公开(公告)号：US11879451B2

公开(公告)日：2024-01-23

申请号：US17198584

申请日：2021-03-11

Applicant: ClearMotion, Inc.

Inventor： Colin Patrick O'Shea ,  Clive Tucker ,  Brian Alexander Selden

IPC: F04B49/06 ,  F04B49/10 ,  F04B49/20 ,  F04C28/08

CPC classification number: F04B49/065 ,  F04B49/103 ,  F04B49/20 ,  F04B2201/0201 ,  F04B2201/0208 ,  F04B2201/1202 ,  F04B2201/1208 ,  F04B2203/0207 ,  F04C28/08

Abstract: Presented herein are systems and methods for attenuating flow ripple generated by a hydraulic pump. In certain aspects, a method and system for operating a hydraulic positive displacement pump according to a stabilized command profile are disclosed, such that flow ripple generated by operation of the pump according to the stabilized command profile is attenuated as compared to operation of the pump according to a corresponding nominal command profile. In other aspects, a pressure-balanced active buffer is disclosed that allow for at least partially cancelling flow ripple in a hydraulic circuit comprising a pump. In another aspect, a method for generating ripple maps for a pump is disclosed. Such ripple maps may be used, for example, to determine the stabilized command profile used to operate the pump, or may be used by the pressure-balanced active buffer to counteract ripple in the hydraulic circuit.

公开(公告)号：US20180038366A1

公开(公告)日：2018-02-08

申请号：US15228747

申请日：2016-08-04

Applicant: Schneider Electric USA, Inc.

Inventor： Zackery Sobin ,  Scott Guimond ,  James Redmond

IPC: F04B49/20 ,  F04B47/02 ,  E21B43/12 ,  F04B53/14 ,  E21B47/00 ,  F04B19/22 ,  F04B51/00

CPC classification number: F04B47/022 ,  E21B43/127 ,  E21B47/0008 ,  F04B49/065 ,  F04B49/20 ,  F04B53/14 ,  F04B2201/1202 ,  F04B2201/1211

Abstract: A method and system for determining the pump fillage of a sucker rod pumping system using torque feedback when pumping wellbore fluids from the particular well on which the sucker rod pumping system is installed. During the pump stroke, a microprocessor samples torque of the pump's mechanical system at an associated horsehead position at regular intervals and once the stroke is completed the raw torque samples and associated horsehead positions are placed in an array, the array of raw torque samples and horsehead positions can be filtered by the microprocessor into a second filtered array and then converted by the microprocessor into a rotatum array (derivative of torque with respect to time) of one or both of the raw or filtered arrays and stored as a rotatum array. The down stroke portion of the rotatum array is then analyzed by the microprocessor to determine the horsehead position when the piston of the down hole pump encounters wellbore fluid in the well (pump fillage). The microprocessor, based on the determined pump fillage, adjusts the speed of the pumping system to maintain an optimal pump fillage determined to be the most economical for the particular well on which the sucker rod pumping system is installed.

公开(公告)号：US20160047399A1

公开(公告)日：2016-02-18

申请号：US14783958

申请日：2014-04-14

Applicant: DOOSAN INFRACORE CO., LTD.

Inventor： Dong Mok Kim ,  Nag In Kim ,  Yong Tak Hyun ,  Duk Sang Kim ,  Byung Il Kang ,  Min Seok Ko ,  Jung Ho Kim ,  Kyung Min Park ,  Lee Hyoung Cho

IPC: F15B11/028 ,  F15B13/16 ,  F15B15/28 ,  F15B11/08

CPC classification number: F15B11/028 ,  E02F9/2235 ,  E02F9/2296 ,  F02D29/04 ,  F04B17/05 ,  F04B49/065 ,  F04B2201/1202 ,  F15B11/08 ,  F15B13/16 ,  F15B15/28 ,  F15B2211/20553 ,  F15B2211/255 ,  F15B2211/405 ,  F15B2211/765

Abstract: The present disclosure relates to a method, a device, and a system for controlling a hydraulic pump of a construction machine, the system comprising: an engine; an engine control unit configured to control the engine by using engine limit torque information and current engine torque information of the engine; a hydraulic pump operated by power supplied from the engine; at least one actuator driven by a hydraulic pressure discharged from the hydraulic pump; and a hydraulic pump control device configured to control a limited swash plate angle of the hydraulic pump by using a torque of the hydraulic pump and the engine limit torque information received from the engine control unit.

