Rotor for electric machine having a sleeve with segmented layers
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United States of America Patent
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Aug 21, 2012
Grant Date -
Jan 28, 2010
app pub date -
Jul 1, 2009
filing date -
Jul 28, 2008
priority date (Note) -
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Abstract
A rotor for an electrical machine includes an elongate rotor core assembly comprising a rotor core and a plurality of permanent magnets arranged in a plurality of rings around the rotor core. A composite sleeve resides around the rotor core assembly. The sleeve includes an outer layer and a segmented layer beneath the outer layer. The outer layer includes a plurality of discrete, non-overlapping circumferential bands of composite material positioned orthogonal to a longitudinal axis of the rotor core assembly.
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