公开(公告)号：US20230243351A1

公开(公告)日：2023-08-03

申请号：US17649525

申请日：2022-01-31

申请人： Caterpillar Inc.

发明人： Mark Francis GRIMES ,  Andy PUBLES ,  Mark C. PAUL

IPC分类号： F04B49/20 ,  F04B49/06 ,  E21B43/26

CPC分类号： F04B49/20 ,  F04B49/065 ,  E21B43/26 ,  F04B2203/0207 ,  F04B2203/0209 ,  F04B2203/0204 ,  F04B2205/04

摘要： In some implementations, a controller may obtain a setting for a maximum discharge pressure associated with a fluid pump that is to be allowed during a hydraulic fracturing operation. The fluid pump may be driven by a motor that is controlled by a variable frequency drive (VFD). The controller may determine a maximum torque for the motor that achieves the maximum discharge pressure. The controller may cause, via the VFD, adjustment to a speed of the motor to maintain a torque of the motor at or below the maximum torque for the motor.

公开(公告)号：US20180128266A1

公开(公告)日：2018-05-10

申请号：US15345462

申请日：2016-11-07

申请人： Bio-Rad Laboratories, Inc.

发明人： Nathan Michael Gaskill-Fox ,  Daniel Nelson Fox

IPC分类号： F04B49/20 ,  F04B43/12 ,  F04B43/00 ,  F04B49/06 ,  F04B51/00

CPC分类号： F04B49/20 ,  F04B11/00 ,  F04B23/06 ,  F04B43/0072 ,  F04B43/1261 ,  F04B49/065 ,  F04B49/08 ,  F04B51/00 ,  F04B2205/04 ,  F04B2205/503

摘要： Methods and systems for pumping fluid through tubing are provided. Methods include orbiting one or more first rollers at multiple angular speeds around the periphery of a substantially circular first disk having a first radius with each first roller travelling at the same angular speed as the other first rollers, orbiting second rollers at a second angular speed around a substantially circular second disk having substantially the first radius, and increasing the pressure of fluid in tubing between one first roller and one second roller by causing the one or more first rollers to orbit at a first angular speed greater than the second angular speed so the one first roller moves along and fully compresses the tubing in a first section of the first disk, and simultaneously causing the one second roller to move along and fully compress the tubing in a first section of the second disk.

公开(公告)号：US20170314282A1

公开(公告)日：2017-11-02

申请号：US15583574

申请日：2017-05-01

申请人： Sucxess LLC

发明人： Axel Nix

IPC分类号： E04H4/12 ,  B01D35/143 ,  G01F9/00 ,  C02F1/00 ,  B01D24/46 ,  B01D29/66 ,  C02F103/42

CPC分类号： F04D15/0254 ,  C02F1/001 ,  C02F1/008 ,  C02F2103/42 ,  C02F2209/40 ,  C02F2303/16 ,  E04H4/1209 ,  E04H4/1245 ,  E04H4/1272 ,  F04B17/03 ,  F04B49/00 ,  F04B49/06 ,  F04B49/065 ,  F04B49/20 ,  F04B53/20 ,  F04B2203/0201 ,  F04B2203/0202 ,  F04B2205/02 ,  F04B2205/04 ,  F04B2205/09 ,  F04B2207/043 ,  F04D15/0066 ,  Y10T137/85954 ,  Y10T137/86027 ,  Y10T137/86397

摘要： A fluid circulation monitoring system includes a distributed processing system having a first processor located on-premises near a space filled with a circulating fluid and a second processor located off-premises. The first processor and the second processor are in communication with one another. A sensor is operatively connected to the first processor and senses at least one parameter associated with a flow rate of fluid through the circulation system. The distributed processing system is configured to process the at least one parameter and derive a volumetric fluid flow rate through a fluid pump which propels the fluid through the circulation system. Pattern recognition is applied to the at least one parameter to detect maintenance events and predict the need for maintenance events.

公开(公告)号：US20150345491A1

公开(公告)日：2015-12-03

申请号：US14818333

申请日：2015-08-05

申请人： JIANGSU HENGLI HYDRAULIC CO., LTD

发明人： Liping Wang ,  Tong Li ,  Haiming Hua ,  Dachao Lin ,  Lei Wei

IPC分类号： F04B49/22

CPC分类号： F04B49/22 ,  F04B49/08 ,  F04B2205/04

摘要： A plunger pump power control device and a control method thereof. The device comprises a valve body, a valve core, a valve sleeve, a stop plug, a spring pre-loaded mechanism, a feedback mechanism and a slide valve. The slide valve is provided within one end of the valve core. The stop plug is provided at one end of the valve body, and the spring pre-loaded mechanism is provided at the other end of. The valve sleeve, the valve core, and the slide valve are provided between the stop plug and the spring pre-loaded mechanism, and the feedback mechanism is hinged on the valve body. The device enables the hydraulic plunger pump to control the output power, the pump power output is simulated by two broken lines, and the error is less. It is flexible to load variable by the valve core through the pressure of the C-cavity.

