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:
Apr. 01, 2014
Filed:
Nov. 24, 2009
Gunther Elender, Fürstenzell, DE;
Oliver Memminger, Neuburg A.D. Inn, DE;
Norbert Schönbauer, Bad Füssing, DE;
Karl Senninger, Egglham, DE;
Gunther Elender, Fürstenzell, DE;
Oliver Memminger, Neuburg A.D. Inn, DE;
Norbert Schönbauer, Bad Füssing, DE;
Karl Senninger, Egglham, DE;
Siemens Aktiengesellschaft, München, DE;
Abstract
The rotor of an electrical motor should be designed simply and able to be efficiently cooled. To this end, the invention relates to an electrical motor having a rotor that has at least one radial cooling slot () and axially running cooling channels. The first cooling channels () run having their central axis at a different radial height opposite the axis of the rotor () than the second cooling channels (). A spacer () is arranged in the at least one radial cooling slot () by means of which a first cooling stream () can be conducted from one of the first cooling channels () into one of the second cooling channels (). A second partial package (T) in the flow direction can also be supplied with cool air in this way if it flows through the first partial package (T) in a cool region, such as near the shaft.