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Airfoil trailing edge cooling configuration

  • US 5,102,299 A
  • Filed: 11/10/1986
  • Issued: 04/07/1992
  • Est. Priority Date: 11/10/1986
  • Status: Expired due to Fees
First Claim
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1. An airfoil having a pressure side wall and a suction side wall defining a forward region and a trailing edge region of said airfoil;

  • said pressure side wall abutting said suction side wall in said trailing edge region of said airfoil;

    a cavity for receiving cooling air formed between the inner surfaces of said pressure side wall and said suction side wall in said forward region of said airfoil;

    a plurality of cooling air discharge slots formed in said pressure side wall in said trailing edge region of said airfoil; and

    air flow metering and crossover means in said trailing edge region of said airfoil for passing cooling air from said cavity to said cooling air discharge slots;

    said air flow metering and crossover means comprising a plurality of cooling air input channels each formed in the inner surface of said suction side wall and entering said cavity, a plurality of cooling air output channels each formed in the inner surface of said pressure side wall and coupled to one of said plurality of cooling air discharge slots, and a plurality of air passageways each formed in the inner surface of said suction side of said airfoil and coupling one of said plurality of cooling air input channels to a corresponding one of said plurality of cooling air output channels.

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