Patents by Inventor Matthew Kenneth Hortop

Matthew Kenneth Hortop 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: 10243224
    Abstract: The invention relates to a method for switching off a fuel cell system (100) having a fuel cell stack (10), that has anode chambers (13) and cathode chambers (12), and a cathode supply (20) having a cathode supply path (21) for supplying an oxygenated cathode operating gas into the cathode chambers (12), a compressor (23) arranged in the cathode supply path (21) and a cathode exhaust path (22) for discharging a cathode exhaust gas from the cathode chambers (12). The method comprises the steps of: (a) Maintenance of the cathode chambers (12) under excess pressure while preventing a flow of cathode operating gas through the cathode chambers (12) while keeping the cathode operating gas that is present in the cathode chambers (12) oxygen-depleted; (b) Expansion of the oxygen-depleted cathode operating gas present in the cathode chambers (12) via the cathode supply path (31) [sic] and/or the cathode exhaust path (22), and (c) Separation of the cathode chambers (12) from the environment.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: March 26, 2019
    Assignee: Audi AG
    Inventors: Torsten Schwarz, Johannes Müller, Matthew Kenneth Hortop
  • Publication number: 20170331128
    Abstract: The invention relates to a method for switching off a fuel cell system (100) having a fuel cell stack (10), that has anode chambers (13) and cathode chambers (12), and a cathode supply (20) having a cathode supply path (21) for supplying an oxygenated cathode operating gas into the cathode chambers (12), a compressor (23) arranged in the cathode supply path(21) and a cathode exhaust path (22) for discharging a cathode exhaust gas from the cathode chambers (12). The method comprises the steps of: (a) Maintenance of the cathode chambers (12) under excess pressure while preventing a flow of cathode operating gas through the cathode chambers (12) while keeping the cathode operating gas that is present in the cathode chambers (12) oxygen-depleted; (b) Expansion of the oxygen-depleted cathode operating gas present in the cathode chambers (12) via the cathode supply path (31) [sic] and/or the cathode exhaust path (22), and (c) Separation of the cathode chambers (12) from the environment.
    Type: Application
    Filed: November 9, 2015
    Publication date: November 16, 2017
    Inventors: Torsten SCHWARZ, Johannes MÜLLER, Matthew Kenneth HORTOP
  • Patent number: 9647281
    Abstract: A method for operating a fuel cell device, the fuel cell device having a fuel cell, and a motor vehicle having a drive system and the fuel cell device are disclosed. In order to avoid energy which has been made available by the fuel cell device being used merely to heat the fuel cell and therefore not being available for a consumer, there is provision according to the invention that the energy to be stored is limited as a function of the ambient temperature and the fuel cell device has for this purpose an ambient temperature-determining unit and a charge limiter which is connected to the ambient temperature-determining unit in a control signal-transmitting fashion.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: May 9, 2017
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Peter Bach, Matthew Kenneth Hortop
  • Publication number: 20150318591
    Abstract: The invention relates to a method for operating a fuel cell device (10), a fuel cell device (10) having a fuel cell (11), and a motor vehicle (20) having a drive system and a fuel cell device (10). In order to avoid energy which has been made available by the fuel cell device (10) being used merely to heat the fuel cell (11) and therefore not being available for a consumer, there is provision according to the invention that the energy to be stored is limited as a function of the ambient temperature and the fuel cell device (10) has for this purpose an ambient temperature-determining unit (17) and a charge limiter (16) which is connected to the ambient temperature-determining unit (17) in a control signal-transmitting fashion.
    Type: Application
    Filed: April 30, 2015
    Publication date: November 5, 2015
    Inventors: Peter BACH, Matthew Kenneth Hortop