Valves and valve actuation – Heat or buoyancy motor actuated
Patent
1997-03-18
2000-08-29
Walton, George L.
Valves and valve actuation
Heat or buoyancy motor actuated
60528, 236 68R, F16K 3104, G05D 2302, G05D 2324
Patent
active
061095885
ABSTRACT:
A two-way variable-section control valve for a refrigeration circuit, having a movable member for choking a refrigerant passage interposed between the inlet and outlet of the valve; the position of the movable member is controlled by a wax actuator having a bulb fitted with an electric resistor supplied by a control circuit; and the bulb is immersed in and cooled rapidly by the refrigerant when the heat supplied by the resistor is reduced, thus ensuring rapid response.
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Kang Gregory B.
Microtecnica S.p.A.
Nath Gary M.
Walton George L.
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