Dual-density header fin for unit-cell plate-fin heat exchanger

Details Dual-density header fin for unit-cell plate-fin heat exchanger Dual-density header fin for unit-cell plate-fin heat exchanger

2005-03-22

2005-03-22

Leo, Leonard R. (Department: 3753)

Heat exchange

Expansion and contraction relieving or absorbing means

Relieving or absorbing means supports temperature modifier...

C165S146000, C165S153000, C165S166000, C165S167000, C165S170000

Reexamination Certificate

active

06868897

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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patent: 6032730 (2000-03-01), Akita et al.
patent: 6460613 (2002-10-01), Nash et al.

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