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发明名称
Axial flow ring fan
摘要
An axial flow ring fan has improved efficiency and reduced noise by making the leading edge of each blade a generally sinusoidal shape.
申请公布号
US4900229(A)
申请公布日期
1990.02.13
申请号
US19890359241
申请日期
1989.05.30
申请人
SIEMENS-BENDIX AUTOMOTIVE ELECTRONIC LIMITED
发明人
BRACKETT, STEPHEN E.;CHARLES, HERBERT N.
分类号
F04D29/38;F04D29/32
主分类号
F04D29/38
代理机构
代理人
主权项
地址
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