US 11,677,286 B2
Salient pole machine with rotor having rotor rim with pole-rim interface and fixation points
Michel Whebe Spiridon, Birr (CH)
Assigned to GE Renewable Technologies, Grenoble (FR)
Filed by GE Renewable Technologies, Grenoble (FR)
Filed on Sep. 26, 2022, as Appl. No. 17/952,706.
Application 17/952,706 is a continuation of application No. 16/490,153, granted, now 11,476,729, previously published as PCT/IB2017/000345, filed on Mar. 3, 2017.
Prior Publication US 2023/0009096 A1, Jan. 12, 2023
Int. Cl. H02K 1/32 (2006.01); H02K 1/24 (2006.01); H02K 1/28 (2006.01); H02K 1/26 (2006.01)
CPC H02K 1/325 (2013.01) [H02K 1/243 (2013.01); H02K 1/28 (2013.01); H02K 1/265 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A salient pole machine comprising:
a rotor rotatable about a machine axis, the rotor further comprising a rotor rim at a circumference thereof;
a plurality of salient poles, each salient pole comprising a pole winding and extending in a radial direction and attached to the rotor rim at a pole-rim interface;
the rotor rim comprising an outermost radial surface extending in the circumferential direction between the pole-rim interfaces;
each of the pole-rim interfaces comprising:
a plurality of axial rib-like rim extensions projecting radially from the outermost radial surface of the rotor rim with a predetermined circumferential distance (d) between neighboring rim extensions;
a plurality of axial pole grooves provided in the salient pole matching and receiving the rim extensions;
a plurality of axially extending fixing elements that fix the rim extensions in the pole grooves, the fixing elements inserted axially into facing interface holes defined in facing sidewalls of the pole grooves and the rib-like rim extensions; and
the fixing elements radially inward of the pole windings and accessible for axial sliding removal from the facing interface holes, wherein the salient poles with pole windings are subsequently removable from the rotor.