SUBMERSIBLE GROUNDING CENTRIFUGAL PUMP Russian patent published in 2017 - IPC F04D7/04 F04D29/42 E02F3/88 

FIELD: engines and pumps.

SUBSTANCE: precoat submersible centrifugal pump comprises an impeller with blades, provided with a drive housing (3) with attached thereto the main outlet pipe (5) and the additional output pipes (6, 7) provided with flaps (8). The housing (3) includes an impeller with minimal radial clearance. At its inlet (15) mounted inlet oriented in the meridional cross section in the main pipe (5). Additional nozzles (6, 7) are arranged in a first of the main pipe (5) half shell (9) of the housing (3) according to the rotational direction of the impeller 1.

EFFECT: increase of the pump upon removing the soil by increasing the intensity of the loosening process.

5 cl, 12 dwg