Rotor for vehicular electric rotary machine, vehicular electric rotary machine using such rotor and related manufacturing methods
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United States of America Patent
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Aug 4, 2009
Grant Date -
Jan 24, 2008
app pub date -
May 1, 2007
filing date -
Jul 21, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A rotor for a vehicular electric rotary machine, a vehicular electric rotary machine using such a rotor, a method of manufacturing a rotor of a vehicular electric rotary machine and a method of manufacturing a vehicular electric rotary machine are disclosed. The rotor includes front and rear pole cores having disc portions, radially extending from boss portions supported with a rotary shaft and carrying thereon a field coil, which have claw-shaped poles which are circumferentially spaced from each other at equidistant intervals. The claw-shaped poles have flange portions circumferentially facing with each other for retaining permanent magnets and magnet holding members in circumferentially and equidistantly spaced positions. Each disc portion has a pair of stepped portions formed to be contiguous with the flange portions to restrict axial end faces of the permanent magnet and the magnet holding member in circumferential, radial and axial directions.
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