Heat exchange coil

Heat exchange – With impeller or conveyor moving exchange material – Mechanical gas pump

Patent

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Details

62272, F28D 710

Patent

active

049811711

ABSTRACT:
A heat exchanger for an air heating and cooling apparatus includes a plurality of exteriorly-finless hollow refrigerant-carrying stainless steel spirally wound coils being of flattened oval shape in cross-section and a plurality of angularly-spaced criss-cross grid-forming structures for supporting the coils in spaced-apart relation and aligned in columns and rows in a stack thereof for permitting passage of external air flow across and between the coils. The spirally wound coils are supported by the grid structures to have an annular-shaped configuration defining an open interior in the coil stack core. The flattened oval cross-sectional shape of each coil defines a pair of arcuate opposite end wall portions and a pair of planar opposite side wall portions extending between and interconnecting the arcuate sidewall portions such that in an axial section taken through the coil stack the arcuate side wall portions of adjacent coils are disposed in spaced apart facing relation and said planar side wall portions of adjacent coils are disposed in spaced apart facing relation and define therebetween channels having generally laminar flow-generating characteristics for permitting flow of the air through the channels at an improved rate.

REFERENCES:
patent: 1853322 (1932-04-01), Rose
patent: 1872785 (1932-08-01), Modine
patent: 2128763 (1938-08-01), Whitlark et al.
patent: 2213463 (1940-09-01), Fink
patent: 2312767 (1943-03-01), Myerhoefer
patent: 2316098 (1943-04-01), Moss et al.
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patent: 2368518 (1945-01-01), Briskin et al.
patent: 2370309 (1945-02-01), Hartwig
patent: 2454654 (1948-11-01), Kaufman
patent: 2519496 (1950-08-01), Norman
patent: 4615176 (1986-10-01), Tippman

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