Heat exchange – Flow passages for two confined fluids – Interdigitated plural first and plural second fluid passages
Patent
1977-02-07
1979-12-04
Davis, Jr., Albert W.
Heat exchange
Flow passages for two confined fluids
Interdigitated plural first and plural second fluid passages
F28F 304
Patent
active
041767136
ABSTRACT:
At least three heat exchange plates which are press-formed from sheet metal are arranged in a row and have a fluid-guiding body each, which is formed with a plurality of corrugations which have ridges that define two parallel ridge planes on opposite sides of said plate. Spacing means which are rigid with each of said plates and flush with one of said ridge planes thereof extend between said ridges only in part of the length of said corrugations of said plate and contact the ridges of an adjacent plate. Said plates comprising first and second types of plates. Said corrugations of said plates of said first and second types, respectively, extend at equal and opposite, oblique angles to a center plane of said body which is normal to said ridge planes and have the same cross-section so that the center spacing of said plates equals the height of said corrugations. At least two adjacent ones of said plates have adjacent corrugations which are parallel to each other. At least two adjacent ones of said plates have adjacent corrugations which cross each other.
REFERENCES:
patent: 3151675 (1964-10-01), Lysholm
patent: 3661203 (1972-05-01), Mesher
patent: 3690373 (1972-09-01), Wright
patent: 3731737 (1973-08-01), Jenssen
patent: 3783090 (1974-01-01), Andersson et al.
Alfa-Flex, ALFA-LAVAL, Sweden, 12/1975, No. PC60515E, 1972.
Davis Jr. Albert W.
Flocks Karl W.
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