PUMPING UNIT FOR A MACHINE TO DISTRIBUTE CONCRETE
    5.
    发明申请
    PUMPING UNIT FOR A MACHINE TO DISTRIBUTE CONCRETE 有权
    用于分配混凝土的机器的泵送单元

    公开(公告)号:US20130129534A1

    公开(公告)日:2013-05-23

    申请号:US13813811

    申请日:2011-08-01

    Abstract: A pumping unit for a machine to distribute concrete includes a pair of cylinders provided with a relative pumping piston movable linearly for a determinate travel to feed the concrete to a determinate circuit to distribute the concrete; and a hydraulic command circuit operatively connected to both the cylinders, to determine an alternate pumping movement of the relative pumping pistons. The pumping unit includes at least a sensor member operatively associated to at least one of the cylinders in order to detect point-by-point one or more data relating to the operating condition of the pumping piston during its movement for the whole travel. The data includes at least one of position, speed, stress and direction of movement of the relative piston.

    Abstract translation: 用于分配混凝土的机器的泵送单元包括一对气缸,其具有相对泵送活塞,所述相对泵送活塞可线性运动以确定行进以将混凝土供给到确定的回路以分配混凝土; 以及可操作地连接到两个气缸的液压指令电路,以确定相对泵送活塞的替代泵送运动。 泵送单元至少包括与至少一个气缸可操作地相关联的传感器构件,以便在整个行程的运动期间逐点检测与泵送活塞的运行状况相关的一个或多个数据。 数据包括相对活塞的位置,速度,应力和运动方向中的至少一个。

    Linear compressor and apparatus to control the same
    6.
    发明授权
    Linear compressor and apparatus to control the same 失效
    线性压缩机和设备控制相同

    公开(公告)号:US07439692B2

    公开(公告)日:2008-10-21

    申请号:US10790700

    申请日:2004-03-03

    Applicant: Kwang Woon Lee

    Inventor: Kwang Woon Lee

    Abstract: A linear compressor and apparatus to control the linear compressor are provided which allows a frequency of a drive current supplied to a drive motor to synchronize with a resonance frequency varying according to a load fluctuation, in real time, thus obtaining a maximum efficiency of the linear compressor. The linear compressor includes a drive motor, a piston reciprocating by the drive motor and a control unit generating a reference current having a phase difference of 90° with respect to a displacement waveform of the piston and a frequency equal to the displacement waveform of the piston, and controls a drive current supplied to the drive motor to synchronize with a resonance frequency of the piston by synchronizing the drive current with the reference current.

    Abstract translation: 提供了一种用于控制线性压缩机的线性压缩机和装置,其允许提供给驱动电动机的驱动电流的频率与根据负载波动变化的谐振频率实时同步,从而获得线性压缩机的最大效率 压缩机。 线性压缩机包括驱动电动机,由驱动电动机往复运动的活塞和控制单元,该控制单元生成相对于活塞的位移波形具有90°的相位差的参考电流,并且频率等于活塞的位移波形 并且通过使驱动电流与参考电流同步来控制提供给驱动电动机的驱动电流与活塞的共振频率同步。

    Method and System for Optimizing Downhole Fluid Production
    7.
    发明申请
    Method and System for Optimizing Downhole Fluid Production 审中-公开
    井下流体生产优化方法与系统

    公开(公告)号:US20080240930A1

    公开(公告)日:2008-10-02

    申请号:US12090250

    申请日:2005-10-13

    Abstract: A method and system for pumping unit with an elastic rod system is applied to maximize fluid production. The maximum stroke of the pump and the shortest cycle time are calculated based on all static and dynamic properties of downhole and surface components without a limitation to angular speed of the prime mover. Limitations of structural and fatigue strength are incorporated into the optimization calculation to ensure safe operation while maximizing pumped volume and minimizing energy consumption. Calculated optimal prime mover speed is applied to the sucker rod pump by means of beam pumping, long stroke or hydraulic pumping unit by controlling velocity, acceleration and torque of the electric prime mover or by controlling pressure and flow rate in hydraulically actuated sucker rod pumping system.

    Abstract translation: 应用一种用弹性杆系统进行泵送单元的方法和系统,以最大化流体生产。 泵的最大行程和最短的循环时间是基于井下和表面部件的所有静态和动态特性而不受原动机角速度限制的。 结构和疲劳强度的限制被纳入优化计算,以确保安全运行,同时最大限度地提高抽水量并最大限度地降低能耗。 通过控制电动泵的速度,加速度和扭矩或通过控制液压驱动抽油杆泵送系统中的压力和流量,通过波束泵送,长行程或液压泵送单元,计算出最佳原动机速度应用于抽油杆泵 。

    Magnetic drive metering pump
    8.
    发明申请
    Magnetic drive metering pump 有权
    磁力计量泵

