Bearing device

Details Bearing device Bearing device

2006-01-31

2006-01-31

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

06992416

ABSTRACT:
A rotor portion, which is supported rotatably with respect to a housing, rotates due to magnetic action with a magnet attached to the rotor portion by flowing electric current through an electromagnetic coil. Vibration of the rotor portion becomes large if centrifugal force is generated due to eccentricity or unbalance. Positional sensors detect the deviations. In order to eliminate the deviations, electric current flows through an electromagnetic coil, causing a force in a radial direction to act on the rotor portion. A bearing device capable of correcting minute shaft deviations is thus obtained.

REFERENCES:
patent: 6307295 (2001-10-01), Murabe et al.
patent: 6442857 (2002-09-01), Atsuhiko et al.
patent: 6617734 (2003-09-01), Taniguchi et al.
patent: 11-311511 (1999-11-01), None

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