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8 条记录 (耗时 0.013 秒)

    System for reducing compressor noise
    2.
    发明授权
    System for reducing compressor noise 有权
    降低压缩机噪音的系统

    公开(公告)号：US08167540B2

    公开(公告)日：2012-05-01

    申请号：US12011822

    申请日：2008-01-30

    申请人： Robert Hans Schlinker ,  James C. Napier ,  David R. Polak ,  Ray-Sing Lin ,  Scott A. Liljenberg ,  Anthony C. Jones

    发明人： Robert Hans Schlinker ,  James C. Napier ,  David R. Polak ,  Ray-Sing Lin ,  Scott A. Liljenberg ,  Anthony C. Jones

    IPC分类号： F01D25/06

    CPC分类号： F04D29/666 ,  Y10S416/50

    摘要： A system for reducing compressor noise includes a rotor having a plurality of blades. The blades have a nominal geometry characterized by a blade parameter. At least some of the blades are mistuned, such that they differ from the nominal geometry by greater than a manufacturing tolerance in the blade parameter. The blades produce shock waves at a blade passing frequency, and the mistuned blades shift acoustic energy away from the blade passing frequency to multiple lower amplitude tones at other frequencies. The system is configurable to be deployed with an inlet silencer that preferentially absorbs acoustic energy at some of the shifted frequencies.

    摘要翻译： 一种用于降低压缩机噪声的系统包括具有多个叶片的转子。 叶片具有以叶片参数为特征的标称几何形状。 至少一些叶片失谐，使得它们与标称几何不同，大于叶片参数中的制造公差。 叶片以叶片通过频率产生冲击波，并且失谐的叶片将声能从叶片通过频率转移到其它频率处的多个较低振幅音调。 该系统可配置成与入口消声器一起部署，该消声器在某些偏移频率处优先吸收声能。

    System for reducing compressor noise
    3.
    发明申请
    System for reducing compressor noise 有权
    降低压缩机噪音的系统

    公开(公告)号：US20090191047A1

    公开(公告)日：2009-07-30

    申请号：US12011822

    申请日：2008-01-30

    申请人： Robert Hans Schlinker ,  James C. Napier ,  David R. Polak ,  Ray-Sing Lin ,  Scott A. Liljenberg ,  Anthony C. Jones

    发明人： Robert Hans Schlinker ,  James C. Napier ,  David R. Polak ,  Ray-Sing Lin ,  Scott A. Liljenberg ,  Anthony C. Jones

    IPC分类号： F04D29/66

    CPC分类号： F04D29/666 ,  Y10S416/50

    摘要： A system for reducing compressor noise includes a rotor having a plurality of blades. The blades have a nominal geometry characterized by a blade parameter. At least some of the blades are mistuned, such that they differ from the nominal geometry by greater than a manufacturing tolerance in the blade parameter. The blades produce shock waves at a blade passing frequency, and the mistuned blades shift acoustic energy away from the blade passing frequency to multiple lower amplitude tones at other frequencies. The system is configurable to be deployed with an inlet silencer that preferentially absorbs acoustic energy at some of the shifted frequencies.

    摘要翻译： 一种用于降低压缩机噪声的系统包括具有多个叶片的转子。 叶片具有以叶片参数为特征的标称几何形状。 至少一些叶片失谐，使得它们与标称几何不同，大于叶片参数中的制造公差。 叶片以叶片通过频率产生冲击波，并且失谐的叶片将声能从叶片通过频率转移到其它频率处的多个较低振幅音调。 该系统可配置成与入口消声器一起部署，该入口消声器在某些偏移频率处优先吸收声能。

    Sheave for an elevator system
    4.
    发明授权
    Sheave for an elevator system 有权

    公开(公告)号：US09630806B2

    公开(公告)日：2017-04-25

    申请号：US14401267

    申请日：2012-05-16

    申请人： John P. Wesson ,  Xiaomei Yu ,  David R. Polak

    发明人： John P. Wesson ,  Xiaomei Yu ,  David R. Polak

    IPC分类号： B66B15/04

    CPC分类号： B66B15/04

    摘要： A method for constructing an interface between a sheave and a coated belt or rope of an elevator system, includes determining the surface energy of a surface of a coated belt or rope; and selecting a sheave such that the sheave has a work of adhesion between the coated belt or rope and the sheave, the work of adhesion meeting a defined relationship with a work of adhesion threshold.

    SHEAVE FOR AN ELEVATOR SYSTEM
    6.
    发明申请
    SHEAVE FOR AN ELEVATOR SYSTEM 有权
    改变电梯系统

    公开(公告)号：US20150129366A1

    公开(公告)日：2015-05-14

    申请号：US14401267

    申请日：2012-05-16

    申请人： John P. Wesson ,  Xiaomei Yu ,  David R. Polak

    发明人： John P. Wesson ,  Xiaomei Yu ,  David R. Polak

    IPC分类号： B66B15/04

    CPC分类号： B66B15/04

    摘要： A method for constructing an interface between a sheave and a coated belt or rope of an elevator system, includes determining the surface energy of a surface of a coated belt or rope; and selecting a sheave such that the sheave has a work of adhesion between the coated belt or rope and the sheave, the work of adhesion meeting a defined relationship with a work of adhesion threshold.

    摘要翻译： 一种用于构造滑轮和电梯系统的涂覆带或绳索之间的界面的方法，包括确定涂覆的皮带或绳索的表面的表面能; 并且选择滑轮使得滑轮具有在涂覆的皮带或绳索和滑轮之间的粘合作用，粘合作用与粘合阈值的工作达成规定的关系。