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Method of manufacturing a heat shield for a fuel manifold

  • US 7,559,142 B2
  • Filed: 10/24/2006
  • Issued: 07/14/2009
  • Est. Priority Date: 09/26/2006
  • Status: Active Grant
First Claim
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1. A method for producing a manifold ring having a heat shield for a gas turbine engine, the method comprising:

  • providing a tubular portion of heat shield material, the tubular portion having an arcuate longitudinal axis and an annular cross-section;

    hydroforming the tubular portion to change its shape such that a cross-section thereof defines a profile corresponding to at least two complementary heat shield portions, the heat shield portions being configured to cooperate to significantly surround at least a circumferential portion of the manifold ring;

    cutting the tubular portion to divide the tubular portion into each of the heat shield portions, and then positioning the divided heat shield portions around the circumferential portion of the manifold ring, such that the manifold ring is substantially enclosed by the heat shield portions.

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