ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,463,515, issued on Nov. 4, was assigned to ROLLS-ROYCE plc (London).
"Gas turbine engine" was invented by Matthew S Cartwright (Derby, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gas turbine engine includes: first spool including first compressor and first turbine drivingly coupled by first main shaft; second spool including a second compressor and second turbine drivingly coupled by second main shaft; combustion equipment; electrical machine arrangement including: first rotor drivingly coupled to first main shaft and carrying array of rotor elements; second rotor drivingly coupled to second main shaft and carrying array of rotor eleme...