公开(公告)号：US20160201657A1

公开(公告)日：2016-07-14

申请号：US14912297

申请日：2014-08-21

申请人： ProMinent GmbH

发明人： Steven LIU ,  Fabian KENNEL

IPC分类号： F04B17/04 ,  F04B19/22 ,  F04B7/02

CPC分类号： F04B17/04 ,  F04B17/042 ,  F04B43/04 ,  F04B49/065 ,  F04B2203/0201 ,  F04B2203/0401 ,  F04B2203/0402 ,  G05B17/02

摘要： The invention relates to a method for determining hydraulic parameters in a displacement pump, wherein the displacement pump has a movable displacement element, which bounds the metering chamber, which is connected to a suction and pressure line by means of valves, wherein a drive is provided for the oscillating motion of the displacement element. In order that pumped fluid can be alternately sucked into the metering chamber via the suction line and pressed from the metering chamber via the pressure line by means of an oscillating motion of the displacement element, a physical model having hydraulic parameters according to the invention is established for the hydraulic system, the force exerted by the displacement element on the fluid located in the metering chamber or the pressure in the metering chamber is determined and the position of the displacement element is determined, and at least one hydraulic parameter is calculated by means of an optimization calculation.

摘要翻译： 本发明涉及一种用于确定排量泵中的液压参数的方法，其中排量泵具有移动位移元件，该活动位移元件限定通过阀连接到吸入和压力管线的计量室，其中提供驱动器 用于位移元件的摆动运动。 为了使泵送的流体可以经由吸入管线被交替地吸入计量室，并且通过位移元件的摆动运动经由压力管线从计量室按压，建立了具有根据本发明的液压参数的物理模型 对于液压系统，确定由位移元件施加在位于计量室中的流体或计量室中的压力的​​力，并且确定位移元件的位置，并且通过以下步骤计算至少一个液压参数： 优化计算。

公开(公告)号：US20160108905A1

公开(公告)日：2016-04-21

申请号：US14518250

申请日：2014-10-20

申请人： General Electric Company

发明人： Eric K. Watson ,  Richard Dana Brooke ,  Timothy Neal Johnson ,  Meher Prasadu Kollipara

IPC分类号： F04B51/00 ,  G01R31/34 ,  G01R25/00

CPC分类号： F04B51/00 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2203/0201 ,  F04C18/356 ,  F04C23/02 ,  F04C28/28 ,  F04C29/0085 ,  F04C2270/075 ,  G01R25/00 ,  G01R25/005 ,  G01R31/34

摘要： Compressors and methods for determining optimal parking positions for compressor pistons are provided. A method includes performing a current value evaluation for an initial time during operation of a motor of the compressor. Performing the current value evaluation includes measuring a motor current value at the time and comparing the motor current value to an existing optimal parking current value. Performing the current value evaluation further includes modifying the existing optimal parking current value to the motor current value when the motor current value exceeds or is equal to the existing optimal parking current value.

摘要翻译： 提供了用于确定压缩机活塞的最佳停车位置的压缩机和方法。 一种方法包括在压缩机的电动机的操作期间执行初始时间的当前值评估。 执行当前值评估包括测量当前的电动机电流值，并将电动机电流值与现有的最佳停车电流值进行比较。 执行当前值评估还包括当电动机电流值超过或等于现有最佳停车电流值时，将现有最佳停车电流值修改为电动机电流值。

公开(公告)号：US20160076536A1

公开(公告)日：2016-03-17

申请号：US14949090

申请日：2015-11-23

申请人： Emerson Climate Technologies, Inc.

发明人： Nagaraj Jayanth ,  Troy W. Renken

IPC分类号： F04B51/00 ,  G01R21/133

CPC分类号： F04B51/00 ,  F04B35/04 ,  F04B39/121 ,  F04B49/065 ,  F04B2203/0201 ,  F04B2203/0202 ,  F04B2203/0208 ,  F04D27/00 ,  F04D27/001 ,  F04D27/02 ,  G01R21/00 ,  G01R21/133 ,  H02H7/0822

摘要： A sensor module for a compressor having an electric motor connected to a power supply is provided. The sensor module includes: a first input connected to a first voltage sensor that generates a voltage signal corresponding to a voltage of the power supply; a second input connected to a first current sensor that generates a current signal corresponding to a current of the power supply; and a processor connected to the first and second inputs. The processor monitors the first and second inputs and, based on voltage measurements from the first input and current measurements from the second input, detects at least one of: (i) an unexpected variation of electric power from the power supply; and (ii) a mechanical malfunction. The processor is disposed within an electrical enclosure of the compressor, the electrical enclosure being configured to house electrical terminals for connecting the power supply to the electric motor.

