Robert Boschgmbh

Kolektor D.o.o

Hoffmann & Co Elektrokohle Ag

Gerhard Bachauer

Sven Hartmann

Johann Hoell

Michael Bayer

Marjan Drmota

Hans Hoell

Jose Potocnik

Herbert Scheutz

A multilayer brush, which essentially contains a composite having a graphite component and having a copper component, and a layered structure, a first layer being furnished with a high copper component and a further layer being furnished with a comparatively low copper component. It is provided that the copper component of the first layer in comparison with the copper component of the second layer corresponds to a ratio of &#x2266;3/2.

Multilayer brush having a composite

A method for producing a flat commutator with a hub body formed from insulating molding compound, a plurality of conductor segments and an equally large number of carbon segments, the hub body being molded onto a conductor blank provided with radial grooves, which grooves are filled with molding compound. Then the composite part of conductor blank and hub body is machined on the end face of the conductor blank turned away from the hub body. An annular carbon disk is adhesively bonded to the machined end face of the composite part, whereby electrically conductive connections to the conductor blank or to the conductor segments produced therefrom are established. Finally the annular carbon disk is subdivided into carbon segments by cuts extending into the molding compound that fills the grooves. The conductor blank is then subdivided into conductor segments.

Method of producing a flat commutator and a flat commutator produced according to said method

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Bad Ischl, Austria

Gerhard Bachauer