Rotor disc construction for use in an electrical machine
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United States of America Patent
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Mar 2, 1999
Grant Date -
N/A
app pub date -
Dec 6, 1996
filing date -
Dec 14, 1995
priority date (Note) -
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Abstract
A rotor disc for use in an electrical machine has circumferential rotor rims mounted thereon. The rotor rim comprises a row of alternate magnets and pole pieces. The magnets are tapered at their radially inner and outer extents and engage with correspondingly tapered surfaces on adjacent pole pieces to prevent relative physical movement therebetween. Each side of the radially inner and outer extents of the magnets may be tapered by a different amount to ensure correct orientation of the magnet polarity.
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