US Patent Issued to ROLLS-ROYCE on Aug. 11 for "Aircraft engine and method of operating aircraft engine for reducing nonvolatile particulate matter emissions" (British Inventors)

ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,704,090, issued on Aug. 11, was assigned to ROLLS-ROYCE plc (London).

"Aircraft engine and method of operating aircraft engine for reducing nonvolatile particulate matter emissions" was invented by Christopher P Madden (Derby, Great Britain) and Peter Swann (Derby, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gas turbine engine includes a combustor with a combustion chamber and fuel spray nozzles to inject fuel into the combustion chamber. The nozzles include a first and second subset. Each of the nozzles of the first subset is supplied with fuel at a greater flow rate than each of the second subset. A ratio of nozzles in the first sub...