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US 5,259,728 AGranted
Bladed disk assembly
AssigneeGeneral Electric Company
InventorsStephen J. Szpunar, David E. Bulman
Life of this patent
Estimating the term…
Abstract
A bladed disk assembly includes a rotor disk having an axial dovetail slot, and a rotor blade having a dovetail disposed in the slot. A blade retainer is fixedly joined to the disk for retaining the dovetail in the slot. A spacer is disposed in the slot between the blade retainer and the dovetail and is selectively compressible for allowing the dovetail to slide in the slot toward the blade retainer for generating friction forces to dissipate energy upon impact of a predeterminedly sized foreign object.
Claims10
A bladed disk assembly comprising:
- a rotor disk having an axial dovetail slot;
- a rotor blade including an airfoil and a dovetail disposed in said slot;
- a blade retainer fixedly joined to said disk for retaining said dovetail in said slot;
- and
- a first spacer disposed in said slot between said blade retainer and said dovetail, said first spacer being substantially rigid up to a predetermined limit of axial force transmitted from said dovetail to said blade retainer through said first spacer, and predeterminedly compressible upon reaching said limit for allowing said dovetail to slide in said slot toward said blade retainer for generating friction forces to dissipate energy.
2 more elements
Dependencies are inferred from the claim text.