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Heat transfer surface with a microstructure of projections galvanized onto it

  • US 6,736,204 B2
  • Filed: 11/27/2002
  • Issued: 05/18/2004
  • Est. Priority Date: 12/06/2001
  • Status: Expired due to Fees
First Claim
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1. A heat transfer surface on tubular or plate-like bodies having a microstructure of projections which protrude out of the base surface and are galvanized onto the base surface with a minimum height of 10 μ

  • m, characterized in that the base surface (3a) is partially or entirely covered with projections (6);

    these projections (6) are applied in the form of ordered microstructures (7) and have a pin shape, extending with their longitudinal axis (6c) either perpendicular to the base surface (3a) or at an angle (α

    ) between 30° and

    90°

    , wherein the number of projections per unit of area is selected as a function of the thickness (d) of the pin-shaped projections (6) and is between 100 μ

    m and 0.2 μ

    m for a number between 102/cm2 and 108/cm2.

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