ALEXANDRIA, Va., June 18 -- United States Patent no. 12,326,092, issued on June 10, was assigned to PRATT & WHITNEY CANADA CORP. (Longueuil, Canada).
"Engine exhaust reverse flow prevention" was invented by Sylvain Lamarre (Boucherville, Canada), Kashif Mohammed (Brossard, Canada) and John Sgouromitis (Dorval, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "An aircraft engine has an exhaust duct receiving an engine gas flow and a heat exchanger duct having a wall extending from an inlet receiving a cooling air flow to an outlet connected to the exhaust duct. A heat exchanger is disposed in the heat exchanger duct between the inlet and outlet. A diverted airflow pathway in the heat exchanger duct includ...