Electrical Power Motor-Generator Excited by Magnetic Transference

An electrical power motor-generator excited by magnetic transference, of the variety in which the keepers made of magnetic conductor material of the stator and rotor, the latter rotating inside the former, are communicated by an external core of magnetic conductor material, which differs from both and is stationary relative to them, this core being joined to the keeper of the stator by direct contact, and to that of the rotor by a secondary air gap, which, in turn, faces the stator through an active air gap;

• the core having an outer axial part, which is joined directly to the keeper of the stator, referred to as the axial armature, an inner part, referred to as the central core, which communicates with the keeper of the rotor through the secondary air gap and a third part, which is located between the two aforementioned parts and joins them together, which is referred to as the disk;
• all of these parts being made of magnetic conductor material, with little or no magnetic remanence, such as soft iron and thin sheets of magnetic steel;
• the rotor having no excitation coil, as far as operating as a synchronous generator is concerned, thus meaning it does not have collector rings or brushes;
• the keeper of the stator supports a conventional polyphase winding or individual coils on each projection;
• the electrical power motor-generator being excited by magnetic transference;
• the external core having a complete ring-shaped cross-section of the axial armature and a complete circular crown of the disk, replaced or formed by permanent magnets and electromagnets, and ventilation windows, between every two of them and a section of the central core replaced or formed by an axial permanent magnet.