FIELD: electrical engineering; driving fans, pumps, domestic appliances, and other mechanisms. SUBSTANCE: motor has salient-pole stator with concentrated winding wound on four poles, each pole having angular width of 45-60 deg. , and unwound rotor with two poles. Cylindrical surface of each rotor is stepped at two points over arc. Angular width of each step is, respectively, 45 deg.+0,5•αs and 90 deg.-αs, where αs is angular width of stator pole. EFFECT: improved motor torque. 2 dwg
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