Atlas Copco Airpower, Naamloze Vennootschap

Bart Maria M Raes

Erik Paul Fabry

Anton Jan Goethals

Cylindrical symmetric volumetric machine (), which machine () includes two cooperating rotors (), namely an outer rotor () which is rotatably mounted in the machine () and an inner rotor () which is rotatably mounted in the outer rotor (), whereby the machine () is provided with an electric motor () with a motor rotor () and a motor stator () to drive the outer and inner rotor (), characterised in that the electric motor () is mounted around the outer rotor (), whereby the motor stator () is directly driving the outer rotor (), and whereby the electric motor () extends along only a part of the length (L) of the outer rotor () and the inner rotor (), whereby the motor () is located at an end () of the inner rotor () with a smallest diameter (D).

Growing community of inventors

Wilrijk, Belgium

Bart Maria M Raes