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1.发明申请Variable evaporator water flow compensation for leaving water temperature control 有权可变蒸发器水流补偿，用于离开水温控制公开(公告)号：US20100121495A1
公开(公告)日：2010-05-13
申请号：US12291244
申请日：2008-11-07
CPC分类号： F25B25/005 , F25B2339/047 , F25B2400/06
摘要： A method of controlling a refrigerant chiller system is particularly suited for chillers where the water being chilled (or some other liquid) flows through the chiller's evaporator at a flow rate that is variable and is not directly known. To effectively control the chiller and maintain the temperature of the water leaving the evaporator at a desired target temperature, the cooling capacity of the chiller's evaporator is estimated based the degree of valve opening of an expansion valve, a pressure differential across the expansion valve, and a change in enthalpy per unit mass of the refrigerant flowing through the evaporator. In some embodiments, the chiller system includes multiple refrigerant circuits that are hermetically isolated from each other.
摘要翻译： 控制制冷剂冷却器系统的方法特别适用于其中被冷却的水（或一些其它液体）以可变且不直接已知的流量流过冷却器蒸发器的冷却器。 为了有效地控制冷却器并将离开蒸发器的水的温度保持在期望的目标温度，冷却器蒸发器的冷却能力基于膨胀阀的打开程度，横跨膨胀阀的压差和 流过蒸发器的制冷剂每单位质量的焓变化。 在一些实施例中，冷却器系统包括彼此气密隔离的多个制冷剂回路。
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公开(公告)号：US5950443A
公开(公告)日：1999-09-14
申请号：US910957
申请日：1997-08-08
CPC分类号： F04C28/00 , F04C28/28 , F25B49/022 , F04C2270/19 , F25B1/047
摘要： A method of controlling compressor minimum capacity. The method comprises the steps of: measuring a first condition; comparing the first condition to a first setpoint to determine a first conditioned error; modulating compressor capacity relative to the first condition error; measuring a second condition; comparing the second condition to a second setpoint to determine a second condition error; and modulating compressor capacity relative to the second condition error if the magnitude of the second conditioned error is greater than the magnitude of the first conditioned error.
摘要翻译： 一种控制压缩机最小容量的方法。 该方法包括以下步骤：测量第一条件; 将所述第一条件与第一设定点进行比较以确定第一调节误差; 相对于第一条件误差调节压缩机容量; 测量第二个条件; 将所述第二条件与第二设定值进行比较以确定第二条件误差; 以及如果所述第二调节误差的大小大于所述第一调节误差的幅度，则相对于所述第二条件误差调制压缩机容量。
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公开(公告)号：US08393787B2
公开(公告)日：2013-03-12
申请号：US12928115
申请日：2010-12-03
申请人： Ronald W. Okoren , Jerry E. Brown , Joel C. VanderZee , Charles E. Nelson , Steven K. Klingemann , Jeffrey J. DeGroot
发明人： Ronald W. Okoren , Jerry E. Brown , Joel C. VanderZee , Charles E. Nelson , Steven K. Klingemann , Jeffrey J. DeGroot
CPC分类号： G01K1/16 , F04B39/02 , F04B39/0207 , G01F23/247 , G01K3/10
摘要： Two vertically offset thermistors for sensing a fluid such as oil and refrigerant in a compressor shell are monitored by a method that takes into account rapidly changing conditions within the shell. The system can determine the fluid's sump temperature, high/low liquid levels, and can determine whether the thermistors are sensing the fluid as a liquid, gas, or a mixture of the two, such as a foam or mist of liquid and gas. For greater accuracy, thermistor readings can be dithered and filtered to provide temperature or voltage values having more significant digits than the readings originally processed through a limited-bit A/D converter. For faster response, limited microprocessor time is conserved by sampling thermistor readings at strategic periods that enable the microprocessor to identify certain conditions and temperatures via simple delta-temperature ratios and undemanding equations rather than resorting to exponential functions or lookup tables to determine time constants.
