Dynamoelectric machine composed of sectors having transverse fluxes

Variable-reluctance rotating dynamoelectric machine comprising a plurality of structures (A, B, C . . . ) juxtaposed coaxially with an axis of rotation (Z), each structure being made up of a stator magnetic circuit (1) and a rotor magnetic circuit (21) which are concentric with each other, the stator magnetic circuit (1) being constituted by an assembly of stator angular sectors arranged in a circle about the axis of rotation (Z) and having, as seen in a direction tangential to the axis of rotation (Z), a U-shaped profile having two arms (2, 3), an entire series of arms of the stator angular sectors being provided at free ends of each set of arms (2, 3) with a row of stator teeth (5a, 5b, 5c . . . /6a, 6b, 6c . . . ) located opposite to another row of teeth (27a, 27b, 27c . . . /28a, 28b, 28c , , , ) forming part of the rotor magnetic circuit (21) so as to constitute two rows of airgaps (5a-27a, 5b-27b . . . /6a-28a, 6b-28b . . . ) of annular shape, a stator winding (15) of toroidal shape which is concentric with the axis of rotation (Z) being housed within U-shaped profiles, wherein the stator angular sectors are independent arches (9) each constituted by a stack of strips of magnetic sheet (T) bent to different radii about bending axes, a direction (X) of which is transverse to the axis of rotation (Z), the stator teeth (5, 6) having cylindrical airgap surfaces constituted by a portion of the sheets (T) and, in the teeth (5, 6), the sheets (T) extend in planes substantially perpendicular to the axis of rotation (Z),

• and wherein said independent arches of said stator angular sectors and independent arches of angular sectors of said rotor magnetic circuit are formed by a ring (29) formed by a process of winding and adhesively bonding a strip of magnetic sheet (T) of constant width, and of cutting the ring (29) into two regions in circumferentially spaced relation so as to obtain two arches (9;
• 9,22).