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Cooling axial flow fan with reduced noise levels caused by swept laminar and/or asymmetrically staggered blades
Cooling axial flow fan with reduced noise levels caused by swept laminar and/or asymmetrically staggered blades
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机译:冷却轴流风扇,降低了由层流和/或不对称交错叶片产生的噪声
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摘要
An axial fan for a cooling blower of a vehicle engine has fins with leading and trailing edges, and aeroacoustic optimization is provided by each of the leading edges and trailing edges having a strong forward sweep followed by a strong backward sweep in the manner of a bird's wing or by a straight forward sweeps followed by a strong backward sweep.
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