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:
Feb. 21, 2017
Filed:
Jul. 02, 2015
Abb Technology Ag, Zurich, CH;
Jere Kolehmainen, Vaasa, FI;
ABB Schweiz AG, Baden, CH;
Abstract
A rotor as disclosed for an electric machine which includes a rotor core having a plurality of rotor sheets stacked in an axial direction, each of the plurality of rotor sheets having a plurality of flux paths made of a material of high permeance, a plurality of flux barriers made of a material of low permeance, a plurality of bridges made of a material of high permeance, each of the plurality of bridges extending across a corresponding flux barrier, and at least one axial magnet located axially adjacent a corresponding bridge and configured to saturate the corresponding bridge, each axial magnet being axially pressed between two elements at least one of which is a bridge corresponding to the axial magnet.