Heat exchange – Movable heating or cooling surface – Rotary drum
Patent
1979-03-28
1982-01-05
Davis, Albert W.
Heat exchange
Movable heating or cooling surface
Rotary drum
165 40, 16510422, 126422, 126433, 126419, 126435, 236 92B, F28D 1500, G05D 2300
Patent
active
043089127
ABSTRACT:
A heat transfer system is provided having a fluid evaporator and a fluid condenser interconnected by fluid conducting conduit and including a volatile fluid as the heat transferring medium. The evaporator is incorporated in a solar panel and the condenser is disposed in heat transferring relationship to a water tank. A temperature control device including on a liquid accumulator tank and a pressure responsive valve is interconnected in the system and is operable to permit or prevent return of condensed fluid to the evaporator. One embodiment has the condenser disposed a distance vertically above the evaporator to provide a gravity return of liquid. A second embodiment of the system has the condenser and water tank disposed a distance vertically below the evaporator and the system additionally includes a device for intermittently returning liquid from the condenser to the evaporator at periodic intervals. The device for returning liquid includes a liquid collector tank positioned to receive liquid returned by gravity from the condenser and having a float actuated valve mechanism to alternatively prevent or permit fluid flow to the condenser whereby vaporization of fluid by the evaporator will develop gas pressure to return liquid from the collector tank to the evaporator through an intermediate liquid holding tank. A check valve is connected between the accumulator tank and holding tank to isolate the tanks during liquid return operation.
REFERENCES:
patent: 1507985 (1924-09-01), Brown
patent: 2196778 (1940-04-01), Dodge
patent: 2210511 (1940-08-01), Taylor
patent: 2226797 (1940-12-01), Andersson
patent: 2380029 (1945-07-01), Davidson
patent: 3945433 (1976-03-01), Koula
patent: 4061131 (1977-12-01), Bohanon
patent: 4120289 (1978-10-01), Bottum
Davis Albert W.
Stebens Robert E.
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