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公开(公告)号:US12078177B2
公开(公告)日:2024-09-03
申请号:US17040621
申请日:2019-03-22
申请人: Xylem Europe GmbH
发明人: Staffan Olsson , Måns Bergsten , Gert Hallgren
CPC分类号: F04D13/08 , F04D13/0686 , F04D15/00 , F04D15/0088 , F04D29/18
摘要: A submersible electric machine for transporting a liquid, the machine having a hydraulic unit with an impeller, and a drive unit with a housing defining a motor compartment having an electric motor inside. A drive shaft is connected to the electric motor, and extends from the electric motor to the hydraulic unit to a connection with the impeller. A top unit includes a housing defining an electronics chamber separated from the motor compartment by a dividing structural wall. The electronics chamber has a metal partition, having a natural frequency equal to or more than 500 Hz, connected to the top unit housing. A vibration sensor is directly or indirectly connected to the metal partition and monitors vibrations in at least two dimensions at frequencies ranging up to 500 Hz.
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公开(公告)号:US11952749B2
公开(公告)日:2024-04-09
申请号:US17289423
申请日:2019-11-07
申请人: KOMATSU LTD.
发明人: Kenichi Yamada , Shogo Miyazaki , Akira Takeno , Shota Yamawaki
IPC分类号: E02F9/22 , E02F9/20 , F04D13/02 , F04D15/00 , F15B15/18 , F16H61/4008 , F16H61/4157 , F16H61/472
CPC分类号: E02F9/2253 , E02F9/2004 , E02F9/2292 , E02F9/2296 , F04D13/028 , F04D15/00 , F15B15/18 , F16H61/4008 , F16H61/4157 , F16H61/472
摘要: A control device for a power machine includes a target circuit pressure specifying unit configured to specify a target circuit pressure of the hydrostatic continuously variable transmission, a measurement value acquisition unit configured to acquire an actual circuit pressure of the hydrostatic continuously variable transmission, a brake torque determination unit configured to determine a brake torque based on the target circuit pressure and the actual circuit pressure, and a pump control unit configured to control the hydraulic pump based on the brake torque. The brake torque is a torque consumed by the hydraulic pump.
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公开(公告)号:US11705852B2
公开(公告)日:2023-07-18
申请号:US17017708
申请日:2020-09-11
摘要: A motor driving device for driving a motor is provided. The motor driving device includes: a driver outputting a drive signal for driving the motor to the motor; and a controller controlling a duty ratio of the drive signal based on three control parameters which are an initial duty ratio, a duty ratio increasing speed, and a target duty ratio. The controller has a normal control mode in which each of the three control parameters is a predetermined value, and a cryogenic control mode in which at least one of the three control parameters is a smaller value than in the normal control mode.
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公开(公告)号:US20180335038A1
公开(公告)日:2018-11-22
申请号:US15983650
申请日:2018-05-18
申请人: GRUNDFOS HOLDING A/S
CPC分类号: F04D13/0686 , F04D15/00 , F04D29/426
摘要: A pump assembly (1) includes a pump unit (2) with an impeller (12) having a rotational axis (R), an electrical drive motor for driving the impeller (12), and a control unit for controlling the drive motor. The control unit includes a main module in a housing (15), a first detachable plug-in module (23) and a second detachable plug-in module (27). The main module is fixed to the drive motor and configured to control the drive motor. The first plug-in module (23) and the second plug-in module (27) are selectively pluggable into a first position to communicate with the main module via at least one wireless communication channel.
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公开(公告)号:US09950283B2
公开(公告)日:2018-04-24
申请号:US14909999
申请日:2015-01-21
CPC分类号: B01D21/2444 , B01D21/0018 , B01D21/2427 , B01D21/30 , B01D21/307 , B01D21/34 , F04D15/00
摘要: To provide a supernatant water discharge device capable of preventing overflow from a settling pond due to severe rain.The supernatant water discharge device comprises: a submersible pump 10 provided in a first settling pond D; a floating member 30 that makes the submersible pump 10 float on a water surface; a distance sensor 41 that measures a distance to a sediment S; an anemometer 42; and a controller 50 that stops the submersible pump 10 if a measured value from the distance sensor 41 or the anemometer 42 reaches a threshold. By predicting severe rain, discharge of supernatant water W to a second settling pond P can be stopped. This can prevent overflow from the second settling pond P due to severe rain. If the sediment S gets close to the submersible pump 10 as a result of a drop in water level or increase in a deposition height, the submersible pump 10 can be stopped. This can prevent failure of the submersible pump 10 due to suction of a solid.
