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1. 发明授权

US5537830A Control method and appartus for a centrifugal chiller using a variable speed impeller motor drive 失效
标题翻译：使用变速叶轮电机驱动的离心式冷水机的控制方法和附件
公开(公告)号：US5537830A
公开(公告)日：1996-07-23
申请号：US345149
申请日：1994-11-28
申请人： Craig M. Goshaw , Brian T. Sullivan , Paul C. Rentmeester
发明人： Craig M. Goshaw , Brian T. Sullivan , Paul C. Rentmeester
IPC分类号： F04D27/02 , F25B1/053 , F25B49/02 , F25D17/02
CPC分类号： F04D27/0261 , F04D27/0284 , F25B1/053 , F25B49/022 , F25B2600/021 , Y02B30/741
摘要： A method of controlling the operation of a centrifugal compressor in a water chiller system. The compressor's capacity is variable by modulating its speed of rotation or by modulating its inlet guide vane's position. The water chiller includes an evaporator having a leaving water temperature. The method comprises the steps of: monitoring the leaving water temperature; determining if the leaving water temperature is in a steady state; modulating the compressor capacity by modulating speed of rotation if the leaving water temperature is in a steady state; and modulating the compressor capacity by modulating inlet guide vane position if the leaving water temperature is not in a steady state.
摘要翻译：一种控制水冷却器系统中的离心压缩机的操作的方法。压缩机的容量通过调节其旋转速度或通过调节其入口导向叶片的位置而变化。水冷却器包括具有离开水温的蒸发器。该方法包括以下步骤：监测离开水温; 确定离开水温度是否处于稳定状态; 如果离开水温处于稳定状态，则通过调节旋转速度来调节压缩机容量; 并且如果离开水温度不处于稳定状态，则通过调节入口引导叶片位置来调节压缩机容量。

2. 发明授权

US5355691A Control method and apparatus for a centrifugal chiller using a variable speed impeller motor drive 失效
标题翻译：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
申请人： Brian T. Sullivan , Craig M. Goshaw , Paul C. Rentmeester
发明人： Brian T. Sullivan , Craig M. Goshaw , Paul C. Rentmeester
IPC分类号： F04D27/02 , F25B1/053 , F25B49/02 , F25B1/00 , F04B49/00
CPC分类号： F04D27/0261 , F04D27/0284 , F25B1/053 , F25B49/022 , F25B2600/021 , Y02B30/741
摘要： 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.
摘要翻译：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。

3. 发明授权

US5553997A Control method and apparatus for a centrifugal chiller using a variable speed impeller motor drive 失效
标题翻译：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：US5553997A
公开(公告)日：1996-09-10
申请号：US586417
申请日：1996-01-16
申请人： Craig M. Goshaw , Brian T. Sullivan , Paul C. Rentmeester
发明人： Craig M. Goshaw , Brian T. Sullivan , Paul C. Rentmeester
IPC分类号： F04D27/02 , F25B1/053 , F25B49/02
CPC分类号： F04D27/0261 , F04D27/0284 , F25B1/053 , F25B49/022 , F25B2600/021 , Y02B30/741
摘要： A method of controlling the operation of a centrifugal compressor in a water chiller system. The compressor's capacity is variable by modulating its speed of rotation or by modulating its inlet guide vane's position. The water chiller includes an evaporator having a leaving water temperature. The method comprises the steps of: monitoring the leaving water temperature; determining if the leaving water temperature is in a steady state; modulating the compressor capacity by modulating speed of rotation if the leaving water temperature is in a steady state; and modulating the compressor capacity by modulating inlet guide vane position if the leaving water temperature is not in a steady state.
摘要翻译：一种控制水冷却器系统中的离心压缩机的操作的方法。压缩机的容量通过调节其旋转速度或通过调节其入口导向叶片的位置而变化。水冷却器包括具有离开水温的蒸发器。该方法包括以下步骤：监测离开水温; 确定离开水温度是否处于稳定状态; 如果离开水温处于稳定状态，则通过调节旋转速度来调节压缩机容量; 并且如果离开水温度不处于稳定状态，则通过调节入口引导叶片位置来调节压缩机容量。

