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公开(公告)号：US20150247510A1
公开(公告)日：2015-09-03
申请号：US14424592
申请日：2013-08-27
申请人： Aker MH AS
发明人： Ketil André Arntzen
CPC分类号： F15B1/04 , F15B1/24 , F15B13/16 , F15B15/2869 , F15B2201/205 , F15B2201/31 , F15B2201/415 , F15B2201/515 , G01S13/88 , H01Q1/225
摘要： A replaceable antenna assembly (1) for use with a piston accumulator (2) configured for supplying fluid to a hydraulic cylinder, the antenna assembly (1) comprises; a hollow manifold (3) for flow of fluid, and an antenna (4) connected into or onto the manifold (3) for emitting and receiving electromagnetic waves, wherein the hollow manifold (3) is connectable to and configured to be in fluid communication with both the piston accumulator (2) at one end and a pressure line (5) at the other end, said pressure line (5) being connectable to an external high pressure gas bank, and wherein the antenna assembly (1) further comprises; at least one first bore (6) for transferring signals to and from the antenna (4), and at least two fluid channels (7) symmetrically displaced around the circumference of the antenna, thereby ensuring that most of or all, fluid flows on the radial outside of the antenna (4) during use.
摘要翻译： 一种可更换的天线组件（1），用于与被配置为向液压缸供应流体的活塞蓄能器（2）一起使用，所述天线组件（1）包括： 用于流体流动的中空歧管（3）和连接到歧管中或上的歧管（3）上用于发射和接收电磁波的天线（4），其中中空歧管（3）可连接并被构造成流体连通 一端的活塞蓄能器（2）和另一端的压力管线（5），所述压力管线（5）可连接到外部高压气体储存器，并且其中天线组件（1）还包括： 用于将信号传送到天线（4）和从天线（4）传送信号的至少一个第一孔（6）和至少两个流体通道（7），其围绕天线的圆周对称地移位，从而确保大部分或全部流体在 在天线（4）的径向外侧使用。
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32.发明申请SERVOVALVE HAVING TWO STAGES AND A PILOT STAGE ADAPTED TO SUCH A SERVOVALVE 有权具有两个阶段的服务器和适应这个服务器的试点阶段公开(公告)号：US20140251447A1
公开(公告)日：2014-09-11
申请号：US14351390
申请日：2012-10-08
申请人： ZODIAC HYDRAULICS
发明人： Guylain Ozzello
IPC分类号： F15B13/043 , F15B13/16
CPC分类号： F15B13/043 , F15B9/06 , F15B9/07 , F15B13/0436 , F15B13/16 , Y10T137/2409
摘要： A hydraulic servovalve having two stages and feedback members in which the movable power distribution member has clamp means for clamping the feedback member, while allowing a clamped portion of the feedback member at least one freedom of movement relative to the movable distribution member.
摘要翻译： 具有两级的液压伺服阀和反馈构件，其中可动配电构件具有用于夹持反馈构件的夹紧装置，同时允许反馈构件的夹紧部分相对于可动分配构件具有至少一个移动自由度。
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公开(公告)号：US20080078448A1
公开(公告)日：2008-04-03
申请号：US11852797
申请日：2007-09-10
IPC分类号： F15B5/00
CPC分类号： F15B13/16 , G05D16/185 , Y10T137/2409 , Y10T137/86477
摘要： A pneumatic controller for controlling a process advantageously reduces fluid consumption by providing a proportional adjustment to a feedback signal. The pneumatic controller comprises a pneumatic control stage, a process pressure detector, and a feedback proportioning device. The feedback proportioning device uses a feedback cantilever component to provide the proportional adjustment of the feedback signal, thereby reducing the fluid consumption of the pneumatic controller.
摘要翻译： 用于控制过程的气动控制器有利地通过向反馈信号提供比例调整来减少流体消耗。 气动控制器包括气动控制级，过程压力检测器和反馈比例装置。 反馈比例装置使用反馈悬臂组件来提供反馈信号的比例调整，从而减少气动控制器的流体消耗。
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公开(公告)号：US20030168113A1
公开(公告)日：2003-09-11
申请号：US10094744
申请日：2002-03-08
发明人： Timothy A. Post
IPC分类号： F15B013/042
CPC分类号： F15B13/0435 , F15B13/0402 , F15B13/043 , F15B13/0433 , F15B13/16 , Y10T137/86606 , Y10T137/86614 , Y10T137/8663
摘要： A proportional hydraulic valve has a primary control spool with a force feedback actuator attached to one end, wherein the control spool meters flow of fluid to a work port. The force feedback actuator includes a piston coupled to the control spool and defining a first control chamber and a second control chamber on opposite sides of the piston. The surface of the piston has a depression with a first tapered section and a second tapered section. The force feedback actuator includes first electrohydraulic valve with a valve element that meters pressurized fluid selectively to the first and second control chambers to move the piston in opposite directions and produce motion of the control spool. A solenoid exerts a first force that on the valve element. A pilot pin engages the piston and the valve element, whereby, movement of the pilot pin on the first and second tapered sections of the piston applies a second force to the valve element. The second force corresponds to the position of the control spool and closes the valve element when the control spool is at a desired location corresponding to magnitude of the first force.
