valve

1987-04-13

1988-10-25

Look, Edward K.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91378, 91380, 13762569, F15B 910

Patent

active

047795123

ABSTRACT:
A rotary drive fourway spool valve with rotary feedback includes a spool and a seat sleeve both rotatable within and the spool axially slidable in the valve body and connected by a straight screw thrust. Belleville springs center the sleeve azimuthically relative to the spool.

REFERENCES:
patent: 2960071 (1960-11-01), Rosebrook
patent: 3310284 (1967-03-01), Inaba et al.
patent: 3530764 (1970-09-01), Tomita
patent: 3721266 (1973-03-01), Ikebe et al.

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