Buoyant element check valve for a thermosiphon energy system

Details Buoyant element check valve for a thermosiphon energy system Buoyant element check valve for a thermosiphon energy system

1981-05-26

1982-08-31

Walton, George L.

Fluid handling

Liquid level responsive or maintaining systems

By float controlled valve

126418, 126434, 137468, 13753311, 137564, 165 32, 165 96, 236 93R, F16K 3122, G05D 2300

Patent

active

043467318

ABSTRACT:
A check valve for a thermosiphoning solar energy system having a buoyant movably disposed element situated between primary and auxiliary valve seats. Under normal operating conditions flow enters the top of the valve and passes downwardly through the primary seat thereby dislodging the movable element from its seated position. The element, however, is designed to have a density greater than the fluid at high temperatures, which causes the element to lodge in the auxiliary seat to prevent the further flow of the thermosiphoning fluid.

REFERENCES:
patent: 2842155 (1958-07-01), Peters
patent: 3929123 (1975-12-01), Hasty
patent: 3969605 (1976-07-01), Danell
patent: 4050508 (1977-09-01), Buckley
patent: 4137964 (1979-02-01), Buckley
patent: 4245617 (1981-01-01), Buckley
patent: 4286573 (1981-09-01), Nickel

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