ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,747,697, issued on Sept. 29, was assigned to ROLLS-ROYCE plc (London).
"Cooling of components" was invented by Haidong Li (Bristol, Great Britain) and Caner H Helvaci (Derby, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A geared gas turbine engine is shown. It comprises a high pressure turbine configured to drive a compressor and a low pressure turbine configured to drive a propulsor via a reduction gearbox. The high pressure turbine comprises a turbine stage, and the turbine stage comprises a set of nozzle guide vanes, NGVs, and a plurality of turbine blades downstream of the set of NGVs. A ratio, Epsilon1, of a cooling mass flow for c...