Patent ID: 8581452

Claim:
A high temperature motor comprising: a stator in a cylindrical shape on a motor axis having poles formed by wire windings on an inner circumference thereof, said wire windings being wound on respective wire spools held in place in respective slots formed on the inner circumference of said stator; a rotor mounted on a rotor shaft having poles formed by magnetic material and being positioned coaxially within an inner volume defined in said stator; a thin-walled cylinder positioned coaxially between said rotor and said stator for physically separating them, wherein said stator and said rotor are built up from a stack of magnetic-alloy laminations, and wherein said stator wire windings are made of a high temperature magnet wire insulated with a vitreous enamel film bonded to the magnet wire, and the wire windings are bonded together with an electrically resistant adhesive made of a ceramic binder, and wherein said rotor is separated from the wire windings in said stator by said thin-walled cylinder, thereby preventing debris from the stator windings from reaching the rotor, wherein said motor is configured as a resolver, having an interior resolver rotor that carries laminations and windings for providing signal feedback information, said resolver rotor being mountable to a shaft extension of a brushless DC motor at a non-drive end thereof and providing an output signal that is directly proportional to an angle through which the resolver rotor moves, wherein the resolver rotor and stator are built up from a stack of magnetic-alloy laminations, wherein the resolver stator and rotor windings are made of a high temperature magnet wire insulated with a vitreous enamel film bonded to the magnet wire, and the windings are bonded together with an electrically resistant adhesive made of a ceramic binder.