FIELD: electrical machines; dc motors and generators used for industrial robots and automatic-control systems. SUBSTANCE: permanent-magnet dc machine stator has magnetically soft yoke, cylindrical pole cores, and permanent magnets in the form of hollow open cylinders. Stator yoke is provided with cylindrical slots open on air-gap side so that generating lines of cylindrical surfaces of slots are parallel to stator axis. Slot depth is greater than half of their diameter; slots accommodate permanent magnets in the form of open hollow cylinders. Inner spaces of magnets, accommodate cylindrical pole cores projecting towards air gap. EFFECT: enlarged functional capabilities. 2 dwg
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