US Patent Issued to PRATT & WHITNEY CANADA on Aug. 18 for "Fretting resistant rotary engine housings" (Canadian Inventors)

ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,709,983, issued on Aug. 18, was assigned to PRATT & WHITNEY CANADA CORP. (Longueuil, Canada).

"Fretting resistant rotary engine housings" was invented by Vincent Savaria (Laval, Canada) and Jean-Philippe Simoneau (Saint-Constant, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotary internal combustion engine includes a main rotor housing that has a peripheral wall that circumscribes a rotor cavity, a first interface surface and a second interface surface. A rotor is disposed within the rotor cavity. First and second side housings are secured against corresponding first and interface surfaces of the main rotor housing. The main rotor housing, t...