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Invention Publication
CN103185027A 单级或多级鼓风机以及该鼓风机用嵌套式蜗壳和/或叶轮 失效 - 权利终止

单级或多级鼓风机以及该鼓风机用嵌套式蜗壳和/或叶轮
Abstract:
一种单头或双头鼓风机，包括：支撑相对的第一轴端（258）和第二轴端（260）的鼓风机用马达组件（M），所述第一轴端（258）和第二轴端（260）具有分别连接到其上并分别封闭在第一蜗壳（247）和第二蜗壳（251）中的第一叶轮（244）和第二叶轮（248），其中所述第一蜗壳（247）连接到入口（264）且所述第二蜗壳（251）连接到出口（276）；所述鼓风机用马达组件（M）被支撑在底座外壳（238）中；在所述第一蜗壳（247）和第二蜗壳（251）之间的径向外部级间通道，其中所述第二蜗壳（251）至少部分地与径向外部级间气体通道大体上同轴嵌套。
Abstract(English):

A double-ended blower comprises a blower motor assembly (M) supporting opposed first (258) and second (260) shaft ends, the first (258) and second (260) shaft ends having respective first (244) and second (248) impellers attached thereto and enclosed within first (247) and second (251) volutes, respectively, wherein the first volute (247) is connected to an inlet (264) and the second volute (251) is connected to an outlet (276). The blower motor assembly (M) at least partially enclosed within a flexible sleeve, with a radially outer inter-stage gas path extending between the first (247) and second (251) volute, and radially inward of the flexible sleeve.

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