4. 发明授权

US5058031A Multilevel phase unbalance compressor motor protection system 失效
标题翻译：多级相不平衡压缩机电机保护系统
公开(公告)号：US5058031A
公开(公告)日：1991-10-15
申请号：US502355
申请日：1990-03-30
申请人： Robert M. Swanson , Paul C. Rentmeester , David M. Foye
发明人： Robert M. Swanson , Paul C. Rentmeester , David M. Foye
IPC分类号： H02H7/09
CPC分类号： H02H7/09
摘要： A method of protecting the compressor motor of a refrigeration system using a multiphase AC power source. The method comprises the steps of monitoring each phase of the power supply to the compressor motor; calculating the average phase for the phases of the AC power supply; determining a maximum phase unbalance deviation from the average phase; determining if a first level of phase unbalance protection is active; setting a system protection level as the first level of phase unbalance protection if the first level is active; setting the system protection level as a second higher level of phase unbalance protection if the first level is not active; and initiating a compressor motor shutdown if the system protection level is exceeded by the maximum unbalanced phase deviation.
摘要翻译：使用多相交流电源保护制冷系统的压缩机电动机的方法。该方法包括以下步骤：监测对压缩机电动机的电源的每个相位; 计算交流电源的相位的平均相位; 确定与平均相位的最大相位不平衡偏差; 确定相位不平衡保护的第一级是否有效; 如果第一级激活，则将系统保护级别设置为第一级相位不平衡保护; 如果第一级不活动，则将系统保护级别设置为第二级相位不平衡保护级别; 如果系统保护等级超过最大不平衡相位偏差，则启动压缩机电机停机。

5. 发明授权

US5138844A Condenser fan control system for use with variable capacity compressor 失效
标题翻译：冷凝器风扇控制系统，用于可变容量压缩机
公开(公告)号：US5138844A
公开(公告)日：1992-08-18
申请号：US503482
申请日：1990-04-03
申请人： Thomas J. Clanin , Dennis R. Dorman , Robert L. Oltman , Merle A. Renaud , Paul C. Rentmeester
发明人： Thomas J. Clanin , Dennis R. Dorman , Robert L. Oltman , Merle A. Renaud , Paul C. Rentmeester
IPC分类号： F25B49/02 , G05D23/19
CPC分类号： F25B49/027 , G05D23/1912 , F25B2600/111 , Y02B30/743
摘要： A method of controlling a multiplicity of condenser fans in a refrigeration system comprising the steps of: calculating a first difference in state between a high pressure side and a low pressure side of the refrigeration system; determining an optimum state for the refrigeration system; determining a second difference in state between the first difference and the optimum difference; and controlling the multiplicity of condenser fans if the second difference exceeds a predetermined value.
摘要翻译：一种在制冷系统中控制多个冷凝器风扇的方法，包括以下步骤：计算制冷系统的高压侧和低压侧之间的第一差异状态; 确定制冷系统的最佳状态; 确定第一差异和最佳差异之间的第二状态差; 以及如果所述第二差异超过预定值则控制所述多个冷凝器风扇。

6. 发明授权

US06917857B2 Magnetically overridden flow control device 有权
标题翻译：磁流超控流量控制装置
公开(公告)号：US06917857B2
公开(公告)日：2005-07-12
申请号：US09738089
申请日：2000-12-15
申请人： Paul C. Rentmeester , Brady J. Moroney , Joel C. Vanderzee
发明人： Paul C. Rentmeester , Brady J. Moroney , Joel C. Vanderzee
IPC分类号： F25B41/06 , G05D7/06 , G05D7/00
CPC分类号： F25B41/062 , G05D7/0635 , Y10T137/86397
摘要： A flow control device. The flow control device comprises a valve; an actuator operably connected to and positioning the valve and a controller operably connected to the actuator and providing control signals thereto. An external signal provides control input to the controller. A magnetically actuated sensor is operatively connected to the controller and provides a signal thereto in response to the movement of a magnetic field.
摘要翻译：流量控制装置。流量控制装置包括阀; 可操作地连接到和定位阀的致动器和可操作地连接到致动器并且向其提供控制信号的控制器。外部信号为控制器提供控制输入。磁致动传感器可操作地连接到控制器，并响应于磁场的移动而向其提供信号。

