ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,234,791, issued on Feb. 25, was assigned to RTX Corp. (Farmington, Conn.).
"Geared turbomachine fan and compressor rotation" was invented by William G. Sheridan (Southington, Conn.) and Michael E. McCune (Colchester, Conn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An exemplary gas turbine engine includes a fan section including a fan rotor and at least one fan blade. A fan pressure ratio across the at least one fan blade is less than 1.45, noninclusive of the pressure across any fan exit guide vane system. The engine further includes a low-pressure compressor having a low-pressure compressor rotor that rotates together with the fan rotor at a commo...