High strength induction machine, rotor, rotor cage end ring and bar joint, rotor end ring, and related methods

US7504756B2 · kind B2 · utility

Assignee

• The Board of Regents of the University of Texas System · US

Inventors

• Matthew Caprio · Seattle, US
• Vasileios Lelos · Austin, US
• John A. Herbst · Austin, US
• Stephen Manifold · Austin, US
• Howard Jordon · Mentor, US

Key dates

• Filing date: Jan 25, 2006
• Grant date: Mar 17, 2009
• Expiry date: May 13, 2027

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02K17/168
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A high strength induction machine, rotor, rotor cage end ring and bar joint, rotor end ring, and related methods are provided. An embodiment of an end ring and bar joint includes a main body adapted to substantially surround a rotor shaft when mounted thereto, a plurality of slots extending inwardly in a radial direction from outer peripheries of the main body, a thicker end ring section extending outwardly from a medial portion of the main body, being thicker than the outer peripheries of the main body, and also being adapted to substantially surround the rotor shaft, and a plurality of bosses extending axially and outwardly from outer peripheral portions in a direction opposite to the thicker end ring section and each adapted to receive an end portion of a rotor bar therein.