Patents by Inventor Tobias Hogen

Tobias Hogen 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).

  • Patent number: 10385733
    Abstract: A method for starting a steam turbine system having a steam generator, a steam turbine which is connected to the steam generator and includes at least two turbine stages that, at the time of starting the steam turbine system, have different outlet temperatures, a condenser connected to the steam turbine and a consumer driven by the steam turbine, in which the steam generated in the steam generator is used to start the steam turbine, wherein, until the steam generated in the steam generator reaches a predetermined temperature that at least corresponds to the temperature requirement of the turbine stage with the higher outlet temperature, only the turbine stage with the lower outlet temperature is operated, and in that the turbine stage with the higher outlet temperature is brought on-line only once the predetermined temperature has been reached.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: August 20, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Edwin Gobrecht, Jan Greis, Matthias Heue, Tobias Hogen
  • Patent number: 10100665
    Abstract: A method for heating up a steam turbine or for keeping a steam turbine hot, which steam turbine has at least one pressure stage working at an initial pressure or intermediate pressure, at least one final pressure stage which is fluidically connected downstream of the pressure stage and works at a final pressure which is lower than the initial pressure or intermediate pressure, and at least one condenser which is connected downstream of the final pressure stage, wherein steam generated outside the steam turbine is introduced into the pressure stage. After flowing through the pressure stage and bypassing the final pressure stage, the steam is supplied directly to the condenser.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: October 16, 2018
    Assignee: Siemens Aktiengesellschaft
    Inventors: Tobias Hogen, Yevgen Kostenko, Sebastian Zahn, Uwe Zander
  • Publication number: 20170306801
    Abstract: A method for shortening the start-up process of a steam turbine is provided which has a turbine housing and turbine components which are provided inside the turbine housing. The turbine components during operation come into contact with hot steam which flows through the turbine housing and include a turbine shaft which passes axially through the turbine housing. Sealing regions, which during operation of the steam turbine are acted upon by seal steam, are formed between the turbine shaft and the turbine housing. Thermal energy is fed to the steam turbine during a shutdown of said steam turbine, wherein seal steam is fed to the interior of the turbine housing during the shutdown of the steam turbine in order to heat and/or to keep warm the turbine components which are provided in the interior of the turbine housing.
    Type: Application
    Filed: October 5, 2015
    Publication date: October 26, 2017
    Inventors: ULRICH BEUL, SVEN DREES, Tobias Hogen, Yevgen Kostenko, Daniel Liedtke, Oliver Stawarski, Andreas Stiehm, Sebastian Zahn
  • Publication number: 20170204741
    Abstract: A method for heating up a steam turbine or for keeping a steam turbine hot, which steam turbine has at least one pressure stage working at an initial pressure or intermediate pressure, at least one final pressure stage which is fluidically connected downstream of the pressure stage and works at a final pressure which is lower than the initial pressure or intermediate pressure, and at least one condenser which is connected downstream of the final pressure stage, wherein steam generated outside the steam turbine is introduced into the pressure stage. After flowing through the pressure stage and bypassing the final pressure stage, the steam is supplied directly to the condenser.
    Type: Application
    Filed: April 29, 2015
    Publication date: July 20, 2017
    Applicant: Siemens Aktiengesellschaft
    Inventors: Tobias HOGEN, Yevgen KOSTENKO, Sebastian ZAHN, Uwe ZANDER
  • Publication number: 20170096914
    Abstract: A method for starting a steam turbine system having a steam generator, a steam turbine which is connected to the steam generator and includes at least two turbine stages that, at the time of starting the steam turbine system, have different outlet temperatures, a condenser connected to the steam turbine and a consumer driven by the steam turbine, in which the steam generated in the steam generator is used to start the steam turbine, wherein, until the steam generated in the steam generator reaches a predetermined temperature that at least corresponds to the temperature requirement of the turbine stage with the higher outlet temperature, only the turbine stage with the lower outlet temperature is operated, and in that the turbine stage with the higher outlet temperature is brought on-line only once the predetermined temperature has been reached.
    Type: Application
    Filed: April 30, 2015
    Publication date: April 6, 2017
    Inventors: Edwin Gobrecht, Jan Greis, Matthias Heue, Tobias Hogen