公开(公告)号：US20200073353A1

公开(公告)日：2020-03-05

申请号：US16377861

申请日：2019-04-08

申请人： U.S. Well Services, Inc.

发明人： Jared Oehring ,  Brandon N. Hinderliter ,  Arthur Baron

IPC分类号： G05B19/042 ,  E21B43/267 ,  G05B19/46

摘要： A system and method that remotely monitors and controls proppant usage in a fracturing operation. The system and method allow operators to wirelessly monitor and control proppant storage units from inside a datavan through sensors and control mechanisms that interface with fracturing software to schedule the flow of the proppant. A sensor monitors the weight, container level, or volume of the proppant being used to keep the induced hydraulic fracture open. A serial to Ethernet converter converts this information and sends it wirelessly to a datavan. A user at the datavan controls the proppant usage through a display in the datavan of the storage units with the appropriate weight. The container monitoring software links with the fracturing software, providing real-time information about proppant usage so that the user can properly schedule proppant flow to the well through valves, conveyor belts, and other control mechanisms.

公开(公告)号：US10302221B2

公开(公告)日：2019-05-28

申请号：US15440941

申请日：2017-02-23

申请人： Imtex Controls Limited

发明人： Paul Turner

IPC分类号： F16K37/00 ,  F15B19/00 ,  G05B19/042 ,  G05B23/02 ,  F16K17/10 ,  G05B9/02 ,  G05B19/46 ,  F15B20/00

摘要： Many operators choose not to utilise partial-stroke testing arrangements even when the equipment required for it to be performed is available, due to a perceived risk of over-travel and/or spurious trip. To alleviate this, we describe a safety valve system comprising a valve operable to move between an operating state and a safe state, a valve actuator operatively connected to the valve to control its state, and including a bias toward the safe state, a pair of drive members powered by a pressure media, each acting against the bias to urge the valve toward the operating state, a first control valve arranged to selectively convey pressure media to both drive members and to withdraw supply on receipt of a safety trigger, and a second control valve arranged to selectively convey pressure media to one drive member only of the pair and to withdraw supply on receipt of a test signal. In this way, a partial stroke test is possible via the second control valve, but the other drive member of the pair will remain active thus acting as a buffer that prevents excessive movement of the valve.

公开(公告)号：US10241481B2

公开(公告)日：2019-03-26

申请号：US15462365

申请日：2017-03-17

申请人： Fisher Controls International LLC

发明人： Kurtis Jensen ,  Roger Anders

IPC分类号： F16K31/00 ,  G05B15/02 ,  G05B19/43 ,  G05B19/44 ,  G05B19/46 ,  G05B19/042

摘要： Methods and apparatus for controlling multiple valves as a single valve based on a coordinated control signal are disclosed. In some examples, an apparatus includes a valve controller to be operatively coupled to a first valve and a second valve. In some examples, the second valve is to be operatively positioned in series with the first valve. In some examples, the valve controller is to control a position of the first valve and a position of the second valve based on a coordinated control signal to be received by the valve controller.

公开(公告)号：US09080683B2

公开(公告)日：2015-07-14

申请号：US13029939

申请日：2011-02-17

申请人： Perry K. Carter ,  Riyaz M. Ali

发明人： Perry K. Carter ,  Riyaz M. Ali

IPC分类号： H04W24/00 ,  H04W4/00 ,  G06F15/00 ,  F16K37/00 ,  G05B19/042 ,  G05B19/46 ,  H04L29/08 ,  H04W76/02

CPC分类号： F16K37/0075 ,  G05B19/0428 ,  G05B19/46 ,  H04L67/12 ,  H04W76/10

摘要： A method for conducting a partial stroke test of an emergency shutdown valve includes receiving a request to initiate the partial stroke test from a user interface or another source, establishing a direct or an indirect wireless communication link with the emergency shutdown valve, and generating one or more commands of a digital industrial automation protocol to be transmitted to the emergency shutdown valve via the wireless communication link, so that a partial stroke test of the emergency shutdown valve is initiated in response to these commands.