Abstract translation: 本公开涉及一种用于控制建筑机械的液压泵的方法，装置和系统，该系统包括：发动机; 发动机控制单元，被配置为通过使用发动机的发动机限制转矩信息和当前发动机转矩信息来控制发动机; 由发动机供电的液压泵; 由从液压泵排出的液压驱动的至少一个致动器; 以及液压泵控制装置，其被配置为通过使用液压泵的扭矩和从发动机控制单元接收的发动机极限转矩信息来控制液压泵的有限的斜盘角度。

公开(公告)号：US20160003234A1

公开(公告)日：2016-01-07

申请号：US14321543

申请日：2014-07-01

Applicant: Bristol, Inc. d/b/a Remote Automation Solutions

Inventor： Thomas Matthew Mills

IPC: F04B49/06 ,  E21B43/12 ,  F04B47/02

CPC classification number: F04B49/065 ,  E21B43/126 ,  F04B47/00 ,  F04B47/02 ,  F04B47/022 ,  F04B47/14 ,  F04B2201/1202 ,  F04B2201/121 ,  F04B2201/1211

Abstract: Methods and apparatus to determine parameters of a pumping unit for use with wells are disclosed. An example apparatus includes a housing and a processor positioned in the housing. The processor is to determine a first load on a polished rod of a pumping unit, to estimate a first torque of a motor of the pumping unit, and determine a first torque factor for the pumping unit. The processor is to, based on the first load, the first torque, and the first torque factor, determine a phase angle of a counterbalance of the pumping unit or a moment of the counterbalance.

Abstract translation: 公开了用于确定与井一起使用的泵送单元的参数的方法和装置。 示例性装置包括壳体和位于壳体中的处理器。 处理器用于确定泵送单元的抛光棒上的第一负载，以估计泵送单元的电动机的第一扭矩，并确定泵送单元的第一扭矩因子。 处理器将基于第一负载，第一扭矩和第一扭矩因子确定泵送单元的平衡的相位角或平衡的力矩。

公开(公告)号：US09200623B2

公开(公告)日：2015-12-01

申请号：US13242884

申请日：2011-09-23

Applicant: Mathieu Romain

Inventor： Mathieu Romain

IPC: F04B49/06 ,  F04B49/08 ,  F04B5/02 ,  F04B15/02 ,  F04B49/20

CPC classification number: F04B5/02 ,  F04B15/02 ,  F04B49/06 ,  F04B49/20 ,  F04B2201/1201 ,  F04B2201/1202 ,  F04B2201/1203 ,  F04B2203/0207 ,  F04B2203/0209 ,  F04B2205/04

Abstract: A method for controlling a drive unit mechanically connected to a reciprocating linear-motion double-acting pump includes the use of speed-regulating control during the phase in which the piston is moving in just one direction, ascent (109) or descent (102), and the use of torque-regulating control immediately after the reversal (107, 114) of the direction of travel. The method is applicable to a control device and to a drive unit mechanically connected to a reciprocating linear-motion double-acting pump.

