Patents by Inventor Christoph Maume

Christoph Maume 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: 7736775
    Abstract: A fuel cell system has a fuel cell stack composed of a plurality of fuel cells with a cathode side having a cathode inlet and a cathode outlet and an anode side having an anode inlet and an anode outlet. It is possible for a hydrogen-containing medium to be fed to the anode side and an oxygen-containing medium to be fed to the cathode side. It is further possible for at least some of the anode exhaust gas to be fed to the cathode side. An anode-side exhaust-gas line opens into an opening in a feed line for the oxygen-containing medium on a suction side of a compressor that feeds the oxygen to the cathode.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: June 15, 2010
    Assignee: Volkswagen AG
    Inventors: Torsten Schwarz, Sven Schmitz, Christoph Maume
  • Publication number: 20060105224
    Abstract: A fuel cell system has a fuel cell stack composed of a plurality of fuel cells with a cathode side having a cathode inlet and a cathode outlet and an anode side having an anode inlet and an anode outlet. It is possible for a hydrogen-containing medium to be fed to the anode side and an oxygen-containing medium to be fed to the cathode side. It is further possible for at least some of the anode exhaust gas to be fed to the cathode side. An anode-side exhaust-gas line opens into an opening in a feed line for the oxygen-containing medium on a suction side of a compressor that feeds the oxygen to the cathode.
    Type: Application
    Filed: November 16, 2005
    Publication date: May 18, 2006
    Inventors: Torsten Schwarz, Sven Schmitz, Christoph Maume
  • Publication number: 20050037243
    Abstract: The air supplied to a fuel cell module is pumped with a compressor that has a moisturizing function in order to provide sufficiently moisturized oxidant. The compressor operates at very low pressure and the moisturization corresponds approximately to the dew point at the cooling water outlet temperature. If adequate moisturizing of the oxidant is no longer occurring at the defined low pressure, the input pressure is increased and the oxidant output is choked in a regulated manner. A corresponding fuel cell assembly with a polymer electrolyte membrane, i.e., a PEM fuel cell system includes the corresponding pump compressor and a controlled throttle valve at the exit side.
    Type: Application
    Filed: June 14, 2004
    Publication date: February 17, 2005
    Inventors: Olaf Dubel, Gert Hinsenkamp, Jan-Kasper Kuipers, Christoph Maume, Walter Preidel, Walter Stuhler, Alfred Weiss