The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 09, 1984
Filed:
May. 25, 1982
Vernon B Honsinger, Ballston Lake, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A high efficiency permanent magnet AC machine comprises a permanent magnet rotor mounted for rotation within a stator excited by alternating current. The rotor is formed of a cylindrical core of unitary laminations into which a squirrel cage winding is embedded. Current is induced in the winding to provide sufficient torque to accelerate the rotor from rest. Magnetic members are secured through the rotor core such that an even number of radial magnetic member segments each extend parallel to a respective quadrature machine axis. The magnetic members each generate magnetic flux which is directed parallel to a respective direct axis and perpendicular to a respective quadrature axis of the machine. As the rotor accelerates to synchronous speed, rotor flux interacts with stator flux causing the rotor to synchronize with the rotating stator field, thus allowing the machine to achieve synchronous machine performance.