发明授权
- 专利标题： Electrostatic control of air flow to the inlet opening of an axial fan
- 专利标题（中）： 静电控制空气流向轴流风扇的入口
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申请号： US12855737申请日： 2010-08-13
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公开(公告)号： US08444754B2公开(公告)日： 2013-05-21
- 发明人: Michael S. June , Chunjian Ni , Mark E. Steinke
- 申请人： Michael S. June , Chunjian Ni , Mark E. Steinke
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 代理商 Cynthia G. Seal; Jeffrey L. Streets
- 主分类号： B03C3/36
- IPC分类号： B03C3/36 ; B03C3/41 ; B03C3/49
摘要：
An air moving apparatus includes an axial fan and an electrostatic device. The axial fan has a rotatable shaft defining a central axis of the axial fan, a plurality of blades secured to the shaft, and an air inlet opening. The electrostatic device is disposed immediately upstream of the air inlet opening of the axial fan, and includes a collector and an emitter. In one embodiment, the electrostatic device includes a cylindrical collector coupled to ground and has a central axis aligned with the central axis of the axial fan. The electrostatic device further includes a plurality of emitter wires coupled to a terminal of a direct current source and extending lengthwise within the cylindrical collector. During operation of the axial fan, the application of an electrical potential between an emitter and a collector causes ionic air movement radially outwardly away from a central axis of the axial fan.