Abstract: An electrical machine is provided which consists of a stator made up of stacks of plates and a rotor mounted at the ends of the machine in bearing plates and rotatable in the stator. The stator plates, which are asymmetrically designed so that one part has an arcuate outline corresponding to a circular stator contour while the opposite part has a rectangular contour with an arcuate separating line extending as far as possible into the described outline when the plates are being stamped from strip material, are arranged in respective separate stacks situated on one another, multiples of 90.degree. apart, in order to form a self-supporting stator.

Abstract: The bipolar permanent field interior rotor for an electric machine comprises a multi-sided shaft which can be rotated about an axis of rotation, a multitude of sheet metal disks disposed on the multi-sided shaft, and a number of permanent magnet slabs. Each disk has a central hole formed by central edges and consists of at least two segments. The number of magnet slabs is smaller than the number of shaft sides. The magnet slabs directly engage respectively the sides of the shaft. The remainder of the shaft sides are engaged by central edges of the disks. The axes of magnetization of the slabs are arranged radially with respect to the axis of rotation of the shaft.

Abstract: A synchronous machine including a rotor having at least two lamination substacks, between which are arranged support disks of nonmagnetic material which are firmly mounted on the ferromagnetic rotor shaft. Each substack includes in the circumferential direction lamination stack parts whose number corresponds to the number of poles of the machine. Each substack further includes a ferrite magnet arranged between its lamination stack parts, and the ferromagnetic rotor shaft. The lamination stack parts and the support disks are held together in a frictionally connected and tight fitting manner by means of axial bolts.

Abstract: A permanent magnet-excited d-c machine including a stator, a plurality of flux-conducting pieces disposed in the stator, and a plurality of tangentially magnetized permanent magnets disposed in the stator between each of the flux-conducting pieces. Compensation slots are provided in the flux-conducting pieces on both sides of each of the permanent magnets and form a compensation tooth on the flux-conducting pieces between each of the slots and the permanent magnets in the stator. A winding is disposed in the slots adjacent each magnet and is looped around each magnet and each compensation tooth disposed between the compensation slots.