CPC F28F 1/16 (2013.01) [F28B 1/06 (2013.01); F28F 1/04 (2013.01); F28F 1/126 (2013.01); F28F 1/26 (2013.01); F28F 1/40 (2013.01); F28F 13/12 (2013.01); F28F 1/02 (2013.01); F28F 3/025 (2013.01); F28F 2215/10 (2013.01)] | 24 Claims |
1. A fin for a heat exchange tube comprising a plurality of fin segments each fin segment comprising arrowhead shapes arranged along a length of said fin segment, said length parallel to an air flow direction along said fin segment; wherein said arrowhead shapes are arranged into arrowhead pairs, each arrowhead pair comprising an indented arrowhead shape and a raised arrowhead shape, where a pointed end of one arrowhead shape of a pair shares a point on the fin segment with a forked end of a second arrowhead shape of the pair, and wherein said pairs of arrowhead shapes are spaced apart along said length, the pointed end of each arrowhead pair separated from the forked end of an adjacent arrowhead pair by a portion of said fin segment that is flat.
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