Patents by Inventor Detlef zur Megede

Detlef zur Megede 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: 8998024
    Abstract: A device that stores a low molecular gas, such as hydrogen (H2), under high pressure includes having an inner shell and at least one outer sleeve surrounding the inner shell. The region between the inner shell and the outer sleeve is connected via at least one valve with a backflow prevention capability to the region surrounded by the inner shell. The valve is thereby formed so that low molecular gas which has diffused through the inner shell can flow back into the inner shell when there are suitable pressure conditions.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: April 7, 2015
    Assignee: Daimler AG
    Inventors: Jens Franzen, Gerardo Friedlmeier, Kai Kioschis, Detlef Zur Megede
  • Publication number: 20130174920
    Abstract: A device that stores a low molecular gas, such as hydrogen (H2), under high pressure includes having an inner shell and at least one outer sleeve surrounding the inner shell. The region between the inner shell and the outer sleeve is connected via at least one valve with a backflow prevention capability to the region surrounded by the inner shell. The valve is thereby formed so that low molecular gas which has diffused through the inner shell can flow back into the inner shell when there are suitable pressure conditions.
    Type: Application
    Filed: July 26, 2011
    Publication date: July 11, 2013
    Applicant: Daimler AG
    Inventors: Jens Franzen, Gerardo Friedlmeier, Kai Kioschis, Detlef Zur Megede
  • Patent number: 7378066
    Abstract: To carry out a heterogeneously catalyzed reaction, a reaction mixture comprising hydrocarbon and water is fed onto a catalyst that is produced by compressing at least one catalyst powder into a highly compressed layer which forms a shaped body. The reaction mixture is pressed through the catalyst layer with a pressure drop.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: May 27, 2008
    Assignee: NuCellSys GmbH
    Inventors: Martin Schuessler, Tomas Stefanovski, Detlef Zur Megede
  • Patent number: 7152394
    Abstract: In a system and method for the reduction of nitrogen oxides in the exhaust of an internal combustion engine, the exhaust line of the internal combustion engine contains a DeNOx catalytic converter, in which the nitrogen oxides are reduced by means of hydrogen that is produced on-board the vehicle. The DeNOx catalytic converter is incorporated into a temperature-controlled heat exchanger, allowing the DeNOx catalytic converter to be operated within a desired temperature range, thereby improving the level of conversion.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: December 26, 2006
    Assignee: NuCellSys GmbH
    Inventors: Uwe Benz, Berthold Keppeler, André Martin, Peter Schuerstedt, Detlef zur Megede
  • Patent number: 7051518
    Abstract: A system to supply hydrogen-rich fuel to an internal combustion engine, whereby a hydrogen-rich gas is produced from a liquid raw fuel by a hydrogen generator. The exhaust line of the internal combustion engine contains an exhaust purification system, such as a DeNOx catalytic converter, which is at least temporarily supplied with hydrogen-rich gas through a bypass line. In addition, the exhaust line is in thermal contact with the hydrogen generator in order to recover thermal energy.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: May 30, 2006
    Assignee: NuCellSys GmbH
    Inventors: Uwe Benz, Guenther Dietrich, Detlef zur Megede
  • Publication number: 20060059897
    Abstract: A system to supply hydrogen-rich fuel to an internal combustion engine, whereby a hydrogen-rich gas is produced from a liquid raw fuel by a hydrogen generator. The exhaust line of the internal combustion engine contains an exhaust purification system, such as a DeNOx catalytic converter, which is at least temporarily supplied with hydrogen-rich gas through a bypass line. In addition, the exhaust line is in thermal contact with the hydrogen generator in order to recover thermal energy.
