HIGH-VISCOSITY LIQUID PUMPING DEVICE Russian patent published in 2004 - IPC

FIELD: oil producing industry; viscous liquid transfer devices.

SUBSTANCE: proposed device has working member with drive in form of spring installed inside housing and provided with flexible drain and intake parts. Spring is made of wire with variable diameter of wire uniformly increasing from ends to drive of working member. Ripping device installed on end of spring in intake part is made in form of hollow cylinder with spherical bottom and ports with curvilinear knives installed over ports from outer side along generating line. Knives are installed relative to base of bottom at angle equal to angle of spring helix. Open turbine wheel of conical shape with curvilinear blades mounted on cone generating line is installed on end of spring is drain part.

EFFECT: increased through capacity, reduced energy consumption for pumping of liquid, improved collection of liquid from surface when liquid level is low.

3 dwg