Patents by Inventor Kai Wöstmann

Kai Wöstmann 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 modifying a single shaft combined cycle power plant
    Patent number: 12055072
    Abstract: A method for modifying an existing single shaft combined cycle power plant having a steam turbine part and a gas turbine part which are connected to each other rigidly by an intermediate shaft. The gas turbine part is supported by two pin-ended supports allowing a certain axial displacement of the casing by rotating about corresponding axes. The old gas turbine part is replaced by a new gas turbine part having a different structure, namely a rigid support and a flexible support. Relative thermal expansion or displacement of the intermediate shaft is compensated by a hydraulic unit comprising a double-acting piston for displacing the gas turbine rotor with respect to the gas turbine stator. The hydraulic unit is controlled based on a displacement measurement in the steam turbine.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: August 6, 2024
    Assignee: Siemens Energy Global GmbH & Co. KG
    Inventors: Stefan Janssen, Michael Kursch, Till Spielmann, Johann Stach, Oliver Tobias Walk, Kai Wöstmann
  • METHOD FOR MODIFYING A SINGLE SHAFT COMBINED CYCLE POWER PLANT
    Publication number: 20230058708
    Abstract: A method for modifying an existing single shaft combined cycle power plant having a steam turbine part and a gas turbine part which are connected to each other rigidly by an intermediate shaft. The gas turbine part is supported by two pin-ended supports allowing a certain axial displacement of the casing by rotating about corresponding axes. The old gas turbine part is replaced by a new gas turbine part having a different structure, namely a rigid support and a flexible support. Relative thermal expansion or displacement of the intermediate shaft is compensated by a hydraulic unit comprising a double-acting piston for displacing the gas turbine rotor with respect to the gas turbine stator. The hydraulic unit is controlled based on a displacement measurement in the steam turbine.
    Type: Application
    Filed: March 23, 2020
    Publication date: February 23, 2023
    Applicant: Siemens Energy Global GmbH & Co. KG
    Inventors: Stefan Janssen, Michael Kursch, Till Spielmann, Johann Stach, Oliver Tobias Walk, Kai Wöstmann
  • INSPECTION DEVICE AND METHOD FOR POSITIONING AN INSPECTION DEVICE
    Publication number: 20120312103
    Abstract: An inspection device includes a distal area, a proximal area, and a flexible area disposed between the distal area and the proximal area. The flexible area includes a plurality of segments disposed displaceably to each other. At least one external guide element is disposed outside of the flexible area, between the distal area and the proximal area so that the distal area can be displaced with respect to the proximal area via the external guide element.
    Type: Application
    Filed: November 9, 2010
    Publication date: December 13, 2012
    Inventors: Kerstin Hannott, Margarete Neuhaus, Harm Speicher, Kai Wostmann