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COOLED VANE OR BLADE FOR A GAS TURBINE ENGINE

  • US 3,799,696 A
  • Filed: 06/29/1972
  • Issued: 03/26/1974
  • Est. Priority Date: 07/02/1971
  • Status: Expired due to Term
First Claim
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1. A cooled vane or blade for a gas turbine engine comprising a hollow leading edge blade portion having substantially unrestricted access to an exterior blade part adapted to be supplied with cooling air, said unrestricted access providing direct cooling to the interior surface of said hollow leading edge portion, the leading edge portion being provided with holes from the inner to the outer surface to provide film cooling, a hollow center blade portion separate from said hollow leading edge portion and comprising an air entry tube open to said exterior part and apertured to cause the air to impinge upon the inner surface of the central portion, said center portion having film cooling holes passing from the interior to the exterior surface thereof, and a trailing edge blade portion having a sinuous passage for cooling air extending therein.

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