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公开(公告)号:US20180008850A1
公开(公告)日:2018-01-11
申请号:US15630447
申请日:2017-06-22
发明人: Daniel G. Scheffer
摘要: Example devices, systems, and methods disclosed herein relate to a controller configured to control pressure maintenance in a fire protection system. A controller may be configured to control a fire pump to provide a first level of water pressure and to control operation of a jockey pump that is coupled in parallel with the fire pump to provide a second level of water pressure that is less than the first level. The controller is further configured to receive, from a pressure sensor coupled to the fire protection system, an output representative of the water pressure. The controller is configured to provide instructions to initiate the jockey pump based on a pressure value associated with the output being below a first value, and to provide instructions to initiate the fire pump based on the pressure value being below a second value that is less than the first value.
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公开(公告)号:US09670929B2
公开(公告)日:2017-06-06
申请号:US13741613
申请日:2013-01-15
发明人: Matthew John Malone
CPC分类号: F04D15/00 , F01D15/02 , F01D17/06 , F01D21/04 , F04D25/024 , F04D27/001 , F05D2220/40 , F05D2270/09 , F05D2270/304 , F05D2270/821
摘要: Various methods and systems are provided for detecting turbocharger degradation. In one example, a method comprises detecting an axial position of a turbine rotor based on output from a turbine speed sensor, and if the axial position is greater than a threshold distance from a base position, indicating turbocharger degradation.
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公开(公告)号:US09476425B2
公开(公告)日:2016-10-25
申请号:US14092537
申请日:2013-11-27
发明人: Eric Atherton
CPC分类号: F04D15/00 , E21B43/128 , E21B47/0007 , F04D13/08 , F04D13/10 , F04D15/0088 , F04D15/0094 , H02K5/132 , H02K11/21
摘要: Apparatus for monitoring an Electrical Submersible Pump (ESP) are provided, and example of an apparatus includes a rotation rate or other sensor located in, for example, an ESP gauge. When the ESP is started the rotating elements rotate in a first direction while the static elements will experience an opposing torque in a second opposite direction. The small rotational movement of the ESP gauge housing, for example, is sensed by the sensor and is used to determine the direction of rotation of the motor and pump to ensure proper ESP motor and/or ESP assembly configuration.
摘要翻译: 提供了用于监测电潜泵(ESP)的设备,并且设备的示例包括位于例如ESP量规中的旋转速率或其它传感器。 当ESP启动时,旋转元件沿第一方向旋转,而静态元件将在相反的第二方向上经历相反的转矩。 例如,ESP量规壳体的小旋转运动由传感器感测并用于确定电机和泵的旋转方向,以确保适当的ESP电机和/或ESP组件配置。
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公开(公告)号:US20160233722A1
公开(公告)日:2016-08-11
申请号:US14616723
申请日:2015-02-08
申请人: Yiping Zhou
发明人: Yiping Zhou
CPC分类号: H02J9/062 , F04D13/068 , F04D13/08 , F04D15/00 , H02J7/0068 , H02J7/02
摘要: A backup power system provides uninterrupted AC power to single sump pump to protect basement from flooding during normal power supply period and power outage period.
摘要翻译: 备用电源系统为单个集水泵提供不间断的交流电源,以在正常供电周期和停电期间保护地下室免受淹水。
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公开(公告)号:US20150316063A1
公开(公告)日:2015-11-05
申请号:US14800339
申请日:2015-07-15
CPC分类号: F04D15/00 , F04B17/03 , F04B17/06 , F04B23/021 , F04B49/06 , F04B49/08 , F04B2203/0209 , F04D15/0072 , G01F23/18 , G05B15/02
摘要: Systems and methods for sump pump remote monitoring can include control circuitry integrated into a portable housing, with a backup sump pump connected to the control circuitry. The control circuitry can be powered by a line power and when the line power is not available, the control circuitry can be powered by a battery power. The control circuitry can be connected to a control panel, and the control circuitry can include a pressure transducer, the pressure transducer to measure a pressure in a fluid level sensor, and based on the measured pressure, the control circuitry to adjust the speed of the backup sump pump. A wireless controller can be connected to the control circuitry, the wireless controller for wirelessly receiving monitoring instructions and wirelessly transmitting backup sump pump status data, with the control circuitry providing an indication of the backup sump pump status data to the control panel.
摘要翻译: 集水泵远程监控的系统和方法可以包括集成到便携式外壳中的控制电路,备用油底壳泵连接到控制电路。 控制电路可以由线路电源供电,并且当线路电源不可用时,控制电路可以由电池供电。 控制电路可以连接到控制面板,并且控制电路可以包括压力传感器,用于测量液位传感器中的压力的压力传感器,并且基于测量的压力,控制电路来调节控制电路的速度 备用水泵。 无线控制器可以连接到控制电路,无线控制器用于无线地接收监控指令,并且无线传送备用油底壳状态数据,控制电路提供备用油底壳状态数据到控制面板的指示。
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