    公开(公告)号:US20070040454A1

    公开(公告)日:2007-02-22

    申请号:US11507167

    申请日:2006-08-21

    CPC classification number: F04B17/042 F04B43/04 F04B2201/0201 F04B2201/0202

    Abstract: A magnetic drive metering pump in which a movable thrust member fixed to a connecting rod is axially movable in a longitudinal axis in a magnet shroud anchored in a pump housing so that the thrust member with the connecting rod, on electrically driving (actuating) the magnetizing coil, is drawn into the magnet shroud against the force of a recuperating spring, reducing an air gap between the thrust member and an inner face of magnetic shroud, into a bore in the magnet shroud and after deactivating the magnet the thrust member is returned to the starting position by the recuperating spring so that the thrust member and an elastic displacement member actuated thereby on carries out an oscillating motion continued activation and deactivation of the magnetizing coil, which diaphragm cooperates alternately with an outlet and an inlet valve to produce a pump stroke (pressure stroke) and a priming stroke in a metering head arranged in the longitudinal axis. In such a magnetic drive metering pump, a reference element is associated with the module constituted by the thrust member and connecting rod, the position of which reference element is detected by a positional sensor, wherein the positional sensor provides an actual signal which is in a fixed relationship to the position of the reference element, and in that the motion of the unit formed by the thrust member and the connecting rod is influenced as regards control accuracy via a control circuit so that it follows a predetermined nominal profile.

    Abstract translation: 一种磁驱动计量泵,其中固定到连杆的可移动推力构件在锚定在泵壳体中的磁体罩中的纵向轴线中可轴向移动,使得具有连接杆的推力构件在驱动(致动)磁化 线圈被克服弹簧的力吸入磁体罩中,将推力构件和磁性护罩的内表面之间的空气间隙减小到磁体罩的孔中,并且在推动构件返回到 通过恢复弹簧的起始位置,使得推动构件和由此起作用的弹性位移构件执行振动运动,继续激活和去激活磁化线圈,该隔膜与出口和入口阀交替地配合以产生泵冲程 (压力冲程)和在纵向轴线上布置的计量头中的起动冲程。 在这种磁驱动计量泵中,参考元件与由推力元件和连杆组成的模块相关联,其中位置传感器检测出基准元件的位置,其中位置传感器提供一个实际信号, 与参考元件的位置的固定关系,并且由推力构件和连杆形成的单元的运动通过控制电路受控于控制精度,使得其遵循预定的标称轮廓。

    Sludge pump with management system
    9.
    发明授权
    Sludge pump with management system 失效
    污泥泵配管理系统

    公开(公告)号:US06779983B1

    公开(公告)日:2004-08-24

    申请号:US10265055

    申请日:2002-10-04

    Applicant: David A. Olson

    Inventor: David A. Olson

    Abstract: A viscous material (sludge) pump, a method of accurately estimating output of such a pump and a method of efficiently managing such a pump. The pump can be the single or double cylinder variety. The pump is calibrated to determine a calibrated sludge-weight output of the pump in terms of a parameter defined as a “lost travel” position of the piston in the pump chamber. This position is defined in terms of the position of the piston in the chamber when the pressure in the chamber reaches a preselected reference pressure expressed in terms of a percentage of the maximum pressure reached in the chamber during a just previous discharge stroke of the piston. The lost travel parameter is used for comparison purposes to accurately estimate actual pump output based on the calibrated pump output at the calibrated value of the lost travel parameter. The pump is managed efficiently by management of the speed of the feed auger. This assures that an approximately optimal amount of material is loaded into the pumping chamber each pumping cycle. The pump is also managed by management of the pump stroke distance and speed.

    Abstract translation: 粘性物质(污泥)泵,精确估计这种泵的输出的方法以及有效地管理这种泵的方法。 泵可以是单缸或双缸。 校准泵以根据定义为泵室中活塞的“空运”位置的参数来确定泵的校准污泥重量输出。 当腔中的压力达到预先确定的参考压力时,该位置是根据活塞在腔室中的位置来定义的,该预定参考压力以活塞刚刚排出冲程之前在腔室中达到的最大压力的百分比表示。 丢失的行程参数用于比较目的,以根据失去行程参数的校准值的校准泵输出精确估计实际泵输出。 通过管理进料螺旋钻的速度来有效地管理泵。 这确保了近似最佳量的材料被加载到泵送室中每个泵送循环。 该泵还通过管理泵行程距离和速度进行管理。

    Linear compressor drive device
    10.
    发明授权
    Linear compressor drive device 有权
    线性压缩机驱动装置

    公开(公告)号:US06753665B2

    公开(公告)日:2004-06-22

    申请号:US10333268

    申请日:2003-04-22

    Abstract: A linear compressor driving apparatus having an inverter which supplies a driving current of a predetermined frequency to a linear compressor. The linear compressor driving apparatus further includes an inverter controller for controlling the inverter on the basis of resonance frequency information so that the frequency of an output current from the inverter becomes equal to the resonance frequency, and instantaneous values of an output current and an output voltage from the inverter are measured at a phase timing in which an amount of change in the output current of the inverter becomes zero. A piston stroke is calculated from these measured values. In such a linear compressor driving apparatus, a stroke and a top clearance of the piston of the linear compressor can be accurately detected by relatively simple arithmetic processing without using a position sensor.

    Abstract translation: 一种线性压缩机驱动装置,具有向线性压缩机供给预定频率的驱动电流的逆变器。 线性压缩机驱动装置还包括逆变器控制器,其基于谐振频率信息控制逆变器,使得来自逆变器的输出电流的频率变得等于谐振频率,并且输出电流和输出电压的瞬时值 在逆变器的输出电流的变化量变为零的相位定时测量来自逆变器。 从这些测量值计算活塞行程。 在这种线性压缩机驱动装置中,可以通过相对简单的运算处理来精确地检测线性压缩机的活塞的行程和顶部间隙,而不使用位置传感器。

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