Magnetically suspended centrifugal pump apparatus with an automa

Details Magnetically suspended centrifugal pump apparatus with an automa Magnetically suspended centrifugal pump apparatus with an automa

1997-12-16

2000-01-18

Freay, Charles G.

Pumps

Motor driven

Electric or magnetic motor

310 905, F04B 1700, H02K 709

Patent

active

060152753

ABSTRACT:
In order to enable speedy and simple exchanging operation of impeller and casing by eliminating setting operation, a sensor output when the impeller is not floating is measured by an automatic neutral position setting circuit at the activation of an electromagnet as an active magnetic bearing, the sensor output is compared with a predetermined set value and difference therebetween is calculated, which difference is used for adjusting the sensor output.

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patent: 5666014 (1997-09-01), Chen
patent: 5772564 (1998-06-01), Taniguchi et al.
patent: 5777414 (1998-07-01), Conrad
patent: 5783885 (1998-07-01), Post
patent: 5798454 (1998-08-01), Nakazeki et al.
patent: 5911558 (1999-06-01), Nakazeki et al.

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