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公开(公告)号：US20110075700A1
公开(公告)日：2011-03-31
申请号：US12928115
申请日：2010-12-03
申请人： Ronald W. Okoren , Jerry E. Brown , Joel C. VanderZee , Charles E. Nelson , Steven K. Klingemann , Jeffrey J. DeGroot
发明人： Ronald W. Okoren , Jerry E. Brown , Joel C. VanderZee , Charles E. Nelson , Steven K. Klingemann , Jeffrey J. DeGroot
IPC分类号： G01N25/00
CPC分类号： G01K1/16 , F04B39/02 , F04B39/0207 , G01F23/247 , G01K3/10
摘要： Two vertically offset thermistors for sensing a fluid such as oil and refrigerant in a compressor shell are monitored by a method that takes into account rapidly changing conditions within the shell. The system can determine the fluid's sump temperature, high/low liquid levels, and can determine whether the thermistors are sensing the fluid as a liquid, gas, or a mixture of the two, such as a foam or mist of liquid and gas. For greater accuracy, thermistor readings can be dithered and filtered to provide temperature or voltage values having more significant digits than the readings originally processed through a limited-bit A/D converter. For faster response, limited microprocessor time is conserved by sampling thermistor readings at strategic periods that enable the microprocessor to identify certain conditions and temperatures via simple delta-temperature ratios and undemanding equations rather than resorting to exponential functions or lookup tables to determine time constants.
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公开(公告)号：US20080250798A1
公开(公告)日：2008-10-16
申请号：US11786344
申请日：2007-04-11
申请人： Ronald W. Okoren , Jerry E. Brown , Joel C. VanderZee , Charles E. Nelson , Steven K. Klingemann , Jeffrey J. DeGroot
发明人： Ronald W. Okoren , Jerry E. Brown , Joel C. VanderZee , Charles E. Nelson , Steven K. Klingemann , Jeffrey J. DeGroot
CPC分类号： G01K1/16 , F04B39/02 , F04B39/0207 , G01F23/247 , G01K3/10
摘要： Two vertically offset thermistors for sensing a fluid such as oil and refrigerant in a compressor shell are monitored by a method that takes into account rapidly changing conditions within the shell. The system can determine the fluid's sump temperature, high/low liquid levels, and can determine whether the thermistors are sensing the fluid as a liquid, gas, or a mixture of the two, such as a foam or mist of liquid and gas. For greater accuracy, thermistor readings can be dithered and filtered to provide temperature or voltage values having more significant digits than the readings originally processed through a limited-bit A/D converter. For faster response, limited microprocessor time is conserved by sampling thermistor readings at strategic periods that enable the microprocessor to identify certain conditions and temperatures via simple delta-temperature ratios and undemanding equations rather than resorting to exponential functions or lookup tables to determine time constants.
摘要翻译： 用于感测压缩机壳体中的诸如油和制冷剂之类的流体的两个垂直偏移热敏电阻通过考虑壳体内快速变化的条件的方法来监测。 该系统可以确定流体的贮槽温度，高/低液位，并且可以确定热敏电阻是否将液体，气体或两者的混合物（例如泡沫或液体和气体雾）感测为流体。 为了获得更高的精度，可以对热敏电阻读数进行抖动和滤波，以提供比原始通过有限位A / D转换器处理的读数更有效数字的温度或电压值。 为了更快的响应，通过在战略时期采样热敏电阻读数可以节省有限的微处理器时间，从而使微处理器能够通过简单的δ-温度比和不重要的方程来识别某些条件和温度，而不是采用指数函数或查找表来确定时间常数。
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公开(公告)号：US07874724B2
公开(公告)日：2011-01-25
申请号：US11786344
申请日：2007-04-11
申请人： Ronald W. Okoren , Jerry E. Brown , Joel C. VanderZee , Charles E. Nelson , Steven K. Klingemann , Jeffrey J. DeGroot
发明人： Ronald W. Okoren , Jerry E. Brown , Joel C. VanderZee , Charles E. Nelson , Steven K. Klingemann , Jeffrey J. DeGroot
CPC分类号： G01K1/16 , F04B39/02 , F04B39/0207 , G01F23/247 , G01K3/10
摘要： Two vertically offset thermistors for sensing a fluid such as oil and refrigerant in a compressor shell are monitored by a method that takes into account rapidly changing conditions within the shell. The system can determine the fluid's sump temperature, high/low liquid levels, and can determine whether the thermistors are sensing the fluid as a liquid, gas, or a mixture of the two, such as a foam or mist of liquid and gas. For greater accuracy, thermistor readings can be dithered and filtered to provide temperature or voltage values having more significant digits than the readings originally processed through a limited-bit A/D converter. For faster response, limited microprocessor time is conserved by sampling thermistor readings at strategic periods that enable the microprocessor to identify certain conditions and temperatures via simple delta-temperature ratios and undemanding equations rather than resorting to exponential functions or lookup tables to determine time constants.
