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Blunted leading edge fan blade for noise reduction

  • US 3,883,268 A
  • Filed: 08/29/1973
  • Issued: 05/13/1975
  • Est. Priority Date: 11/01/1971
  • Status: Expired due to Term
First Claim
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1. In a gas turbine engine of the type which includes rotating turbomachinery, a combustion section, and an exhaust nozzle adapted to provide a propulsive force, the improvement comprising:

  • a rotatable disc; and

    a plurality of turbomachinery rotor blades carried by said disc and having leading edges at least a portion of which include blunting means for reducing the noise generated by the rotation of said blade, and wherein said leading edges of said blades are generally coplanar.

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