Reishauer Ag

Erwin Sennhauser

Walter Wirz

Roger Kirsch

Hartmut Marx

Ronald Jakob

Michael Mros

Roman Fürderer

Michel Müller

Franz Bachl

Lorenz Winkler

Roman FÜRDERER

The invention relates to an electrical machine having a rotor (), a stator () radially surrounding the rotor, and a housing () radially surrounding the stator. In order to minimize stresses in the housing and nonetheless decrease the tendency of the stator to torsional vibrations, the stator is connected to the housing at least at one end in a radially and torsionally rigid but axially movable manner, for example, by way of an axially compliant material area. The electrical machine can, in particular, be a motor spindle in a gear finishing machine.

Electrical machine

In a housing ( ), a hollow shaft ( ) is located for rotation, driven by a motor ( ). Rigidly attached to the shaft ( ) is a pressure vessel ( ). Fitted to the shaft ( ) inside the vessel ( ) is a filter comprising a number of tube-shaped filter elements ( ). The liquid to be filtered is fed into an upper chamber ( ) of the shaft ( ) via an inlet ring ( ), and flows through transverse holes ( ) into the vessel ( ). After passing through the filter ( ), the purified liquid is discharged via holes ( ) in the hollow shaft ( ) through an outlet ring ( ). To clean the filter the residual liquid in the vessel ( ) is pressed out through the filter with compressed air. Subsequently the deposit adhering to the filter tubes ( ) is flung off by rotating the shaft ( ) and propelled to the bottom of the vessel by feeding compressed air or clean oil to cleaning nozzles ( ). An outlet ring ( ) is raised slightly and the deposit at the vessel wall is dried by centrifuging. After opening the ring ( ) completely, the dried deposit is flung out through the gap between ring ( ) and the vessel base ( ).

Process for the filtration and drying of solid particles out of liquids

Growing community of inventors

Kleinandelfingen, Switzerland

Erwin Sennhauser