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L-shaped magnetic thrust bearing
   
Document Number
US Patent 6008558
Issued Date
December 28, 1999
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Abstract
An electromagnetic thrust bearing having reduced windage losses, improved structural integrity, and enhanced electromagnetic flux density. The present invention provides an electromagnetic thrust bearing having a first annular stator segment and a second annular stator segment joined thereto to define an annular electromagnetic coil chamber having an L-shaped cross-section. By employing first and second stator segments, the electromagnetic coil can be precision wound onto one segment without interference from the other segment, and then the two segments can be joined after the precision winding has been performed. The first segment is joined to the second segment at a location remote from the stator poles to thereby provide a more structurally sound assembly able to better withstand loads imposed thereon. The stator segment pole faces include axially extending lips to maximize electromagnetic flux density and thus load carrying capacity.
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Number of Claims:
17
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Owner
Sundstrand Corporation (Rockford, IL)
Published
December 28, 1999
Application Number
09/154,902
Filed
September 17, 1998
US Classification
310/90.5  
Int'l Classification
F16C   39/00   (20060101)   F16C   39/06   (20060101)   H02K   7/09   (20060101)  
Examiner
Assistant Examiner
Attorney/Law Firm
USPTO Field of Search
310/90.5  
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