ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,133, issued on April 21, was assigned to PRATT & WHITNEY CANADA CORP. (Longueuil, Canada).
"Propulsive engine having a lubricant system driven by compressed air" was invented by Todd Miller (Toronto).
According to the abstract* released by the U.S. Patent & Trademark Office: "A propulsive engine, has: a core having a compressor section and a turbine section, the turbine section drivingly engaging the compressor section via a shaft, the compressor section having a bleed outlet for extracting compressed air at a bleed pressure; a support structure including an engine case surrounding the core, the support structure defining bearing cavities; bearings located inside the bearing cav...