摘要翻译： 用于感测压缩机壳体中的诸如油和制冷剂之类的流体的两个垂直偏移热敏电阻通过考虑壳体内快速变化的条件的方法来监测。 该系统可以确定流体的贮槽温度，高/低液位，并且可以确定热敏电阻是否将液体，气体或两者的混合物（例如泡沫或液体和气体雾）感测为流体。 为了获得更高的精度，可以对热敏电阻读数进行抖动和滤波，以提供比原始通过有限位A / D转换器处理的读数更有效数字的温度或电压值。 为了更快的响应，通过在战略时期采样热敏电阻读数可以节省有限的微处理器时间，从而使微处理器能够通过简单的δ-温度比和不重要的方程来识别某些条件和温度，而不是采用指数函数或查找表来确定时间常数。
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公开(公告)号：US6161395A
公开(公告)日：2000-12-19
申请号：US480348
申请日：2000-01-10
IPC分类号： G01F23/28 , F04B39/02 , F16N29/00 , F16N29/04 , F25B1/047 , F25B31/00 , F25B49/02 , G01F1/74 , G01F23/292 , F25B31/02
CPC分类号： F16N29/04 , F04B39/0207 , F04B39/0215 , F04B2205/08 , F04B2207/03 , F16N29/00 , F16N2230/19 , F16N2260/04 , F25B1/047 , F25B31/004 , F25B2700/03 , F25B2700/04 , G01F1/74 , G01F23/2922 , G01F23/2925
摘要： A sensor system. The system comprises a binary sensor issuing a signal representative of a first or second condition; sampling circuitry, operatively connected to the binary sensor, for monitoring the number of transitions between the first and second conditions during a sampling period; integration circuitry for accumulating the sampled number of transitions over time; and signal generation circuitry for issuing an analog signal representative of the accumulated transitions.
摘要翻译： 传感器系统。 该系统包括发出代表第一或第二状态的信号的二进制传感器; 可操作地连接到二进制传感器的采样电路，用于在采样周期期间监测第一和第二条件之间的转换次数; 用于随时间累积采样数量的转换的积分电路; 以及信号发生电路，用于发出表示累积的转变的模拟信号。
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8.发明授权Fault determination test method for systems including an electronic expansion valve and electronic controller 失效包括电子膨胀阀和电子控制器在内的系统的故障测定方法
公开(公告)号：US5009075A
公开(公告)日：1991-04-23
申请号：US511706
申请日：1990-04-20
申请人： Ronald W. Okoren
发明人： Ronald W. Okoren
IPC分类号： G01R31/02
CPC分类号： G01R31/02 , Y10T137/8242
摘要： In a system for refrigeration and air conditioning including a microprocessor based electronic controller and an electronic expansion valve responsive to the controller, a fault determination test method for discovering operational faults in the controller and the valve. The test method further determines whether the failure is due to the valve or the controller to minimize servicing time by providing test results applicable to a logic table which indicates the failed component and the action to be taken by the service technician.