摘要翻译： 提供了一种用于具有连接到电源的电动机的压缩机的传感器模块。 传感器模块包括：连接到第一电压传感器的第一输入端，其产生对应于电源电压的电压信号; 连接到第一电流传感器的第二输入端产生对应于电源电流的电流信号; 以及连接到第一和第二输入的处理器。 处理器监视第一和第二输入，并且基于来自第一输入的电压测量和来自第二输入的电流测量，检测以下至少一个：（i）来自电源的电力的意外变化; 和（ii）机械故障。 处理器设置在压缩机的电气外壳内，电气外壳被配置为容纳用于将电源连接到电动机的电气端子。

公开(公告)号：US20150078917A1

公开(公告)日：2015-03-19

申请号：US14031236

申请日：2013-09-19

申请人： GENERAL ELECTRIC COMPANY

发明人： David Allan Torrey ,  Deepak Aravind

IPC分类号： F04D15/00 ,  F04D13/08

CPC分类号： F04D15/0066 ,  E21B43/128 ,  F04B47/06 ,  F04B49/06 ,  F04B49/103 ,  F04B2203/0201 ,  F04B2203/0202 ,  F04B2203/0209 ,  F04D13/08 ,  H02P9/04

摘要： A converterless motor-driven pump system includes an off-grid prime mover. The off-grid prime mover has a rotational driveshaft and operates in response to a throttle control command to control a rotation speed of the rotational driveshaft. An electric power generator is driven by the off-grid prime mover to generate AC power. A variable speed induction motor is directly powered by the electric power generator. A pump that may be submersible is driven by the at least one variable speed induction motor. A system controller that may be local or remote is programmed to generate the throttle control command in response to one or more pump operating characteristics such that the off-grid prime mover, the electric power generator, and the variable speed induction motor together operate to regulate a pressure at the inlet of the electric pump.

摘要翻译： 无转矩电动泵系统包括离网原动机。 离网原动机具有旋转驱动轴并且响应于节流控制命令而操作以控制旋转驱动轴的转速。 发电机由离网原动机驱动，产生交流电。 变速感应电动机由发电机直接供电。 可以是潜水的泵由至少一个可变速感应电动机驱动。 可以将本地或远程的系统控制器编程为响应于一个或多个泵操作特性产生节气门控制命令，使得离网原动机，发电机和变速感应电动机一起操作以调节 在电动泵的入口处的压力。

公开(公告)号：US20140369803A1

公开(公告)日：2014-12-18

申请号：US14286839

申请日：2014-05-23

申请人： Ford Global Technologies, LLC

发明人： Nicholas Dashwood Crisp ,  Mike Rowland ,  Peter Douglas Kuechler

IPC分类号： F04D27/00

CPC分类号： F04D27/00 ,  B60H2001/3275 ,  F04B2201/06 ,  F04B2203/0201 ,  F04B2203/0401 ,  F04D25/024 ,  F04D25/0606

摘要： Embodiments are disclosed that relate to controlling a compressor. In one example, method of controlling a compressor comprises regulating a discharge capacity of the compressor via a control current supplied to a control device, holding the control current supplied to the control device at substantially zero amperes for a first duration, and stepping the control current from substantially zero amperes to a sustainable current that provides a sustainable level of a performance parameter of the compressor.

