×

Turbine blade plateform sealing and vibration damping apparatus

  • US 4,872,812 A
  • Filed: 08/05/1987
  • Issued: 10/10/1989
  • Est. Priority Date: 08/05/1987
  • Status: Expired due to Term
First Claim
Patent Images

1. An insert element to be loosely received between first and second opposing and converging edge surfaces of adjacent blade platforms of a rotor of a gas turbine engine and, in response to centrifugal forces acting thereon due to high rotor rotation speed, to seal a gap between the edge surfaces and to dampen vibration of the blades, said element comprising:

  • an elongated body having a longitudinal axis and at least three element surfaces configured and arranged symmetrically about said longitudinal axis so that, irrespective of the orientation with which said element is received between the platform edges, the centrifugal forces will drive one of said element surfaces into sealing engagement against the first edge surface and will drive another of said element surfaces into sealing engagement against the second edge surface.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×