Retention device for a composite blade of a gas turbine engine
AssigneeROLLS-ROYCE plc
InventorSteven A. Radomski
Life of this patent
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Abstract
A liner for a composite blade of a gas turbine engine includes a metallic shoe, operable substantially to encase a blade root of a composite blade and defining an inner surface and an outer surface. The liner also includes a retention lug formed on the shoe and has inner and outer keys that project from opposed portions of the inner and outer surfaces. The keys engage corresponding recesses on a dovetail slot and a blade root to resist axial displacement of the composite blade.
Claims13
A liner for a composite blade of a gas turbine engine, the liner comprising a metallic shoe for at least partially encasing a blade root of a composite blade, the metallic shoe having an inner surface, an outer surface, and a retention lug,
- wherein the retention lug comprises an outer key which projects from an outer surface of the retention lug and configured for axial retention of the blade,
- wherein the metallic shoe comprises a base portion and opposed flank portions, and
- wherein the retention lug is formed on a flank portion.
Dependencies are inferred from the claim text.