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Tubing element with fins for a heat exchanger

  • US 9,733,024 B2
  • Filed: 12/02/2013
  • Issued: 08/15/2017
  • Est. Priority Date: 11/30/2012
  • Status: Active Grant
First Claim
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1. Finned tubing element (10, 10

  • ) for a heat exchanger (100, 100

    ), the finned tubing element (10, 10

    ) being at least partially a rigid elongated heat exchanger tubing having at least a first end (20) and at least a second end (30) and having a first side wall (40) and a second side wall (50), the first side wall (40) and the second side wall (50) being arranged substantially parallel to each other and the distance (d) between the first side wall (40) and the second side wall (50) being considerably smaller than the width (W) of the first side wall (40) and the second side wall (50) resulting in a substantially overall flat tubing structure with connection walls (45, 55) on both sides,the finned tubing element (10, 10

    ) having a plurality of fins (60, 60

    ) on at least one of the outer surfaces (42, 52) of the first side wall (40) and/or of the second side wall (50), wherein the fins (60, 60

    ) are angled with respect to the finned tubing element by two defining angles (γ

    , δ

    ), wherein the first angle (γ

    ) is an angle of the fins (60, 60

    ) with respect to the connection walls (45, 55) of the finned tubing element, wherein the second angle (δ

    ) is the angle of the fins (60, 60

    ) with respect to the outer surfaces (42, 52) of the first side wall (40) or the second side wall (50),wherein the finned tubing element (10, 10

    ) is at least partially tilted, sloped, and at least partially helically wound and twisted so as to form at least a part of a helical structure, wherein the fins are twisted between endpoints of the fins along a flow direction and curved by an offset of a center part of a middle section of each fin with respect to the endpoints of each fin.

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