摘要翻译： 在一种用于制冷和空调的系统中，包括基于微处理器的电子控制器和响应于控制器的电子膨胀阀，用于发现控制器和阀门中的操作故障的故障确定测试方法。 测试方法还通过提供适用于指示故障组件的逻辑表的测试结果和由维修技术人员采取的动作来进一步确定故障是由于阀门还是由控制器引起的最小化维修时间。
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公开(公告)号：US08454229B2
公开(公告)日：2013-06-04
申请号：US12928113
申请日：2010-12-03
申请人： Ronald W. Okoren , Jerry E. Brown , Joel C. VanderZee , Charles E. Nelson , Steven K. Klingemann , Jeffrey J. DeGroot
发明人： Ronald W. Okoren , Jerry E. Brown , Joel C. VanderZee , Charles E. Nelson , Steven K. Klingemann , Jeffrey J. DeGroot
CPC分类号： G01K1/16 , F04B39/02 , F04B39/0207 , G01F23/247 , G01K3/10
摘要： Two vertically offset thermistors for sensing a fluid such as oil and refrigerant in a compressor shell are monitored by a method that takes into account rapidly changing conditions within the shell. The system can determine the fluid's sump temperature, high/low liquid levels, and can determine whether the thermistors are sensing the fluid as a liquid, gas, or a mixture of the two, such as a foam or mist of liquid and gas. For greater accuracy, thermistor readings can be dithered and filtered to provide temperature or voltage values having more significant digits than the readings originally processed through a limited-bit A/D converter. For faster response, limited microprocessor time is conserved by sampling thermistor readings at strategic periods that enable the microprocessor to identify certain conditions and temperatures via simple delta-temperature ratios and undemanding equations rather than resorting to exponential functions or lookup tables to determine time constants.
摘要翻译： 用于感测压缩机壳体中的诸如油和制冷剂之类的流体的两个垂直偏移热敏电阻通过考虑壳体内快速变化的条件的方法来监测。 该系统可以确定流体的贮槽温度，高/低液位，并且可以确定热敏电阻是否将液体，气体或两者的混合物（例如泡沫或液体和气体雾）感测为流体。 为了获得更高的精度，可以对热敏电阻读数进行抖动和滤波，以提供比原始通过有限位A / D转换器处理的读数更有效数字的温度或电压值。 为了更快的响应，通过在战略时期采样热敏电阻读数可以节省有限的微处理器时间，从而使微处理器能够通过简单的δ-温度比和不重要的方程来识别某些条件和温度，而不是采用指数函数或查找表来确定时间常数。
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10.发明授权Variable evaporator water flow compensation for leaving water temperature control 有权可变蒸发器水流补偿，用于离开水温控制公开(公告)号：US08132420B2
公开(公告)日：2012-03-13
申请号：US12291244
申请日：2008-11-07
IPC分类号： F25D17/00
CPC分类号： F25B25/005 , F25B2339/047 , F25B2400/06
摘要： A method of controlling a refrigerant chiller system is particularly suited for chillers where the water being chilled (or some other liquid) flows through the chiller's evaporator at a flow rate that is variable and is not directly known. To effectively control the chiller and maintain the temperature of the water leaving the evaporator at a desired target temperature, the cooling capacity of the chiller's evaporator is estimated based the degree of valve opening of an expansion valve, a pressure differential across the expansion valve, and a change in enthalpy per unit mass of the refrigerant flowing through the evaporator. In some embodiments, the chiller system includes multiple refrigerant circuits that are hermetically isolated from each other.
摘要翻译： 控制制冷剂冷却器系统的方法特别适用于其中被冷却的水（或一些其它液体）以可变且不直接已知的流量流过冷却器蒸发器的冷却器。 为了有效地控制冷却器并将离开蒸发器的水的温度保持在期望的目标温度，冷却器蒸发器的冷却能力基于膨胀阀的打开程度，横跨膨胀阀的压差和 流过蒸发器的制冷剂每单位质量的焓变化。 在一些实施例中，冷却器系统包括彼此气密隔离的多个制冷剂回路。
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