公开(公告)号：US20170335834A1

公开(公告)日：2017-11-23

申请号：US15162024

申请日：2016-05-23

Applicant: Caterpillar Inc.

Inventor： Sunil Bean ,  Daniel Puckett ,  Andrew Neaville

IPC: F04B17/03 ,  F02M59/10

CPC classification number: F04B17/03 ,  F02D19/0647 ,  F02D19/0663 ,  F02M21/0218 ,  F02M21/0221 ,  F02M21/0275 ,  F02M21/0281 ,  F02M21/0287 ,  F02M43/02 ,  F02M53/02 ,  F02M59/105 ,  F02M2200/245 ,  F04B1/124 ,  F04B1/128 ,  F04B9/107 ,  F04B9/1176 ,  F04B49/06 ,  F04B2201/0201 ,  Y02T10/32 ,  Y02T10/36

Abstract: A fluid system such as a fuel system includes a fluid supply and a pump coupled between the fluid supply and a plurality of fluid delivery devices. The pump can be a cryogenic pump such as for liquefied natural gas, with valve mechanisms to control hydraulic actuation of a piston used to pump the liquefied natural gas. An electrically conductive coil is coupled with the piston. Related methodology is disclosed.

公开(公告)号：US20170199513A1

公开(公告)日：2017-07-13

申请号：US15468611

申请日：2017-03-24

Applicant: Wagner Spray Tech Corporation

Inventor： Daniel R. Zientara ,  Lam H. Nguyen ,  Jonathan L. Schaumann

IPC: G05B19/416 ,  F04B49/06 ,  F04B51/00 ,  F04B49/02

CPC classification number: G05B19/416 ,  B05B9/0413 ,  B05B12/081 ,  F04B15/02 ,  F04B17/06 ,  F04B49/02 ,  F04B49/06 ,  F04B49/065 ,  F04B51/00 ,  F04B2201/0201 ,  F16H25/2015 ,  F16H25/2252 ,  G05B2219/41312

Abstract: A liquid delivery system is presented. The liquid delivery system comprises a source of fluid coupled to an outlet. The liquid delivery system also includes a hydraulic cylinder coupled to the source of fluid. The hydraulic cylinder has a piston movable between a first limit position and a second limit position during an operational cycle. The hydraulic cylinder is configured to pressurize fluid received from the source of fluid, and deliver the pressurized fluid to the outlet. The liquid delivery system also comprises a rod connected to the piston and extending out of the cylinder. The liquid delivery system also comprises a sensor configured to sense a position of the rod to provide a signal indication of the piston with respect to the first position or the second position. An indication of the sensed position is provided to a controller, and the controller is configured to send a control signal to initiate a normal operation loop based on the sensed position.

公开(公告)号：US09695806B2

公开(公告)日：2017-07-04

申请号：US12839997

申请日：2010-07-20

Applicant: Nicholas P. Van Brunt ,  John A. Kivisto ,  Theodore W. Jagger

Inventor： Nicholas P. Van Brunt ,  John A. Kivisto ,  Theodore W. Jagger

IPC: F04B17/04 ,  F04B19/22 ,  A61M1/14 ,  F04B27/00 ,  F04B35/04 ,  H02K33/16 ,  H02K16/00

CPC classification number: F04B17/04 ,  A61M1/14 ,  A61M16/0057 ,  A61M16/0072 ,  A61M16/101 ,  A61M2202/0208 ,  A61M2205/42 ,  A61M2209/088 ,  F04B17/042 ,  F04B27/005 ,  F04B35/045 ,  F04B39/0005 ,  F04B39/125 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2203/0401 ,  F04B2205/07 ,  F05C2203/02 ,  F05C2203/0808 ,  H02K16/00 ,  H02K33/16

Abstract: A method of controlling a fluid pump. The pump has a plurality of oscillating pistons that travel along a central axis of a piston sleeve. A plurality of pistons is of similar mass within a piston sleeve are provided, and adjacent pistons are positioned to be 180 degrees apart in phase oscillations. An electric coil is provided for each piston, and the position of adjacent pistons is determined. The current to one of the electric coils for a piston is adjusted to maintain the 180 degree difference in phase between oscillations of adjacent pistons.

