Patents by Inventor Tobias Proll

Tobias Proll 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: 9966776
    Abstract: An electrical arrangement includes a high-voltage battery and a number of electrical utility arrangements connected to the battery via a main switch and a downstream back-up capacitor. A discharge circuit is connected to the capacitor and has a discharge path with an ohmic discharge resistor. In normal mode no current flows in the discharge resistor. Opening the main switch effects a transition from normal mode to special mode, while the discharge path is energized and electrical energy stored in the capacitor is converted into thermal energy by the discharge resistor. The discharge circuit has a voltage converter between the high-voltage side of the capacitor and the discharge path. The voltage converter has a first semiconductor switch for discharging the capacitor clock-controlled such that an electrical output voltage at the discharge path constantly has a rated value so long as a capacitor voltage at the capacitor is above the rated value.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: May 8, 2018
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Wilhelm Berg, Tobias Pröll
  • Publication number: 20170077730
    Abstract: An electrical arrangement includes a high-voltage battery and a number of electrical utility arrangements connected to the battery via a main switch and a downstream back-up capacitor. A discharge circuit is connected to the capacitor and has a discharge path with an ohmic discharge resistor. In normal mode no current flows in the discharge resistor. Opening the main switch effects a transition from normal mode to special mode, while the discharge path is energized and electrical energy stored in the capacitor is converted into thermal energy by the discharge resistor. The discharge circuit has a voltage converter between the high-voltage side of the capacitor and the discharge path. The voltage converter has a first semiconductor switch for discharging the capacitor clock-controlled such that an electrical output voltage at the discharge path constantly has a rated value so long as a capacitor voltage at the capacitor is above the rated value.
    Type: Application
    Filed: September 13, 2016
    Publication date: March 16, 2017
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: WILHELM BERG, TOBIAS PRÖLL
  • Patent number: 8277736
    Abstract: The present invention relates to a fluidized bed reactor system made up of at least two fluidized bed reactors, comprising at least one main reactor (1) in the form of a circulating fluidized bed and a secondary reactor (2) in the form of a circulating fluidized bed, and also a particle line comprising a particle separator for transporting fluidized bed particles from the main reactor into the secondary reactor, characterized in that, in the lower region of the respective reactor, a line (10) connects the secondary reactor (2) to the main reactor (1) for transporting fluidized bed particles.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: October 2, 2012
    Assignee: Technische Universitat Wien
    Inventors: Tobias Proll, Philipp Kolbitsch, Johannes Bolhar-Nordenkampf, Hermann Hofbauer
  • Publication number: 20110120560
    Abstract: The present invention relates to a fluidized bed reactor system made up of at least two fluidized bed reactors, comprising at least one main reactor (1) in the form of a circulating fluidized bed and a secondary reactor (2) in the form of a circulating fluidized bed, and also a particle line comprising a particle separator for transporting fluidized bed particles from the main reactor into the secondary reactor, characterized in that, in the lower region of the respective reactor, a line (10) connects the secondary reactor (2) to the main reactor (1) for transporting fluidized bed particles.
    Type: Application
    Filed: August 14, 2008
    Publication date: May 26, 2011
    Inventors: Tobias Proll, Philipp Kolbitsch, Johannes Bolhar-Nordenkampf, Hermann Hofbauer