Robert Boschgmbh

Juergen Hackenberg

Harald Bauer

Alexander Reitzle

Norman Krings

Joerg Heyse

Detlef Nowak

Guenter Dantes

Gottfried Flik

Michael Lingner

Armin Glock

Martina Bubrin

Herbert Gruhn

Frank Schatz

Helerson Kemmer

Peter Rehbein

Stephan Leuthner

Gilbert Moersch

Wilfried Aichele

Michael Lindner

Ronald Glas

Frank Miller

Jochen Straehle

Georg Zimmermann

Juergen Bauer

Josef Weber

Tim Bergmann

Ralf Trutschel

Silvan Hippchen

Thomas Schittny

Leonore Glanz

Claudio Baldizzone

Lutz Baumgaertner

Tina Hirte

Petra Heinbuch

Franz Wetzl

Alexander Eifert

Christoph Roland Hoelzl

Reinhard Dimke

Georg Ketteler

Alexander Redlich

Petra Kanters

Lothar Henneken

Wilfried Reschnar

Martin Zimmer

Claus Westphal

Ruediger Bohnsack

Marcus Rinke

Stephan Borges

Benjamin Walther

Ingo Zeitler

Ulrike Mock

Peter Lindner

Juergen Stahl

The invention relates to a bipolar plate () for a fuel cell, comprising a bipolar plate substrate () composed of stainless steel and comprising a coating (), which is applied to the bipolar plate substrate (), for increasing the corrosion resistance of the bipolar plate (). According to the invention, the coating () is of single- or multi-layer design and has at least one layer () composed of a metal matrix () with non-passivating dispersoid particles () incorporated therein. The invention further relates to a fuel cell having at least one bipolar plate () according to the invention.

Bipolar plate for a fuel cell, fuel cell having a bipolar plate

A coating device for coating components, in particular for nickel-plating spark plug housings. The coating device includes: a housing having an outer anode that is designed to receive the component, an inner anode that can be introduced into a through-opening of the component, and a voltage-generating device, the voltage-generating device being designed to generate a first voltage between the outer anode and the component, as well as a second voltage between the inner anode and the component. The housing has an inlet and an outlet for introducing and discharging a process medium into or out of the housing.

Coating apparatus for coating components

An electrode material () for a fuel cell (), comprising a planar body () made of an electrically conductive foam having an open and continuous porosity for at least one operating medium of the fuel cell (), wherein the planar body () has a top side () and a bottom side (), and wherein the thickness () of the material across all points (') on the surface of the top side (), measured in each case between a point (&#x2032;) on the surface of the top side () and the point (&#x2032;) opposite this point (&#x2032;) on the surface of the bottom side (), varies by at least 10%. An electrode () for a fuel cell (), comprising a planar body () made of an electrically conductive foam having an open and continuous porosity for at least one operating medium of the fuel cell (), wherein the planar body () has a top side () and a bottom side (), and wherein the top side (), and/or the bottom side (), has regions () in which the porosity of the planar body () is reduced by at least 10%. A fuel cell () comprising the electrode (). A method for production.

Electrode material and electrode for operating-medium distribution in a fuel cell

A housing for a spark plug. The housing includes a bore along the longitudinal axis X of the housing, as the result of which the housing has an outer side and an inner side, and an electroplated or chemically applied nickel-containing protective layer situated on at least one portion of the outer side of the housing and a sealing layer situated on the nickel-containing protective layer. The sealing layer contains silicon. A first intermediate layer is applied between the housing and the nickel-containing protective layer and/or a second intermediate layer is applied between the nickel-containing protective layer and the sealing layer and/or a cover layer is applied on the sealing layer. The sealing layer may be free of chromium.

Spark plug housing including an electroplated or a chemically applied nickel-containing protective layer and a silicon-containing sealing layer, and a spark plug including this housing, and method for manufacturing this housing

The invention relates to a method for producing a flow plate () for a fuel cell (), comprising a plurality of gas guide webs () and at least one electrically conductive and porous layer unit () arranged on the gas guide webs (). It is proposed that a geometry and/or a structure of the layer unit () is produced during a material application onto the gas guide webs ().

Method for producing a flow plate for a fuel cell

An electrode that includes at least one current collector having a flat configuration and to which at least one arrester is attached, and at least one active material foil. The at least one active material foil is situated on a first surface of the current collector, and protrudes beyond the current collector on all sides along its edges to form an overhang of the active material foil past the outer boundary of the current collector on all sides.

Electrode including an increased active material content

An anode material for a galvanic element, in particular a lithium-ion cell. To improve the current density and thermal stability of galvanic elements, the anode material includes nanofibers made of a metal, a metal alloy, a carbon-metal oxide composite material, a carbon-metal alloy composite material, a conductive polymer, a polymer-metal composite material, a polymer-metal alloy composite material or a combination thereof. The nanofibers may be in the form a nanofiber netting, a nonwoven and/or a network and may be connected to a current conductor.

