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1. (WO2018158604) SALIENT POLE MACHINE

Pub. No.:    WO/2018/158604    International Application No.:    PCT/IB2017/000345
Publication Date: Sat Sep 08 01:59:59 CEST 2018 International Filing Date: Sat Mar 04 00:59:59 CET 2017
IPC: H02K 1/28
H02K 1/24
Applicants: GE RENEWABLE TECHNOLOGIES
Inventors: WHEBE SPIRIDON, Michel
Title: SALIENT POLE MACHINE
Abstract:
A salient pole machine (30) comprises a rotor (20) rotating about a machine axis, said rotor (20) having at its circumference a rotor rim (21 ) with a predetermined outer radius (29), whereby a plurality of salient poles (22), each extending in radial direction, is attached to said rotor (20) at said rotor rim (21 ) at a respective pole-rim interface (24). The mechanical properties of the configuration are improved by providing at said pole-rim interface (24) a plurality of axial rib-like rim extensions (25) projecting radially from said rotor rim (28) with a predetermined circumferential distance (d) between neighboring rim extensions (25), by each salient pole (22) having a plurality of axial pole grooves (26) matching and receiving said rib-like rim extensions (25) at the respective pole-rim interface (24), and by providing fixing elements (27) to fix said rib-like rim extensions (25) in said pole grooves (26).