摘要翻译： 用于执行紧急关闭阀的部分行程测试的方法包括从用户界面或另一个源接收到启动部分行程测试的请求，建立与紧急关闭阀的直接或间接无线通信链路，以及生成一个或 数字工业自动化协议的更多命令将经由无线通信链路传送到紧急关闭阀，使得响应于这些命令启动紧急关闭阀的部分行程测试。

公开(公告)号：US20130274925A1

公开(公告)日：2013-10-17

申请号：US13449278

申请日：2012-04-17

申请人： Richard H. Oates, JR. ,  Lukas M. Munsell ,  Terry W. Stone

发明人： Richard H. Oates, JR. ,  Lukas M. Munsell ,  Terry W. Stone

IPC分类号： G05B19/46

CPC分类号： E02F3/96 ,  E02F9/2228 ,  E02F9/267

摘要： In general, systems and methods for controlling work machine implements are described. In one embodiment, a system for controlling a hydraulically-powered third-party work machine implement includes a microcontroller-based conversion module capable of transforming implement control signals from their native format (e.g., PWM) to a signal format required by the implement to function properly (e.g., digital). A hydraulic flow activation signal can be simultaneously generated and transmitted to the implement so that hydraulic flow occurs only when control signals are received and the implement is caused to be in motion or otherwise activated.

摘要翻译： 一般来说，描述了用于控制工作机器的系统和方法。 在一个实施例中，一种用于控制液压动力的第三方作业机器的系统包括一个基于微控制器的转换模块，该转换模块能够将其原始格式（例如PWM）的实施控制信号转换为实现功能所需的信号格式 正确（例如，数字）。 可以同时产生液压流动启动信号并将其传送到工具，使得只有在接收到控制信号并使工具运动或以其他方式激活时才发生液压流动。

公开(公告)号：US6018685A

公开(公告)日：2000-01-25

申请号：US915733

申请日：1997-08-21

申请人： Jun Fujita ,  Tomoo Hayashi ,  Masaru Suzuki ,  Masahiro Akiyama

发明人： Jun Fujita ,  Tomoo Hayashi ,  Masaru Suzuki ,  Masahiro Akiyama

IPC分类号： G05B19/18 ,  G05B19/404 ,  G05D3/00 ,  G05D3/12 ,  G05B19/19 ,  G05B19/423 ,  G05B19/46

CPC分类号： G05B19/404 ,  G05B2219/41309 ,  G05B2219/49169 ,  G05B2219/49172 ,  G05B2219/49186

摘要： A position control system, capable of correcting the positional deviation between mechanically related control axes. The position control system comprises a structural body having a Y-shaft supported by a fixed member so that two end portions can move in a vertical direction and a main shaft provided in this shaft so that it can move in a horizontal direction, servo motors for driving the two end portions, a servo motor for driving the main shaft, and a control device for performing the servo control of the servo motors. The control device adjusts the positions of the two end portions of the Y-shaft in accordance with the position of the main shaft with respect to the Y-shaft at the position control to correct the positional deviation from the target position of the main shaft in the vertical direction.

摘要翻译： 一种能够校正机械相关控制轴之间的位置偏差的位置控制系统。 位置控制系统包括具有由固定构件支撑的Y轴的结构体，使得两个端部能够在垂直方向上移动，并且设置在该轴中的主轴使得其能够在水平方向上移动，伺服电动机用于 驱动两个端部，用于驱动主轴的伺服电动机以及用于执行伺服电动机的伺服控制的控制装置。 控制装置根据主轴相对于位置控制中的Y轴的位置来调节Y轴的两个端部的位置，以校正与主轴的目标位置的位置偏差 垂直方向。

公开(公告)号：US5261451A

公开(公告)日：1993-11-16

申请号：US924433

申请日：1992-07-31

申请人： William R. Spencer

发明人： William R. Spencer

IPC分类号： F15B13/07 ,  G05B19/44 ,  G05B19/46 ,  F16K37/00

CPC分类号： G05B19/44 ,  F15B13/07 ,  G05B19/46 ,  Y10T137/8158 ,  Y10T137/8242 ,  Y10T137/86501 ,  Y10T137/86638

摘要： A pneumatic multiplexer including a stator portion adapted to receive multiple inputs. The stator including a plurality of channels therethrough adapted to channel compressible fluid from the inputs to a stator face. The stator portion including arc grooves therein at each of the stator output holes and pressure relief grooves between the arc grooves.

