Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor
Patent
1989-05-19
1990-06-26
Michalsky, Gerald A.
Valves and valve actuation
Fluid actuated or retarded
Pilot or servo type motor
251 3005, 251 38, F16K 31385, F16K 3140
Patent
active
049365410
ABSTRACT:
A valve apparatus has a valve body with an inlet, an outlet and a main valve seat disposed therebetween. A complementary main valve member can be moved by an actuating piston/diaphragm between open and closed positions, or located at an intermediate position therebetween. The actuating piston/diaphragm has one side exposed to an actuating chamber which receives fluid from the inlet through a metering orifice on one side, and an opposite side exposed to outlet pressure. A servo valve assembly controls flow from, and pressure within, the actuating chamber and controls movement of the main valve member. The servo valve assembly can be positioned by a relatively low force actuator in any position between extremes thereof, and acts as a master for the main valve member which follows it as a slave between open and closed positions, and any intermediate positions therebetween. The actuator is protected from high fluid forces imposed on the main valve member.
REFERENCES:
patent: 1077503 (1913-11-01), Anderson
patent: 2020833 (1935-11-01), Hansen
patent: 3307823 (1967-03-01), Greer
patent: 3994318 (1976-11-01), Ishigaki
patent: 4044787 (1977-08-01), Sutherland
patent: 4266572 (1981-05-01), Schuttenberg et al.
patent: 4268006 (1981-05-01), Kunz et al.
patent: 4295631 (1981-10-01), Allen
patent: 4477051 (1984-10-01), Ben-Yehuda
patent: 4553732 (1985-11-01), Brundage et al.
patent: 4793589 (1988-12-01), Eldredge et al.
patent: 4823750 (1989-04-01), Niida et al.
Kalaman Eugene P.
Oksanen Kari J.
Michalsky Gerald A.
Singer Valve (1985) Inc.
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