公开(公告)号：US11712371B2

公开(公告)日：2023-08-01

申请号：US16826858

申请日：2020-03-23

Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)

Inventor： Stephane Bigler ,  Nikolaos Stergiopulos

IPC: A61F9/00 ,  A61F9/007 ,  F04B43/04 ,  F04B43/12 ,  F04B43/09 ,  F04B43/14 ,  A61M27/00

CPC classification number: A61F9/00781 ,  A61F9/00 ,  A61F9/0008 ,  A61F9/00736 ,  F04B43/04 ,  F04B43/09 ,  F04B43/1253 ,  F04B43/14 ,  A61M27/002 ,  A61M2210/0612 ,  F04B2201/1208

Abstract: An ocular drainage system is provided for treating diseases that produce elevated intraocular pressures, such as glaucoma, wherein the system includes an implantable device and an external control unit, the implantable device includes a non-invasively adjustable valve featuring at least one deformable tube and a disk rotatably mounted within a housing, such that rotation of the disk using the external control unit causes the disk to apply a selected amount of compression to the deformable tube, thereby adjusting the fluidic resistance of the deformable tube and regulating the intraocular pressure.

公开(公告)号：US20180230786A1

公开(公告)日：2018-08-16

申请号：US15745644

申请日：2015-09-04

Applicant: Halliburton Energy Services, Inc.

Inventor： Joseph A. Beisel

IPC: E21B43/12 ,  F04B49/06

CPC classification number: E21B43/12 ,  F04B47/02 ,  F04B49/065 ,  F04B2201/0201 ,  F04B2201/0603 ,  F04B2201/1208 ,  G01B7/003

Abstract: A monitoring system may include a position sensor, strain gauges, and a computing device for monitoring valves in a pressure pump having multiple chambers to determine critical valve limits for the valves using strain measurements for each charmber. The strain gauges may determine strain in each chamber of the pressure pump. The position sensor may determine the position of a crankshaft mechanically coupled to a plunger in each chamber. The computing device may receive signals generated by the strain gauges and the position sensor related to the strain in each chamber and the position of the crankshaft, respectively, and may process the signals to determine delays in the actuation of the valves for determining critical valve limits.

公开(公告)号：US20180223644A1

公开(公告)日：2018-08-09

申请号：US15749651

申请日：2015-09-29

Applicant: Halliburton Energy Services, Inc.

Inventor： Joseph A. Beisel

IPC: E21B47/00 ,  F04B47/04 ,  F04B49/06 ,  F04B49/22

CPC classification number: E21B47/0008 ,  F04B1/053 ,  F04B9/045 ,  F04B47/02 ,  F04B47/04 ,  F04B49/00 ,  F04B49/065 ,  F04B49/22 ,  F04B2201/0201 ,  F04B2201/0601 ,  F04B2201/1208 ,  F04B2205/03

Abstract: A monitoring system may include at least a strain gauge and a computing device for determining a bulk modulus of a fluid system of a pressure pump using strain measurements. The strain gauge may determine strain in a chamber of the pressure pump. The computing device may receive a strain signal generated by the strain gauge and may correlate the strain signal to pressure to determine a change in pressure during a period in which fluid is isolated in the chamber. The computing device may use the change in pressure during this period to determine a bulk modulus of the fluid system.

公开(公告)号：US09797395B2

公开(公告)日：2017-10-24

申请号：US14857148

申请日：2015-09-17

Applicant: Schlumberger Technology Corporation

Inventor： Carlos Urdaneta ,  Hao Lam ,  Rajesh Luharuka

IPC: F04B51/00 ,  F04B53/14 ,  F04B53/16 ,  F04B17/06 ,  F04B1/00 ,  F04B9/04 ,  F04B17/03 ,  F04B47/00 ,  F04B49/06

CPC classification number: F04B51/00 ,  F04B1/00 ,  F04B9/045 ,  F04B17/03 ,  F04B17/06 ,  F04B47/00 ,  F04B49/065 ,  F04B53/14 ,  F04B53/16 ,  F04B2201/1208 ,  F04B2205/05

Abstract: Apparatus and methods for detecting pump defects in a pumping system comprising multiple pumps. Each pump includes a pump fluid outlet fluidly connected with the pump fluid outlet of the other pumps. Pump defects are detected by generating information related to fluid pressure fluctuations at each pump fluid outlet and determining harmonic frequencies from the information related to fluid pressure fluctuations for each of the plurality of pumps. The amplitude of the harmonic frequencies is indicative of a defective one of the plurality of pumps.

