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US 2025/0154870 A1Published application
Solid-state welded multi-piece radial turbine with air cooled blades for gas turbine engines
AssigneeRolls-Royce North American Technologies Inc.
InventorsMichel S. Smallwood, Stanford Clemens
Life of this patent
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Abstract
A multi-piece radial turbine rotor includes a hub, turbine blades, and a flowpath ring that couples the turbine blades to the hub. Joints between the components of the rotor are adapted for inspection during manufacture to identify potential defects in the joints.
Claims8
A radial turbine rotor, the rotor comprising:
- a hub arranged around a central axis that defines a radially-innermost surface of the rotor,
- a plurality of turbine blades located circumferentially outward of the hub,
- a flowpath ring configured to be coupled with each of the plurality of turbine blades and the hub to locate the flowpath ring radially between the hub and each of the plurality of turbine blades,
- wherein the hub is fixed to the flowpath ring by a friction weld joint formed between a radially-outwardly facing surface of the hub and a radially-inwardly facing surface of the flowpath ring.
1 more element
Dependencies are inferred from the claim text.