公开(公告)号：US20170037848A1

公开(公告)日：2017-02-09

申请号：US15162459

申请日：2016-05-23

Applicant: WEATHERFORD TECHNOLOGY HOLDINGS, LLC

Inventor： Clark E. ROBISON ,  Jeffrey J. LEMBCKE

IPC: F04B53/14 ,  E21B43/12 ,  F04B47/02 ,  G01M3/26 ,  F04B19/22

CPC classification number: F04B53/143 ,  E21B43/126 ,  F04B9/10 ,  F04B19/22 ,  F04B23/00 ,  F04B41/00 ,  F04B47/02 ,  F04B47/04 ,  F04B49/065 ,  F04B51/00 ,  F04B53/144 ,  F04B53/18 ,  F04B2201/0201 ,  F04B2205/05 ,  G01M3/2869

Abstract: A system can include an actuator with a piston rod that displaces in response to pressure in the actuator, a seal assembly that seals about the piston rod and includes seal cartridges, each including a dynamic seal sealingly engaging the rod, and each including a static seal sealingly engaging a seal assembly housing, and a port providing communication between a housing exterior and a housing interior between adjacent static seals. A method can include preventing leakage from a well with a seal assembly about a piston rod of a hydraulic actuator, the seal assembly including seal cartridges, each including a dynamic seal that sealingly engages the rod, and each including a static seal that sealingly engages a seal assembly housing, enabling communication through a housing sidewall to a housing interior between adjacent static seals, and reciprocably displacing the rod in response to pressure variations in the actuator.

Abstract translation: 系统可以包括具有响应于致动器中的压力而移位的活塞杆的致动器，围绕活塞杆密封并包括密封盒的密封组件，每个密封件包括密封地接合杆的动态密封件，并且每个包括静态密封件 密封地接合密封组件壳体，以及提供壳体外部和相邻静态密封件之间的壳体内部之间的连通的端口。 一种方法可以包括防止密封组件围绕液压致动器的活塞杆泄漏，密封组件包括密封盒，密封组件包括密封地接合杆的动态密封件，并且每个密封件包括密封地接合 密封组件壳体，使得能够通过壳体侧壁连通到相邻静态密封件之间的壳体内部，并且响应于致动器中的压力变化而使杆可往复移动。

公开(公告)号：US20170037845A1

公开(公告)日：2017-02-09

申请号：US14945163

申请日：2015-11-18

Applicant: General Electric Company

Inventor： Omar Al Assad ,  Rogier Sebastiaan Blom ,  Gary Hughes ,  Justin Edwin Barton ,  Peter Westerkamp

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

CPC classification number: F04B49/20 ,  E21B43/126 ,  E21B47/0007 ,  F04B19/22 ,  F04B47/022 ,  F04B49/065 ,  F04B51/00 ,  F04B53/14 ,  F04B2201/0201 ,  F04B2201/0202 ,  F04B2201/0203 ,  F04B2201/1201 ,  F04B2201/121 ,  F04B2201/1211

Abstract: A controller for operating a rod pumping unit at a pump speed. The controller includes a processor configured to operate a pump piston of the rod pumping unit at a first speed. The processor is further configured to determine a pump fillage level for a pump stroke based on a position signal and a load signal. The processor is further configured to reduce the pump speed to a second speed based on the pump fillage level for the pump stroke.

