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    • 2. 发明授权
    • Blower with an improved shroud assembly
    • 鼓风机具有改进的护罩组合
    • US5460485A
    • 1995-10-24
    • US218940
    • 1994-03-28
    • Toshiki SugiyamaYoshitake Hoshino
    • Toshiki SugiyamaYoshitake Hoshino
    • F01P11/10F04D29/66F04D29/70F04D29/54
    • F04D29/703F04D29/663Y10S425/058
    • A blower having an axial fan driven by a rotating drive source and enclosed by a shroud assembly including a substantially cylindrical fan shroud enclosing an outer circumference of the axial fan, and a protective unit provided with a plurality of support beams extending from the fan shroud toward an air intake side of the blower and cooperating with a plurality of ring-like members so as to form a protective net member for preventing entrance of any unfavorable substances such as foreign matter or a human finger into the shroud assembly, and a plurality of support ribs operating as a physical rib members and as protective members preventing entrance of the unfavorable substances from a radially outer region of the blower into the interior of the shroud assembly. The support ribs are arranged so as to provide a large spacing between the ribs and the outer circumference of the axial fan to thereby reduce generation of turbulence of the intake air resulting in a lowering of the hissing or whistling sound of the air flowing across the support ribs and through the axial fan.
    • 一种鼓风机,其具有由旋转的驱动源驱动的轴流风扇,并由包括围绕所述轴流风扇的外周的大致圆筒形风扇罩的护罩组件包围,以及保护单元,该保护单元设置有从所述风扇罩延伸的多个支撑梁 鼓风机的吸气侧,与多个环状构件配合,形成用于防止任何不利物质(例如异物或人指)进入护罩组件的防护网构件,以及多个支撑件 作为物理肋构件的肋作为防止不利物质从鼓风机的径向外部区域进入到护罩组件的内部的保护构件。 支撑肋布置成在肋与肋扇的外圆周之间提供大的间隔,从而减少进气的湍流的产生,导致流过支撑件的空气的嘶嘶声或口哨声的降低 肋骨通过轴流风扇。