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Rotary electric machine having auxiliary poles
   
Document Number
US Patent 6465925
Issued Date
October 15, 2002
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Abstract
A rotary electric machine includes a plurality of permanent magnet main poles disposed on an inner periphery of a yoke and a plurality of auxiliary poles respectively disposed between neighboring two of the main poles via magnet fixing members and a plurality of magnet fixing members. The magnet-fixing member is comprised of a U-bent elastic metal plate having a pair of circumferentially opposite walls that provides a pole space. The opposite walls are respectively bent inward at edges thereof in circumferentially opposite directions to be opposed to each other. The bent edges have and elastic projections and are separated at the axial ends to form an elastic retaining member. The auxiliary pole is inserted into the auxiliary pole space by opening the elastic retaining member.
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Number of Claims:
8
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Owner
Denso Corporation (Kariya,JP)
Published
October 15, 2002
Application Number
09/977,679
Filed
October 16, 2001
US Classification
310/156.16   310/154.14 310/154.16 310/154.17
Int'l Classification
H02K   1/12   (20060101)   H02K   1/17   (20060101)  
Assistant Examiner
Attorney/Law Firm
Priority Data
Oct 26, 2000 [JP] 2000-327290 Jan 22, 2001 [JP] 2001-013360
USPTO Field of Search
310/154   310/153   310/106   310/154.14   310/154.15   310/154.17   310/156.16  
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