Rotary electrical machines
AssigneeThe Turbo Genset Company Limited
InventorsKeith Robert Pullen, Sameer Kulkarni
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Abstract
A rotary electrical machine comprising a rotor having a plurality of equi-angularly spaced magnets is disclosed. The rotor further comprises fan blades, which are advantageously arranged in pairs between adjacent magnets. Air that enters the rotor through the center thereof is impelled radially outwards by the fan blades cooling the magnets. In a further embodiment, a rotary electrical machine in accordance with the present teachings includes at least one concentrically mounted diffuser disc having a plurality of circumferentially disposed equi-angularly spaced diffuser fins. The diffuser fins convert velocity energy into pressure, improving pumping efficiency.
Claims17
An article comprising a rotor for an electrical machine, the rotor comprising a plurality of generally equi-angularly spaced magnets, the rotor further comprising a pair of fan blades located between a pair of said magnets, thereby forming means for impulsion of air away from the center of said rotor.
A rotary electrical machine comprising a rotor and a stator, the rotor comprising a plurality of magnets, the machine further comprising at least two diffuser fins for diffusing cooling air leaving the rotor, wherein each diffuser fin is mounted around or formed integrally with the circumference of a diffuser disc, the central portion of said disc being cut away.
Dependencies are inferred from the claim text.