Patents by Inventor Michael Braunecker

Michael Braunecker 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).

  • Publication number: 20240258545
    Abstract: The invention relates to a fuel cell assembly having a plurality of fuel cells amalgamated electrically and mechanically in a fuel cell stack, further including a residual gas treatment device for hydrogen-containing and oxygen-containing residual gases of the fuel cells, wherein the residual gas treatment device includes a recombination fuel cell with catalyst and membrane that is led via a power circuit separate from the fuel cells, and to a method for treating hydrogen-containing and oxygen-containing residual gases from fuel cells.
    Type: Application
    Filed: July 11, 2022
    Publication date: August 1, 2024
    Inventors: Fabian Straub, Michael Braunecker, Torsten Brandt
  • Publication number: 20240011935
    Abstract: A device and method for determining the purity of hydrogen, includes a measurement fuel cell cascade having at least one measurement fuel cell, a hydrogen inlet and a hydrogen outlet, a cell voltage monitoring unit that is electrically connected to the measurement fuel cell stack and monitors a voltage output of the measurement fuel cell stack, and a valve located downstream of the measurement fuel cell cascade in the direction of flow of the hydrogen for allowing dead-end operation of the measurement fuel cell cascade. The device for determining the purity of hydrogen further includes an evaluation unit that is connected to the cell voltage monitoring unit and receives a signal corresponding to a voltage output of the measurement fuel cell cascade from the cell voltage monitoring unit as a function of time, wherein the evaluation unit is designed to determine the purity of the hydrogen from the received signal.
    Type: Application
    Filed: October 26, 2021
    Publication date: January 11, 2024
    Applicant: Siemens Energy Global GmbH & Co. KG
    Inventors: Torsten Brandt, Michael Braunecker, Stefan Siedler
  • Patent number: 11791485
    Abstract: A method of examining a fuel cell by means of a cyclic voltammetry analysis, wherein the cyclic voltammetry analysis is used to ascertain a gas composition in the fuel cell. The fuel cell has a first gas space for a first reactant and a second gas space for a second reactant, where no reactant is supplied at least to one of the two gas spaces, especially to either gas space, during the cyclic voltammetry analysis. The cyclic voltammetry analysis is used to ascertain a concentration of hydrogen in the gas spaces.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: October 17, 2023
    Assignee: Siemens Energy Global GmbH & Co. KG
    Inventors: Michael Braunecker, Andreas Reiner
  • Publication number: 20230124648
    Abstract: A bipolar plate for an electrochemical cell, includes a flow space arranged between a first and a second plate element and has a flow inlet and a flow outlet for a coolant flowing through the flow space. Each plate element has a contact plane for contacting the other plate element and, between the flow inlet and the flow outlet, a plurality of elevations protrude from the contact plane and face away from the other plate element. The elevations have openings facing the contact plane. First flow channels are formed through the openings in the elevations by the elevations of the two plate elements being offset from one another. Each elevation at least partially overlaps at least one elevation of the other plate element. A direction-dependent flow resistance is set in the first flow channels of the bipolar plate.
    Type: Application
    Filed: February 18, 2021
    Publication date: April 20, 2023
    Applicant: Siemens Energy Global GmbH & Co. KG
    Inventors: Torsten Brandt, Michael Braunecker, Frank Bärnreuther, Arno Mattejat
  • Publication number: 20220263107
    Abstract: A method of examining a fuel cell by means of a cyclic voltammetry analysis, wherein the cyclic voltammetry analysis is used to ascertain a gas composition in the fuel cell. The fuel cell has a first gas space for a first reactant and a second gas space for a second reactant, where no reactant is supplied at least to one of the two gas spaces, especially to either gas space, during the cyclic voltammetry analysis. The cyclic voltammetry analysis is used to ascertain a concentration of hydrogen in the gas spaces.
    Type: Application
    Filed: April 17, 2020
    Publication date: August 18, 2022
    Applicant: Siemens Energy Global GmbH & Co. KG
    Inventors: Michael Braunecker, Andreas Reiner