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    Method and apparatus for reducing high-cycle fatigue and suppressing noise in rotating machinery

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    6027305.pdf (736.0Kb)
    Downloads: 46
    Publication Date
    2000-02-22
    Filing Date
    1998-08-05
    Inventor
    Ng, Wing Fai
    Leitch, Thomas A.
    Saunders, Christopher A. II
    Metadata
    Show full item record
    Abstract
    A stator apparatus for mounting upstream of an intake to a rotating machine which blows pressurized air, or other media, from discharge orifices at a pressure and velocity to minimize velocity defects or turbulence in the wake of the stator prior to the plane of rotation of a rotating member of the machine. The rotating member then encounters a substantially uniform velocity medium at the plane of incidence, which substantially reduces uneven loading on the rotating member, thereby reducing noise and reducing high-cycle failure of that rotating element. The distribution and size of the orifices is determinable by placing the stator apparatus in a wind tunnel, or on the intake of a apparatus simulating the intake of the rotating machine, measuring the turbulence or velocity defects in the stator wake, and modifying the distribution and size of the orifices until the turbulence is minimized.
    Assignee
    Virginia Tech Intellectual Properties, Inc.
    Patent Number
    6027305
    Application Number
    9129417
    Source URL
    http://pimg-fpiw.uspto.gov/fdd/05/273/060/0.pdf
    Primary/U.S. Class
    415/119
    Other/U.S. Class
    415/1
    415/30
    415/36
    415/44
    415/115
    415/116
    415/118
    415/142
    415/914
    CPC Class
    F02C7/045
    F04D29/667
    F05D2260/96
    F05D2270/102
    Y10S415/914
    Patent Type
    utility
    URI
    http://hdl.handle.net/10919/72409
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    • Virginia Tech Patents [687]

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