Electrical machine

Abstract

A current rectifier-excited synchronous electrical machine includes a rotor defining an axis of rotation. The rotor includes a rotor shaft, a stator housing, and a central disk. The rotor shaft is mounted in the stator housing. The central disk extends radially outward from the rotor and defines an outer circumference. At least one ring-shaped pole structure is secured to the disk outer circumference and disposed coaxial to the axis of rotation. The pole structure includes a plurality of permanent magnets, soft iron elements and insulators. The permanent magnets and soft iron elements are disposed in interleaved fashion. The insulators are formed of magnetically and electrically nonconductive material and are disposed between each of the magnets and iron elements. The magnets, iron elements and insulators are disposed in two side-by-side rows. Each pole structure is opposed by a stator assembly comprising an outside stator and an inside stator. The outside stator is disposed radially outward of the pole structure, and the inside stator is disposed radially inward of the pole structure. The outside and inside stators are armature elements of a general U-shape defining a pair of ends disposed adjacent and facing the pole structure. A single armature winding operably excites the stator. The armature winding is disposed only in one of the outside stator and inside stator, and the other of the outside and inside stator is void of a winding.

Dependencies are inferred from the claim text.