摘要翻译： 公开了涉及控制压缩机的实施例。 在一个示例中，控制压缩机的方法包括通过提供给控制装置的控制电流来调节压缩机的放电容量，将提供给控制装置的控制电流保持在基本为零安培的持续时间，并且控制电流 从基本上零安培到可持续电流，提供压缩机的可持续水平的性能参数。

公开(公告)号：US08904814B2

公开(公告)日：2014-12-09

申请号：US12494158

申请日：2009-06-29

申请人： John W. Tolbert, Jr. ,  Bruce A. Moody ,  Jerry D. Edwards ,  David R. Gilliam ,  Eugene K. Chumley ,  Richard C. Denzau ,  Scott Hix ,  Justin M. Toner ,  Mark R. Trent ,  Tim M. Wampler ,  John R. Williams

发明人： John W. Tolbert, Jr. ,  Bruce A. Moody ,  Jerry D. Edwards ,  David R. Gilliam ,  Eugene K. Chumley ,  Richard C. Denzau ,  Scott Hix ,  Justin M. Toner ,  Mark R. Trent ,  Tim M. Wampler ,  John R. Williams

IPC分类号： F25B49/00 ,  F04B39/02

CPC分类号： F04B39/0207 ,  F04B2203/0201 ,  F04B2203/0209

摘要： A system and method for determining a fault condition in a compressor is provided. The current of a motor drive powering the compressor and the outdoor ambient temperature are measured and used to determine if a fault condition or a potential fault condition is present in the compressor. If a fault condition is determined to be present, the compressor can be shutdown to avoid damage to the compressor. If a potential fault condition is determined, remedial action can be taken to attempt to prevent the fault condition from occurring and shutting down the compressor.

摘要翻译： 提供了一种用于确定压缩机中的故障状况的系统和方法。 测量对压缩机供电的电机驱动器的电流和室外环境温度，以确定压缩机中是否存在故障状况或潜在故障状况。 如果确定存在故障条件，则可关闭压缩机以避免损坏压缩机。 如果确定了潜在的故障条件，则可以采取补救措施来尝试防止故障发生并关闭压缩机。

公开(公告)号：US20140286793A1

公开(公告)日：2014-09-25

申请号：US14359072

申请日：2012-11-15

申请人： AISIN SEIKI KABUSHIKI KAISHA

发明人： Shigemitsu Suzuki ,  Yutaka Iguchi ,  Atsushi Watanabe

IPC分类号： H02P23/14

CPC分类号： F04B49/06 ,  F04B17/03 ,  F04B49/065 ,  F04B2203/0201 ,  F04B2203/0202 ,  F04B2203/0204 ,  F04B2203/0209 ,  F04B2203/0213 ,  H02P1/42 ,  H02P5/68 ,  H02P6/18 ,  H02P6/28

摘要： In order to realize, without inviting cost increase, a control for maintaining a pressure of fluid delivered from a pump at a target value, a pump control unit is provided with a driver control unit controlling a rotational speed of a hydraulic pump through adjustment of a duty ratio of a PWM signal driving excitation coils of an electric motor. Further, the pump control unit is provided also with a signal correction circuit configured to convert a current flowing in the excitation coils to a voltage signal with using a shunt resistor and to divide the voltage signal with using a voltage division ratio setting circuit and to shorten an ON signal of the PWM signal by increasing the divided voltage. The voltage division ratio setting circuit has a characteristics of setting the divided voltage higher, the longer an ON period of the PWM signal.

摘要翻译： 为了实现在不增加成本的情况下，将从泵输送的流体的压力保持在目标值的控制，泵控制单元设置有驱动器控制单元，其通过调整液压泵的调节来控制液压泵的转速 驱动电动机的励磁线圈的PWM信号的占空比。 此外，泵控制单元还设置有信号校正电路，该信号校正电路被配置为使用分流电阻器将在励磁线圈中流动的电流转换为电压信号，并且使用分压比设置电路来分频电压信号并缩短 PWM信号的ON信号通过增加分压。 分压比设定电路具有将分压电压设定得较高的特性，PWM信号的导通周期越长。

公开(公告)号：US20130171010A1

公开(公告)日：2013-07-04

申请号：US13727941

申请日：2012-12-27

申请人： JTEKT Corporation

发明人： Hiroki KAGAWA

IPC分类号： F04B17/03

CPC分类号： F04B17/03 ,  F04B49/022 ,  F04B49/065 ,  F04B2203/0201 ,  F04B2203/0209 ,  F04C2/10 ,  F04C11/005 ,  F04C14/06 ,  F04C14/065 ,  F04C14/08 ,  F04C14/28 ,  F04C2270/80 ,  F16H61/0021 ,  F16H61/0031

