Multiple fluid flow path bodies

Details Multiple fluid flow path bodies Multiple fluid flow path bodies

1977-03-23

1978-11-21

Myhre, Charles J.

Heat exchange

Flow passages for two confined fluids

Interdigitated plural first and plural second fluid passages

165 10, F28D 1700

Patent

active

041261780

ABSTRACT:
A heat exchange element, particularly suitable for use as a recuperator for external combustion engines or other multiple fluid flow path body, may be produced as a monolithic, ceramic, honeycombed body having a plurality of flow paths therethrough for two or three fluids wherein multiple flow paths of separate fluids are separated by walls which may be less than 10 mils thick.
The honeycombed ceramic body is provided with a plurality of open-ended cells extending from one face end to another face end and arranged in vertical columns of cells separated by vertical fluid barrier wall surfaces. Selected columns of open-ended cells are closed on both face ends of the body and entrance to and exit from the selected cells is provided by removing portions of cell walls near face ends of the body between fluid barrier wall surfaces. A first fluid may enter the selected columns of cells through inlet openings on the top and bottom of the body at one end thereof and exit from the other end of the body through outlet openings also on the top and bottom thereof, thereby following I-shaped fluid flow paths. A second fluid may pass through unselected columns of cells. Three fluids may be accommodated by dividing the honeycombed body into independent upper and lower halves separated by an intermediate fluid barrier, thereby forming a combination of upper U-shaped and lower inverted U-shaped fluid flow paths in the selected columns of cells.
Fluids are applied to the heat exchanger or other body and removed therefrom through appropriate use of sealable header or flue assemblies communicating with all entrance or exit openings.

REFERENCES:
patent: 2983485 (1961-05-01), Peterson
patent: 3022982 (1962-02-01), Demalander
patent: 3112184 (1963-11-01), Hollenbach
patent: 3266568 (1966-08-01), Butt et al.
patent: 3322189 (1967-05-01), Topouzian

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