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Ceramic turbine rotor disc and blade configuration

  • US 3,897,171 A
  • Filed: 06/25/1974
  • Issued: 07/29/1975
  • Est. Priority Date: 06/25/1974
  • Status: Expired due to Term
First Claim
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1. A ceramic rotor disc for gas turbines including:

  • ceramic airfoil blades integral with said ceramic rotor disc;

    each of said airfoil blades having an airfoil portion on their radially outer section an intermediate platform portion, and an elongated shank portion on their radially inner section, an elongated cavity being disposed between adjacent blade shanks, each of said cavities having wall portions, said wall portions being coated with a parting material, said cavity being filled with a ceramic plug, said ceramic plug serving as a centrifugal force pin to help reduce vibratory motion of the airfoil blades during rotor disc rotation.

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