    Type: Application
    Filed: July 7, 2005
    Publication date: March 23, 2006
    Inventors: Uwe Benz, Guenther Dietrich, Detlef zur Megede
  • Patent number: 6969493
    Abstract: A process for generating a high-hydrogen, low-carbon monoxide gas comprises generating a product gas in a gas generating device. The product gas contains hydrogen and carbon monoxide that are generated from catalytic water vapor reforming of a water/fuel mixture and/or from partial oxidation of an oxygen/fuel mixture. In a gas purification stage, the carbon monoxide fraction in the product gas is reduced by selective CO oxidation on an oxidation catalyst. During a starting phase, oxygen is admixed to the supplied fuel and the flow direction is reversed such that the flow first takes place through the gas purification stage and only then through the gas generating device.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: November 29, 2005
    Assignee: Ballard Power Systems AG
    Inventors: Martin Schuessler, Barbara Strobel, Detlef zur Megede
  • Publication number: 20050126158
    Abstract: In a system and method for the reduction of nitrogen oxides in the exhaust of an internal combustion engine, the exhaust line of the internal combustion engine contains a DeNOx catalytic converter, in which the nitrogen oxides are reduced by means of hydrogen that is produced on-board the vehicle. The DeNOx catalytic converter is incorporated into a temperature-controlled heat exchanger, allowing the DeNOx catalytic converter to be operated within a desired temperature range, thereby improving the level of conversion.
    Type: Application
    Filed: July 19, 2002
    Publication date: June 16, 2005
    Applicant: Ballard Power Systems AG
    Inventors: Uwe Benz, Berthold Keppeler, Andre Martin, Peter Schuerstedt, Detlef zur Megede
  • Patent number: 6830675
    Abstract: A method for removing carbon monoxide from a gas stream, in which the gas stream loaded with CO is guided through a device, and the CO is removed from the gas stream through adsorption on the working electrode. As a function of an electrical voltage between the working electrode and the counter electrode, or between the working electrode and the reference electrode, an electrode cleaning mode is enabled by triggering a current flow between the working electrode and the counter electrode, and the CO adsorbed on the working electrode is oxidized to CO2.01.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: December 14, 2004
    Assignee: Ballard Power Systems AG
    Inventor: Detlef Zur Megede
  • Patent number: 6660685
    Abstract: To carry out a heterogeneously catalysed reaction, a reaction mixture comprising hydrocarbon and water is fed onto a catalyst that is produced by compressing at least one catalyst powder into a highly compressed layer which forms a shaped body. The reaction mixture is pressed through the catalyst layer with a pressure drop.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: December 9, 2003
    Assignee: Ballard Power Systems AG
    Inventors: Martin Schüssler, Tomas Stefanovski, Detlef zur Megede
  • Publication number: 20030203814
    Abstract: To carry out a heterogeneously catalysed reaction, such as for example the generation of hydrogen from hydrocarbons or alcohol, in particular methanol, in which a reaction mixture comprising hydrocarbon and water is fed onto a catalyst, a catalyst is proposed which is produced by compressing at least one catalyst powder into a highly compressed layer which forms a shaped body, it being possible to press the reaction mixture through the catalyst layer with a pressure drop.
    Type: Application
    Filed: May 15, 2003
    Publication date: October 30, 2003
    Applicant: Ballard Power Systems, Inc.
    Inventors: Martin Schussler, Tomas Stefanovski, Detlef Zur Megede
  • Patent number: 6559551
    Abstract: A starter device, preferably for cold-starting, for fuel cell systems, including a current generation system, for generating electrical energy, and a gas generation system, for generating H2-rich gas for the current generation system. An internal-combustion engine generates mechanical energy, which can be connected to an air compressor for supplying air to the gas generation system via a drive shaft.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: May 6, 2003
    Assignee: Ballard Power Systems AG
    Inventors: Klaus Graage, Detlef Zur Megede
  • Patent number: 6537691
    Abstract: A container for receiving an operating medium for the operation of fuel cells has an inlet for a medium, a first outlet and a second outlet. The container is divided by at least one permeable component into at least an inlet-side interior space, and an interior space which is remote from the inlet. The first outlet is arranged in the inlet-side interior space and the second outlet is arranged in the interior space which is remote from the inlet.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: March 25, 2003
    Assignee: Ballard Power Systems AG
    Inventors: Thomas Poschmann, Detlef Zur Megede
  • Patent number: 6517805
    Abstract: An apparatus for producing hydrogen from hydrocarbons or alcohol, particularly methanol, by feeding a reaction mixture comprising a hydrocarbon or alcohol and water onto a catalyst. The catalyst is formed by compressing at least one catalyst powder into a compressed layer to form a shaped body. The reaction mixture flows under pressure through the catalyst layer while the pressure drops. Furthermore, the apparatus is suitable for a use in a hydrogen shift phases for reducing carbon monoxide, in carbon monoxide oxidizers and catalytic burners. A process for producing the catalyst is also disclosed.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: February 11, 2003
    Assignee: Ballard Power Systems AG
    Inventors: Martin Schuessler, Tomas Stefanovski, Detlef zur Megede
  • Publication number: 20030014865
    Abstract: A process for producing a coated, structured heat exchanger plate for a reactor in a fuel cell system comprises application of a catalytic component in at least one layer by means of pad printing, exclusively in the recesses and/or the flanks of the heat exchanger plate.
