MULTI-DISC UNIPOLAR DC ELECTRIC MACHINE Russian patent published in 2013 - IPC H02K31/00 H02K21/20 

FIELD: electricity.

SUBSTANCE: in the suggested unipolar DC machine consisting of stator and rotor divided by air gaps and made as series-connected unipolar machines with disc rotors installed at common rotation shaft according to the invention a fixed magnet system is used as stator; the latter consists of several hollow cylindrical permanent magnets and disc-shaped magnet conductors with protrusions and holes in the centre serve as continuation of poles; butt ends of magnet conductors are located symmetrically at both sides of rotative rotor electric- and magnetic-conducting discs which are series-connected electrically through several electroconductive closed belts, bushings, sprockets and slave rotation shafts; at the ends of two outermost shafts, there are small-sized electroconductive discs which are submerged partially to electroconductive liquids in containers of liquid metal current collectors connected respectively to positive and negative terminal of its electrical lead. The suggested unipolar machine can operate both in motor mode and in generator mode.

EFFECT: improving electromechanical characteristics, increasing wear resistance and operating voltage of the suggested unipolar machine thus expanding its scope of application.

2 dwg