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Radial flow fan with impeller having blade configuration for noise reduction
Radial flow fan with impeller having blade configuration for noise reduction
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机译:带有叶轮的叶轮径向流风扇可降低噪音
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摘要
A debris blower with a radial flow fan having an impeller that includes a set of impeller blades that are spaced about a rotary axis of the impeller in a predetermined manner such that at least two spacing angles are used to space the impeller blades circumferentially apart from one another. The use of a plurality of spacing angles operates to distribute the noise that is generated by the rotating impeller blades over several tones or frequencies.
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