Robert Bosch

Siegmar Schoser

Andreas Schiel

Juergen Munz

Michael Hermann

Detlef Prahl

Jeanne Forget

Joerg Brandes

Zsolt Dudas

Ronald Neidhardt

Tobias Rothfuss

Michael Maelzer

Tamas Banky

Karl Kohlhof

In an electronically commutated DC motor having a stator unit () and a rotor unit () which is in the form of an external rotor, and having stationary sintered bearings (), the invention proposes that the rotor unit () is conductively connected to the shaft () in order to connect a conductive shielding, which is formed on the rotor unit (), to a defined electrical potential, and that the sintered bearing () is conductively connected to the potential, so that the shielding of the rotor unit () is capacitively coupled to the potential by means of the electrically insulating, oil-filled bearing gap which is arranged between the shaft () and the sintered bearing (). Therefore, a sliding contact is not required.

Electronically commutated DC motor with shielding

A rotary drive which is suitable in treatment of three-dimensional workpieces. In this rotary apparatus, only the removably mounted rotatable rods that serve as sample holders are connected to high voltage, which is delivered via a central high-voltage lead-in at the lower end of the rods, while the actual drive elements for rotating the rods are electrically insulated therefrom by suitable ceramic insulating elements.

Rotating device for plasma immersion supported treatment of substrates

Growing community of inventors

Kusterdingen, Germany

Siegmar Schoser