Refrigeration – Material cooling means including gas-liquid contactor – Gas recirculated relative to enclosure
Patent
1996-06-21
1998-02-10
Doerrler, William
Refrigeration
Material cooling means including gas-liquid contactor
Gas recirculated relative to enclosure
62314, 62316, F25D 1704, F28D 500
Patent
active
057156980
ABSTRACT:
An evaporative air cooler (10) employs a design in which admitted air flows over and along the surface of a wicking material (14) rather than through the wicking material (14) and, in the process, achieves a greater relative cooling ability thereby. The evaporative air cooler (10) has the primary components of a cooling chamber (12), the wicking material (14), a fan assembly (16), and, in the preferred embodiment, a feedback duct (18). The cooling chamber (12) includes a container portion (20) having an air outlet (40) in one end wall (36) thereof, and a cover portion (22) having an air inlet (44). The wicking material (14), which is towel-like in form, is draped upon the interior surfaces (56, 60, 62) of the container portion (20), with an opening (64) in the wicking material (14) cut so as to correspond to the location of the air outlet (40) and to allow an unimpeded passage of air therethrough. The lower portion of the wicking material (14) is immersed in water (66) reservoired in the bottom (32) of the container portion (20). Operation of the fan assembly (16) causes ambient air (68) to be drawn through the air inlet (44) and into the cooling chamber interior (28), the air (68) being cooled by equilibrating evaporative processes at the surfaces of the wicking material (14). The cooled air (72) is expelled by the fan assembly (16) through the air outlet (40) whereupon a small percentage of the cooled air (72) is recycled back to the air inlet (44) by the feedback duct (18) to further enhance the cooling ability of the evaporative air cooler (10).
REFERENCES:
patent: 3043573 (1962-07-01), Chandler
patent: 3362186 (1968-01-01), Patterson
patent: 3705479 (1972-12-01), McPherson
patent: 4649000 (1987-03-01), Biesemeyer
patent: 4798060 (1989-01-01), Long et al.
patent: 4953831 (1990-09-01), Albrecht
patent: 5168722 (1992-12-01), Brock
Baze Mark E.
Doerrler William
Hughes Michael J.
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