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1. 发明授权

US5540548A Redundant blower unit 失效
标题翻译：冗余风机单元
公开(公告)号：US5540548A
公开(公告)日：1996-07-30
申请号：US415176
申请日：1995-03-31
申请人： Anthony N. Eberhardt , Eddie Y. Wong , Chin Y. Cheng , Mario J. Lee
发明人： Anthony N. Eberhardt , Eddie Y. Wong , Chin Y. Cheng , Mario J. Lee
IPC分类号： F04D25/16 , F04D17/00
CPC分类号： F04D25/166
摘要： A redundant blower unit is installed in a rack above another unit containing heat-emitting electrical elements (such as CPU cards) in order to draw air through the underlying unit and out to atmosphere. Four blowers in the blower unit draw air from a plenum, each blower discharging into an individual exhaust duct leading to the exterior. Two blowers are positioned at a first tier relative to the bottom of the plenum and the other two at a second tier higher than the first tier. If one blower fails, its exhaust duct may malfunction as an air inlet, in which case the incoming air is mixed with exhaust air and discharged through the other blower in the same tier as the failed blower. Thus the efficiency of the two blowers in the other tier is not impeded.
摘要翻译：冗余吹风机单元安装在另一个装有发热电气元件（如CPU卡）的单元上方的机架中，以便通过下层单元吸入空气并进入大气。鼓风机组中的四个鼓风机从气室吸入空气，每个鼓风机排放到通向外部的各个排气管道中。两个鼓风机相对于增压室的底部定位在第一层，而另外两个鼓风机位于高于第一层的第二层。如果一个鼓风机发生故障，其排气管道可能作为进气口发生故障，在这种情况下，进入的空气与排气混合，并通过与失效鼓风机相同层级的其他鼓风机排出。因此，另一层的两台鼓风机的效率不受阻碍。

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