Pressure operated shuttle valve

Details Pressure operated shuttle valve Pressure operated shuttle valve

1983-05-11

1986-01-28

Richter, Sheldon J.

Heat exchange

Movable heating or cooling surface

Rotary drum

13762564, 165 40, 165103, 236 1221, F28F 2702

Patent

active

045665303

ABSTRACT:
A valve assembly in which a longitudinally shiftable shuttle or spool valve is positioned by varying the fluid pressure in a pressure chamber at one end thereof. Solenoid valves open and close in a pulsed response to a changing fluid condition, the flow of which fluid is regulated by the spool valve. The solenoid valves control the admission of a pressure fluid to the pressure chamber and its exhaust therefrom.

REFERENCES:
patent: 2449766 (1948-09-01), Brown
patent: 2808210 (1957-10-01), Frey
patent: 2975308 (1961-03-01), Kilbourne et al.
patent: 3036777 (1962-05-01), Budde
patent: 3087675 (1963-04-01), Honegger
patent: 3556154 (1971-01-01), Kramer
patent: 3561483 (1971-02-01), Taplin
patent: 3964518 (1976-06-01), Hesse et al.
patent: 4066102 (1978-01-01), Tandrup
patent: 4291750 (1981-09-01), Clyne et al.
patent: 4342334 (1982-08-01), Stangroom

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