COAST DOWN BUSHING FOR MAGNETIC BEARING SYSTEMS
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United States of America Patent
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Issued Date -
Jul 9, 2015
app pub date -
Apr 3, 2012
filing date -
May 17, 2011
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Abstract
A coast down bushing having a plurality of grooves formed in the inner radial surface thereof. Each groove is filled with a lubricating insert or plug to reduce the contact friction between a rotating shaft and the bushing during coast down or during a rotor shock event or excursion.
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