Valves and valve actuation – Heat or buoyancy motor actuated
Patent
1981-10-05
1984-11-27
Rosenthal, A.
Valves and valve actuation
Heat or buoyancy motor actuated
236 68B, 60529, F16K 3104
Patent
active
044847254
ABSTRACT:
A bimetal driven control valve comprises: a main body having an inflow channel, an outflow channel, and an orifice which connects the inflow channel and the outflow channel; a first bimetal which constitutes part of a tubular body, an outer portion of the bimetal being fixed to the main body; a second bimetal which constitutes part of the tubular body and whose outer circumferential surface is formed by the same metal used for the inner circumferential surface of the first bimetal, and whose inner circumferential surface is formed by the same metal used for the outer circumferential surface of the first bimetal, the inner circumferential surface of the second bimetal being opposed to the inner circumferential surface of the first bimetal: hinges for connecting respective ends of the first and second bimetals to form the tubular body; a value member which is mounted in the main body and which is connected to an outer portion of the second bimetal for moving the valve member between a first position at which the orifice is closed by its other end and a second position at which the orifice is released to be open in correspondence with the radial movement of the second bimetal; and heating wire for heating the first bimetal.
REFERENCES:
patent: 1259371 (1918-03-01), Davis
patent: 3107532 (1963-10-01), Lingnau
patent: 3397552 (1968-08-01), Harnish
patent: 3478534 (1969-11-01), Matthies
patent: 3967781 (1976-07-01), Kunz
Ashrae Journal, Thermal-Electric Expansion Valve, Jan. 1968.
Catalog of Singer Co., Ltd. Pub., Jul. 1980.
Fuji Koki Manufacturing Co., Ltd.
Rosenthal A.
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