摘要： A control signal output unit obtains a motor control signal by applying a reduction amount for a current command value obtained by an over-power suppression control unit to a current command value from a host control unit. The over-power suppression control unit includes a hydraulic pressure estimation unit that estimates hydraulic pressure, and a current command value correction amount calculation unit that compares a target hydraulic pressure with an estimated hydraulic pressure and outputs the reduction amount for the current command value. Load information indicating whether a load on the pump is a low load or a high load that is higher than the low load is input into a control circuit from the host control unit, and the over-power suppression control unit changes the target hydraulic pressure in accordance with a magnitude of the load indicated by the load information.

摘要翻译： 控制信号输出单元通过将由过功率抑制控制单元获得的电流指令值的减小量应用到来自主机控制单元的当前指令值来获得电动机控制信号。 过功率抑制控制单元包括估计液压的液压估计单元和将目标液压与估计液压进行比较的电流指令值修正量计算单元，并输出当前指令值的减小量。 指示泵的负载是低负载还是高于低负载的高负载的负载信息从主机控制单元输入到控制电路中，并且过功率抑制控制单元改变目标液压 根据负载信息指示的负载的大小。

公开(公告)号：US20130166231A1

公开(公告)日：2013-06-27

申请号：US13770123

申请日：2013-02-19

申请人： EMERSON CLIMATE TECHNOLOGIES, INC.

发明人： Nagaraj JAYANTH ,  Troy W. RENKEN

IPC分类号： G01R21/00

CPC分类号： F04B51/00 ,  F04B35/04 ,  F04B39/121 ,  F04B49/065 ,  F04B2203/0201 ,  F04B2203/0202 ,  F04B2203/0208 ,  F04D27/00 ,  F04D27/001 ,  F04D27/02 ,  G01R21/00 ,  G01R21/133 ,  H02H7/0822

摘要： A sensor module for a compressor having an electric motor connected to a power supply is provided. The sensor module includes an input that receives current measurements generated by a current sensor based on a current of the power supply. The sensor module also includes a processor. The processor is connected to the input, determines a maximum continuous current for the electric motor, and selectively compares the current measurements with a value equal to the maximum continuous current multiplied by a predetermined value. The maximum continuous current is set based on at least one of a type of refrigerant used by the compressor and actual refrigeration system conditions.

摘要翻译： 提供了一种用于具有连接到电源的电动机的压缩机的传感器模块。 传感器模块包括输入端，该输入端基于电源的电流接收由电流传感器产生的电流测量值。 传感器模块还包括处理器。 处理器连接到输入端，确定电动机的最大连续电流，并且选择性地将电流测量值与等于预定值的最大连续电流的值进行比较。 基于压缩机使用的制冷剂和实际制冷系统条件中的至少一种来设定最大连续电流。

公开(公告)号：US08459195B2

公开(公告)日：2013-06-11

申请号：US13096107

申请日：2011-04-28

申请人： Michael H. Irving

发明人： Michael H. Irving

IPC分类号： B63B13/00

CPC分类号： F04B49/065 ,  B63B13/00 ,  F04B49/02 ,  F04B2203/0201

摘要： A self-priming diaphragm pump is connected to a circuit board which activates the self-priming diaphragm pump at predetermined intervals, e.g., for 1-3 seconds. When the self-priming diaphragm pump is activated, the circuit board senses the amperage draw from the pump's motor and either continues to run the pump or stops the pump depending on the different amperage levels read. If there is water present in the bilge, the motor is working harder, requiring more amperage and circuit board keeps the pump running. If there is no water present for the pump to draw, the amperage load is very low and the circuit board shuts the pump off, retesting it in the predetermined interval.

摘要翻译： 自吸隔膜泵连接到电路板，其以预定间隔（例如1-3秒）激活自吸隔膜泵。 当自吸隔膜泵被激活时，电路板感测来自泵的电动机的安培数吸力，并且继续运行泵或者根据读取的不同电流强度来停止泵。 如果舱底存在水，则电机更加努力，需要更多的安培数和电路板使泵运行。 如果泵没有水存在，则电流负载非常低，并且电路板关闭泵，并在预定间隔内重新测试。