Rotor for rotary electric machine

Details Rotor for rotary electric machine Rotor for rotary electric machine

2008-07-29

2008-07-29

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S156530, C310S156560

Reexamination Certificate

active

07405504

ABSTRACT:
A rotor for a rotary electric machine includes a rotor core made of magnetic material, and being in the form of a disk, and a plurality of magnet sets each including a pair of permanent magnets whose polarities are identical to each other. The magnet sets are arranged circumferentially in the rotor core so that the polarities of the magnet sets change alternately. The rotor core includes nonmagnetic portions each formed between adjacent two of the magnet sets.

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K. Sakai et al., “High Efficiency and High Performance Motor for Energy Saving in Systems”, 2001 IEEE Power Engineering Society, vol. 3 of 3, Jan. 28, 2001, pp. 1413-1418.

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