ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,996, issued on March 18, was assigned to ROLLS-ROYCE plc (London).
"Turbine overspeed protection" was invented by Andrew Parsley (Bristol, Great Britain) and Natalie C Wong (Bristol, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus and method for reducing a pressure differential across a turbine 19 of a gas turbine engine 10 during a shaft break event, comprises a pressure equalization apparatus 300, 400, 500, 600, 700 configured to introduce a pressurised fluid into a core airflow A at a region downstream of the turbine 19, wherein a rearward movement of the turbine 19 or a shaft 26 in a shaft break event directly actuates...