Hans Zimmermann

Gas-cooled electric machine

Rotor of a turbogenerator having direct gas cooling of the excitation winding

Gaseous cooled electrical machine

Electric synchronous machine having slip rings arranged outside the machine housing, and a method for producing it

Electrical machine with an axial fan

Horizontal axis electrical machine with radial support bolts

Arrangement for fastening a machine part to a foundation

Rotor of turbogenerator with direct gas cooling of the exciter coil

Air-cooled rotating electric machine

Synchronous electric machine with slip rings mounted externally to the casing of the machine and method of manufacturing