Fluid handling – Systems – With selective motion for plural valve actuator
Patent
1984-02-14
1986-06-17
Michalsky, Gerald A.
Fluid handling
Systems
With selective motion for plural valve actuator
137596, 13762511, F15B 1306, F15B 2000
Patent
active
045950369
ABSTRACT:
A combined spool and rotary disc valve has a quick emergency exhausting means. In normal operation, the spool valve allows pressurized fluid to flow between an inlet and a choice of one or more outlets. When quick emergency exhausting of all of the outlets is desired, the spool valve is disposed such that all the outlets communicate through an exhaust slot in the rotary disc valve, through an interior passageway of the cylinder, further through a second part of the spool valve into a different interior passageway which leads to an annular channel which is exhausted by one or more exhaust openings through the barrel housing. The normal flow of pressurized fluid can also be reversed such that, with blockage of all exhaust openings in the barrel housing, the rotary control valve becomes a mixing valve.
REFERENCES:
patent: 1758552 (1930-05-01), Allen et al.
patent: 2700985 (1955-02-01), Gleasman
patent: 3469606 (1969-09-01), Getman
patent: 3520327 (1970-07-01), Claydon et al.
patent: 4153076 (1979-05-01), McNeil et al.
patent: 4211258 (1980-07-01), Switall
patent: 4380251 (1983-04-01), Weaver
Michalsky Gerald A.
Vitec Controls, Inc.
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