7. 发明授权

US4244517A Temperature control for variable volume air conditioning system 失效
标题翻译：变量空调系统的温度控制
公开(公告)号：US4244517A
公开(公告)日：1981-01-13
申请号：US22675
申请日：1979-03-22
申请人： Dennis A. Stanke , Paul C. Rentmeester
发明人： Dennis A. Stanke , Paul C. Rentmeester
IPC分类号： F24F3/044 , F24F11/00 , F24F11/053 , G05D23/24 , F16K31/02 , F24F7/00
CPC分类号： F24F3/0442 , F24F11/0009 , F24F11/053 , G05D23/1931 , G05D23/24 , F24F11/0012 , Y02B30/767
摘要： A temperature control is disclosed for a variable volume air conditioning system of the type wherein electric motor-operated air valve means are provided for varying the volume of relatively warm or relatively cool conditioned air supplied to a conditioned zone. The control includes zone thermostat means for sensing the temperature within a conditioned zone, determining the deviation between a set-point temperature and the zone temperature, and for producing an electrical error signal having a magnitude which varies in a predetermined relationship with respect to said deviation in temperature. Valve motor control circuit means receive the error signal and are operative to energize electric motor-operated air valve means in response thereto so as to vary the volume of conditioned air being supplied to said conditioned zone in a sense to restore the zone temperature to the set-point temperature. Flow limit circuit means receives the error signal and imposes limits thereon related to the minimum or maximum desired flow of conditioned air.
摘要翻译：公开了一种用于可变容积空调系统的温度控制器，其中提供电动操作空气阀装置，用于改变供应到调节区域的相对温暖或相对冷却的调节空气的体积。该控制器包括用于感测调节区域内的温度的区域恒温器装置，确定设定点温度和区域温度之间的偏差，以及用于产生具有相对于所述偏差以预定关系变化的幅度的电差错信号在温度。阀门马达控制电路装置接收误差信号，并且可操作以响应于此而对电动机空气阀装置通电，以便在某种意义上改变供应到所述调节区域的调节空气的体积，以将区域温度恢复到该组点温度。流量限制电路装置接收误差信号，并对与调节空气的最小或最大期望流量有关的限制。

8. 发明授权

US07383158B2 HVAC service tool with internet capability 有权
标题翻译：具有互联网功能的HVAC服务工具
公开(公告)号：US07383158B2
公开(公告)日：2008-06-03
申请号：US10125364
申请日：2002-04-16
申请人： Robert E. Krocker , Terence D. Baier , Merle A. Renaud , Paul C. Rentmeester , Robert M. Swanson , Patrick J. Wilson , Kirk W. Johnson
发明人： Robert E. Krocker , Terence D. Baier , Merle A. Renaud , Paul C. Rentmeester , Robert M. Swanson , Patrick J. Wilson , Kirk W. Johnson
IPC分类号： G06F11/30 , G06F15/00 , G06F11/00 , G21C17/00 , G05B11/01
CPC分类号： G05B15/02 , G05B2219/2642
摘要： A system for servicing a computer controlled machine comprising: a computer controlled machine including a device operable to perform a function, a controller controlling the operation of that device, and a data access port for transferring data and commands from the controller; and a service tool operably connected to the data access port, the service tool including a remote communications capability, a computer, and diagnostics and graphing software; and an expert observer system operably linked to the remote communications capability of the service tool and including historical machine data, machine sales information, software revisions for the controller, additional diagnostics software, and an expert observer capable of providing a mentor capability to the operator of a service tool.
摘要翻译：一种用于维修计算机控制机器的系统，包括：计算机控制机器，包括可操作以执行功能的设备，控制该设备的操作的控制器以及用于从控制器传送数据和命令的数据访问端口; 以及可操作地连接到所述数据访问端口的服务工具，所述服务工具包括远程通信能力，计算机和诊断和图形软件; 以及可操作地与服务工具的远程通信能力相关联的专家观察器系统，并且包括历史机器数据，机器销售信息，用于控制器的软件修订，附加诊断软件和能够向操作者提供导师能力的专家观察者一个服务工具。