公开(公告)号：US09239049B2

公开(公告)日：2016-01-19

申请号：US13809349

申请日：2011-07-15

Applicant: Scott Patrick Jarnagin ,  Gordon W. Lam ,  Shannon Eubanks

Inventor： Scott Patrick Jarnagin ,  Gordon W. Lam ,  Shannon Eubanks

IPC: F04B43/12 ,  F04B53/22 ,  F04B39/14

CPC classification number: F04B43/12 ,  F04B39/14 ,  F04B43/1284 ,  F04B53/22 ,  F04B2201/1208

Abstract: Peristaltic pump assemblies in which the closing and opening of a pivoting or sliding door is coordinated with movement of the occlusion bed toward and away from the rotor assembly to engage and disengage tubing within the occlusion pathway are disclosed. Linkage mechanisms provided by the interaction of cam surfaces with rollers, as well as bar linkage mechanisms, are disclosed. The linkage mechanism, in addition to providing precise displacement of the occlusion bed, may also provide an over-center feature that enhances safety and pump operation when the door is in a closed position. Latching mechanisms and sensors may be incorporated. Adaptive components such as tubing cassettes routing aspiration and/or infusion tubing in a predetermined configuration to mate with occlusion pathways in aspiration and/or infusion pump assemblies provided in various types of medical devices and control consoles are also provided.

Abstract translation: 公开了一种蠕动泵组件，其中枢转或滑动门的关闭和打开与闭塞床朝向和远离转子组件的移动配合，以使啮合和脱离闭塞通路内的管道。 公开了通过凸轮表面与辊的相互作用提供的连接机构以及连杆机构。 除了提供堵塞床的精确位移之外，连杆机构还可以提供过中心特征，其在门处于关闭位置时增强安全性和泵操作。 可以并入锁存机构和传感器。 还提供了自适应组件，例如以预定配置布置抽吸和/或输注管的管道盒，以与在各种类型的医疗装置和控制台中提供的抽吸和/或输注泵组件中的闭塞通道配合。

公开(公告)号：US20150144655A1

公开(公告)日：2015-05-28

申请号：US14404867

申请日：2013-03-06

Applicant: Zhengzhou Sanhua Technology & Industry Co., Ltd

Inventor： Huan Li

IPC: F04B1/14 ,  B01F3/08 ,  B01F15/00 ,  F04B1/29 ,  B01F15/02

CPC classification number: F04B1/148 ,  B01F3/08 ,  B01F13/1058 ,  B01F15/00123 ,  B01F15/0237 ,  B01F2215/005 ,  F04B1/124 ,  F04B1/146 ,  F04B1/29 ,  F04B9/042 ,  F04B13/00 ,  F04B49/035 ,  F04B2201/12041 ,  F04B2201/1208

Abstract: Disclosed is a supplying device of fixed colorants volume for a colorant dispenser. The supply device includes: a colorant source; a cylinder body having multiple piston cylinders arranged around a circumferential direction thereof; a swashplate having an oblique surface and arranged substantially coaxially with the cylinder body; multiple piston mechanisms, where each piston mechanism includes a piston rod and a piston connected to the piston rod, the piston rod has a rolling abutment structure abutting against the oblique surface, and the piston is constructed to be capable of making a stroke movement in the corresponding piston cylinder by means of rotation of the swashplate; an actuator for actuating the swashplate; a controller operatively connected to the actuator to control the amount of rotation of the swashplate; and an outlet for dispensing a colorant. Preferably, the supply device further includes an axial reset mechanism and a circumferential reset mechanism.

Abstract translation: 公开了一种用于着色剂分配器的固定着色剂体积的供应装置。 供应装置包括：着色剂源; 具有围绕其圆周方向布置的多个活塞气缸的缸体; 具有倾斜表面并且与所述缸体基本同轴地布置的斜盘; 多个活塞机构，其中每个活塞机构包括活塞杆和连接到活塞杆的活塞，活塞杆具有抵靠倾斜表面的滚动邻接结构，并且活塞构造成能够在 相应的活塞气缸通过旋转斜盘旋转; 用于致动斜盘的致动器; 控制器，可操作地连接到致动器以控制斜盘的旋转量; 和用于分配着色剂的出口。 优选地，供给装置还包括轴向复位机构和周向复位机构。

公开(公告)号：US20130251540A1

公开(公告)日：2013-09-26

申请号：US13894976

申请日：2013-05-15

Applicant: KSB Aktiengesellschaft

Inventor： Thomas PAULUS ,  Jochen SCHAAB

IPC: F04B49/20

CPC classification number: F04B49/065 ,  F04B49/12 ,  F04B2201/1202 ,  F04B2201/1208 ,  F04B2203/0207 ,  F04B2203/0209 ,  F04D15/0066 ,  F04D15/0088

Abstract: A displacement pump arrangement, method for operating the displacement pump arrangement and a control device for controlling the displacement pump arrangement provide rotational-speed-variable control of an expeller pump unit for feeding a fluid. The arrangement includes an expeller pump and a drive, the drive being composed of an electric drive motor and a frequency converter, and a control device. The control device controls a state value such as a final pressure of the expeller pump a setpoint value. The control device detects state values of a control variable are supplied by the drive, in particular relating to the position, rotational speed and torque of the drive motor, and adjusts the displacement pump output to reach the setpoint value without using sensors.

