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TURBINE AIRFOIL TIP SHELF AND SQUEALER POCKET COOLING

  • US 20150118063A1
  • Filed: 04/10/2014
  • Published: 04/30/2015
  • Est. Priority Date: 04/05/2012
  • Status: Active Grant
First Claim
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1. An airfoil comprising:

  • a pressure surface and a suction surface extending from a root section of the airfoil to a tip section of the airfoil;

    a leading edge and a trailing edge defining a chord length of the airfoil therebetween;

    a tip shelf formed along the tip section of the airfoil between the pressure surface and a tip shelf wall, wherein the tip shelf wall is spaced between the pressure surface and the suction surface, wherein the tip shelf extends from within 10% of the chord length measured from the leading edge to within 10% of the chord length measured from the trailing edge; and

    a squealer pocket formed along the tip section of the airfoil between the tip shelf wall and a squealer tip wall extending from the suction surface, wherein the squealer pocket extends from within 10% of the chord length measured from the leading edge to terminate less than 85% of the chord length measured from the trailing edge.

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