ALEXANDRIA, Va., May 26 -- United States Patent no. 12,638,183, issued on May 26, was assigned to ROLLS-ROYCE DEUTSCHLAND LTD & CO KG (Blankenfelde-Mahlow, Germany).

"Injector assembly for an engine, and aircraft" was invented by Ruud Eggels (Berlin).

According to the abstract* released by the U.S. Patent & Trademark Office: "An engine injector assembly for introducing a gaseous fuel, a liquid fuel and air into a combustion chamber, has a stem and main body oriented along an axis. The main body includes: a central air duct on the axis, having an outlet for directing a central air flow, an outer air duct running radially outside around the central air duct, having an outlet for directing an external air flow, a liquid fuel supply radially ...