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:
Jan. 16, 2018
Filed:
Oct. 30, 2012
Valeo Equipements Electriques Moteur, Creteil, FR;
Lilya Bouarroudj, Charenton le Pont, FR;
Jean-Claude Matt, Dijon, FR;
Jean-Claude Labrosse, Charenton le Pont, FR;
Abstract
A rotor () comprising a plurality of alternating magnetic poles formed by permanent magnets () distributed regularly between a circumferential portion () and a central portion () of the magnetic body () of the rotor and defining circumferential pole sections (). The pole sections have a pre-determined pole pitch (Thetarho) and comprise a lobe-forming radial section (). The lobe-forming radial section partially covers the magnets, such as to maximize a useful magnetic flux (PhiU) flowing radially through each of the pole sections and to minimize a leakage magnetic flux flowing through the circumferential portion. The pole sections can have a pre-determined pole overlap angle (Thetar) such as to maximize the useful magnetic flux (PhiU) and to minimize the leakage magnetic flux (PhiL), said overlap angle (Thetar) being a viewing angle of the lobe () from a point on the axis of the rotor.