Device for regulating the output of a verticle-axis centrifugal

Details Device for regulating the output of a verticle-axis centrifugal Device for regulating the output of a verticle-axis centrifugal

1997-04-29

1998-11-10

Verdier, Christopher

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing having tangential inlet or outlet

4151821, 415203, 415206, 4152081, 4174233, 4174241, F04D 2944, F04B 1703

Patent

active

058334343

ABSTRACT:
A suction port (2a) of the pump is submersed in an open-top cylindrical casing (3) coaxial to the impeller axis and equipped with a liquid inlet pipe (4) tangentially discharging the liquid into the casing in the direction of the impeller rotation. The lower portion of the cylindrical casing wall (3d) and/or the liquid inlet pipe (4) is designed in the form of a channel or pipe following a radius with center inside the casing, so that the swirling flow generated inside the casing (3), and the inlet flow that enhances said swirling flow, are concentrated and their liquid levels dynamically forced into a vertical level.

REFERENCES:
patent: 91580 (1869-06-01), Timby
patent: 4880352 (1989-11-01), Aarestad

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