Magnetic Radial Bearing with Flux Boost
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United States of America
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Issued Date -
Jan 23, 2020
app pub date -
Feb 19, 2018
filing date -
Feb 19, 2018
priority date (Note) -
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Abstract
A magnetic bearing (20; 220; 320) comprises: a rotor (22; 322) to be supported for rotation about an axis (502); a stator (24; 224) extending from a first end (30) to a second end (32) and comprising: one or more first permanent magnets (50); one or more second permanent magnets (52) axially spaced from the one or more first permanent magnets; one or more intermediate permanent magnets (60; 230; 232) axially between the one or more first permanent magnets and one or more second permanent magnets; laminate teeth (64A, 64B, 66A, 66B) radially inward of the one or more intermediate permanent magnets; and a plurality of radial windings (34A, 34B, 36A, 36B), respectively encircling a respective associated tooth of the plurality of teeth.
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