MAGNETIC BEARING

PROBLEM TO BE SOLVED: To reduce a loss in a magnetic bearing supporting a rotary shaft in a non-contact manner by electromagnetic force.SOLUTION: A magnetic bearing includes: a plurality of teeth (24) (iron core); a coil (Cd) for a control current, which is wound around each of the teeth (24) and ge...

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Bibliographic Details
Main Authors NAKAZAWA YUJI, YAMASHITA NAOYA, IRINO YUSUKE, SAKAWAKI ATSUSHI, MAEDA TOSHIYUKI
Format Patent
LanguageEnglish
Published 11.07.2013
Subjects
BEARINGS
BLASTING
ELEMENTS OR CRANKSHAFT MECHANISMS
ENGINEERING ELEMENTS AND UNITS
FLEXIBLE SHAFTS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SHAFTS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To reduce a loss in a magnetic bearing supporting a rotary shaft in a non-contact manner by electromagnetic force.SOLUTION: A magnetic bearing includes: a plurality of teeth (24) (iron core); a coil (Cd) for a control current, which is wound around each of the teeth (24) and generates a magnetic flux for controlling the position of the rotary shaft (13); and a coil (Cb) for a bias current, which is wound around each of the teeth (24) and generates a bias magnetic flux with the winding number (Nb) larger than that of the coil (Cd) for control current.
Bibliography:Application Number: JP20110288493