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:
Jun. 20, 2017
Filed:
Mar. 14, 2014
Ksb Aktiengesellschaft, Frankenthal, DE;
Gerhard Huth, Hohenroth-Leutershausen, DE;
Sven Urschel, Eisenburg, DE;
Ralf Fischer, Heusweiler, DE;
KSB Aktiengesellschaft, Frankenthal, DE;
Abstract
A rotor () with a squirrel cage and permanent magnets () mounted on and distributed around the circumference of the rotor, including a core stack extending over the entire rotor region with longitudinally continuous rotor slots extending over the length of the core stack. The squirrel cage is constructed with cage bars disposed, and preferably cast, in the rotor slots; short circuit rings connect the cage bars at both end faces of the core; and the radius of the rotor region is reduced by at least the radial thickness of the magnets. The radius of rotor () is reduced over the entire length between short circuit rings () such that the radial height of cage bars () or cage webs () connected thereto is reduced. Also an electric motor or a radial pump having such a rotor, and methods of producing or operating such devices.