US Patent Issued to BorgWarner on Feb. 3 for "Bridgeless rotor assembly with reduced magnetic flux leakage" (Japanese, American Inventors)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,542,463, issued on Feb. 3, was assigned to BorgWarner Inc. (Auburn Hills, Mich.).

"Bridgeless rotor assembly with reduced magnetic flux leakage" was invented by Mitsuru Ishihara (Kanagawa, Japan), Andreas WP Mayer (Clarkston, Mich.) and Calahan B. Campton (Royal Oak, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor assembly for an electric motor includes a shaft extending along and rotatable about an axis. The rotor assembly also includes a lamination stack coupled to the shaft, a plurality of magnets including a first magnet coupled to the lamination stack, and a plurality of pole pieces spaced radially outward from the shaft. Each pole piec...