ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,735,991, issued on Sept. 15, was assigned to RTX Corp. (Farmington, Conn.).
"Hybrid gas turbofan powered idle descent mode" was invented by Neil Terwilliger (Cheshire, Conn.), Daniel Bernard Kupratis (Wallingford, Conn.) and Michael Romero (Manchester, Conn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of operating an aircraft hybrid gas turbofan during an idle mode of operation includes reducing a fuel flow to a primary gas turbine engine and boosting a high spool of the primary gas turbine engine using a secondary gas turbine engine via a first power linkage connecting the primary and secondary gas turbine engines, such that a net fuel red...