Heat exchanger
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United States of America Patent
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-
Jan 24, 1995
Grant Date -
N/A
app pub date -
Aug 4, 1993
filing date -
Feb 27, 1991
priority date (Note) -
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status (Latency Note)
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Abstract
A plate-fin type of heat exchanger (100) facilitates exchange of heat between two or more process streams (101, 102). It comprises a matrix (M) of two different types of heat exchange plate elements (P1, P2) inter-digitated with each other. Adjacent plate elements are metallurgically bonded together for good thermal contact by an activated diffusion bonding process. The plate elements (P1, P2) are high-integrity diffusion bonded sandwich constructions comprising two outer sheets (201, 203 - FIG. 4 and a superplastically expanded core sheet structure (202) between the two outer sheets. The sandwich construction provides flow passages (P) for the process streams. Adjacent plate elements (P1, P2) carry different process streams (101, 102).
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