An open face cooling system for a motorized, impeller-type, submersible
pump operated in a host fluid ladened with solids, comprising an inlet in
the pump housing close to the impeller and away from the axis of the pump
into which fluid is forced by pump pressure, the inlet arranged so the
impeller vanes sweep its face with a shearing motion that reduces the
size of any solids present there until they are small enough to enter the
inlet with the fluid flow, the materials ladened fluid flowing hence
through a coolant conduit, out of a tangentially configured nozzle into a
rotational flow around the inside of an open face toroidal section, and
hence inward through an adjoined, inward extending distribution section
configured co-axially around and above the motor, to be discharged upon
the motor.