Abstract translation: 用于以泵速度操作杆式抽油机的控制器。 控制器包括处理器，该处理器被配置为以第一速度操作杆式抽油机的泵活塞。 处理器还被配置为基于位置信号和负载信号来确定泵冲程的泵填充水平。 处理器还被配置为基于泵冲程的泵填充水平将泵速降低到第二速度。

公开(公告)号：US09360006B2

公开(公告)日：2016-06-07

申请号：US13464309

申请日：2012-05-04

Applicant: Philip Herzog ,  Konstantin Choikhet ,  Klaus Witt ,  Herbert Anderer

Inventor： Philip Herzog ,  Konstantin Choikhet ,  Klaus Witt ,  Herbert Anderer

IPC: F04B11/00 ,  F04B49/08 ,  B01D15/14 ,  G01N30/32

CPC classification number: F04B49/08 ,  B01D15/14 ,  F04B11/0058 ,  F04B2201/0201 ,  F04B2205/05 ,  G01N30/32 ,  G01N2030/326 ,  Y10T137/794

Abstract: A method for controlling operation of a pump unit, where the pump unit includes a primary piston pump having a primary piston and a secondary piston pump having a secondary piston. The primary piston pump is fluidically connected with the secondary piston pump. The primary piston pump includes an inlet valve and an outlet valve, and the pump unit operates periodically according to a pump cycle. The method includes determining a fluid pressure of fluid dispensed by the pump unit, and performing a closed loop control of a position of the primary piston in dependence on the fluid pressure of the fluid dispensed by the pump unit during a first time interval of the pump cycle.

Abstract translation: 一种用于控制泵单元的操作的方法，其中所述泵单元包括具有主活塞的主活塞泵和具有次活塞的次级活塞泵。 主活塞泵与次级活塞泵流体连接。 主活塞泵包括入口阀和出口阀，并且泵单元根据泵循环周期性地运行。 该方法包括确定由泵单元分配的流体的流体压力，以及根据在泵的第一时间间隔期间由泵单元分配的流体的流体压力执行主活塞的位置的闭环控制 周期。

公开(公告)号：US20160123318A1

公开(公告)日：2016-05-05

申请号：US14994082

申请日：2016-01-12

Applicant: Schlumberger Technology Corporation

Inventor： Steven Villareal ,  Julian J. Pop ,  Albert Hoefel ,  Kent David Harms

IPC: F04B49/02 ,  F04B49/22 ,  E21B43/12 ,  F04B53/10 ,  F04B53/16 ,  F04B47/00 ,  F04B53/14

CPC classification number: F04B49/022 ,  E21B43/121 ,  E21B44/005 ,  E21B47/06 ,  E21B49/10 ,  F04B19/22 ,  F04B47/00 ,  F04B47/02 ,  F04B49/00 ,  F04B49/22 ,  F04B53/10 ,  F04B53/14 ,  F04B53/16 ,  F04B2201/0201 ,  F04B2201/0603

Abstract: Detecting a failure mode of a fluid flow controller configured to control fluid flow between first and second chambers of a downhole positive displacement pump and a flow line, wherein the positive displacement pump comprises a piston moving in an axial reciprocating motion, and subsequently adjusting operation of the downhole positive displacement pump based on the detected failure mode such that the downhole positive displacement pump piston operates differently in different axial directions.

Abstract translation: 检测被配置为控制井下容积式泵和流动管线的第一和第二室之间的流体流动的流体流动控制器的故障模式，其中所述容积式泵包括以轴向往复运动运动的活塞，并且随后调节 基于检测到的故障模式的井下容积式泵，使得井下正排量泵活塞在不同的轴向上不同地运行。

公开(公告)号：US20160108905A1

公开(公告)日：2016-04-21

申请号：US14518250

申请日：2014-10-20

Applicant: General Electric Company

Inventor： Eric K. Watson ,  Richard Dana Brooke ,  Timothy Neal Johnson ,  Meher Prasadu Kollipara

IPC: F04B51/00 ,  G01R31/34 ,  G01R25/00

CPC classification number: F04B51/00 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2203/0201 ,  F04C18/356 ,  F04C23/02 ,  F04C28/28 ,  F04C29/0085 ,  F04C2270/075 ,  G01R25/00 ,  G01R25/005 ,  G01R31/34

Abstract: Compressors and methods for determining optimal parking positions for compressor pistons are provided. A method includes performing a current value evaluation for an initial time during operation of a motor of the compressor. Performing the current value evaluation includes measuring a motor current value at the time and comparing the motor current value to an existing optimal parking current value. Performing the current value evaluation further includes modifying the existing optimal parking current value to the motor current value when the motor current value exceeds or is equal to the existing optimal parking current value.

