Refrigeration – Processes – Defrosting or frost inhibiting
Patent
1981-08-12
1983-05-17
Tapolcai, William E.
Refrigeration
Processes
Defrosting or frost inhibiting
62 93, 62100, 62155, 62281, 62288, F25B 2500
Patent
active
043834159
ABSTRACT:
An air cooling and water condensate removal panel has at least two interconnected capillary systems close to a plate having cooling means for removing heat from the plate. The first capillary system exists in a porous, thin outer layer having a very fine capillary structure which presents a cool, wettable surface upon which moisture in the air condenses. The outer layer is maintained cool by the cold plate. The condensate water soaks through the thin porous outer layer and is drawn into the interconnected second capillary system. The second capillary system is substantially coarser than the first system to cause the water to be drawn away more rapidly than the condensate can form upon the outer surface. The water in the coarser capillary system is drawn into a discharge pipe, preferably by employing a pump to maintain a mild vacuum in the pipe. A vacuum reducer or regulator is employed at or near the juncture of the discharge pipe and the air cooling panel to reduce the strength of the vacuum produced in the discharge pipe by the pump. The vacuum strength is reduced to the level where the water seals in the capillary openings of the outer capillary layer will not be broken, thus preventing air from entering the cooling panel. In addition means are employed to prevent ice formations from damaging the structure. These means include thin flexible undulating sheets in the inner and outer capillary systems to absorb the expansive forces of the ice.
REFERENCES:
patent: 2909907 (1959-10-01), Swanson
patent: 3010288 (1961-11-01), Jacobs
patent: 3174297 (1965-03-01), Kuhn et al.
patent: 3383878 (1968-05-01), Booth
patent: 3453838 (1969-07-01), Decker et al.
patent: 3565166 (1971-02-01), Huebscher et al.
patent: 3905203 (1975-09-01), Jacob
Orenbuch Louis
Tapolcai William E.
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