摘要翻译： 柱塞泵动力控制装置及其控制方法。 该装置包括阀体，阀芯，阀套，止动塞，弹簧预加载机构，反馈机构和滑阀。 滑阀设置在阀芯的一端内。 止动塞设置在阀体的一端，弹簧预加载机构设置在另一端。 阀套，阀芯和滑阀设置在止动塞和弹簧预加载机构之间，反馈机构铰接在阀体上。 该装置使液压柱塞泵控制输出功率，泵功率输出由两条虚线模拟，误差较小。 通过C型腔的压力通过阀芯对变量进行加载是灵活的。

公开(公告)号：US08939731B2

公开(公告)日：2015-01-27

申请号：US13139710

申请日：2010-06-22

申请人： Xiang Zhou ,  Xianli Cao

发明人： Xiang Zhou ,  Xianli Cao

IPC分类号： F04B49/08 ,  F15B19/00 ,  F04B49/00 ,  F15B11/05

CPC分类号： F15B19/002 ,  F04B49/002 ,  F04B49/08 ,  F04B2205/04 ,  F15B11/055 ,  F15B2211/20553 ,  F15B2211/25 ,  F15B2211/6309 ,  F15B2211/6316 ,  F15B2211/6323 ,  F15B2211/6333 ,  F15B2211/6652

摘要： A character parameters obtaining method for a displacement control mechanism of a hydraulic pump and a detecting device for carrying out the method are disclosed. The method involves constructing a hydraulic system; outputting hydraulic energy by the hydraulic pump driven by a primary motor; detecting pressure of a displacement control mechanism; obtaining middle parameters by obtaining the time required for preset change of the pressure at the output end of the displacement control mechanism; obtaining character parameters of the displacement control mechanism according to the middle parameters. The method can obtain the character parameters of the displacement control mechanism by the pressure detection, so that the performance of the displacement control mechanism can be judged according to the obtained character parameters. The method avoids the need of obtaining the output flow of the hydraulic pump so as to eliminate the problem caused by using a flow meter or using an obliquity sensor to obtain the character parameters.

摘要翻译： 公开了一种用于液压泵的位移控制机构的特征参数获取方法和用于执行该方法的检测装置。 该方法涉及构建液压系统; 通过由主电动机驱动的液压泵输出液压能; 检测位移控制机构的压力; 通过获得在位移控制机构的输出端处预设改变压力所需的时间来获得中间参数; 根据中间参数获取位移控制机构的字符参数。 该方法可以通过压力检测获得位移控制机构的特征参数，从而可以根据获得的特征参数来判断位移控制机构的性能。 该方法避免了获得液压泵的输出流量，从而消除了使用流量计或使用倾斜传感器获得字符参数所引起的问题。

公开(公告)号：US08641383B2

公开(公告)日：2014-02-04

申请号：US11981527

申请日：2007-10-31

申请人： Humberto V. Meza ,  Nikhil Jitendra Gandhi ,  Quang Minh Truong

发明人： Humberto V. Meza ,  Nikhil Jitendra Gandhi ,  Quang Minh Truong

IPC分类号： F04B49/00 ,  F04B49/06

CPC分类号： F04B43/0081 ,  F04B43/0054 ,  F04B43/026 ,  F04B43/04 ,  F04B49/065 ,  F04B2203/0201 ,  F04B2203/0208 ,  F04B2205/04

摘要： Embodiments of the invention provide a method of controlling a pump. The method includes sensing a pressure in the pump and entering a low-flow mode when the sensed pressure in the pump is greater than a low pressure threshold. The method also includes reducing power to the pump when the sensed pressure is greater than a shut-off pressure during the low-flow mode and there is flow through the pump until the sensed pressure is less than the shut-off pressure. The method further includes turning the pump off when in the low-flow mode the sensed pressure is greater than the shut-off pressure and there is no flow through the pump.

摘要翻译： 本发明的实施例提供一种控制泵的方法。 该方法包括当泵中感测到的压力大于低压阈值时，感测泵中的压力并进入低流量模式。 该方法还包括当在低流量模式期间感测到的压力大于截止压力并且流过泵直到感测的压力小于关闭压力时，减小泵的功率。 该方法还包括在低流量模式下关闭泵，该感测压力大于关闭压力，并且不存在通过泵的流量。

公开(公告)号：US08382444B2

公开(公告)日：2013-02-26

申请号：US12983737

申请日：2011-01-03

申请人： George Gonnella ,  James Cedrone

发明人： George Gonnella ,  James Cedrone

IPC分类号： F04B49/06

CPC分类号： F04B13/00 ,  F04B1/08 ,  F04B23/04 ,  F04B23/06 ,  F04B41/06 ,  F04B43/088 ,  F04B49/06 ,  F04B49/065 ,  F04B49/08 ,  F04B49/103 ,  F04B51/00 ,  F04B2203/0209 ,  F04B2205/01 ,  F04B2205/03 ,  F04B2205/04

摘要： Systems and methods for monitoring operation of a pump, including verifying operation or actions of a pump, are disclosed. A baseline profile for one or more parameters of a pump may be established. An operating profile may then be created by recording one or more values for the same set of parameters during subsequent operation of the pump. The values of the baseline profile and the operating profile may then be compared at one or more points or sets of points. If the operating profile differs from the baseline profile by more than a certain tolerance an alarm may be sent or another action taken, for example the pumping system may shut down, etc.

