Patents by Inventor Thomas SCHUHMANN

Thomas SCHUHMANN 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).

  • Method for testing a bar winding of a rotor of a rotating electrical machine
    Patent number: 9696381
    Abstract: In a method for testing a bar winding of a rotor of a rotating electrical machine, a rotor temperature is detected by a thermal radiation sensor, which is arranged in a stator of the rotating electrical machine. A thermal radiation sensor is used with a resolution suitable for the thermal detection of individual bars of the bar winding. The rotor is rotated at a speed that is lower than a limit frequency of the thermal radiation sensor divided by the number of bars of the bar winding, and the thermal radiation of the rotor is detected by the thermal radiation sensor. The thermal radiation sensor is sampled at a sampling frequency that is higher than the speed of the rotor multiplied by the number of bars and the sampled values of the thermal radiation sensor are evaluated.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: July 4, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: Jürgen Zettner, Christian Deeg, Thomas Schuhmann
  • METHOD FOR TESTING A BAR WINDING OF A ROTOR OF A ROTATING ELECTRICAL MACHINE
    Publication number: 20160274192
    Abstract: In a method for testing a bar winding of a rotor of a rotating electrical machine, a rotor temperature is detected by a thermal radiation sensor, which is arranged in a stator of the rotating electrical machine. A thermal radiation sensor is used with a resolution suitable for the thermal detection of individual bars of the bar winding. The rotor is rotated at a speed that is lower than a limit frequency of the thermal radiation sensor divided by the number of bars of the bar winding, and the thermal radiation of the rotor is detected by the thermal radiation sensor. The thermal radiation sensor is sampled at a sampling frequency that is higher than the speed of the rotor multiplied by the number of bars and the sampled values of the thermal radiation sensor are evaluated.
    Type: Application
    Filed: February 19, 2014
    Publication date: September 22, 2016
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Jürgen ZETTNER, Christian DEEG, Thomas SCHUHMANN