US Patent Issued to ROLLS-ROYCE on April 7 for "Gas turbine engine and method thereof for reducing nonvolatile particulate matter emissions" (British Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,912, issued on April 7, was assigned to ROLLS-ROYCE PLC (London).

"Gas turbine engine and method thereof 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 has a first subset of fuel spray nozzles and a second subset of fuel spray nozzles. A combustor is operable with the first subset of fuel spray nozzles supplied with fuel at a greater fuel flow rate than each the second subset of fuel spray nozzles. A a ratio of the first subset of fuel spray nozzles to the second subset of fuel ...