| US 7,514,827 B2 | ||
| Self-cooled rotor for an electrical machine | ||
| Justin Arthur Hall, Weybridge (United Kingdom) | ||
| Assigned to Turbo Power Systems Limited, (United Kingdom) | ||
| Filed on Sep. 29, 2006, as Appl. No. 11/540,456. | ||
| Claims priority of application No. 0520013.4 (GB), filed on Oct. 01, 2005. | ||
| Prior Publication US 2007/0075596 A1, Apr. 05, 2007 | ||
| Int. Cl. H02K 1/32 (2006.01) | ||
| U.S. Cl. 310—61 [310/64] | 10 Claims |
| 1. A rotor for an electric machine, comprising:
a main body;
one or more magnetic field generators arranged around the outer periphery of the main body;
a first channel extending axially into the main body from at least one end to a central region; and
one or more second channels extending radially outwardly between said first channel and a radially outer surface of the rotor
for communicating cooling fluid therebetween;
one or more third channels, each extending axially into the rotor from one or the other end of the rotor and arranged in proximity
to the magnetic field generator; and
one or more fourth channel in the central region, each extending radially outwardly between said first channel and a respective
third channel for communicating cooling fluid therebetween.
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