Abstract translation: 一种用于控制机械地连接到往复式直线运动双作用泵的驱动单元的方法包括在活塞沿一个方向运动的阶段中使用速度调节控制，上升（109）或下降（102） ，并且在行进方向的反转（107,114）之后立即使用扭矩调节控制。 该方法适用于与往复式直线运动双作用泵机械连接的控制装置和驱动单元。

公开(公告)号：US20120076666A1

公开(公告)日：2012-03-29

申请号：US13242884

申请日：2011-09-23

Applicant: Mathieu Romain

Inventor： Mathieu Romain

IPC: F04B49/20

CPC classification number: F04B5/02 ,  F04B15/02 ,  F04B49/06 ,  F04B49/20 ,  F04B2201/1201 ,  F04B2201/1202 ,  F04B2201/1203 ,  F04B2203/0207 ,  F04B2203/0209 ,  F04B2205/04

Abstract: A method for controlling a drive unit mechanically connected to a reciprocating linear-motion double-acting pump includes the use of speed-regulating control during the phase in which the piston is moving in just one direction, ascent (109) or descent (102), and the use of torque-regulating control immediately after the reversal (107, 114) of the direction of travel. The method is applicable to a control device and to a drive unit mechanically connected to a reciprocating linear-motion double-acting pump.

Abstract translation: 一种用于控制机械地连接到往复式直线运动双作用泵的驱动单元的方法包括在活塞沿一个方向运动的阶段中使用速度调节控制，上升（109）或下降（102） ，并且在行进方向的反转（107,114）之后立即使用扭矩调节控制。 该方法适用于与往复式直线运动双作用泵机械连接的控制装置和驱动单元。

公开(公告)号：US20090220352A1

公开(公告)日：2009-09-03

申请号：US12040444

申请日：2008-02-29

Applicant: Peter T. Carstensen

Inventor： Peter T. Carstensen

IPC: F04B49/06

CPC classification number: F04B17/03 ,  F04B49/065 ,  F04B2201/1202 ,  F04B2201/1208 ,  F04B2203/0201 ,  F04B2203/0207 ,  F04B2203/0209 ,  F04B2205/05 ,  F04B2205/09 ,  F04B2205/13

Abstract: A method and system for monitoring and controlling a hydraulic pump condition. More specifically, the invention relates to a method and device for monitoring and controlling a hydraulic actuated process indirectly by monitoring and controlling an electric motor driving a positive displacement hydraulic pump. This invention also relates to a precision hydraulic energy delivery system. Direct coupling of the pump to a primary mover (motor) and related motor control allows for complete motion control of a hydraulically driven machine without the use of any downstream devices. By employing motion control algorithms in the motor control, the hydraulic output at the pump head is controlled in a feed forward method.

Abstract translation: 一种用于监测和控制液压泵状态的方法和系统。 更具体地说，本发明涉及通过监控和控制驱动正排量液压泵的电动机来间接地监测和控制液压致动过程的方法和装置。 本发明还涉及精密液压能量输送系统。 泵与原动机（电动机）和相关电动机控制的直接耦合允许液压驱动机器的完全运动控制，而不使用任何下游装置。 通过在电动机控制中采用运动控制算法，以前馈方式控制泵头的液压输出。

公开(公告)号：US20090163318A1

公开(公告)日：2009-06-25

申请号：US12093931

申请日：2006-12-04

Applicant: Nobuo Matsuyama

Inventor： Nobuo Matsuyama

IPC: F16H61/42

CPC classification number: E02F9/2246 ,  B60W10/06 ,  B60W10/30 ,  B60W30/1882 ,  B60W2510/0638 ,  B60W2510/1025 ,  E02F9/2292 ,  E02F9/2296 ,  F02D29/04 ,  F04B17/03 ,  F04B23/04 ,  F04B49/06 ,  F04B2201/1202 ,  F04B2203/0604 ,  F04B2203/0605 ,  F15B2211/20538 ,  F15B2211/20546 ,  F15B2211/265 ,  F15B2211/6309 ,  F15B2211/633 ,  F15B2211/6346 ,  F16H61/465 ,  F16H61/468 ,  Y10T477/636

Abstract: An engine load control device is adapted to a working vehicle in which output of an engine is transmitted to drive wheels and to hydraulic actuators including a working equipment hydraulic actuator via a plurality of variable capacity hydraulic pumps. The control device includes an engine speed detection unit that detects an engine speed, an instruction content detection unit that detects contents of instructions of a speed instruction device, a hydraulic pump load detection unit that detects load of at least one load detection hydraulic pump among the variable capacity hydraulic pumps, and an absorption torque control unit. The absorption torque control unit controls absorption torque of at least one control hydraulic pump other than the load detection hydraulic pump based on detection results of the engine speed detection unit, the instruction content detection unit, and the hydraulic pump load detection unit.

