Rotor analyzer for an induction motor

    公开(公告)号:US06650122B2

    公开(公告)日:2003-11-18

    申请号:US10256126

    申请日:2002-09-25

    CPC classification number: G01R31/34

    Abstract: A rotor analyzer for an induction motor or generator checks and quantifies the integrity of a rotor that is not currently installed within its stator. The analyzer includes an electromagnetic coil that exposes the bars of a rotor to a pulsating magnetic field to induce a current through the bars. At the same time, the rotor is slowly rotated to sequentially expose each bar. A magnetic field created by the induced current in the bars induces an analog signal within a search coil. The analog signal is converted to digital and inputted to a microprocessor system. The system interprets the input data and manipulates it to provide a clear, understandable indication of the rotor's condition, such as the relative impendence of each bar. The system also determines how many bars are within a rotor having an unknown number of bars.

    Multi-layer reactive sputtering method with reduced stabilization time
    2.
    发明授权
    Multi-layer reactive sputtering method with reduced stabilization time 失效
    减少稳定时间的多层反应溅射法

    公开(公告)号:US06217720B1

    公开(公告)日:2001-04-17

    申请号:US08867789

    申请日:1997-06-03

    CPC classification number: C23C14/548 C23C14/568

    Abstract: A method is described for depositing a complex optical multilayer coating on a substrate. The coating consists of multiple layers of at least two material types. The layers are sequentially deposited in a deposition chamber by reactive deposition; preferably sputtering, and the thickness of the deposited layers is determined one or more times during the layer deposition by taking optical measurements of the deposited layer and fitting theoretical values derived from a model of the deposited layers to the corresponding actual values obtained from said measurements. A process variable is continually controlled to ensure homogeneity of the deposited layers so that a valid thickness determination can be made from said theoretical model.

    Abstract translation: 描述了一种在衬底上沉积复杂的光学多层涂层的方法。 涂层由至少两种材料类型的多层组成。 这些层通过反应性沉积顺序地沉积在沉积室中; 优选溅射,并且在层沉积期间通过对沉积层进行光学测量并将从沉积层的模型导出的理论值拟合到从所述测量获得的相应实际值来确定沉积层的厚度一次或多次。 连续地控制过程变量以确保沉积层的均匀性,从而可以从所述理论模型进行有效的厚度确定。

    Refrigeration system thermal purge apparatus
    3.
    发明授权
    Refrigeration system thermal purge apparatus 失效
    制冷系统热净化装置

    公开(公告)号:US5031410A

    公开(公告)日:1991-07-16

    申请号:US482592

    申请日:1990-02-21

    CPC classification number: F25B43/043 F25B45/00

    Abstract: Thermal purge apparatus for a chiller removes air, moisture and other non-condensibles from the chiller system refrigerant by causing chiller system refrigerant vapor to condense in a purge tank as a result of its undergoing a heat exchange relationship with a second and different refrigerant employed in a discrete purge refrigeration circuit. Chiller refrigerant circulates from the chiller condenser to, through and out of the purge tank in a free-flowing circulatory manner as a result of temperature and pressure gradients which develop between the interiors of the chiller condenser and the purge tank when the purge apparatus is in operation.

    Abstract translation: 冷冻机的热净化装置通过使冷却器系统制冷剂蒸气在净化罐中冷凝而从冷却器系统制冷剂中除去空气,水分和其它不可冷凝物,由于其与第二和不同制冷剂的热交换关系 一个离散的清洗制冷回路。 冷冻机制冷剂从冷却器冷凝器循环到通过循环的自由流动的清洗箱中,由于在清洗装置处于冷却器冷凝器和净化罐之间时在冷却器冷凝器和净化箱的内部之间产生的温度和压力梯度 操作。

    Purge
    4.
    发明授权
    Purge 有权
    清除

    公开(公告)号:US06647736B2

    公开(公告)日:2003-11-18

    申请号:US10438616

    申请日:2003-05-15

    CPC classification number: F25B43/043

    Abstract: A purging device for a system accumulating condensable and non-condensable gases. The purging device comprises: a purge tank; apparatus receiving the condensable and non-condensable gases from the system and directing said gases into the purge tank; apparatus condensing the non-condensable gases into a condensed form; apparatus accumulating the non-condensable gases in a header space; apparatus returning the condensed gases from the purge tank to the system; apparatus controllably removing the accumulated non-condensable gases from the header space; and apparatus generating controlled flow in the condensable and non-condensable gases.

