Salient pole machine with rotor having rotor rim with pole-rim interface and fixation points
US11476729B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 2017 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Jul 14, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K1/265
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.