Robert Boschgmbh

Bosch Corporation

Dietmar Hahn

Gottfried Flik

Heinz Fuchs

Frank Schatz

Joerg Heyse

Detlef Nowak

Guenter Dantes

Stefan Arndt

Gilbert Moersch

Beate Ader

Alexandra Jauernig

Falk Herrmann

Thomas Schittny

Roland Walter

Andreas Heilmann

Juergen Wiker

Gerhard Meixner

Karl Frauhammer

Axel Kuhnle

Aldo Di Nicolantonio

Andreas Strasser

Erhard Hoffmann

Andreas Reissner

Ulrich Single

Markus Ohnmacht

Mario Pauli

Klaus Kuettner

Yasuo Toyoshima

Kan Cho

A handle for an electric hand tool, which in use, is detachably connected to the hand tool as an auxiliary handle (), includes at least one detection device (), which communicates with at least one regulating and/or control element in the electric hand tool through a contactless signal transmission device.

Handle with detecting unit

The invention relates to an electric power tool having a control and/or regulating device for an electric motor. It is provided that the control and/or regulating device () is assigned an electronic memory element () for at least one operating state of the electric motor ().

Electric power tool with memory capability

In a method for shutting off a drive motor () of a power tool that drives a tool, the drive motor () is shut off as a function of a variable threshold value (E) if the tool jams. The threshold value (E) is determined in at least one predetermined time interval (T) as a function of a current load speed (n) and a no-load speed (n).

Method for switching off a power tool

A braking device for an electric motor of a power tool has a short circuit switch for short circuiting an armature winding of the electric motor during a braking process, the short circuit switch for controlling its switch condition having a control input, a control unit connected with the control input of the short circuit switch for performing a phase control of the short circuit switching during the braking process in order to avoid brush fire; also an electrical device with such a braking device and a braking method are proposed as well.

Braking device for an electric motor, electrical apparatus provided with the braking device, and a method of braking

A method for manufacturing a sensor, the sensor including a three-dimensional interdigital electrode arrangement positioned on a substrate, comprising applying a temperature sensing resistor onto the substrate by sputtering a first adhesion layer and a first metallic layer onto the substrate, applying a first resist layer to the first metallic layer, applying and structuring a first resist material on the first metallic layer, and after structuring, etching the first metallic layer in resist free areas; and applying a three-dimensional interdigital electrode arrangement onto the substrate by sputtering a second adhesion layer and a second metallic layer onto the substrate, applying and structuring a second resist material only to second metal layer, after the structuring, etching the second metallic layer in resist free areas to form valleys, and after etching the second metallic layer, applying an electroplating layer.

Methods for manufacturing a microstructured sensor

A sensor arrangement for ascertaining the density and the viscosity of a liquid is proposed, having an arrangement comprising at least two basic sensor elements, at least one of which can be wetted with the liquid, and having electro-acoustical transducers ( ) in the basic sensor elements for generating and detecting surface acoustic waves with predetermined wave modes, from whose propagation behavior along a measurement path a measure for the density and the viscosity of the liquid can be ascertained. Liquid traps ( ) for the liquid, which extend in the applicable measurement path, are disposed in the region of at least one of the basic sensor elements, parallel to the direction of propagation of the surface acoustic wave.

Sensor array and method for determining the density and viscosity of a liquid

A sensor which has a bending reed and a piezoelectric resonator. Due to excitation by the piezoelectric resonator, the bending reed can be excited to vibration in a measurable medium. In this context, the vibration frequency and the damping of the bending reed are a function of the density and the viscosity, respectively, of the measurable medium. This can be measured by a piezoresistive element, and thus the density and viscosity of the measurable medium are ascertained.

Sensor, in particular for measuring the viscosity and density of a medium

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

A method for manufacturing an orifice plate that is built up in multiple layers and includes a complete axial through passage for a fluid. The orifice plate includes inlet openings, outlet openings, and at least one conduit lying between them. The layers or functional planes of the orifice plate are built up on one another by electroplating metal deposition (multilayer electroplating). Orifice plates manufactured in this manner are particularly suitable for use on injection valves in fuel injection systems, in paint nozzles, inhalers, or inkjet printers, or in freeze-drying processes, for spraying or injecting fluids such as beverages.

Method for manufacturing an orifice plate

Orifice plate, in particular for injection valves, and method for

Orifice plate, in particular for injection valves

A process for producing single-layer or multi-layer microcoils or microcoil arrays that optionally have a magnetic core area to increase the coil inductance and to guide the magnetic flux. In this process, plastic films (e.g., made of polyimide or polyester), are applied using pressure and heat to serve as the insulation layers. This eliminates the need for curing the insulation and expensive leveling operations.

Process for producing microcoils and microtransformers

Method for manfacturing an orifice plate

Growing community of inventors

Gerlingen, Germany

Dietmar Hahn