    Abstract translation: 用于积聚可冷凝和不可冷凝气体的系统的清洗装置。 净化装置包括:净化罐; 从系统接收可冷凝和不可冷凝气体并将所述气体引导到净化罐中的装置; 将不可冷凝气体冷凝成冷凝形式的装置; 装置在集合空间中积聚不凝气体; 将冷凝气体从净化箱返回到系统的装置; 设备可控制地从集管空间去除积聚的不可冷凝气体; 以及在可冷凝和不可冷凝气体中产生受控流动的装置。

    Sizing and control of fresh air dehumidification unit
    5.
    发明授权
    Sizing and control of fresh air dehumidification unit 失效
    新鲜空气除湿装置的尺寸和控制

    公开(公告)号:US06170271B2

    公开(公告)日:2001-01-09

    申请号:US09118029

    申请日:1998-07-17

    CPC classification number: F24F3/153 F24F2003/144

    Abstract: A fresh air unit. The unit comprises: a housing having an airstream flowing therethrough; a pre-cooling portion, and dehumidification portion. The pre-cooling portion is located within the housing and reduces the temperature and specific humidity of a gas in the airstream to a target zone on a psychrometric chart. The dehumidification portion is also located in the housing downstream of the pre-cooling portion. The dehumidification portion removes a selected amount of moisture from the gas and reheats the gas a selected amount of sensible heat gain.

    Abstract translation: 一个新鲜空气的单位。 该单元包括:具有流过其中的气流的壳体; 预冷却部分和除湿部分。 预冷部分位于壳体内,并将气流中的气体的温度和比湿度降低到气湿计上的目标区域。 除湿部分也位于预冷部分下游的壳体中。 除湿部分从气体中除去选定量的水分,并使气体再加热一定量的显热增益。

    Optical storage media having visible logos
    6.
    发明授权
    Optical storage media having visible logos 失效
    具有可见标志的光学存储介质

    公开(公告)号:US5510163A

    公开(公告)日:1996-04-23

    申请号:US245699

    申请日:1994-05-18

    Abstract: An optical recording medium for storing data is provided having a visible logo on a read side of the medium for providing some anticounterfeiting protection. A logo coating for producing the visible logo is carded by the read-side of the substrate; the coating has a sufficiently high transmittance at a read or write wavelength such that light at the read or write wavelength passing through the logo coating toward the other side of the substrate and reflected back through the logo is substantially transmitted and unchanged by the coating so that the data can be detected as well the coating is sufficiently light absorbing in the visible spectrum such that there is a visible contrast between the recording coating and the logo coating. In another embodiment, the logo coating forms a portion of a reflective recording layer on the other non-read side of the substrate. In this case, the logo coating is visually distinguishable from the rest of the recording layer and is made of a different material. For example, the logo may be gold and the rest of the recording layer may be aluminum, or vice versa.

    Abstract translation: 提供一种用于存储数据的光学记录介质,其具有在介质的读取侧上的可见标识,用于提供一些防伪保护。 用于生产可见标识的标志涂层由基板的读取面梳理; 涂层在读或写波长处具有足够高的透射率,使得通过标识涂层的读取或写入波长的光朝向基板的另一侧并通过标识反射回来的光通过涂层基本上透射和改变,使得 可以检测数据,涂层在可见光谱中足够的光吸收,使得在记录涂层和标志涂层之间存在可见的对比度。 在另一个实施例中,徽标涂层在衬底的另一非读取侧上形成反射记录层的一部分。 在这种情况下,标志涂层在视觉上与记录层的其余部分可分辨,并且由不同的材料制成。 例如,标识可以是金,并且记录层的其余部分可以是铝,反之亦然。

    Control method and apparatus for a centrifugal chiller using a variable
speed impeller motor drive
    7.
    发明授权
    Control method and apparatus for a centrifugal chiller using a variable speed impeller motor drive 失效
    使用变速叶轮电机驱动的离心式制冷机的控制方法和装置

