Fluid handling – Systems – Multi-way valve unit
Patent
1976-04-13
1978-02-21
Nilson, Robert G.
Fluid handling
Systems
Multi-way valve unit
91379, 251 30, F16K 31365, F16K 3140
Patent
active
040746992
ABSTRACT:
A fluid-assisted electromagnetic valve comprises an element movable in a working chamber as a function of a fluid pressure differential applied by an electromagnetic control. The movable element has inlet and exhaust nozzles in the working chamber which are selectively obturated by respective spring-biased plungers mounted on an extension of a mobile core of the electromagnetic control, according to the direction of movement of the core, to provide the pressure differential. Said extension comes to bear directly against the respective nozzle to ensure movement of the element even when the pressure differential is insufficient.
REFERENCES:
patent: 2434538 (1948-01-01), Baston
patent: 2898936 (1959-08-01), Collins
patent: 3458769 (1969-07-01), Stampfli
patent: 3677298 (1972-07-01), Greenwood
Groff, Jr. Emory L.
Lucifer S.A.
Nilson Robert G.
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