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Divoted airfoil baffle having aimed cooling holes

  • US 8,152,468 B2
  • Filed: 03/13/2009
  • Issued: 04/10/2012
  • Est. Priority Date: 03/13/2009
  • Status: Active Grant
First Claim
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1. A baffle insert for an internally cooled airfoil, the baffle insert comprising:

  • a liner having a continuous perimeter formed to shape a hollow body having a first end and a second end;

    a divoted segment of the hollow body positioned between the first end and the second end; and

    a plurality of cooling holes positioned on the divoted segment to aim cooling air exiting the baffle insert;

    wherein the divoted segment comprises an elongate, longitudinal depression in the hollow body extending between the first end and the second end, the depression comprising;

    a first curved segment having a first column of cooling holes;

    a second curved segment having a second column of cooling holes; and

    an elbow segment connecting the first curved segment with the second curved segment and having a third column of cooling holes centered on the divoted segment.

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