Abstract translation: 发动机负载控制装置适用于其中发动机的输出被传递到驱动轮的工作车辆和经由多个可变容量液压泵的包括工作设备液压致动器的液压致动器。 控制装置包括检测发动机转速的发动机转速检测单元，检测速度指示装置的指令内容的指示内容检测单元，检测至少一个负载检测液压泵的负荷的液压泵负载检测单元 可变容量液压泵和吸收扭矩控制单元。 吸收扭矩控制单元基于发动机转速检测单元，指示内容检测单元和液压泵负载检测单元的检测结果来控制除了负载检测液压泵以外的至少一个控制液压泵的吸收转矩。

公开(公告)号：US20080288185A1

公开(公告)日：2008-11-20

申请号：US12153280

申请日：2008-05-15

Applicant: Yoshikatsu Sawada ,  Yasutane Hijikata

Inventor： Yoshikatsu Sawada ,  Yasutane Hijikata

IPC: G01L3/00

CPC classification number: F04B35/002 ,  F04B2201/1202 ,  F04B2205/09

Abstract: A compressor drive torque estimating device able to suppress discrepancy between an estimated drive torque due to delay of a switching timing of a torque estimating means of a compressor and an actual drive torque of the compressor, provided with a flow rate detecting means for detecting a refrigerant flow rate, a check valve opening only in a refrigerant discharge direction in the compressor, a storage part storing estimated drive torque characteristics determining the correspondence between a drive torque behavior of the compressor and an elapsed time from the start of operation of the compressor, a first estimated drive torque calculating means for calculating an estimated drive torque based on estimated torque characteristic stored in the storage part, a second estimated drive torque calculating means for calculating the estimated drive torque using a flow rate detecting means, and an estimated drive torque switching means for switching from the first estimated drive torque calculating means to the second estimated drive torque calculating means, the estimated drive torque switching means for switching from the first estimated drive torque calculating means to the second estimated drive torque calculating means based on a physical quantity corresponding to a valve opening pressure of the check valve.

Abstract translation: 一种压缩机驱动转矩估计装置，其能够抑制由压缩机的转矩估计装置的切换定时的延迟引起的估计驱动转矩与压缩机的实际驱动转矩之间的差异，设置有用于检测制冷剂的流量检测装置 流量，仅在压缩机中的制冷剂排出方向上的止回阀打开，存储估计的驱动转矩特性的存储部，其确定压缩机的驱动转矩特性与从压缩机的运转开始起的经过时间之间的对应关系， 第一估计驱动转矩计算装置，用于基于存储在存储部分中的估计转矩特性来计算估计的驱动转矩;第二估计驱动转矩计算装置，用于使用流量检测装置计算估计的驱动转矩;以及推定驱动转矩切换装置 用于从第一估计的驱动转矩计算器切换 第二估计驱动转矩计算装置，用于根据与止回阀的开阀压力相对应的物理量从第一估计驱动转矩计算装置切换到第二估计驱动转矩计算装置的估计驱动转矩切换装置; 。

公开(公告)号：US06692236B1

公开(公告)日：2004-02-17

申请号：US10030495

申请日：2001-12-31

Applicant: Dorin Filippo ,  Dami Maurizio

Inventor： Dorin Filippo ,  Dami Maurizio

IPC: F04B2500

CPC classification number: F04B25/005 ,  F04B27/005 ,  F04B39/0094 ,  F04B2201/1202

Abstract: The two cylinder and piston systems (1, 3), operating in series, are driven by a crankshaft, with a minimum or even zero phase difference.

Abstract translation: 串联运行的两个气缸和活塞系统（1,3）由曲轴驱动，最小或甚至零相位差。