摘要翻译： 一种气动多路复用器，包括适于接收多个输入的定子部分。 定子包括穿过其的多个通道，其适于将可压缩流体从输入引导到定子面。 每个定子输出孔中的定子部分包括弧槽，弧形槽之间的压力释放槽。

公开(公告)号：US5081903A

公开(公告)日：1992-01-21

申请号：US462739

申请日：1990-01-09

申请人： John W. Wardle ,  Dale W. Sievert ,  James L. Leeson, deceased

发明人： John W. Wardle ,  Dale W. Sievert ,  James L. Leeson, deceased

IPC分类号： F15B13/044 ,  F15B13/07 ,  G05B19/414 ,  G05B19/46

CPC分类号： F15B13/07 ,  G05B19/414 ,  G05B19/46 ,  Y10T137/86911 ,  Y10T137/87201 ,  Y10T137/87209

摘要： A multiplexed hydraulic control system having a plurality of hydraulic channels for individually controlling the positions of a plurality of actuators in the respective channels in accordance with a corresponding plurality of electrical control signals. The system includes a relatively small multiplexing valve or valve array which has a common input and a plurality of individually selected outputs. The multiplexing valve has a control input which is responsive to a source of binary selector signals, such selector signals being used to directly address any particular channel connected to the multiplexer. The system also includes means for modulating a hydraulic signal in accordance with selected ones of the plurality of electrical control signals, and applying the modulated hydraulic signal to the multiplexer common input. Control means then coordinates the addressing of the multiplexer with the modulating of the hydraulic signal to assure that hydraulic signals of the appropriate magnitude are coupled to each addressed channel, thereby to control all of the channels in accordance with the control signals for each channel.

公开(公告)号：US5048394A

公开(公告)日：1991-09-17

申请号：US387177

申请日：1989-07-28

申请人： Daniel J. McLevige ,  Donald E. Wernberg

发明人： Daniel J. McLevige ,  Donald E. Wernberg

IPC分类号： B64D31/00 ,  F02C9/38 ,  F02D11/06 ,  F02D35/00 ,  F15B9/17 ,  G05B19/414 ,  G05B19/46

CPC分类号： G05B19/46 ,  G05B19/4144 ,  Y10T137/86501

摘要： A multiplexed hydraulic control system in which high force margins for the multiplexer are achieved by employing hydraulic oscillators as the multiplexer driving means. The multiplexer is typically in the form of a hydraulic cylinder having an input port and a plurality of output ports, with an operator in the cylinder for individually connecting the input port to the output ports. The hydraulic oscillator is mechanically coupled to the multiplexer operator, and oscillation of the former causes oscillation of the latter to sequentially connect the input to each of the outputs. Various means are taught for initiating reversal of the oscillator and controlling the oscillation speed.

公开(公告)号：US4984505A

公开(公告)日：1991-01-15

申请号：US306842

申请日：1989-02-01

申请人： Plato J. Leeson ,  John W. Wardle

发明人： Plato J. Leeson ,  John W. Wardle

IPC分类号： F02C9/00 ,  F02C9/48 ,  F15B9/17 ,  F15B13/07 ,  G05B19/414 ,  G05B19/46

CPC分类号： G05B19/46 ,  F15B13/07 ,  G05B19/4144 ,  Y10T137/87137 ,  Y10T137/87217

摘要： A time division multiplexed (TDM) hydraulic control system having a plurality of channels, each channel having a servo actuator. Electrical demand signals are arranged in TDM sequence and applied to a single multiplexed pilot valve so that the pilot valve produces a plurality of hydraulic signals. Commutator means are associated with the pilot valve for distributing the hydraulic signals to the associated channels. In order to achieve useful output flow rates in the channels, each channel includes a second stage valve which integrates the hydraulic signals for its channel to produce an output flow rate which is a function of the integrated signal. The flow rates are continuously produced (as compared to the multiplexed output signals) and are coupled to actuators in the channels for controllably adjusting the position thereof. Feedback means associated with the actuators includes rate feedback for stabilizing the multiplexed control loops.