Dual fluid heat exchanger

Details Dual fluid heat exchanger Dual fluid heat exchanger

1978-11-30

1984-03-13

Richter, Sheldon J.

Heat exchange

Flow passages for two confined fluids

Interdigitated plural first and plural second fluid passages

165164, F28D 900, F28F 312

Patent

active

044361475

ABSTRACT:
A compact heat exchanger suitable for use in an automotive exhaust gas recirculation system. It has two interconnected elongated cooling chambers supported within a two piece outer casing. The fluid to be cooled enters the first cooling chamber at an intermediate location, flows towards opposite ends of the chamber then out of the first chamber into the ends of a second chamber through connecting passageways and finally towards an outlet located intermediate the ends of the second chamber. The cooling fluid enters the outer casing at one end flows over and along one side of the first chamber then through an aperture in a flange that divides the casing into two compartments. From this aperture it flows along and over both sides of the second chamber and one side of the first chamber to an outlet located at the same end as the coolant inlet. The component parts are designed to be assembled in a foolproof manner and copper brazed together with relative ease.

REFERENCES:
patent: 2511084 (1950-06-01), Shaw
patent: 3399720 (1968-09-01), Doelz et al.
patent: 3983934 (1976-10-01), Lee

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