DC ELECTRIC MACHINE Russian patent published in 2015 - IPC H02K25/00 H02K19/20 H02K1/06 

FIELD: electricity.

SUBSTANCE: invention refers to electrical engineering, namely to direct-current electric machines, an armature winding of which is ring-type, whereas a magnetic core consists of laminated steel ring stacking closed to the external diameter by an outer magnetic core, provided with long non-magnetic insertions around the circumference and separated by non-magnetic annuli. An inductor magnetic core consists of laminated steel profile stacking displaced at an electric pulse angle equal to a quotient obtained when a pulse width is divided by a quantity of inductor stacking, and separated by non-magnetic annuli. Inductor winding generates a similarly polar magnetic field. An air gap with a periodically variable value is provided along the length of each polar pitch according to the law of magnetic flow transition inducing one-polar pulses of single-phase electromotive force at each polar pitch in the armature winding.

EFFECT: creating a slider-free direct-current electric machine.

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