B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
B23P 15/26 (2006.01) B21C 37/15 (2006.01) F28F 1/40 (2006.01)
Patent
CA 2736846
Flattened tubes for use in heat exchangers and other systems and associated methods of manufacture and use are described herein. In one embodiment, for example, a method of manufacturing a flattened tube for use in a heat exchanger includes forming a plurality of generally parallel ridges on an internal surface of a generally round tube. The tube can be radially compressed into a generally oblong cross-sectional shape. Individual ridges can be spot welded together at contact points to form a plurality of fluid channels. The ridges can be formed in a generally helical path on the internal surface of the tube. Selected ridges can extend further from the internal surface than other ridges.
Arment Bradley
Arndt Barton L.
Nixon Forrest
Bull Housser & Tupper Llp
Cerro Flow Products Llc
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