US Patent Issued to Rolls-Royce North American Technologies on Oct. 14 for "Solid-state welded multi-piece radial turbine with air cooled blades for gas turbine engines" (Indiana Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,302, issued on Oct. 14, was assigned to Rolls-Royce North American Technologies Inc. (Indianapolis).

"Solid-state welded multi-piece radial turbine with air cooled blades for gas turbine engines" was invented by Michel S. Smallwood (Indianapolis) and Stanford Clemens (Indianapolis).

According to the abstract* released by the U.S. Patent & Trademark Office: "A multi-piece radial turbine rotor includes a hub, a plurality of turbine blades, and a flowpath ring that couples the turbine blades to the hub. The flowpath ring is 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...