Eddy Pump Technology

The Eddy Pump has unique and patented operating characteristics that make it a perfect choice for dredging and specialized material handling markets.

This section describes the principle behind the Eddy Pump design and outlines performance characteristics and advantages over conventional technologies.

How the Tornado Principle Works

The physical principle behind the Eddy Pump is similar to the one, which enables a tornado or a waterspout to pick up buildings and boats. Where a tornado utilizes a high-speed column of swirling air, the Eddy Pump uses a column of fluid. The inventor of this pump, Harry P. Weinrib, M.D., Ph.D. in Physics, has contained this energy within the confines of a pump casing. The hydrodynamic pattern, generated within this specifically shaped enclosure, creates a pump that is not affected by the NPSH related negative side effects common to conventional centrifugal pumps.

Tests show that there is no evidence of cavitation at speeds up to 2000 rpm. The cumulative effect of this energy gives the Eddy Pump a much greater head than conventional pumps and the ability to pump more concentrated material over long distances. This approach to pump technology is so novel that Dr. Weinrib was awarded several patents by the U.S. Patent Office, as well as patent protection in Canada, Latin America, Europe and Asia. The Eddy Pump basic configuration is illustrated below.

Eddy Pump Configuration

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 the 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).

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	Eddy Pump Technology The Eddy Pump has unique and patented operating characteristics that make it a perfect choice for dredging and specialized material handling markets. This section describes the principle behind the Eddy Pump design and outlines performance characteristics and advantages over conventional technologies. How the Tornado Principle Works The physical principle behind the Eddy Pump is similar to the one, which enables a tornado or a waterspout to pick up buildings and boats. Where a tornado utilizes a high-speed column of swirling air, the Eddy Pump uses a column of fluid. The inventor of this pump, Harry P. Weinrib, M.D., Ph.D. in Physics, has contained this energy within the confines of a pump casing. The hydrodynamic pattern, generated within this specifically shaped enclosure, creates a pump that is not affected by the NPSH related negative side effects common to conventional centrifugal pumps. Tests show that there is no evidence of cavitation at speeds up to 2000 rpm. The cumulative effect of this energy gives the Eddy Pump a much greater head than conventional pumps and the ability to pump more concentrated material over long distances. This approach to pump technology is so novel that Dr. Weinrib was awarded several patents by the U.S. Patent Office, as well as patent protection in Canada, Latin America, Europe and Asia. The Eddy Pump basic configuration is illustrated below. Eddy Pump Configuration 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 the 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). top of page