Hydraulically actuated diaphragm pumps

    公开(公告)号:US09845794B2

    公开(公告)日:2017-12-19

    申请号:US14049088

    申请日:2013-10-08

    Abstract: A diaphragm pump may comprise a housing defining a first pumping chamber, a second pumping chamber, and a hydraulic fluid chamber, a first flexible diaphragm separating the first pumping chamber from the hydraulic fluid chamber, a second flexible diaphragm separating the second pumping chamber from the hydraulic fluid chamber, a rod mechanically linking the first flexible diaphragm and the second flexible diaphragm such that an expansion of one of the first and second flexible diaphragms exerts a contraction force on the other of the first and second flexible diaphragms, and a piston disposed within the hydraulic fluid chamber and configured to reciprocate to cause a hydraulic fluid contained within the hydraulic fluid chamber to alternately exert an expansion force on the first and second flexible diaphragms.

    SYSTEM AND METHOD FOR HEALTH MANAGEMENT OF PUMPING SYSTEM
    73.
    发明申请
    SYSTEM AND METHOD FOR HEALTH MANAGEMENT OF PUMPING SYSTEM 有权
    抽水系统健康管理系统与方法

    公开(公告)号:US20160195082A1

    公开(公告)日:2016-07-07

    申请号:US14588475

    申请日:2015-01-02

    Abstract: A method implemented by at least one processor includes receiving a plurality of operating parameters of a pumping system, wherein the pumping system has a plurality of pump-units powered by a generator-unit. The operating parameters include a pump-unit parameter and a generator-unit parameter. The method also includes receiving reference data of the pumping system, wherein the reference data includes measurements from the pumping system representative of performance of the plurality of pump-units. The method also includes determining one or more health parameters corresponding to one or more pump-units based on the plurality of operating parameters and the reference data. The method further includes modifying one or more input parameters of the generator-unit based on the one or more health parameters for continued operation of the pumping system.

    Abstract translation: 由至少一个处理器实现的方法包括接收泵送系统的多个操作参数,其中泵送系统具有由发电机单元供电的多个泵单元。 操作参数包括泵单元参数和发电机单元参数。 该方法还包括接收泵送系统的参考数据,其中参考数据包括代表多个泵单元的性能的泵送系统的测量值。 该方法还包括基于多个操作参数和参考数据确定与一个或多个泵单元相对应的一个或多个健康参数。 该方法还包括基于用于泵送系统的连续操作的一个或多个健康参数来修改发电机单元的一个或多个输入参数。

    Work vehicle and work vehicle control method
    74.
    发明授权
    Work vehicle and work vehicle control method 有权
    作业车辆和作业车辆控制方法

    公开(公告)号:US08321114B2

    公开(公告)日:2012-11-27

    申请号:US13393922

    申请日:2011-05-20

    Abstract: A control unit is configured to calculate a target absorption torque of a hydraulic pump at which the engine output torque and the absorption torque of the hydraulic pump match a target matching rotation speed of the engine. The control unit is configured to refer to command data, calculate a command current value corresponding to the target absorption torque, and output a command signal of the calculated value to a pump control device. The control unit is configured to calculate the absorption torque at calibration points at which there is an equilibrium state in which the output horsepower of the engine and the absorption horsepower of the hydraulic pump are matched. The control unit is configured to acquire calibration information including the calculated absorption torque and the command current value output to the pump control device in the equilibrium state, and calibrate the command data based on the calibration information.

    Abstract translation: 控制单元被配置为计算液压泵的目标吸收转矩,其中发动机输出转矩和液压泵的吸收扭矩与发动机的目标匹配转速匹配。 控制单元被配置为参考命令数据,计算与目标吸收扭矩相对应的命令电流值,并将计算值的命令信号输出到泵控制装置。 控制单元被配置为计算在发动机的输出功率和液压泵的吸收功率匹配的平衡状态的校准点处的吸收转矩。 控制单元被配置为获取包括在平衡状态下输出到泵控制装置的计算吸收扭矩和指令电流值的校准信息,并且基于校准信息校准指令数据。

    Compressor
    77.
    发明申请
    Compressor 审中-公开
    压缩机

    公开(公告)号:US20080232979A1

    公开(公告)日:2008-09-25

    申请号:US11902983

    申请日:2007-09-27

    CPC classification number: F04B27/0895 F04B35/00 F04B39/00 F04B2201/1202

    Abstract: A swash plate compressor (41) is disclosed, wherein a shaft (43) is divided into a rear shaft (45) and a front shaft (47) coupled to each other through a torque limiter (65) with center holes (51, 69) communicating with each other. A lug plate (25) is fixed to the rear shaft (45). Machining of the center holes is thus facilitated while at the same time eliminating the need for rust-proofing of the torque limiter.