Anode material including nanofibers for a lithium ion cell

A device for wet-chemical treatment of substrates includes: an accommodation device for a substrate and a process medium, the substrate having a treatment side in operative connection with the process medium; a fluid guidance element, having a specified surface texture, housed in the accommodation device, the specified surface texture being configured to provide a guidance of the process medium along the specified surface texture, the specified surface texture being positioned lying opposite and at a predetermined fixed recess at a distance from the treatment side of the substrate; and the process medium being moved in the intervening space between the specified surface texture of the fluid guidance element and the treatment side of the substrate.

Device for the homogeneous wet-chemical treatment of substrates

A fuel cell, having a first electrode, a second electrode, and a membrane element, in which the membrane element is disposed between the first electrode and the second electrode. At least one of the electrodes has a flow field plate and at least one flow conduit, through which a reactant can be conducted, extends in at least one outer surface of the flow field plate. The flow field plate has at least one microreaction chamber, and the microreaction chamber is disposed in the outer surface and on the flow conduit. A catalyst is disposed on at least a part of the microreaction chamber in such a way that the catalyst has contact simultaneously with the membrane element and the inflowing reactant.

Fuel cell flow field plate having catalyst disposed in microreaction chambers, and method for producing thereof

In a method for setting the distance between an electrode and a workpiece in electrochemical metal working, the electrode is moved by an oscillating drive system, in which an acceleration signal of the oscillating drive system is picked up, the acceleration signal is divided into individual sections, characteristic magnitudes of the individual sections of the acceleration signal are determined, the characteristic magnitudes of the individual sections are compared to one another and the distance of the electrode from the workpiece is adjusted in response to a deviation of the characteristic magnitudes from the specified values. A device for carrying out the method includes an electrode, that is connected to a drive axis, an oscillating motion being able to be transferred to the electrode via the drive axis. A sensor is situated on the drive axis which picks up acceleration signals.

Method for setting a distance between an electrode and a workpiece

The invention relates to a fuel cell, having a first electrode, a second electrode, and a membrane element, in which the membrane element is disposed between the first electrode and the second electrode. At least one of the electrodes has a flow field plate and at least one flow conduit, through which a reactant can be conducted, extends in at least one outer surface of the flow field plate. According to the invention, it is provided that the flow field plate has at least one microreaction chamber, and the microreaction chamber is disposed in the outer surface and on the flow conduit. A catalyst is disposed on at least a part of the microreaction chamber in such a way that the catalyst has contact simultaneously with the membrane element and the inflowing reactant.

Flow cell and flow plate having catalyst disposed in microreaction chambers

A fuel supply system, having a housing, in which a pistonlike element is disposed longitudinally displaceably in a bore and is guided sealingly in the bore by a guide portion. On one end, the guide portion adjoins a first fuel-filled chamber, and on its other end it adjoins a second fuel-filled chamber. At least one recess extending at least approximately in the circumferential direction is embodied in the guide portion of the pistonlike element and extends over at least part of the circumference of the pistonlike element and, viewed in the longitudinal direction of the pistonlike element, has an asymmetrical cross section.

Fuel supply for internal combustion engines

A piezoceramic actuator includes a monolithic stack of thin piezoceramic films having internal electrodes arranged between the films, and rail-like elements electrochemically shaped onto the internal electrodes on outer sides of the stack. The internal electrodes can thereby be interconnected, via a suitable conductive element, in electrically conductive fashion at a certain distance from the side edges of the piezoceramic films so that these films form a continuous planar electrically conductive ribbon.

Electrode contact for a piezoceramic actuator and method for producing same

A method for producing a component out of stacked plates ( ) soldered to one another, into at least some of which recesses ( ) are made, is proposed, in which at least one solder layer ( ) is provided between the plates ( ) for a solder diffusion process. According to the invention, the plates ( ), with solder layers ( ) between them, are stacked on one another and compressed in the cold state before the solder diffusion process. With this provision, the use of complicated pressing tools in the actual solder diffusion process is avoided.

Method for producing a structural member from plates stacked on top of each other and soldered together

A swirl disk is composed of at least one metallic material, and is configured as having at least one intake area and at least one outlet orifice, the at least one outlet orifice being introduced in a lower base layer, and having at least two swirl channels emptying into a swirl chamber, the swirl chamber being provided in a central swirl-producing layer. An upper layer is configured as a cover layer, which over its entire cross-sectional surface represents a closed layer without orifice contours. All the layers of the swirl disk are directly built up on top of each other using electroplating metal deposition (multilayer electroplating). The swirl disk is suitable for a use in a fuel injection valve, in particular in a high-pressure injection valve for directly injecting the fuel into a combustion chamber of a mixture-compressing, external-ignition internal combustion engine.

Swirl disk and fuel injection valve with swirl disk

Growing community of inventors

Sachsenheim, Germany

Juergen Hackenberg