FIELD: engines and pumps.
SUBSTANCE: invention is related to helical rotor pump used for supply of highly viscous mediums or mediums comprising hard substances. Helical rotor pump comprises stator (2) and rotor (1) that rotates in it, and also driving engine for rotor rotation, which is connected to rotor (1) of pump and has stator winding (4) and rotor (3, 3a) of cylindrical shape. Rotor (3, 3a) is located with the possibility of rotation along eccentric circular trajectory inside cylindrical body (5), on which stator winding is installed (4). Engine rotor and pump rotor are rigidly connected to each other.
EFFECT: provision of torque supply, which is required for pump drive, without additional means that increase design length of pump, and also without application of seals and bearings of shaft, with simultaneous capability of pump to develop high pressure.
12 cl, 4 dwg
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