Daimler Chrysler Ag

Daimler Ag

Gerhard Konrad

Arnold Lamm

Heiner Kunckel

Rainer Autenrieth

Steffen Oliver Wieland

Markus Walter

Michael Niehues

Karsten Ledwig

Karl-Ernst Noreikat

Thomas Poschmann

Gerhard Berger

Jens Intorp

Sven Schnetzler

Josef Zieger

Robert Gerberich

Martin Heumos

Ulf-Michael Mex

Benjamin Steinhauser

Wolfgang Von Schwerin

Felix Sterk

A supply assembly and a fuel cell system having a supply assembly that demonstrates a cost-effective and/or resilient design in operation. A supply assembly for coupling to a fuel cell device is proposed, having a gas-to-gas humidifier that is designed and/or arranged in order to humidify the oxidation means A for the fuel cell device by means of the humidity from the exhaust gases B of the fuel cell device has an exhaust gas region and an oxidation means region that are separated from one another by a separation layer. The separation layer enables a transmission of the humidity from the exhaust gas region into the oxidation means region for humidification of the oxidation means A, wherein the gas-to-gas humidifier has a monolithic honeycomb structure for fowling the exhaust gas region and the oxidation means region.

Supply assembly for coupling to a fuel cell device and fuel cell system having the supply assembly

The invention relates to a method and a device for operating a fuel cell system () having a recirculation blower () disposed in a fuel circuit of the fuel cell system () by means of which the fuel (BS) exiting the fuel cell system () on the anode side is resupplied, said blower being driven by an air-driven drive turbine (), wherein the air-driven drive turbine () is impacted by compressed air (vL).

Method and device for operating a fuel cell system having a recirculation blower disposed in a fuel circuit of the fuel cell system

A fuel cell system includes at least one fuel cell and at least one air conveyor that conveys a process air flow to the fuel cell. At least one heat exchanger is also provided, through which the process air flow flows after the air conveyor and through which a cooling medium flow flows. A region with catalytically active material is arranged in the flow direction of the process air flow before or in the region of the heat exchanger. In addition a fuel can be fed to the region with the catalytically active material.

Fuel cell system having at least one fuel cell

The invention relates to devices for operating fuel cells. According to the invention, the two functions 'cooling' and 'humidification' are combined in a functional unit () to adjust the temperature of the air () supplied as the reaction medium and to humidify it. Membranes () are used that consist of a temperature-resistant material.

Device for treating reaction gases in fuel cells

An apparatus for humidifying a gas stream includes a humidifier device having at least one membrane permeable to water vapor. The gas stream and a humid gas stream flow through a humidifier device, being separated from one another by the at least one membrane. The apparatus includes at least one bypass line configured to route at least part of one of the gas stream and the humid gas stream so that it does not come into contact with the membrane. In addition a method for humidifying a gas stream, includes flowing the gas stream through a humidifier having a membrane permeable to water vapor, flowing a humid gas stream through the humidifier separated by the membrane, and routing at least a portion of one of the gas stream and the humid gas stream using a bypass line so that it does not come into contact with the membrane, and varying a quantity of the portion so as to set a predetermined dew point in the gas stream.

Device and method for humidifying a gas flow

A fuel-cell system, in particular for a vehicle, has a device for supplying the operating agents for a fuel cell and an electrical energy accumulator. The energy accumulator is composed of a battery and of an intermediate charge store which has a lower internal resistance than the battery. A switch is provided in the electrical connection between the energy accumulator and the fuel cell.

Fuel cell system

A fuel cell system includes a fuel cell unit having an anode side and a cathode side, anode-side feeding and outflow lines for the supply of fuel and removal of anode-side exhaust, and cathode-side feeding and outflow lines for the supply of oxygen and removal of cathode-side exhaust. The fuel cell system also includes means for electrically switching the fuel cell unit on and off depending on the available quantity of fuel.

Fuel cell system and method for operating the fuel cell system

A fuel cell system and method for supplying electrical devices with electric energy in a vehicle wherein, to increase the efficiency of the power generation, the fuel cell system is supplied with atmospheric oxygen from the compressed air system. Additionally, a compressed air reservoir or a compressor for ambient air is provided in order to supply the fuel cell system with atmospheric oxygen.

Fuel cell system and method for supplying electric power in a motor vehicle

An auxiliary power unit for an aircraft includes a gas turbine with a combustion chamber a compressor and a turbine. A compressor is coupled with the turbine, for generating compressed air. A fuel cell (BZ) is present for generating electric energy.

Auxiliary power unit for an aircraft

A fuel cell system includes at least one fuel cell which contains an anode space with an inlet-side anode feed and an outlet-side anode discharge; a cathode space with an inlet-side cathode feed and an outlet-side cathode discharge; and water separating devices arranged in the cathode discharge. According to the invention, the water separating devices contain a water separating membrane unit with a mixture space situated in the cathode discharge and a water collecting space separated therefrom by a water separating membrane.

Fuel cell system with cathode-side water separating devices

A method for the extraction of a liquid by condensation from a gas stream, wherein the gas stream contains the liquid mainly as fluid steam, includes expanding the gas stream in an expansion device and condensing at least a portion of the liquid downstream from the expansion device. The gas stream is then recompressed by at least one compressing device.

Growing community of inventors

Ulm, Germany

Gerhard Konrad