Robert Boschgmbh

Thomas Schittny

Gottfried Flik

Alexandra Jauernig

Frank Schatz

Heinz Fuchs

Dietmar Hahn

Ronald Glas

Armin Glock

Joerg Heyse

Detlef Nowak

Guenter Dantes

Armin Schuelke

Christian Doering

Juergen Hackenberg

Michael Mettner

Horst Magenau

Ralf Trutschel

Petra Heinbuch

Elke Krauss

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

Micromechanical component and a method for its production having vertically arranged layers made of metallic materials, with the layers adhering firmly to one another at least in part. The layers of the micromechanical component are attached to each other via intermediate layers, with the intermediate layers being at least one sputtered layer which can be applied in the form of a metallic start plating to the underlying layer, which includes metallic and nonmetallic areas, and to which an upper metallic electroplated layer can be applied. Upon their completion, the layers yield the micromechanical component with layers that adhere to one another or layers which can be partially detached from one another.

Micromechanical component production method

The microvalve includes an electromagnetic drive and of a multilayer lower valve part, which are permanently bonded to one another and are manufactured separately from one another. The lower valve part includes at least one armature and a valve-closure element, which are axially movable, as well as a housing which at least partially surrounds this axially movable component of the microvalve. The layers of the lower valve part are built up one upon the other by means of (multilayer) electrodeposition. The microvalve can be used in fuel-injection systems of internal combustion engines.

Microvalve and method for manufacturing a microvalve

Multi-layer microvalve having integral closure, membrane and pressure

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Fulda, Germany

Thomas Schittny