Uni-directional fin-and-tube heat exchanger
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United States of America Patent
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Dec 1, 1987
Grant Date -
N/A
app pub date -
Sep 8, 1986
filing date -
Sep 8, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A fin-and-tube heat exchanger designed for one-way airflow, in which louvers, formed from the fin stock, progressively increase in length from the fin leading edge to its trailing edge. Their end walls channel air into stagnant air spaces behind the tubes. The tube collars may be offset somewhat toward the fin trailing edge, further reducing the stagnant air zones. In those bent heat exchangers in which air flows in from outside the curve, offsetting the collars also lessens the angular convergence of fin trailing edges inside the curve and presents less resistance to airflow.
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