发明名称 |
Fan filter unit with sound-absorbing wedges |
摘要 |
A fan filter unit includes a housing having a side wall and a top wall with a bell mouth serving as an air inlet and an open bottom to which a filtering net is attached to serve as an air outlet. A centrifugal fan is arranged in the housing to drive the air from inlet. The fan assembly has an output port for driving an air flow toward the air outlet. A guide plate is arranged in the housing for guiding the air flow along the path from the fan assembly to the air outlet. A sound-absorbing structure including a plurality of wedge-shaped elements made of a sound-absorbing material is attached to the side wall. The wedge-shaped elements are arranged in a line for effectively reducing noise level caused by the operation of the fan assembly. A second line of wedge-shaped elements is optionally attached to the side wall with the wedge-shaped elements of the two lines alternating each other.
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申请公布号 |
US2002182060(A1) |
申请公布日期 |
2002.12.05 |
申请号 |
US20010862335 |
申请日期 |
2001.05.23 |
申请人 |
CHOU YA-WEN;JENG MING-SHAN;HOO MEEN-DOU;TSAU FANG-HEI |
发明人 |
CHOU YA-WEN;JENG MING-SHAN;HOO MEEN-DOU;TSAU FANG-HEI |
分类号 |
F04D29/66;F04D29/70;(IPC1-7):F04D29/66 |
主分类号 |
F04D29/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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