Dual-density header fin for unit-cell plate-fin heat exchanger
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United States of America Patent
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Mar 22, 2005
Grant Date -
Dec 12, 2002
app pub date -
Jul 30, 2002
filing date -
Feb 1, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A heat exchange cell for a recuperator includes top and bottom plates sandwiching a matrix finned member and a pair of header finned members. The top and bottom plates each include a pair of manifold openings, and the header finned members each include a curved free edge following the curvature of an associated manifold opening. The header finned member includes a high fin density portion along the free edge and a low fin density portion communicating with the high fin density portion. The dual fin density header finned member thus provides increased structural strength along the free edge and provides a low pressure drop through the low fin density portion.
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