发明授权
- 专利标题: Propeller fan
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申请号: US16604727申请日: 2018-04-06
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公开(公告)号: US11333168B2公开(公告)日: 2022-05-17
- 发明人: Tooru Iwata , Hirotaka Tomioka
- 申请人: DAIKIN INDUSTRIES, LTD.
- 申请人地址: JP Osaka
- 专利权人: DAIKIN INDUSTRIES, LTD.
- 当前专利权人: DAIKIN INDUSTRIES, LTD.
- 当前专利权人地址: JP Osaka
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JPJP2017-080264 20170414
- 国际申请: PCT/JP2018/014727 WO 20180406
- 国际公布: WO2018/190267 WO 20181018
- 主分类号: F04D29/38
- IPC分类号: F04D29/38 ; F04D29/32
摘要:
In a blade of a propeller fan, an inclination angle (φ) is made by a straight line passing through an outer circumferential side end and an inner circumferential side end of a radial cross section of the blade with a second plane orthogonal to a center axis of a hub. In a blade end of the blade, one end in front of the other end viewed in the rotation direction of the propeller fan is a leading blade end, while the other end behind the leading blade end is a trailing blade end. The blade is shaped such that the inclination angle (φ) monotonically increases, in the direction from the intermediate position toward the trailing blade end, in an area extending from an intermediate position between the leading blade end and the trailing blade end to the trailing blade end.
公开/授权文献
- US20200158129A1 PROPELLER FAN 公开/授权日:2020-05-21
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