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Two piece hollow turbine blade with serpentine cooling circuits

  • US 7,862,299 B1
  • Filed: 03/21/2007
  • Issued: 01/04/2011
  • Est. Priority Date: 03/21/2007
  • Status: Expired due to Fees
First Claim
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1. A turbine airfoil for use in a gas turbine engine, the airfoil comprising:

  • an airfoil pressure side piece extending from the root to the tip of the blade and having a first serpentine flow cooling circuit therein;

    an airfoil suction side piece extending from the root to the tip of the blade and having a second serpentine flow cooling circuit therein;

    a bond formed between the two pieces to form a single turbine airfoil;

    a first row of pressure side exit holes on the trailing edge of the blade in fluid communication with the first serpentine flow cooling circuit; and

    ,a second row of suction side exit holes on the trailing edge of the blade in fluid communication with the second serpentine flow cooling circuit.

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