Patents by Inventor Stefan Krummrich

Stefan Krummrich 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).

  • Recirculation fuel cell
    Patent number: 10637081
    Abstract: A recirculation fuel cell device, which can be utilized on a submarine, may include a fuel cell with an anode side and a cathode side, wherein both the anode and cathode sides have input and output sides. The device may include a first inlet for oxygen and a second inlet for hydrogen. The device may further include a cathode-side connection between the output side of the cathode side and the input side of the cathode side, and an anode-side connection between the output side of the anode side and the input side of the anode side. A water separator may be disposed in the cathode-side connection, and a gas discharge valve for a continuous release of process gases may be disposed on the output side of the cathode side of the fuel cell. Operation of the device may involve recirculating an anode gas stream in its entirety.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: April 28, 2020
    Assignees: THYSSENKRUPP MARINE SYSTEMS GMBH, THYSSENKRUPP AG
    Inventors: Stefan Krummrich, Hans Pommer
  • RECIRCULATION FUEL CELL
    Publication number: 20180151896
    Abstract: A recirculation fuel cell device, which can be utilized on a submarine, may include a fuel cell with an anode side and a cathode side, wherein both the anode and cathode sides have input and output sides. The device may include a first inlet for oxygen and a second inlet for hydrogen. The device may further include a cathode-side connection between the output side of the cathode side and the input side of the cathode side, and an anode-side connection between the output side of the anode side and the input side of the anode side. A water separator may be disposed in the cathode-side connection, and a gas discharge valve for a continuous release of process gases may be disposed on the output side of the cathode side of the fuel cell. Operation of the device may involve recirculating an anode gas stream in its entirety.
    Type: Application
    Filed: May 18, 2016
    Publication date: May 31, 2018
    Applicants: THYSSENKRUPP MARINE SYSTEMS GMBH, thyssenkrupp AG
    Inventors: Stefan Krummrich, Hans Pommer