Gm Global Technolgoy Operations, Inc.

Timothy Anton Cowell

Henry E Beamer

A corrugated cooling fin has a louver pattern in which the louvers in a first, lead set, successively increase in tilt angle, moving in the direction of air flow. Matching louvers in a trailing set successively decrease in tilt angle correspondingly. As a consequence, air flow is turned through the lead set, and turned back through the trailing set, in a successive, incremental fashion. The deflected air flow curve is steeper and higher, and the heat rejection rate for the fin increases enough to compensate for an increase in pressure drop across the fin.

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Luxembourg, Luxembourg

Timothy Anton Cowell