US Patent Issued to RTX on March 25 for "Hydrogen liquid oxygen combined cycle engine" (Connecticut Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,134, issued on March 25, was assigned to RTX Corp. (Farmington, Conn.).

"Hydrogen liquid oxygen combined cycle engine" was invented by Walter A. Ledwith Jr. (Marlborough, Conn.) and David Lei Ma (Avon, Conn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A propulsion system for an air vehicle includes a fan system that includes a fan that is coupled to a fan drive electric motor for generating a fan discharge airflow, an augmentor where fuel is mixed with a portion of the fan discharge airflow to generate a propulsive flow in a first operating configuration, a bypass duct for directing the fan discharge airflow into the augmentor, a duct blocker fo...