Air cooled heat exchanger with enhanced heat transfer...

Details Air cooled heat exchanger with enhanced heat transfer... Air cooled heat exchanger with enhanced heat transfer...

2006-07-26

2010-06-29

Duong, Tho v (Department: 3744)

Heat exchange

Tubular structure

With discrete heat transfer means

C165S109100

Reexamination Certificate

active

07743821

ABSTRACT:
The heat exchanger includes a tube having axially spaced fins or a continuously spirally wound fin about the tube. One or more of the fins are dimpled, mechanically or molded, to provide concavities and projections on opposite sides of the fins or alternating concavities and projections on opposite side of the fins. The dimples improve the heat transfer between the fluid flowing through the tubes and the air circulating about the tubes and through the fins. The dimples create vortices and turbulent flow between the fins and effectively increase the heat transfer rate.

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Bunker et al., entitled, “Heat Exchanger Tube With Enhanced Heat Transfer Co-Efficient and Related Method” U.S. Appl. No. 11/541,682, filed Oct. 3, 2006, pending.
Bunker et al., “Heat Exchanger Tube with Enhanced Heat Transfer Co-Efficient and Related Method,” U.S. Appl. No. 11/541,682, filed Oct. 3, 2006.
Internet article: “Hamon Thermal Transfer”(undated).

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