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. 11, 2014
Filed:
Nov. 24, 2009
Oliver Memminger, Neuburg a. Inn, DE;
Friedrich Schöberl, Ruhstorf a.d. Rott, DE;
Norbert Schönbauer, Bad Füssing, DE;
Johann Stegner, Ruhstorf, DE;
Robert Danner, Tettenweis, DE;
Jürgen Draber, Passau, DE;
Daniel Friedl, Fürstenzell, DE;
Anatoli Vogel, Passau, DE;
Oliver Memminger, Neuburg a. Inn, DE;
Friedrich Schöberl, Ruhstorf a.d. Rott, DE;
Norbert Schönbauer, Bad Füssing, DE;
Johann Stegner, Ruhstorf, DE;
Robert Danner, Tettenweis, DE;
Jürgen Draber, Passau, DE;
Daniel Friedl, Fürstenzell, DE;
Anatoli Vogel, Passau, DE;
Siemens Aktiengesellschaft, München, DE;
Abstract
An electrical machine with a stator has a winding support, which has at least one radial cooling slot, and a rotor, which likewise has at least one radial cooling slot. The winding support of the stator has on its outer shell a number of axially running cooling ribs, along which an axially running first cooling flow can be directed. Furthermore, the rotor has axially running first cooling ducts, which open out into its at least one radial cooling slot, so that a second cooling flow can be directed in the axial direction along the axial cooling ribs of the stator through the axial first cooling ducts of the rotor, the at least one radial cooling slot of the rotor, the air gap between the rotor and the stator and the at least one radial cooling slot. In this way, the stator can be cooled by two different cooling flows.