Heat exchange – Flow passages for two confined fluids – Interdigitated plural first and plural second fluid passages
Patent
1994-11-22
1998-06-16
Leo, Leonard R.
Heat exchange
Flow passages for two confined fluids
Interdigitated plural first and plural second fluid passages
165916, 165DIG471, F28F 308
Patent
active
057656320
ABSTRACT:
A plate type heat exchanger, for effecting heat transfer between a first fluid and a second fluid, comprises a casing through which the second fluid flows, together with a stack of plates arranged in pairs alternately within the casing and along a stacking axis. The plates of each pair define between them a flow passage for the first fluid. Each plate has two communication apertures formed through it, to enable the first fluid to flow between the successive pairs of plates. Perturbator elements are arranged in these flow passages for perturbing the flow of fluid in the latter. Each plate is substantially square, with its communication apertures being aligned with each other in an alignment direction parallel to two sides of the square. Each perturbator element comprises lines of corrugations which extend in a direction at right angles to the alignment direction. The invention is applicable especially to oil coolers for motor vehicles.
REFERENCES:
patent: 4271901 (1981-06-01), Buchmuller
patent: 4561494 (1985-12-01), Frost
patent: 5014775 (1991-05-01), Watanabe
patent: 5146980 (1992-09-01), Le Gauyer
patent: 5154225 (1992-10-01), Armbruster et al.
patent: 5203832 (1993-04-01), Beatenbough et al.
Leo Leonard R.
Valeo Thermique Moteur
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