Magnetically suspended pump having position sensing control

Details Magnetically suspended pump having position sensing control Magnetically suspended pump having position sensing control

1997-05-08

1999-06-15

Verdier, Christopher

Rotary kinetic fluid motors or pumps

With inspection, signaling, indicating or measuring means

415900, F01B 2526

Patent

active

059115580

ABSTRACT:
Permanent magnets are buried on one side of an impeller, and a rotor having permanent magnets buried opposite thereto is provided to form a passive bearing. On the other side of the impeller, three electromagnet coils and three position sensors are circumferentially provided at equal distances to form an active bearing, the outputs of the three position sensors are operated to produce impeller displacements, which are fed back to drive the coils.

REFERENCES:
patent: 5112202 (1992-05-01), Oshima et al.
patent: 5350283 (1994-09-01), Nakazeki et al.
patent: 5686772 (1997-11-01), Delamare et al.
patent: 5725357 (1998-03-01), Nakazeki et al.

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