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US 8,944,770 B2Granted
Integrated ceramic matrix composite rotor disk hub geometry for a gas turbine engine
AssigneeUnited Technologies Corporation
InventorsIoannis Alvanos, Gabriel L. Suciu, Brian D. Merry, Christopher M. Dye
Life of this patent
Estimating the term…
Abstract
A rotor disk for a gas turbine engine includes a CMC hub and a rail integrated with the CMC hub opposite the multiple of CMC airfoils, the rail defines a rail platform section that tapers to a rail inner bore.
Claims8
A disk for a gas turbine engine comprising:
- a CMC hub defined about an axis;
- a rail integrated with said CMC hub, said rail defines a rail platform section that tapers to a rail inner bore;
- an arm integrated with said CMC hub, said arm extending axially from said CMC hub at a radial distance from said axis that is equal to a self-sustaining radius wherein mass radially inboard of said self-sustaining radius is load carrying and mass radially outboard of said self-sustaining radius is not load carrying and cannot support itself;
- and
- multiple CMC airfoils integrated with and extending radially outwards from said CMC hub in a circumferential arrangement, and said CMC hub, said rail, and said multiple CMC airfoils form a monolithic piece with a continuity of fibers.
2 more elements
A CMC disk for a gas turbine engine comprising:
- a CMC hub defined about an axis;
- a multiple of airfoils which extend from said CMC hub;
- a rail integrated with said CMC hub opposite said multiple of airfoils, said rail defines a rail platform section adjacent to said multiple of airfoils that tapers to a rail inner bore;
- and
- an arm integrated with said CMC hub, said arm extending axially from said CMC hub at a radial distance from said axis that is equal to a self-sustaining radius wherein mass radially inboard of said self-sustaining radius is load carrying and mass radially outboard of said self-sustaining radius is not load carrying and cannot support itself, wherein said CMC hub, said rail. and said multiple CMC airfoils form a monolithic piece with a continuity of fibers.
2 more elements
Dependencies are inferred from the claim text.