Automatic temperature and humidity regulation – Mixing fluid of dissimilar temperature – Having oscillating or reciprocating valve
Patent
1979-12-12
1981-02-10
Tapolcai, Jr., William E.
Automatic temperature and humidity regulation
Mixing fluid of dissimilar temperature
Having oscillating or reciprocating valve
137337, 237 8C, G05D 2313
Patent
active
042496950
ABSTRACT:
A thermally actuated modulating valve preferably for fail safe energy conservation systems includes a valve body having, a main inlet for cold source water, an outlet for heated water, and a fluid transfer chamber connected for delivering heated water to the outlet. A proportioning slide valve assembly formed in said valve body connected to the main inlet to receive cold water therefrom includes, spaced outlets, a slide valve to vary the volume of cold water delivered respectively through the spaced outlets, one of said spaced outlets for delivering varying volumes of cold water to be heated. The valve body has a mixing chamber connected to one of the spaced outlets of the proportioning slide valve assembly to receive cold water therefrom, an inlet for the heated water from the other of said spaced outlets, an outlet for delivering the mixture of cold and heated water to the fluid transfer chamber. A thermally actuated power element mounted in the transfer chamber moves responsive to variations in the temperature of the mixture of cold and heated water passing through said transfer chamber, said thermally actuated power element operatively connected to said slide valve for moving the same in accordance with such variations in the temperature of the water mixture passing through said transfer chamber, a calibrating and setting assembly for setting the temperature of the water mixture to be delivered from the outlet for said valve body, and a member in the outlet passage between the mixing chamber and the transfer chamber for generating a negative pressure to provide aspiration of fluid into the water delivered from the mixing chamber to the transfer chamber.
REFERENCES:
patent: 3202321 (1965-08-01), Homeyer
patent: 3388861 (1968-06-01), Harding
patent: 3642176 (1972-02-01), Dreibelbis et al.
patent: 3765604 (1973-10-01), Trubert et al.
patent: 3792812 (1974-02-01), Knapp
patent: 3827016 (1974-07-01), Knapp
patent: 3836050 (1974-09-01), Dreibelbis
patent: 3891124 (1975-06-01), Dreibelbis
patent: 3905518 (1975-09-01), Dreibelbis et al.
patent: 3955759 (1976-05-01), Knapp
Bobis Daniel H.
Emerson Electric Co. (H & H Prod. Div)
Tapolcai, Jr. William E.
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