FIELD: engines and pumps.
SUBSTANCE: invention relates to electrical engineering and machine building, particularly, to borehole motors to lift bed fluid. Proposed borehole motor comprises stator with toothed magnetic core accommodating the rotor. Stator teeth internal surface has grooves regularly arranged in circle in axial direction, the number making three, or being multiple of three.
EFFECT: lower reactionary torque, hence, vibration, better starting properties.
2 cl, 8 dwg, 2 tbl
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