Robert Boschgmbh

Aisin Seiki Kabushiki Kaisha

Wolfgang Friede

Klaus Krieger

Frank Baumann

Jens Intorp

Sebastian Maass

Takatsugu Inoue

Florian Wahl

Koichi Kuwaba

Uwe Limbeck

Gunter Wiedemann

Arthur Schaefert

Raphaelle Laure Satet

Pedro Da Silva

Hiroki Ohkawara

Albrecht Schaefer

Christian Herbert

Toshiyuki Sato

Birgit Thoben

Corinna Laipple

Thomas Eisen

Frank-Ulrich Fink

Gerold Kleineikenscheidt

Satoshi Endo

Takeshi Kitamura

Yoshiyuki Nakamura

Shinya Koide

A method and device for registering electrical consumption and generation in an energy management network has at least one energy management unit, and, in a power distribution system, a number of electrical consumers or consumer groups and a number of generators are interconnected with the aid of assigned components in the form of switching elements and energy meters, which are influenced or analyzed by the energy management unit, as a function of the purchase price and the feed-in remuneration.

Method and device for registering electrical consumption and generation

The invention relates to a fuel cell system () having at least one or more fuel cells (), wherein the fuel cell () extends between a first cell end () and a second cell end () in a tubular shape, and wherein the fuel cell () is mechanically received with the first cell end () on an inflow distributor unit (), and wherein a fuel gas flows through the fuel cell (), the gas entering the first cell end () and exiting one of the cell ends () as exhaust gas. According to the invention, means () are provided which suction at least a part of the exhaust gas exiting the fuel cell () and feed said gas to the inflow distributor unit () for recirculation.

Fuel cell system having improved fuel gas circulation

The subject of the present invention relates to a method and a protector for reducing degradation of fuel cell systems at transitions in operation, in particular at electrodes or catalysts in a combustion chamber of a stack of a PEM fuel cell system in startup and shutoff events of the fuel cell system. A switchable material delivery device is provided for varying a delivery of material to the fuel cell system, so that a transition from a first state of the fuel cell system to a second state of the fuel cell system can be initiated, such that a potential difference between different electrodes can be effected. At least one reducing mechanism is provided for reducing the potential difference between the different electrodes during the transition, in which the reducing mechanism includes at least one compensating device for an unequal gas distribution by reducing the proportions causing degradation, to reduce degradation. The compensation device includes at least one short-circuiting unit, with which the different electrodes can be short-circuited, in order to reduce the potential difference.

Method and device for improving the service life of a fuel cell at transitions in operation

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Weinstadt, Germany

Wolfgang Friede