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. 20, 2024
Filed:
Jan. 21, 2020
Rolls-royce Deutschland Ltd & CO KG, Blankenfelde-Mahlow, DE;
Rolls-Royce Deutschland Ltd & Co KG, Blankenfelde-Mahlow, DE;
Abstract
A bandage for a rotor of an electrical machine that may be used in an electrical drive system of an aircraft is provided. The bandage, which serves to fix permanent magnets to the rotor, includes two rings, which are coaxial circular ring-like components, that are connected together by axial webs. The permanent magnets each have axial grooves on a surface of the respective permanent magnet facing the stator. The bandage is arranged on the rotor such that the permanent magnets lie between the rings, and the axial webs are positioned in the axial grooves. Since a thickness of the axial webs corresponds to a depth of the axial grooves, the magnet surfaces and the surface of the bandage are flush with one another, such that the bandage requires no additional space in an air gap.