Invention Grant
- Patent Title: Counter-rotating axial flow fan
- Patent Title (中): 反向旋转轴流风机
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Application No.: US12967200Application Date: 2010-12-14
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Publication No.: US08690528B2Publication Date: 2014-04-08
- Inventor: Chisachi Kato , Atsushi Yamaguchi , Akira Ueda , Kazuhiro Nitta , Akihiro Otsuka, Sr. , Tadashi Katsui , Masahiro Suzuki , Yoshihiko Aizawa , Honami Oosawa
- Applicant: Chisachi Kato , Atsushi Yamaguchi , Akira Ueda , Kazuhiro Nitta , Akihiro Otsuka, Sr. , Tadashi Katsui , Masahiro Suzuki , Yoshihiko Aizawa , Honami Oosawa
- Applicant Address: JP Tokyo JP Tokyo JP Kawasaki-Shi
- Assignee: The University of Tokyo,Sanyo Denki Co., Ltd.,Fujitsu Limited
- Current Assignee: The University of Tokyo,Sanyo Denki Co., Ltd.,Fujitsu Limited
- Current Assignee Address: JP Tokyo JP Tokyo JP Kawasaki-Shi
- Agency: Rankin, Hill & Clark LLP
- Priority: JP2009-283287 20091214
- Main IPC: F04D29/44
- IPC: F04D29/44
Abstract:
A counter-rotating axial flow fan in which the shape of stationary blades of a middle stationary portion is optimized to reduce noise is provided. Defining the maximum axial chord length of front blades as Lf, the maximum axial chord length of rear blades as Lr, and the maximum axial chord length of stationary blades as Lm, a relationship of Lm/(Lf+Lr) 5.8.
Public/Granted literature
- US20110142612A1 COUNTER-ROTATING AXIAL FLOW FAN Public/Granted day:2011-06-16
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