EDDY PUMP - How it Works ...

Dr. Harry Weinrib, the inventor of the EDDY Pump, describes the operation of the pump as follows: The EDDY Pump consists of an energy generating rotor (1) attached to the end of a drive shaft (2) and placed within a volute (3). As the rotor begins to spin, it sets into motion the ambient fluid present within the volute and adjoining intake chamber (4). At normal operating speed, this spinning fluid is forced down, into the hollow center of the intake chamber where it creates a high speed, swirling synchronized column of fluid (5) which agitates the material (6) to be pumped (sludge, sand, clay etc.) This swirling column of fluid creates a peripheral "EDDY" effect (7) which causes the agitated material to travel by reverse flow, up, along the sides of the intake chamber, into the volute. Here the material, under pressure from below, is forced into the discharge pipe (8).



This action also results in a region of negative pressure in the vicinity of the pump seal. The negative pressure enables the pump to achieve zero leakage with a very simple seal design (patent pending). The seal design allows one way passage of externally supplied low pressure air (or other fluid/gas) through the shaft seal toward the pump casing (volute) to oppose the ingress of the material being pumped.