Patents by Inventor Stefan Koschik

Stefan Koschik 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).

  • Stator winding for a rotating electrical machine
    Patent number: 11502567
    Abstract: The disclosure relates to a stator for a rotating electrical machine. The stator includes: a laminated core which provides stator teeth with respect to an air gap of the rotating electrical machine, and a stator winding which has a plurality of tooth windings, wherein a respective one of the tooth windings is arranged on a respective one of the stator teeth and has a respective first electrical conductor arranged in a plurality of turns running around the respective stator tooth. The disclosure is based on the object of improving the electrical safety with respect to short circuits in the region of the stator winding. It is proposed that the respective tooth winding has a respective second electrical conductor which is electrically insulated from the first electrical conductor and has a plurality of turns arranged in a manner running around the respective stator tooth, wherein the respective turns of the first and second electrical conductors are arranged in a bifilar manner.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: November 15, 2022
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Wolfram Siegfried Birkmayer, Stefan Koschik
  • Method of manufacturing a rotor and electric machine
    Patent number: 10998800
    Abstract: The invention relates to a method of manufacturing a rotor for an electric machine, wherein the rotor is composed of at least one electric sheet wherein at least one electric sheet is thermally treated regionally to directly modify its magnetic permeability in the treated region.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: May 4, 2021
    Assignee: RHEINISCH-WESTFÄLISCHE TECHNISCHE HOCHSCHULE (RWTH) AACHEN
    Inventors: Tobias Lange, Rik W. De Doncker, Mareike Schenk, Stefan Koschik
  • STATOR WINDING FOR A ROTATING ELECTRICAL MACHINE
    Publication number: 20200244127
    Abstract: The disclosure relates to a stator for a rotating electrical machine. The stator includes: a laminated core which provides stator teeth with respect to an air gap of the rotating electrical machine, and a stator winding which has a plurality of tooth windings, wherein a respective one of the tooth windings is arranged on a respective one of the stator teeth and has a respective first electrical conductor arranged in a plurality of turns running around the respective stator tooth. The disclosure is based on the object of improving the electrical safety with respect to short circuits in the region of the stator winding. It is proposed that the respective tooth winding has a respective second electrical conductor which is electrically insulated from the first electrical conductor and has a plurality of turns arranged in a manner running around the respective stator tooth, wherein the respective turns of the first and second electrical conductors are arranged in a bifilar manner.
    Type: Application
    Filed: September 27, 2018
    Publication date: July 30, 2020
    Inventors: Wolfram Siegfried Birkmayer, Stefan Koschik