FIELD: machine building.
SUBSTANCE: device with radial flow includes a housing, an impeller located on the shaft, a slot-type seal and a suction leakage return pipeline. In the above unit, between seal and return pipeline, there installed in series in the direction of leakage flow is a guide blade system in the housing and an additional impeller on the unit shaft.
EFFECT: increasing the unit efficiency.
1 cl, 1 dwg
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