US Patent Issued to RTX on July 7 for "CMC airfoil with cooling passage having multi-dimensional plenum" (Connecticut, California Inventors)

ALEXANDRIA, Va., July 7 -- United States Patent no. 12,674,392, issued on July 7, was assigned to RTX Corp. (Farmington, Conn.).

"CMC airfoil with cooling passage having multi-dimensional plenum" was invented by James T. Roach (Vernon, Conn.), Jonas Banhos (West Hartford, Conn.), Russell Kim (Temecula, Calif.) and Raymond Surace (Newington, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A CMC airfoil includes core fiber plies that define a radial tube that circumscribes an internal cavity, and skin fiber plies that define an exterior of the airfoil section. There is a filler element in the trailing edge region aft of the internal cavity and sandwiched between the skin fiber plies on the pressure side a...