    公开(公告)号:US5355691A

    公开(公告)日:1994-10-18

    申请号:US107391

    申请日:1993-08-16

    Abstract: A controller for controlling the capacity of a centrifugal chiller compressor. The compressor is driven by an electric motor and has variable inlet guide vanes that control the flow of refrigerant to the compressor. The controller establishes a dimensionless plot of possible points of compressor operation relating the pressure coefficient and the capacity coefficient of the compressor. The current operating point of the centrifugal compressor is located on the plot and a dynamic surge boundary control curve is positioned proximate a region of actual surge. Control is exercised responsive to the variations of the region of actual surge and the surge boundary control curve for controlling compressor capacity by varying the opening of the inlet guide vanes and varying the speed of the compressor to move the operating point of the compressor proximate the surge boundary control curve.

    Abstract translation: 用于控制离心冷却器压缩机的容量的控制器。 压缩机由电动机驱动,并具有可变的入口导向叶片,其控制制冷剂到压缩机的流动。 控制器建立与压缩系数和压缩机的容量系数有关的压缩机运行可能点的无量纲图。 离心压缩机的当前工作点位于图上,动态浪涌边界控制曲线位于实际浪涌区域附近。 通过改变入口导向叶片的开口并改变压缩机的速度以使压缩机的工作点靠近喘振的速度来响应于实际浪涌区域的变化和浪涌边界控制曲线来控制压缩机容量的控制 边界控制曲线。

    Purge
    9.
    发明授权
    Purge 有权
    清除

    公开(公告)号:US06705100B2

    公开(公告)日:2004-03-16

    申请号:US10438617

    申请日:2003-05-15

    CPC classification number: F25B43/043

    Abstract: A purging device for a system accumulating condensable and non-condensable gases. The purging device comprises: a purge tank; apparatus receiving the condensable and non-condensable gases from the system and directing said gases into the purge tank; apparatus condensing the non-condensable gases into a condensed form; apparatus accumulating the non-condensable gases in a header space; apparatus returning the condensed gases from the purge tank to the system; apparatus controllably removing the accumulated non-condensable gases from the header space; and apparatus generating controlled flow in the condensable and non-condensable gases.

    Abstract translation: 用于积聚可冷凝和不可冷凝气体的系统的清洗装置。 净化装置包括:净化罐; 从系统接收可冷凝和不可冷凝气体并将所述气体引导到净化罐中的装置; 将不可冷凝气体冷凝成冷凝形式的装置; 装置在集合空间中积聚不凝气体; 将冷凝气体从净化箱返回到系统的装置; 设备可控制地从集管空间去除积聚的不可冷凝气体; 以及在可冷凝和不可冷凝气体中产生受控流动的装置。

    Rotor analyzer for an induction motor
    10.
    发明授权
    Rotor analyzer for an induction motor 失效
    转子分析仪用于感应电动机

    公开(公告)号:US06459276B1

    公开(公告)日:2002-10-01

    申请号:US09631075

    申请日:2000-08-02

    CPC classification number: G01R31/34

    Abstract: A rotor analyzer for an induction motor or generator checks and quantifies the integrity of a rotor that is not currently installed within its stator. The analyzer includes an electromagnetic coil that exposes the bars of a rotor to a pulsating magnetic field to induce a current through the bars. At the same time, the rotor is slowly rotated to sequentially expose each bar. A magnetic field created by the induced current in the bars induces an analog signal within a search coil. The analog signal is converted to digital and inputted to a microprocessor system. The system interprets the input data and manipulates it to provide a clear, understandable indication of the rotor's condition, such as the relative impendence of each bar. The system also determines how many bars are within a rotor having an unknown number of bars.

    Abstract translation: 用于感应电动机或发电机的转子分析器检查并量化当前未安装在其定子内的转子的完整性。 分析仪包括电磁线圈,其将转子的杆暴露于脉动磁场以诱导通过杆的电流。 同时,转子缓慢旋转以顺序地暴露每个条。 由棒中的感应电流产生的磁场在搜索线圈内产生模拟信号。 模拟信号转换为数字信号并输入到微处理器系统。 系统解释输入数据并对其进行操作,以提供转子状态的清晰可理解的指示,例如每个条的相对阻力。 该系统还确定具有未知数量的条的转子内有多少条。

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