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Cooling fan with blades of decreasing height for rotating electrical machine, particularly motor vehicle alternator, has outer tips of principal blades lower than inner ends
Cooling fan with blades of decreasing height for rotating electrical machine, particularly motor vehicle alternator, has outer tips of principal blades lower than inner ends
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机译:用于旋转电机,尤其是汽车交流发电机的高度降低的叶片的冷却风扇,其主叶片的外端低于内端
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摘要
The fan has a first set of blades (30) forming ventilation passages (40) divergent toward the exterior. Some of these blades have decreasing height between inner and outer ends respectively. Some blades have the top edge folded over (60) to reduce secondary recirculation of air above the blades.
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