ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,476,521, issued on Nov. 18, was assigned to Hamilton Sundstrand Corp. (Charlotte, N.C.).

"Ceramic sleeve for a stator housing of an electrical machine" was invented by David James Tate (Hemel Hempstead, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to an electrical machine comprising a rotor rotatable about a rotor axis, a stator surrounding at least a portion of the rotor, a stator housing defining a compartment containing the stator and a cooling fluid, and a ceramic sleeve extending between the stator and the rotor. The cooling fluid is configured to surround and cool the stator during operation, and the ...