Centrifugal pump bearing arrangement
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United States of America Patent
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-
Oct 3, 1989
Grant Date -
N/A
app pub date -
Feb 29, 1988
filing date -
Feb 29, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A centrifugal pump of the 'sealless' type including a casing containing a pumping chamber, inlet and outlet, and an impeller mounted on a shaft supported by an independent bearing system. The impeller shaft is driven by a motor located outside of the casing through a set of magnets located on the opposite sides of the wall of the casing and magnetically interconnected together with the motor driving the magnets located on the outside of the casing and with magnets located on the inside of the casing being connected to and driving the pump impeller. The bearing system includes a lubricating system which in some cases will use the pumped fluid as a lubricant and coolant.
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