Rotor for a line-start permanent-magnet motor

Details Rotor for a line-start permanent-magnet motor Rotor for a line-start permanent-magnet motor

1981-10-26

1983-09-20

Duggan, Donovan F.

Electrical generator or motor structure

Dynamoelectric

Rotary

310163, H02K 2112

Patent

active

044058730

ABSTRACT:
A rotor for a permanent magnet motor of the interior or embedded magnet type employs permanent magnet material in slots of two different widths in the rotor to bring the motor up to synchronous speed through hysteresis loss. During rotor rotation, the permanent magnet material in the thinner slots is driven completely about its hysteresis loop while the material in the wider slots experiences no polarity reversals.

REFERENCES:
patent: 3164735 (1965-01-01), Lichowsky
patent: 3181019 (1965-04-01), Pfister et al.

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