HIGH TURN DOWN RATIO DIRECT CONTROL FOR VARIABLE DISPLACEMENT PUMPS

    公开(公告)号:US20240240630A1

    公开(公告)日:2024-07-18

    申请号:US18096932

    申请日:2023-01-13

    Abstract: A system includes a variable displacement pump (VDP) in fluid communication with an inlet line and with an outlet line. The VDP includes a variable displacement mechanism configured to vary pressure to the outlet line. A bypass valve (BPV) includes a BPV inlet in fluid communication with the outlet line, and a BPV outlet in fluid communication with a bypass line that feeds into the inlet line upstream of the VDP. An actuator is operatively connected to control the BPV to vary flow from the BPV inlet to the bypass line. A controller is operatively connected to the actuator to control recirculation flow passed through the BPV based on requested flow from a downstream system supplied by the outlet line and based on a predetermined low threshold of flow through the VDP.

    Method and device for cleaning a channel using a diaphragm pump module

    公开(公告)号:US11697139B2

    公开(公告)日:2023-07-11

    申请号:US16337655

    申请日:2018-02-15

    Inventor: Jerzy Domeracki

    Abstract: A method and an apparatus for cleaning a channel, especially a transmission and/or cooling channel, in any type of device, machine, installation, and/or tool, particularly in any type of heat exchanger and/or a molding core, cavity and/or insert is proposed, wherein a channel is cleaned through dynamic, bi-directional pulsation of cleaning medium inside the to-be-cleaned channel, the method being realized by a cleaning apparatus equipped with a diaphragm pump module, plugged either only in the feed side of the transmission line or in the feed side and in the return side, which, after connecting the diaphragm pump module to the external energy source and shutting off the flow control system from the reservoir and the feed pump, allows for putting cleaning medium into a state of two-way dynamic pulsating motion.

    SYSTEM AND METHOD FOR EVALUATING RECIPROCATING DOWNHOLE PUMP DATA USING POLAR COORDINATE ANALYTICS

    公开(公告)号:US20230184068A1

    公开(公告)日:2023-06-15

    申请号:US18105992

    申请日:2023-02-06

    Inventor: Victoria Pons

    Abstract: A method for evaluating data from a reciprocating downhole pump includes the steps of acquiring downhole position and load data, providing the position and load data to a processing unit, normalizing the position and load data, converting the position and load data to a calculated polar coordinate data set, evaluating the calculated polar coordinate data set to determine a condition or occurrence at the reciprocating pump, and outputting calculated key parameters for controlling and optimizing the reciprocating pump and beam pumping unit. The method further comprises a step of creating a library of reference data sets, comparing the calculated polar data set against the library of ideal and reference data sets, identifying one or more reference data sets that match one or more portions of the calculated polar data set, and outputting the probability of one or more of the known conditions within the calculated polar data set.

    BEARING SYSTEM FOR RECIPROCATING PUMP AND METHOD OF ASSEMBLY
    5.
    发明申请
    BEARING SYSTEM FOR RECIPROCATING PUMP AND METHOD OF ASSEMBLY 审中-公开
    用于补充泵的轴承系统和组装方法

    公开(公告)号:US20160025090A1

    公开(公告)日:2016-01-28

    申请号:US14808581

    申请日:2015-07-24

    Abstract: A power end frame assembly for a reciprocating pump that includes a first and second end plate segment each including annular bearing support surfaces configured to support a crankshaft bearing assembly. At least one middle plate segment is disposed between the first and second end plate segments and includes an annular bearing support surface configured to support a crankshaft bearing assembly. The annular bearing support surfaces of the first and second end plate segments and the at least one middle plate segment each have a diameter and are coaxially aligned. The diameter of at least one of the first and second end plate segments is different from the diameter of the at least one middle plate segment to facilitate insertion and removal of the crankshaft bearing assembly from the power end frame assembly.

