Robert Boschgmbh

Robert Schenk

Peter Ahner

Manfred Ackermann

Siegfried E Schustek

Martin Eisenhardt

Silvan Hippchen

Martin Roettgen

Zsolt Dudas

Juergen Steinbach

Daniel Engelhardt

Matthias Gesellmann

Markus Moeller

Geo Slavov

Dragan Krecar

The invention relates to a method for producing a cooling device (), which has at least one hollow body () made of a first material having good thermal conduction and a base body made of a second material having good thermal conduction, and a pre-product for the production of a cooling device () and a cooling device () for an electrical assembly and an electrical assembly having a cooling device of this kind. The hollow body () is coated on the outside with a third material and is filled on the inside with the third material, which has a lower melting temperature than the first material and the second material, wherein the filling () completely fills the hollow body and is then cooled, wherein the filled hollow body () is placed in a die-casting mould, wherein the second material is introduced into the die-casting mould as die casting with a first temperature and flows around the hollow body () at least partially, wherein the die casting melts off the third material of the surface coating () and melts on the first material of the hollow body () so that at least in regions an integral connection is formed between the die casting of the second material, which forms the base body (), and the first material of the hollow body (), wherein the die casting of the second material becomes rigid and solid, wherein during the solidification phase, the die casting of the second material heats the filling () made of the third material in the interior of the hollow body () until the melting temperature is reached, and wherein the melted third material is removed from the hollow body () under pressure.

Method for producing a cooling device

A method is described for regulating a generator, in particular a three-phase generator which has an excitation coil through which the regulatable excitation current (IE) used to generate the excitation field flows, and has stator coils in which currents are produced that are conveyed to the consumers via pulse inverters. By controlling the pulse inverters, the stator current can be impressed with respect to value and phase in relation to the excitation current so that the output power of the generator is optimized in the required speed range.

Method for regulating a generator capable of being driven by an internal combustion engine

Method for controlling an asynchronous machine

Starter for an internal combustion engine

Growing community of inventors

Vaihingenenz, Germany

Robert Schenk