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Gas turbine combustor

  • US 6,701,714 B2
  • Filed: 12/05/2001
  • Issued: 03/09/2004
  • Est. Priority Date: 12/05/2001
  • Status: Expired due to Term
First Claim
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1. A combustor for a gas turbine engine comprising:

  • a support shell having an exterior surface, an interior surface and a plurality of impingement coolant holes extending through the support shell between the exterior surface and the interior surface;

    at least one liner segment attached to the support shell, the liner segment comprising a panel having a face surface, a back surface and a plurality of coolant holes where in the back surface of the panel faces and is spaced from the the interior surface of the support shell and defines therebetween a gap, wherein at least a portion of the back surface of the panel has a surface profile for improving the heat transfer properties of the liner segment with negligible increase in pressure drop across the combustor when compared to a flat back surface of the panel, wherein the surface profile comprises an array of surface features having a height A of less than 100 mils and a spacing B of greater than 10 mils.

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