Robert Boschgmbh

Zf Lenksysteme Gmbh

Wolf-Ingo Ratzel

Christian Ohl

Juergen Kurle

Vaclav Straus

Rainer Haeberer

Johannes Meiwes

Bruno Hezel

Michael Gerlach

Guenter Krenz

Werner Bernhard

Oliver Hetzel

Christian Lorenz

Markus Ulrich

Bernd Beiermeister

Olaf Beutler

Gerold Kohlberger

Jochen Kaesser

Wolfram Hasert

Joachim Fischer

Zdenek Frcek

Richard Kaisser

Bjoern Billep

Alexander Ziegler

Guenther Krenz

Achim Ottenstein

Reinhold Schuster

Vlatko Babic

Roland Schreiber

Bjoern Billepp

The invention relates to a sensor arrangement for determining a tank fill level of a liquid, especially a reducing agent for removing nitrogen from the exhaust gases of an internal combustion engine, which liquid is contained in a tank, at least two electrically conductive measuring electrodes being at least partially embedded in a carrier that is produced of an electrically non-conductive material. The sensor arrangement includes a temperature sensor, especially a resistor with negative temperature coefficient being used as a temperature sensor, which is integrated into the carrier.

Sensor arrangement for determining a tank fill level, and method for producing it

A method for manufacturing a micromechanical component is described, the micromechanical component having a medium. The medium has settable and changeable volume-elastic properties and generally completely encloses a sensor module and/or a module housing. The medium preferably has a low-pass response.

Micromechanical component having a volume-elastic medium

An injection-molded part according to the invention has at least one thermoplastic inlay part and one thermoplastic composite element injection-molded onto the inlay part. The at least one inlay part on its boundary face with the composite element has at least one raised feature for material-locking sealing between the inlay part and the composite element. The raised feature protrudes with a height Hinto the composite element and forms a narrowed cross section in the composite element having a height H. The at least one raised feature, on its flux leading end, has a first chamfer, and the ratio of the height of the narrowed cross section to the height of the raised feature is in the range between 0.6 and 0.9.

Multi-component injection-molded part with material-locking sealing

Method for manufacturing a micromechanical component having a volume-elastic medium and micromechanical component

In a power-assisted steering system or power steering system having an electric motor, which drives a worm gear mechanism that has a composite gear wheel in the form of a worm wheel, the worm wheel includes a ring gear connectible to a hub via a first disk, and an annular projection of the first disk axially engages with the ring gear. In order to improve the centering of the component parts of the composite gear wheel in the tangential direction, and in order to render the power transmission in the gear wheel uniform, the annular projection on the first disk is provided with one or more depressions in the axial direction to form tooth-like projections, which form a drive-type toothed section and engage with depressions on an axial side face of the ring gear.

Power-assisted steering system or power steering system

A method for manufacturing a throttle valve unit having a housing part and a valve flap part that can move in relation to it includes the steps of injection molding the housing part of a first plastic material in a first cavity, transferring the molded housing part to a second cavity spatially decoupled from the first cavity, and injection molding the movable valve flap part out of a second plastic material in a second mold cavity inside the molded housing part. Before the molded housing part is transferred to the second cavity, it is subjected to an intermediate treatment in order to influence the shrinkage behavior, thereby selectively adjusting the gap geometries between the parts.

Method for producing a throttle valve unit in a two-component injection molding process

Growing community of inventors

Stuttgart, Germany

Wolf-Ingo Ratzel