STAGE OF VORTEX PUMP WITH ONE-SIDED FLOW PART Russian patent published in 2011 - IPC F04D5/00 

FIELD: engines and pumps.

SUBSTANCE: stage of vortex pump with one-sided flow part includes impeller 4 with blades 5 on periphery and two parts 1, 2 of stator on sides of the impeller. In one of the above parts there is inlet opening 7, and in the other one - outlet opening 8. In part 2 with outlet opening 8 there is free channel 6. In free channel 6 there installed is divider 9 with cross section in the form of segment. Spacer ring 3 is installed concentrically to impeller 4 between parts 1, 2 of stator. Peripheral part of free channel 6 is made in the above ring.

EFFECT: invention allows decreasing linear sizes of stage and improving its operating efficiency at low flow rates.

7 cl, 5 dwg