9. 发明授权

US4686834A Centrifugal compressor controller for minimizing power consumption while avoiding surge 失效
标题翻译：离心式压缩机控制器，用于在消除浪涌的同时最大限度地降低功耗
公开(公告)号：US4686834A
公开(公告)日：1987-08-18
申请号：US872314
申请日：1986-06-09
申请人： Paul F. Haley , Brian S. Junk , Merle A. Renaud , Paul C. Rentmeester
发明人： Paul F. Haley , Brian S. Junk , Merle A. Renaud , Paul C. Rentmeester
IPC分类号： F04D27/02 , F25B1/053 , F25B49/02 , F25B41/00
CPC分类号： F04D27/0261 , F04D27/02 , F04D27/0246 , F04D27/0284 , F25B1/053 , F25B49/022 , F25B2600/021 , Y02B30/741
摘要： This controller is used for controlling a centrifugal compressor along its path of minimum power consumption while avoiding a surge condition. It is especially useful in a refrigeration system having a variable speed centrifugal compressor with adjustable inlet guide vanes. In such an application, the controller opens the inlet guide vanes enough to satisfy the cooling demand and then, to minimize power consumption, reduces the speed of the compressor while further opening the vanes (compensating for the reduced speed) until either the inlet guide vanes are fully open or an impending surge condition is detected. The onset of a surge condition is detected by monitoring motor current fluctuations. When fluctuations above a predetermined amplitude occur in excess of a predetermined frequency, the controller determines that a surge is impending. The controller continues to control the compressor in this manner, providing a capacity that is minimally above a level that would cause a surge yet is sufficient to satisfy the cooling demand.
摘要翻译：该控制器用于沿其最小功耗的路径控制离心式压缩机，同时避免浪涌状况。特别适用于具有可调进口导向叶片的变速离心式压缩机的制冷系统。在这种应用中，控制器打开入口导流叶片以满足冷却需求，然后为了最小化功率消耗，在进一步打开叶片（补偿降低的速度）的同时降低压缩机的速度，直到入口导向叶片完全打开或者即将发生喘振状态。通过监测电机电流波动来检测浪涌状态的开始。当超过预定频率的波动超过预定频率时，控制器确定浪涌即将到来。控制器以这种方式继续控制压缩机，提供最小程度高于会导致浪涌但足以满足冷却需求的能力的容量。

10. 发明授权

US4135396A Temperature compensating fluid velocity sensing apparatus 失效
标题翻译：温度补偿液速度检测装置
公开(公告)号：US4135396A
公开(公告)日：1979-01-23
申请号：US899628
申请日：1978-04-24
申请人： Dennis A. Stanke , Paul C. Rentmeester , Paul D. Ulland
发明人： Dennis A. Stanke , Paul C. Rentmeester , Paul D. Ulland
IPC分类号： G01P5/12 , G01F1/684 , G01F1/696 , G01F1/68
CPC分类号： G01F1/696 , G01F1/684
摘要： Apparatus are disclosed for sensing the velocity of a fluid stream, as may be flowing in a duct, pipe, or the like, which fluid stream exhibits variations in its temperature under different operating conditions. The apparatus includes a first probe which is exposed to the fluid stream and includes first temperature sensing means for sensing the temperature of the fluid stream. A second probe is provided which is disposed within the fluid stream and includes at least a portion constructed of a thermally conductive material. Heater means are disposed in thermally conductive relationship with said thermally conductive portion, and second temperature indicative of the temperature of said heater means. Third temperature sensing means are provided for sensing the temperature of the thermally conductive portion of the second probe at a point removed from the heater means, which temperature is a function of the heater means temperature, the fluid temperature, and the velocity of the fluid flowing thereover. In order to compensate for variations in the fluid temperature, heater control circuit means are provided for receiving temperature signals from the first and second temperature sensing means and for controlling the heat output of the heater means so as to maintain substantially constant the temperature difference between the fluid and heater means. Velocity output circuit means are provided for receiving the fluid temperature signal from the first temperature sensing means and the second probe temperature signal from the third temperature sensing means and for producing a signal related to the differences between said temperatures, which signal is related to the velocity of the fluid stream.
摘要翻译：公开了用于感测流体流的速度的装置，可以在管道，管子等中流动，该流体流在不同的操作条件下表现出其温度变化。该装置包括暴露于流体流的第一探针，并且包括用于感测流体流的温度的第一温度感测装置。提供第二探针，其设置在流体流内并且包括由导热材料构成的至少一部分。加热装置与所述导热部分成导热关系，第二温度表示所述加热器装置的温度。提供第三温度检测装置，用于在从加热器装置移除的点处感测第二探针的导热部分的温度，该温度是加热装置温度，流体温度和流体流动速度的函数在那里为了补偿流体温度的变化，提供了加热器控制电路装置，用于接收来自第一和第二温度检测装置的温度信号，并且用于控制加热器装置的热量输出，从而保持基本上恒定的温度差流体和加热装置。提供速度输出电路装置，用于接收来自第一温度检测装置的流体温度信号和来自第三温度感测装置的第二探针温度信号，并产生与所述温度之间的差异相关的信号，该信号与速度的流体流。

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