    Abstract translation: 一种用于往复式泵的动力端框架组件,其包括第一和第二端板段,每个端板段包括构造成支撑曲轴轴承组件的环形轴承支撑表面。 至少一个中间板段设置在第一和第二端板段之间,并且包括构造成支撑曲轴轴承组件的环形轴承支撑表面。 第一端板段和第二端板段的环形轴承支撑表面和至少一个中间板段各自具有直径并同轴对准。 第一和第二端板段中的至少一个的直径不同于至少一个中间板段的直径,以便于从动力端框架组件插入和移除曲轴轴承组件。

    Method and System For Injecting Slurry Using Two Tanks With Valve Timing Overlap

    公开(公告)号:US20180230790A1

    公开(公告)日:2018-08-16

    申请号:US15927410

    申请日:2018-03-21

    Inventor: Eli Oklejas, JR.

    Abstract: A slurry injection system has a plurality of slurry valves fluidically coupled to first and second elongated tanks. In the first state, the slurry valves communicate high pressure slurry from the second volume to a site and communicate low pressure slurry to the fourth volume. In the second state, the slurry valves communicate low pressure slurry to the second volume and high pressure slurry from the fourth volume to the slurry injection site and in the intermediate state communicating high pressure slurry simultaneously from the first elongated tank and the second elongated tank to the slurry injection site. In the first state clear fluid valves fluidically communicate high pressure clear fluid to the first volume and low pressure clear fluid from the third volume and, in a second state, communicate low pressure clear fluid from the first volume and high pressure clear fluid to the third volume.

    Power end frame segment
    9.
    外观设计

    公开(公告)号:USD791192S1

    公开(公告)日:2017-07-04

    申请号:US29534054

    申请日:2015-07-24

    Abstract: A power end frame assembly for a reciprocating pump that includes a first and second end plate segment each including annular bearing support surfaces configured to support a crankshaft bearing assembly. At least one middle plate segment is disposed between the first and second end plate segments and includes an annular bearing support surface configured to support a crankshaft bearing assembly. The annular bearing support surfaces of the first and second end plate segments and the at least one middle plate segment each have a diameter and are coaxially aligned. The diameter of at least one of the first and second end plate segments is different from the diameter of the at least one middle plate segment to facilitate insertion and removal of the crankshaft bearing assembly from the power end frame assembly.

    Electrically Actuated Pressure Regulating Valve for an Adjustable Hydrostatic Pump, and Adjustable Hydrostatic Pump having a Pressure Regulating Valve
    10.
    发明申请
    Electrically Actuated Pressure Regulating Valve for an Adjustable Hydrostatic Pump, and Adjustable Hydrostatic Pump having a Pressure Regulating Valve 审中-公开
    用于可调静压泵的电动压力调节阀和具有压力调节阀的可调节静液压泵

    公开(公告)号:US20150226204A1

    公开(公告)日:2015-08-13

    申请号:US14619683

    申请日:2015-02-11

    Abstract: An electroproportionally controlled differential pressure valve cartridge includes actuation and tank ports on an outer circumference, and a pump port on a face-side. A spring preloads a piston into a position that relieves pressure from the actuation port to the tank port. A current increase through an electromagnet opposite the pump port and a pressure increase at the pump port counter the spring to open a connection from the pump port to the actuation port. A concentric opening extends from the pump port to a first piston surface. A duct extends from the first piston surface to a pump chamber. A further duct extends from the pump port to a spring chamber between the pump chamber and electromagnet. In the spring chamber, pressure over a second piston surface counters pressure over the first piston surface.

    Abstract translation: 电子差压控制的差压阀芯包括在外圆周上的致动和罐口,以及面侧的泵口。 弹簧将活塞预加载到将压力从致动端口释放到罐口的位置。 通过与泵口相对的电磁体的电流增加,并且在泵口处的压力增加与弹簧相反,以打开从泵口到致动端口的连接。 同心开口从泵口延伸到第一活塞表面。 管道从第一活塞表面延伸到泵室。 另外的管道从泵口延伸到泵室和电磁体之间的弹簧室。 在弹簧室中,第二活塞表面上的压力控制在第一活塞表面上的压力。

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