Other

Philip Totaro

Fang Deng

Seong Taek Lee

Joel A Hetrick

Daniel M Saban

Murtuza Lokhandwalla

Janne Kinnunen

Ghanshyam Shrestha

Exemplary embodiments advantageously enable use of the structure of an interior magnet machine to emulate the function of a synchronous reluctance machine. In exemplary embodiments, a rotor for an electric machine, comprises a first magnet, a second magnet, a first non-magnetic region located between a first end of the first magnet and a second end of the second magnet, the first non-magnetic region having a first magnetic permeability value, a second non-magnetic region located radially between the first magnet and an edge of the rotor, the second non-magnetic region having a second magnetic permeability value, the second magnetic permeability value being relatively lower than the first magnetic permeability value, and an intrusion extending radially from an edge of the rotor and into the first non-magnetic region. An azimuthal width of one of the non-magnetic regions is larger than the azimuthal width of the other non-magnetic region. In exemplary embodiments, the intrusion has at least one magnetic portion. In exemplary embodiments, the intrusion also has at least one non-magnetic portion. The intrusion could be completely non-magnetic, partially magnetic, or completely magnetic. The intrusion could be multi-segmented.

Permanent magnet rotor with intrusion

A rotor or stator hub for an electric machine includes a plurality of magnets arranged in a predetermined same pattern on a plurality of uniformly sized carrier plates. A plurality of permanent magnets are uniformly mounted on each of the carrier plates proximate a first edge of the carrier plate and spaced away from a second edge of the carrier plate. The carrier plates may be mounted on a rotor or stator hub in a predetermined configuration to create a plurality of axial array groups.

Low axial force permanent magnet machine and magnet assembly for permanent magnet machine

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Santa Barbara, CA, United States of America

Philip Totaro