    Abstract translation: 公开了一种斜盘式压缩机(41),其中轴(43)被分为后轴(45)和前轴(47),前轴(47)通过具有中心孔(51,69)的扭矩限制器 )相互沟通。 凸耳板(25)固定在后轴(45)上。 因此,中心孔的加工便于同时消除对扭矩限制器的防锈需要。

    System And Method For Power Pump Performance Monitoring And Analysis
    78.
    发明申请
    System And Method For Power Pump Performance Monitoring And Analysis 有权
    动力泵性能监测与分析系统与方法

    公开(公告)号:US20080196512A1

    公开(公告)日:2008-08-21

    申请号:US11914361

    申请日:2006-05-15

    Inventor: J. Davis Miller

    Abstract: A power pump performance analysis system and methods includes a signal processor connected to certain sensors for sensing pressures and stresses in the cylinder chambers and the inlet and discharge piping of a single or multicylinder pump. Pump speed and pump piston position may be determined by a crankshaft position sensor. Performance analyses for pump work performed, pump cylinder chamber stress, pump fluid end useful cycles to failure, and crosshead loading and shock analysis are provided for estimating pump component life and determining times for component replacement before failure.

    Abstract translation: 动力泵性能分析系统和方法包括连接到某些传感器的信号处理器,用于感测气缸室中的压力和应力以及单缸或多缸泵的入口和排放管道。 泵速度和泵活塞位置可由曲轴位置传感器确定。 提供执行泵功能的性能分析,泵缸室应力,泵流体末端故障有用周期以及十字头负载和冲击分析,用于估计泵组件寿命并确定故障前部件更换的时间。

    Torque controlled pump protection with mechanical loss compensation
    79.
    发明授权
    Torque controlled pump protection with mechanical loss compensation 有权
    扭矩控制泵保护,机械损耗补偿

    公开(公告)号:US07080508B2

    公开(公告)日:2006-07-25

    申请号:US10846946

    申请日:2004-05-13

    CPC classification number: F04D15/0066 F04B2201/1202 F04D15/0254

    Abstract: A method and apparatus are provided for controlling the operation of a pump, such as a centrifugal pump, featuring steps of either adjusting the operation of the pump, or issues a warning to a user of the pump of an undesirable operating condition, or both, based on a comparison of an actual torque value and a corrected torque value either alone or in combination with a further step of compensating the corrected torque value based on a mechanical power offset correction. The corrected torque value may include a Best Efficiency Point (BEP) torque value and may also be compensated for based on at least the current operating speed of the pump. The pump has a controller for performing the steps of the method. The controller can compensate the corrected torque value based on the square of the speed change of the pump. The comparison may include a ratio of the actual torque value to the corrected torque value.

    Abstract translation: 提供了一种用于控制诸如离心泵的泵的操作的方法和装置,其特征在于调节泵的操作的步骤,或者向泵的使用者发出不期望的操作条件或二者的警告, 基于实际转矩值和校正转矩值的比较,单独地或与基于机械功率偏移校正来补偿校正转矩值的另外步骤组合。 校正的扭矩值可以包括最佳效率点(BEP)扭矩值,并且还可以至少基于泵的当前操作速度来补偿。 泵具有用于执行该方法的步骤的控制器。 控制器可以根据泵的速度变化的平方来补偿校正的扭矩值。 比较可以包括实际扭矩值与校正扭矩值的比率。

    Torque controlled pump protection with mechanical loss compensation
    80.
    发明申请
    Torque controlled pump protection with mechanical loss compensation 有权
    扭矩控制泵保护,机械损耗补偿

    公开(公告)号:US20050252205A1

    公开(公告)日:2005-11-17

    申请号:US10846946

    申请日:2004-05-13

    CPC classification number: F04D15/0066 F04B2201/1202 F04D15/0254

    Abstract: A method and apparatus are provided for controlling the operation of a pump, such as a centrifugal pump, featuring steps of either adjusting the operation of the pump, or issues a warning to a user of the pump of an undesirable operating condition, or both, based on a comparison of an actual torque value and a corrected torque value either alone or in combination with a further step of compensating the corrected torque value based on a mechanical power offset correction. The corrected torque value may include a Best Efficiency Point (BEP) torque value and may also be compensated for based on at least the current operating speed of the pump. The pump has a controller for performing the steps of the method. The controller can compensate the corrected torque value based on the square of the speed change of the pump. The comparison may include a ratio of the actual torque value to the corrected torque value, and the ratio of the actual torque value to the corrected torque value may also be compared to ratios corresponding to either a dry run condition, a minimum flow condition, a runout condition, or some combination thereof.

    Abstract translation: 提供了一种用于控制诸如离心泵的泵的操作的方法和装置,其特征在于调节泵的操作的步骤,或者向泵的使用者发出不期望的操作条件或二者的警告, 基于实际转矩值和校正转矩值的比较,单独地或与基于机械功率偏移校正来补偿校正转矩值的另外步骤组合。 校正的扭矩值可以包括最佳效率点(BEP)扭矩值,并且还可以至少基于泵的当前操作速度来补偿。 泵具有用于执行该方法的步骤的控制器。 控制器可以根据泵的速度变化的平方来补偿校正的扭矩值。 比较可以包括实际转矩值与校正转矩值的比率,并且实际转矩值与校正转矩值的比率也可以与对应于干运行状态,最小流量条件, 跳动条件或其某种组合。

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