ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,843, issued on Nov. 18, was assigned to Pratt & Whitney Canada Corp. (Longueuil, Canada).
"Hybrid electric propulsion system with pitch change mechanism operation" was invented by Yusuf Syed (Oakville, Canada), Thomas Trevor Ricci (Kirkland, Canada) and James Jarvo (Long Sault, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hybrid electric propulsion system for an aircraft is provided that includes a thermal engine, an electric motor, a gearbox, an electric power storage unit, a propulsion unit, and a controller. The thermal engine has a main oil pump configured to be driven by the thermal engine. The gearbox is in communication with the th...