Heat exchange – Structural installation – Related to wall – floor or ceiling structure of a chamber
Patent
1987-11-09
1989-09-19
Davis, Jr., Albert W.
Heat exchange
Structural installation
Related to wall, floor or ceiling structure of a chamber
16510421, 165122, 165160, F28D 1502, F24H 302
Patent
active
048672319
ABSTRACT:
Air to air heat exchanger structure and method including a helical heat exchange coil having a lower portion and an upper portion, refrigerant in the lower portion of the heat exchange coil, a first chamber surrounding the upper portion of the heat exchange coil, a second chamber surrounding the lower portion of the heat exchange coil, structure connecting the bottoms of the coil portions and the tops of the coil portions to each other, and motor and blower structure for passing warm air over the lower portion of the heat exchange coil to boil the refrigerant therein and for drawing cool air over the upper portion of the heat exchange coil to heat the cool air whereby the boiled refrigerant in the upper portion of the heat exchange coil is condensed and flows by gravity back to the lower portion of the heat exchange coil. The air to air heat exchange structure is adapted for utilization in a window opening to ventilate a dwelling space. Switch means is provided for de-energizing the motor, blower structure when less than a desired amount of air is drawn into the dwelling space through the air to air heat exchanger.
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