ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,745, issued on May 13, was assigned to ROLLS-ROYCE plc (London).
"Gearboxes for aircraft gas turbine engines" was invented by Mark Spruce (Derby, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "Gearboxes for aircraft gas turbine engines, in particular to arrangements for journal bearings such gearboxes, and to related methods of operating such gearboxes and gas turbine engines. Example embodiments include a gearbox for an aircraft gas turbine engine, the gearbox including: a sun gear; a plurality of planet gears surrounding and engaged with the sun gear; and a ring gear surrounding and engaged with the plurality of planet gears, each of...