| 摘要 |
A reluctance machine comprises a stator with an annular winding 22. Plural stator flux guides 24b are arranged around the annular coil 22 and guide flux generated by current flowing in the winding in a plane perpendicular to the current direction. A rotor has flux guides 26 which, when at least partially aligned with the stator flux guides 24 guide flux between their ends 60b, 62b. The stator and rotor flux guides can be around their respective circumferences. Flux can be guided either in a radial direction in the stator and an axial direction in the rotor, axially in the stator and radially in the rotor (fig 9) or at an angle to the rotation axis (fig 10) with the rotor flux guides lying on a virtual cone. The stator flux guides can be C shaped or T shaped (fig 14) and continuously formed (fig 16). Flux guides can comprise metallic powder, soft magnetic composite or metal laminations. There can be plural sets of independent windings and flux guides that can be circumferentially either aligned or offset and be continuous or have gaps between them. The machine can be a motor or a generator and single or three phase and be part of a pump in whose impellor comprises the rotor flux guides. |
