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Abstract

A submersible pump assembly configured to manipulate the flow of fluids to achieve sufficient flow rate and fluid pressure to efficiently pump viscous or solids-laden fluid, while minimizing the risk of pump clogging and/or damage due to the solids content of the fluid. The submersible pump assembly comprising a cylindrical housing having an intake disposed at an upstream end for receiving viscous and/or solids-laden fluid and an outlet disposed at a downstream end opposite the intake for discharging the fluid to the surface. A rotating shaft extending through the cylindrical housing along a center axis of the housing and adapted to be driven by a submersible motor. A plurality of successive pumping stages disposed in a co-axial arrangement along the rotating shaft and a helical inducer coupled to the shaft between the intake and the plurality of pumping stages. The helical inducer comprising at least a single helical turn that directly converges into the plurality of pumping stages.

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First Claim