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. 24, 2015
Filed:
Aug. 13, 2010
Klaus Büttner, Hollstadt, DE;
Klaus Kirchner, Ostheim, DE;
Michael Müller, Bad Kissingen, DE;
Siemens AG, München, Ingolstadt, unknown;
Abstract
The invention relates to a cage rotor for an asynchronous machine () comprising starting bars for improving the starting behavior. The invention further relates to a method for producing such a cage rotor. In order to achieve as great an efficiency as possible, the cage rotor comprises a laminated rotor core () having grooves () and operating bars () disposed in the grooves () and contacting the laminated rotor core () directly on the inner groove base as seen in the radial direction of the cage rotor, wherein the operating bars () comprise partial cladding () enclosing an outer surface of the operating bars () as seen in the radial direction () of the cage rotor, wherein the material of the operating bars () comprises a greater specific conductivity than the material of the partial cladding ().