US Patent Issued to ROLLS-ROYCE on April 14 for "Gas turbine engine and method thereof for reducing non-volatile particulate matter emissions" (British Inventors)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,492, issued on April 14, was assigned to ROLLS-ROYCE PLC (London).

"Gas turbine engine and method thereof for reducing non-volatile 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 for aircraft includes a combustor with a combustion chamber and fuel spray nozzles to inject fuel into the combustion chamber. The fuel spray nozzles include a first subset and a second subset of nozzles. Each of the first subset is supplied with fuel at a greater rate than each of the second subset. A ratio of the first subse...