Patents by Inventor LORENZ HRASKA

LORENZ HRASKA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dynamoelectric machine having cooling of the slip ring system
    Patent number: 12244189
    Abstract: A dynamoelectric machine includes a shaft, a rotor arranged fixedly on the shaft for conjoint rotation, and a slip ring system enabling a rotor winding system to be contacted electrically and including a slip ring body having slip rings arranged spaced-apart axially behind one another and assigned to an electrical phase. The slip ring body is connected fixedly to the shaft for conjoint rotation and has between an inner side thereof and the shaft a section which forms an axially open cavity on both skies. In a region of the slip ring system, the shaft is hollow with a hollow shaft portion assigned to the slip ring system for routing feed lines to the rotor winding system. Recesses are provided on the cavity axially on an inside and axially on an outside for introducing a cooling medium flow axially into the cavity and discharge thereof into an outlet region.
    Type: Grant
    Filed: January 11, 2022
    Date of Patent: March 4, 2025
    Assignee: Flender GmbH
    Inventors: Herbert Binder, Georg Brunner, Nicole Devingtel, Daniel Friedl, Thomas Garhammer, Robert Gruber, Lorenz Hraska, Oliver Memminger, Günther Ortmeier, Matthias Reisinger, Klaus Schifferer, Markus Sentef
  • DYNAMOELECTRIC MACHINE HAVING COOLING OF THE SLIP RING SYSTEM
    Publication number: 20240162794
    Abstract: A dynamoelectric machine includes a shaft, a rotor arranged fixedly on the shaft for conjoint rotation, and a slip ring system enabling a rotor winding system to be contacted electrically and including a slip ring body having slip rings arranged spaced-apart axially behind one another and assigned to an electrical phase. The slip ring body is connected fixedly to the shaft for conjoint rotation and has between an inner side thereof and the shaft a section which forms an axially open cavity on both skies. In a region of the slip ring system, the shaft is hollow with a hollow shaft portion assigned to the slip ring system for routing feed lines to the rotor winding system. Recesses are provided on the cavity axially on an inside and axially on an outside for introducing a cooling medium flow axially into the cavity and discharge thereof into an outlet region.
    Type: Application
    Filed: January 11, 2022
    Publication date: May 16, 2024
    Applicant: Flender GmbH
    Inventors: HERBERT BINDER, GEORG BRUNNER, NICOLE DEVINGTEL, DANIEL FRIEDL, THOMAS GARHAMMER, ROBERT GRUBER, LORENZ HRASKA, OLIVER MEMMINGER, GÜNTHER ORTMEIER, MATTHIAS REISINGER, KAUS SCHIFFERER, MARKUS SENTEF