Single stage hydraulic valve

Details Single stage hydraulic valve Single stage hydraulic valve

1980-02-11

1982-04-20

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

251 65, 251282, F15B 13044

Patent

active

043254128

ABSTRACT:
This invention is an electrically controlled single stage hydraulic valve in which the valve spool is moved along the valve sleeve by a small force motor. The valve has spool to sleeve centering devices on the periphery of the spool which reduce friction between the spool and the sleeve by automatically centering the spool in the center of the valve's sleeve. The aforementioned valve also employs (1) stabilizing devices that prevent the valves from responding to acceleration of the vehicle in which the valve is traveling and (2) anti flow force device to reduce necessary actuating force to negligible value.

REFERENCES:
patent: 3012575 (1961-12-01), Woody et al.
patent: 3067979 (1962-12-01), Cox
patent: 3260501 (1966-07-01), Raymond
patent: 3370613 (1968-02-01), Weaver
patent: 3581772 (1971-06-01), Wills
patent: 3912222 (1975-10-01), Hayner
patent: 4050476 (1977-09-01), Hayner et al.

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