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:
Aug. 22, 2006
Filed:
Nov. 27, 2002
Ingolf Groening, Lohr am Main, DE;
Ingolf Groening, Lohr am Main, DE;
Rexroth Indramat GmbH, Lohr am Main, DE;
Abstract
The invention relates to a synchronous AC electric motor with concentrated windings (), whereby one primary side pole is comprised of a series of toothed-modules () with each toothed-module () being connected in the correct electrical phase sequence to a corresponding phase () of the motor electrical supply (). In order to provide a highly optimized concentrated winding motor design applicable equally to either linear or rotating machines, which retains the performance benefits of existing concentrated-winding motors it is proposed that neighboring modules () are wound so as to have alternating polarities, whereby the number of toothed-modules () comprising a primary side pole is exactly equal to twice the number of motor phases (), and that the motor is designed to operate using an air-gap flux component which is harmonic of the fundamental phase current frequency.