Abstract translation: 排量泵装置，用于操作排量泵装置的方法和用于控制排量泵装置的控制装置提供用于供给流体的排出泵单元的旋转速度可变控制。 该装置包括推进器泵和驱动器，该驱动器由电驱动马达和变频器组成，以及控制装置。 控制装置控制诸如推进器泵的最终压力的状态值设定值。 控制装置检测由驱动器提供的控制变量的状态值，特别是与驱动电动机的位置，转速和转矩相关，并且调节位移泵输出以达到设定点值而不使用传感器。

公开(公告)号：US20090041588A1

公开(公告)日：2009-02-12

申请号：US11835523

申请日：2007-08-08

Applicant: Timothy Hunter ,  Stanley Stephenson

Inventor： Timothy Hunter ,  Stanley Stephenson

IPC: F04B49/00

CPC classification number: F04B49/035 ,  F04B7/0076 ,  F04B7/0266 ,  F04B49/243 ,  F04B2201/0201 ,  F04B2201/1208

Abstract: An active valve system may be used to improve operation of the suction valve(s) of a positive displacement pump. As appropriate, the active valve system may apply a force to the suction valve directed to open and/or close the suction valve. By quickening the opening and/or closing of the suction valve, the pump may run at a higher speed and operate with less wear. Additionally, the active valve system may allow all suction valves of a pump to be held open for various purposes.

Abstract translation: 可以使用主动阀系统来改善正排量泵的吸入阀的操作。 适当地，主动阀系统可以向抽吸阀施加力以打开和/或关闭抽吸阀。 通过加快吸入阀的打开和/或关闭，泵可以以更高的速度运行并以更少的磨损运行。 此外，主动阀系统可以允许泵的所有吸入阀为了各种目的而保持打开。

公开(公告)号：US20070207041A1

公开(公告)日：2007-09-06

申请号：US11365228

申请日：2006-03-01

Applicant: Shawn Gao ,  David Williams

Inventor： Shawn Gao ,  David Williams

IPC: F04B43/12

CPC classification number: F04B43/14 ,  A61M1/0072 ,  A61M2205/12 ,  F04B43/0081 ,  F04B2201/1208

Abstract: A method for operating a peristaltic pump having a molded flow channel contained on an elastomeric sheet that is bonded or mechanically attached to a rigid substrate. The pump head rollers are mounted radially from the axis of rotation of the pump motor and compress the elastomeric flow channels against the rigid substrate. During reflux, the pump head is positioned so that at least one of the rollers compresses the elastomeric flow channel at the input end of the peristaltic pump. Such an operation minimizes the amount of the elastomeric sheet that is exposed to high transient pressures.

Abstract translation: 一种用于操作蠕动泵的方法，其具有包含在弹性体片材上的模制流动通道，所述弹性体片材结合或机械地附接到刚性基底。 泵头辊从泵马达的旋转轴线径向安装，并将弹性体流动通道压靠在刚性基底上。 在回流期间，泵头被定位成使得至少一个辊压缩在蠕动泵的输入端处的弹性体流动通道。 这样的操作使暴露于高瞬态压力的弹性体片材的量最小化。

公开(公告)号：US20070154325A1

公开(公告)日：2007-07-05

申请号：US11324668

申请日：2006-01-03

Applicant: John Grant ,  Olga Malakhova ,  Roger Hala ,  Brian Howard

Inventor： John Grant ,  Olga Malakhova ,  Roger Hala ,  Brian Howard

IPC: F04B49/00

CPC classification number: F04B51/00 ,  F04B2201/0603 ,  F04B2201/1208 ,  G01M15/06

Abstract: A method for monitoring a condition of at least one valve positioned with respect to at least one of a first chamber and a second chamber of a reciprocating compressor is provided. The method includes establishing a compressor operation cycle including a valve opening event, a valve closing event and/or a rod reversal event. A crank angle is determined at each of the valve opening event, the valve closing event and/or the rod reversal event during the compressor operation cycle using at least one of a static pressure input and a machine speed input. The method further include diagnosing a valve leak condition during the compressor operation cycle at the valve closing event, wherein the at least one valve is closed.

Abstract translation: 提供了一种用于监测相对于往复式压缩机的第一室和第二室中的至少一个定位的至少一个阀的状态的方法。 该方法包括建立包括阀打开事件，闭阀事件和/或杆反转事件的压缩机操作循环。 在压缩机运行循环期间，使用静压输入和机器速度输入中的至少一个，在阀打开事件，闭阀事件和/或杆反转事件中的每一个确定曲柄角。 所述方法还包括在所述关闭阀门事件期间在压缩机运行循环期间诊断阀泄漏状况，其中所述至少一个阀关闭。