摘要翻译： 公开了用于监视泵的操作的系统和方法，包括验证泵的操作或动作。 可以建立泵的一个或多个参数的基线曲线。 然后可以通过在泵的后续操作期间记录用于相同参数集合的一个或多个值来创建操作简档。 然后可以在一个或多个点或一组点处比较基线轮廓和操作轮廓的值。 如果操作配置文件与基线配置文件的差异超过一定容差，则可能会发送报警或采取其他操作，例如泵送系统可能会关闭等。

公开(公告)号：US20070128046A1

公开(公告)日：2007-06-07

申请号：US11292559

申请日：2005-12-02

申请人： George Gonnella ,  James Cedrone

发明人： George Gonnella ,  James Cedrone

IPC分类号： F04B41/06

CPC分类号： F04B1/08 ,  F04B23/04 ,  F04B23/06 ,  F04B41/06 ,  F04B43/088 ,  F04B49/065 ,  F04B49/08 ,  F04B49/103 ,  F04B51/00 ,  F04B2203/0209 ,  F04B2205/03 ,  F04B2205/04

摘要： Embodiments of the present invention are related to a pumping system that accurately dispenses fluid using a multiple stage (“multi-stage”) pump. More particularly, embodiments of the present invention provide for control of a feed stage pump to regulate fluid pressure at a downstream dispense stage pump. According to one embodiment of the present invention, a pressure sensor at the dispense stage pump determines the pressure in a dispense chamber. When the pressure reaches a predefined threshold, the dispense stage pump can begin to increase the available volume of the dispense chamber, thereby causing the pressure in the dispense chamber to drop. As the pressure decreases/increases at the downstream pump, the pressure applied by the upstream pump can bed increased/decreased.

摘要翻译： 本发明的实施例涉及一种使用多级（“多级”）泵精确分配流体的泵送系统。 更具体地，本发明的实施例提供了用于控制进料级泵以调节下游分配级泵处的流体压力的装置。 根据本发明的一个实施例，分配级泵处的压力传感器确定分配室中的压力。 当压力达到预定阈值时，分配级泵可以开始增加分配室的可用体积，从而使分配室中的压力下降。 随着下游泵的压力下降/增加，上游泵施加的压力可以增加/减少。

公开(公告)号：US07001156B2

公开(公告)日：2006-02-21

申请号：US10153772

申请日：2002-05-24

申请人： Chih-Ming Chen

发明人： Chih-Ming Chen

IPC分类号： F04B17/03

CPC分类号： F04B35/04 ,  F04B39/066 ,  F04B39/121 ,  F04B39/16 ,  F04B2205/04

摘要： An improved structure of an air inflation device is disclosed. External air is drawn to the motor and cylinder to provide rapid cooling so that the efficiency of the motor is maintained. In the present invention, a plurality of air filters is used to filter air. Thereby the air inflation device is useful and practical.

公开(公告)号：US06923916B1

公开(公告)日：2005-08-02

申请号：US10608072

申请日：2003-06-30

申请人： Kenji Hiraku ,  Kunihiko Takao ,  Hironori Kaji ,  Masahito Ito

发明人： Kenji Hiraku ,  Kunihiko Takao ,  Hironori Kaji ,  Masahito Ito

IPC分类号： G01N30/32 ,  F04B11/00 ,  F04B13/00 ,  F04B49/06 ,  G01N30/34 ,  B01D15/08

CPC分类号： F04B13/00 ,  F04B11/0083 ,  F04B49/06 ,  F04B2205/04 ,  G01N30/34 ,  G01N30/36

摘要： In a pump for feeding a liquid for chromatography, first and second plungers form first and second volumes respectively together with first and second chambers, the first plunger is prevented from changing the first volume sufficiently for feeding the liquid between the first and second volumes when the second plunger decreases the second volume to discharge the fluid from the second volume to an outlet path of the pump for the chromatography.

摘要翻译： 在用于进料用于色谱的液体的泵中，第一和第二柱塞分别与第一和第二腔室一起形成第一和第二容积，防止第一柱塞改变第一体积以便在第一和第二容积之间供给液体时， 第二柱塞减小第二体积以将流体从用于色谱的泵的第二体积排出到出口路径。