发明授权
- 专利标题: Fan shroud with built in noise reduction
- 专利标题(中): 风扇罩与内置降噪
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申请号: US10063151申请日: 2002-03-26
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公开(公告)号: US06896095B2公开(公告)日: 2005-05-24
- 发明人: Hemant S. Shah , John Stuart Hollingshead , John Wang , Prakash Tuljaram Thawani , Richard Charles Kosik , Mukesh Kumar
- 申请人: Hemant S. Shah , John Stuart Hollingshead , John Wang , Prakash Tuljaram Thawani , Richard Charles Kosik , Mukesh Kumar
- 申请人地址: US MI Dearborn
- 专利权人: Ford Motor Company
- 当前专利权人: Ford Motor Company
- 当前专利权人地址: US MI Dearborn
- 代理机构: Randy Tung & Assoc.
- 代理商 Carlos L. Hanze
- 主分类号: F01P5/06
- IPC分类号: F01P5/06 ; F04D29/58 ; F04D29/66 ; F15D1/02 ; A47B81/06
摘要:
The present invention is a system and method to significantly reduce noise associated with air-moving devices such as an axial flow fan using a fan shroud and barrel combination with built in silencers such as Helmholtz resonators. The invention can be applied to a variety of applications such as a thermal management system for a fuel cell powered vehicle. The resonator can be a hollow cavity in networks attached to an outer or inner barrel or shroud and tuned to reduce noise at predetermined noise frequency ranges within the airflow. The invention can also attach stator members on the inner surface of the outer barrel to further reduce noise. Additional sound absorbing material, such as steel wool, can be disposed within the resonator cavity.
公开/授权文献
- US20030183446A1 Fan shroud with built in noise reduction 公开/授权日:2003-10-02