| 摘要 |
Disclosed herein is a rotor assembly for an electric machine including a stationary shaft, a first bearing, a second bearing, a first pole segment, a second pole segment, a first internal fan, and a second internal. The first bearing is positioned at a first end of the shaft. The second bearing is positioned at a second end of the shaft. The first pole segment is supported by the first bearing and is rotatable about the shaft. The second pole segment is supported by the second bearing and is rotatable about the shaft. The first internal fan is attached to the first pole segment. And, the second internal fan is attached to the second pole segment.
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