Ge Renewable Technologies

Michel Whebe Spiridon

A salient pole machine a rotor having a rotor rim. A plurality of salient poles having a pole winding and extending in the radial direction are attached to the rotor rim, with the rotor rim having an outermost radial surface between the pole-rim interfaces. A plurality of axial rib-like rim extensions project radially from the outermost radial surface of the rotor rim with a predetermined circumferential distance between neighboring rim extensions. A plurality of axial pole grooves in the salient pole match and receive the rim extensions. Fixing elements fix the rim extensions in the pole grooves and are inserted axially into facing interface holes defined in facing sidewalls of the pole grooves and the rib-like rim extensions. The fixing elements are radially inward of the pole windings and are accessible for axial sliding removal from the facing interface holes.

Salient pole machine with rotor having rotor rim with pole-rim interface and fixation points

A salient pole machine () comprises a rotor () rotating about a machine axis, said rotor () having at its circumference a rotor rim () with a predetermined outer radius (), whereby a plurality of salient poles (), each extending in radial direction, is attached to said rotor () at said rotor rim () at a respective pole-rim interface (). The mechanical properties of the configuration are improved by providing at said pole-rim interface () a plurality of axial rib-like rim extensions () projecting radially from said rotor rim () with a predetermined circumferential distance (d) between neighboring rim extensions (), by each salient pole () having a plurality of axial pole grooves () matching and receiving said rib-like rim extensions () at the respective pole-rim interface (), and by providing fixing elements () to fix said rib-like rim extensions () in said pole grooves ().

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Birr, Switzerland

Michel Whebe Spiridon