Patent ID: 7794211
Filing Date: 2010-09-14
Classification: B01D,B60P,E03F,F04C,F04D,Y10T

Abstract:
1. A pump for pumping a fluid, the pump comprising: a motor for driving a first motor drive shaft extending in a first direction from the motor and a second motor drive shaft extending in a second opposite direction from the motor; a centrifugal pump having a main inlet and a main outlet, the centrifugal pump having an impeller that is powered by the first motor drive shaft; a separator having an inlet and an outlet, wherein the outlet of the separator is fluidly coupled to the main inlet of the centrifugal pump; and a vacuum pump having a vacuum pump housing fluidly coupled to the separator for creating a reduced pressure in the separator to help draw fluid through the inlet of the separator and into the separator, the vacuum pump further having a rotating element that rotates about an axis within the vacuum pump housing for creating the reduced pressure in the vacuum pump housing and thus in the separator, wherein the rotating element of the vacuum pump is powered by the second motor drive shaft without the use of a belt and pulley system.