US Patent Issued to RTX on July 29 for "Gas turbine engine with controlled return of fuel to power accessories and retrofitting method" (Massachusetts Inventor)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,032, issued on July 29, was assigned to RTX Corp. (Farmington, Conn.).

"Gas turbine engine with controlled return of fuel to power accessories and retrofitting method" was invented by David Christopher Kiely (Easthampton, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A retrofit gas turbine engine includes a compressor, a combustor and a turbine. A tie shaft is connected to rotate by the turbine, and provide rotational drive into a gearbox. At least one fuel pump is connected to be driven by the gearbox. The at least one fuel pump delivers fuel downstream toward the combustor, and also has a return line. An added accessory turbine is positione...