Patent ID: 8307669
Filing Date: 2012-11-13
Classification: F28D,F28F

Abstract:
1. A heat exchanger for cooling a flow of air passing therethrough comprising: first and second spaced apart and generally vertical longitudinally extending headers; a plurality of heat exchange tubes disposed in parallel, spaced relationship in a generally vertical array and extending longitudinally between the first header and the second header, each of said heat exchange tubes having a longitudinal axis and a flattened cross-section, each of said flattened heat exchange tubes having an upper wall and a lower wall defining at least one longitudinally extending fluid flow passage in fluid communication between the first header and the second header, said at least one fluid flow passage having a height extending between the upper wall and the lower wall of said flattened tubular member; and at least one longitudinally extending condensate drain channel extending longitudinally along and formed in an upper external surface of the upper wall of at least one of said plurality of flattened heat exchange tubes and extending downwardly the full height of said at least one fluid flow passage.