Abstract translation: 提供了用于确定压缩机活塞的最佳停车位置的压缩机和方法。 一种方法包括在压缩机的电动机的操作期间执行初始时间的当前值评估。 执行当前值评估包括测量当前的电动机电流值，并将电动机电流值与现有的最佳停车电流值进行比较。 执行当前值评估还包括当电动机电流值超过或等于现有最佳停车电流值时，将现有最佳停车电流值修改为电动机电流值。

公开(公告)号：US09316218B2

公开(公告)日：2016-04-19

申请号：US14455436

申请日：2014-08-08

Applicant: Warren Rupp, Inc.

Inventor： Mark D. McCourt ,  Haihong Zhu ,  Michael Brace Orndorff ,  Jevawn Sebastian Roberts ,  Charles Randolph Abbott

IPC: F04B43/073 ,  F04B43/00 ,  F04B43/02

CPC classification number: F04B43/0736 ,  F04B43/0081 ,  F04B43/02 ,  F04B43/073 ,  F04B2201/0201 ,  F04B2201/0202

Abstract: One or more techniques and/or systems are disclosed for increasing compressed air efficiency in a pump that utilizes an air efficiency device in order to optimize the amount of a compressed air in the pump. The air efficiency device may allow for controlling the operation of the air operated diaphragm pump by reducing the flow of compressed air supplied to the pump as the pump moves between first and second diaphragm positions. A sensor may be used to monitor velocity of the diaphragm assemblies. In turn, full position feedback is possible so that the pump self-adjusts to determine the optimum, or close to optimum, turndown point of the diaphragm assemblies. As such, air savings are achieved by minimizing the amount of required compressed air.

Abstract translation: 公开了一种或多种技术和/或系统，用于提高利用空气效率装置的泵中的压缩空气效率，以优化泵中的压缩空气的量。 空气效率装置可以允许通过当泵在第一和第二隔膜位置之间移动时减小供应给泵的压缩空气的流量来控制气动隔膜泵的操作。 传感器可用于监测隔膜组件的速度。 反过来，可以进行全位置反馈，以便泵自动调节以确定隔膜组件的最佳或接近最佳的调节点。 因此，通过最小化所需压缩空气的量来实现节省空气。

公开(公告)号：US20150086386A1

公开(公告)日：2015-03-26

申请号：US14396359

申请日：2013-04-19

Applicant: Tomasz Moskal ,  Robert Autrey

Inventor： Tomasz Moskal ,  Robert Autrey

IPC: F04B5/00 ,  F04B13/00 ,  F04B49/22 ,  F04B1/12

CPC classification number: F04B5/00 ,  F04B1/12 ,  F04B9/02 ,  F04B13/00 ,  F04B49/12 ,  F04B49/22 ,  F04B2201/0201

Abstract: Disclosed are apparatus adapted to dispense and/or aspirate liquids, such as in a clinical analyzer. In one aspect, a multi-chamber pump apparatus is disclosed that has a pump body containing first and second chambers, a piston having a first piston portion of a first pump area A1 received in the first chamber, and a second piston portion of a second pumping area A2 received in the second chamber, and an actuator coupled to the piston. The first and second chambers can be selectively accessed to improve metering accuracy at dissimilar flow volumes from the chambers. Methods and systems including the multi-chamber pump apparatus are provided, as are other aspects.

Abstract translation: 公开了适于分配和/或吸入液体的设备，例如在临床分析仪中。 一方面，公开了一种具有包含第一和第二室的泵体的多室泵装置，具有容纳在第一室中的第一泵区域A1的第一活塞部分的活塞和第二室的第二活塞部分 泵送区域A2接收在第二室中，以及致动器，其联接到活塞。 可以选择性地访问第一和第二腔室以提高来自腔室的不同流量的计量精度。 与其他方面一样，提供包括多室泵装置的方法和系统。