FIELD: engines and pumps.
SUBSTANCE: proposed device has motor 3 to drive pump displacing working fluid 10 along displacement channel 100. Said channel 100 extends along clearance 35 between motor stator 32 and rotor 31. To prevent rotor dynamic misbalance caused by hydrodynamics of fluid 10 in channel 35, guide vanes 18 are arranged in said channel 100. Said vanes feature shape creating counter swirl before penetration of fluid into clearance 35 relative to direction of rotation.
EFFECT: preventing rotor damage.
7 cl, 5 dwg
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