发明名称 |
Propeller fan |
摘要 |
The present invention provides a propeller fan (1) having a blade trailing edge (3a) of a sawtooth shape, in which the flows on the negative pressure side and the pressure side of a blade join gradually, so that the velocity loss is decreased in the vicinity of the trailing edge (3a). As a result, the velocity gradient decreases and the generation of turbulence is reduced as compared with the conventional propeller fan, so that the noise is reduced and the fan efficiency is enhanced. <IMAGE>
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申请公布号 |
EP0711925(A1) |
申请公布日期 |
1996.05.15 |
申请号 |
EP19950117140 |
申请日期 |
1995.10.31 |
申请人 |
MITSUBISHI JUKOGYO KABUSHIKI KAISHA |
发明人 |
KONDO, FUMIO;TANIGUCHI, MASAMI;HAYASHI, MASATERU;ITO, AKIHIRO |
分类号 |
F04D29/66;F04D29/38;(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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