Equipmake Limited

Aim Co., Ltd.

Rob Williamson

Ian Foley

Michio Kawamoto

Yoshitoshi Sakurai

Martin Ogilvie

Angel Asorey Blasquez

A stator and a rotor suitable for use in an electric motor or generator. The stator comprises a plurality of stator cons and a support for holding the coils around a rotor of the motor. A cylindrical sleeve is mounted radially inwardly on the support to form a barrier in use between cooling fluid passing over the coils and a rotor located within the stator. The rotor comprises a hub, a plurality of rotor segments, and a plurality of permanent magnets. The segments are arranged around the hub in a ring, with the permanent magnets disposed between the segments. A radially outwardly facing exposed surface of each magnet is spaced radially inwardly from an outer cylindrical profile defined by the segments.

Stator for an electric motor and cooling thereof

A hub for a rotor of a permanent magnet motor comprises fluid conduits which extend radially outwardly to a region radially beneath each magnet of the motor and then radially inwardly. A rotor of a permanent magnet motor is also provided which includes a hub body having a plurality of lugs on an outer circumferential surface of the hub body, each lug substantially consisting of a tapered base portion and a head portion. The maximum width of the base portion of each lug in the circumferential direction substantially corresponds to the circumferential distance between the adjacent permanent magnets. Furthermore, a rotor of a permanent magnet motor comprises rotor segments having axially extending grooves defined in a radially extending sidewall of each rotor segment.

Rotor for an electric motor

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Snetterton, United Kingdom

Rob Williamson