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US 6,925,711 B2Granted
Micro-textured heat transfer surfaces
AssigneeAlcoa Inc.
InventorsRaymond J. Kilmer, John B. Eye, Stephen F. Baumann, Michael P. Danz
Life of this patent
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Abstract
A wrought aluminum sheet product having a textured surface for improved heat transfer properties. A plurality of textured features having dimensions of about 1-50 microns is roll textured onto one or both sides of the sheet. The aluminum sheet may be used as the fins or tubing of a heat exchanger.
Claims7
A method of making a heat exchanger component comprising:
- providing a mill finished brazing sheet having on at least one face thereof micro-textured features of from about 1 to about 50 microns in size;
- and
- forming said textured brazing sheet into a heat exchanger component, wherein at least one heat transfer surface of the heat exchanger component includes the textured features.
Dependencies are inferred from the claim text.