Heat exchange – Flow passages for two confined fluids – Interdigitated plural first and plural second fluid passages
Patent
1980-10-27
1982-01-05
Richter, Sheldon J.
Heat exchange
Flow passages for two confined fluids
Interdigitated plural first and plural second fluid passages
F28F 310
Patent
active
043089151
ABSTRACT:
A thin sheet heat exchanger is provided which facilitates the transfer of heat between two flowing streams of gas. The heat exchanger is formed of a packing of rectangular heat exchange plates positioned by the method of the present invention separately and parallelly to one another. The packing realizes a crossflow channel pattern for the two gas streams. The heat exchange plates which compose the bulk of the heat exchanger are, by the method of the present invention, folded at two opposite sides. The plates are stacked as prescribed by the method of this invention, and seamweld (or equivalent) sealed along the folded sides of each pair of consecutive plates, thus forming individual gas channels. Also by the method of the present invention gasket sealing surfaces and flange mounting surfaces are realized by the said folds of the said heat exchange plates.
A heat exchanger system can be constituted by a plurality of said heat exchangers assembled, by the method of the invention, to relaize a desired combination of flow patterns.
REFERENCES:
patent: 1727124 (1929-09-01), Lonsdale
patent: 2368814 (1945-02-01), Fagan
patent: 2393713 (1946-01-01), Shoults
patent: 2959401 (1960-11-01), Burton
patent: 2961222 (1960-11-01), Butt
Crossflow Heat Exchanger, Berger et al., IBM Technical Disclosure Bulletin, vol. 13, No. 10, Mar. 1977, p. 3011.
Dinulescu Horia A.
Sanders Nicholas A.
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