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:
May. 12, 2026
Filed:
May. 20, 2021
Novares France, Clamart, FR;
Cédric Ledieu, Mont Saint Eloi, FR;
NOVARES FRANCE, Clamart, FR;
Abstract
A rotor having channels for circulating a cooling fluid, a rotor shaft which is mounted for rotation about an axis, and a lamination stack which is mounted coaxially on the shaft. The lamination stack includes first internal cavities and second internal cavities which are symmetrical relative to the axis of the shaft and relative to each other. The two second internal cavities extend axially through the whole of the lamination stack so that they open, at the first end, into a front lateral face of the lamination stack and, at the other end, into a rear lateral face. The two second internal cavities are configured to allow a cooling fluid to circulate inside the lamination stack. A plurality of permanent magnets are received inside the first internal cavities. A front flange and a rear flange which are mounted coaxially on the shaft are arranged on either side of the lamination stack so as to be contiguous with the front and rear lateral faces, respectively.