SWIRL OIL-WELL PUMP Russian patent published in 2006 - IPC F04D13/10 F04D5/00 

FIELD: oil producing industry; water supply pumps.

SUBSTANCE: proposed pump has housing, swirl wheels and guide assemblies. Each swirl wheel is made in form of straight-tooth gear forming open longitudinal cavities with concave bottom. Guide assemblies enclose swirl wheels with clearance being made with longitudinal cavities pointed by open side to cavities of swirl wheel. Each guide assembly is provided with additional flow divider found on diametrically opposite side relative to main divider. Concave channels are made between flow dividers which are provided with straight-line plane at receiving side changing into curvilinear plane at outlet side. Pump is provided with side disk with rigid sealing rings installed at both sides of swirl wheel and guide assembly. Each guide assembly and side disk are provided with additional channel located in peripheral zone, channels of side disk being discharge ones fro preceding swirl wheel and intake ones for following swirl wheel.

EFFECT: improved operation reliability and reduced labor input when manufacturing working members of pump.

2 cl, 6 dwg