    Type: Application
    Filed: June 14, 2002
    Publication date: January 23, 2003
    Inventors: Dagmar Nowak, Thomas Roeser, Michael Schmidt, Detlef Zur Megede
  • Publication number: 20030010399
    Abstract: An arrangement for supplying mobile consumers which have an on-board power generation system, and a fuel tank for storing a fuel for operating the power generation system, includes a stationary discharge device for transferring fuel from a stationary fuel source to the fuel tank. The discharge device includes a supply unit for supplying fuel to the consumer, and the consumer has corresponding holding unit with a tank connection for holding fuel. The discharge device also has electricity consuming devices, and the holding means is also equipped with a corresponding means for electricity emission.
    Type: Application
    Filed: June 14, 2002
    Publication date: January 16, 2003
    Inventors: Peter Friebe, Detlef Zur Megede
  • Publication number: 20020134663
    Abstract: A method for removing carbon monoxide from a gas stream, in which the gas stream loaded with CO is guided through a device, and the CO is removed from the gas stream through adsorption on the working electrode. As a function of an electrical voltage between the working electrode and the counter electrode, or between the working electrode and the reference electrode, an electrode cleaning mode is enabled by triggering a current flow between the working electrode and the counter electrode, and the CO adsorbed on the working electrode is oxidized to C0201.
    Type: Application
    Filed: March 11, 2002
    Publication date: September 26, 2002
    Inventor: Detlef Zur Megede
  • Patent number: 6447736
    Abstract: A system for the water vapor reforming of a hydrocarbon includes a modular reactor unit of the plate stack and/or tube bundle type that, in an integrated manner, contains an evaporator, a prereforming unit, a main reformer, a CO removal unit and a catalytic burner unit. The evaporator and the main reformer are in a thermal contact with the catalytic burner unit and, the prereforming unit is in a thermal contact with the CO removal unit.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: September 10, 2002
    Assignee: Xcellsis GmbH
    Inventors: Rainer Autenrieth, Stefan Boneberg, Andreas Christen, Dietmar Heil, Barbara Strobel, Steffen Wieland, Detlef zur Megede
  • Patent number: 6432378
    Abstract: A process for operating a methanol reforming system in which, in the reforming reaction operation, methanol is reformed in a methanol reforming reactor using a methanol reforming catalyst. The reforming reaction operation is interrupted periodically for catalyst reactivation phases during which the methanol reforming catalyst whose catalytic activity decreases in the reforming reaction operation is treated in an activity-regenerating manner. The process may be used in fuel-cell-driven motor vehicles for generating hydrogen for the fuel cells from methanol carried along in the liquid state.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: August 13, 2002
    Assignee: Xcellsis GmbH
    Inventors: Rainer Autenrieth, Andreas Christen, Martin Schuessler, Detlef zur Megede
  • Patent number: 6428758
    Abstract: A reformation reactor, especially suitable for the reformation of methanol, includes a reaction zone in which a reformation catalyst is located and to which a gas mixture to be reformed can be supplied. The reactor includes an evaporator body that adjoins the reaction zone in a flush manner. The evaporator body has a porous, heat-conducting structure for providing the gas mixture to be reformed by mixing and evaporating the gas mixture components supplied to it and for two-dimensionally distributed supply of the gas mixture thus prepared and into the reaction zone. A starting phase can be provided for the operation of the reactor, in which the evaporator body is wetted by a fuel liquid film and, following the addition of oxygen, a flammable mixture results in the reaction zone that is catalytically oxidized. The evaporator body can be heated to operating temperature by the resultant combustion heat, after which a switch can be made to continuous operation of the reformation reactor.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: August 6, 2002
    Assignee: Xcellsis GmbH
    Inventors: Martin Schuessler, Detlef Zur Megede