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公开(公告)号：US5704268A
公开(公告)日：1998-01-06
申请号：US507154
申请日：1995-07-26
CPC分类号： F15B13/16
摘要： The apparatus is an oscillator for a showerhead to keep the forming fabric of a papermaking machine clean and open. A hydraulic cylinder is formed with a piston cup assembly dividing the cylinder into first and second fluid chambers. The piston cup assembly is coupled to a magnet and a driveshaft, the driveshaft being coupled, in turn, to the showerhead to be oscillated. A four-way valve is used to direct fluid from a pressurized external source alternately into said first and second fluid chambers thereby causing reciprocation of the driveshaft. The position of the magnet, and hence the driveshaft and showerhead, is monitored by a transducer which sends position and rate signals to a microprocessor-based controller. The microprocessor-based controller sends a signal to the four-way valve to direct which of said first and second fluid chambers receives fluid from the pressurized source in order to achieve the desired parameters of reciprocation. Additionally, the microprocessor-based controller provides an alarm signal should the driveshaft rate drop below a preset value.
摘要翻译： 该装置是用于使造纸机的成形织物保持清洁和打开的用于喷头的振荡器。 液压缸形成有将气缸分成第一和第二流体室的活塞杯组件。 活塞杯组件联接到磁体和驱动轴，驱动轴又连接到喷头以进行摆动。 四通阀用于将来自加压外部源的流体交替地引导到所述第一和第二流体室中，从而导致驱动轴的往复运动。 磁体的位置以及驱动轴和喷头的位置由向基于微处理器的控制器发送位置和速率信号的换能器监视。 基于微处理器的控制器向四通阀发送信号以引导所述第一和第二流体室中的哪一个从加压源接收流体，以便实现所需的往复运动参数。 此外，如果驱动轴速率降到预设值以下，则基于微处理器的控制器提供报警信号。
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公开(公告)号：US5345856A
公开(公告)日：1994-09-13
申请号：US25173
申请日：1993-03-02
摘要： A valve positioner has a pneumatic transducer responsive to a signal pressure for displacing a spool valve away from a neutral position to effect actuation of an actuator output shaft and further includes a gain adjustment apparatus. The pneumatic transducer includes a balance beam being operably connected at one end to the spool valve and at the other end to a hinge spring. A clamp mechanism is attached to the hinge spring and is slidably adjustable along the length of the hinge spring to vary the spring characteristics. The hinge spring tapers in thickness such that the spring increases in thickness in a direction from a first end of the spring towards the balance beam. A window or cut-out is also provided in the hinge spring to further assist in varying the spring characteristics as the clamp mechanism is moved along the hinge spring, and provide a wide range of gain adjustment over the single spring.
摘要翻译： 阀定位器具有响应信号压力的气动传感器，用于将滑阀从中性位置移开，以实现致动器输出轴的致动，并且还包括增益调节装置。 气动换能器包括平衡梁，该平衡梁在一端可操作地连接到滑阀上，另一端可操作地连接到铰链弹簧。 夹紧机构附接到铰链弹簧并且可沿着铰链弹簧的长度可滑动地调节以改变弹簧特性。 铰链弹簧的厚度变薄，使得弹簧在从弹簧的第一端朝向平衡梁的方向上增加厚度。 铰链弹簧中还设置有窗口或切口，以进一步帮助改变弹簧特性，因为夹紧机构沿着铰链弹簧移动，并且在单个弹簧上提供宽范围的增益调节。
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37.发明授权Pressurized fluid actuation system for amplifying operator input force in a surgical instrument 失效加压流体致动系统，用于放大手术器械中的操作者输入力
公开(公告)号：US5339723A
公开(公告)日：1994-08-23
申请号：US129649
申请日：1993-09-30
申请人： Thomas W. Huitema
发明人： Thomas W. Huitema
IPC分类号： A61B17/00 , A61B17/128 , A61B17/28 , F15B13/16
CPC分类号： A61B17/1285 , F15B13/16 , A61B2017/00539 , A61B2017/2937
摘要： A pressurized fluid actuation system as provided for a surgical instrument. The system includes a double-acting fluid pressure actuator with an extension chamber and a retraction chamber separated by a piston for engaging a component of the instrument. An operating lever is pivotally mounted to the piston. The operating lever is also pivotally connected to a servo valve that has a valve spool. The valve is connected to a source of pressurized fluid and has first and second return ports for venting the fluid. The actuator extension and retraction chambers are connected with the valve for each communicating with the pressurized fluid source and with one of the return ports in response to the position of the valve spool. The system includes a feedback line communicating between the extension chamber and the valve to apply a force to the valve spool in one direction when the extension chamber is pressurized. The system also includes a sensing line communicating between the retraction chamber and the valve to apply a force to the valve spool in the opposite direction when the retraction chamber is pressurized.
摘要翻译： 一种为手术器械提供的加压流体致动系统。 该系统包括具有延伸室的双作用流体压力致动器和由用于接合仪器的部件的活塞分开的回缩室。 操作杆可枢转地安装在活塞上。 操作杆也枢转地连接到具有阀芯的伺服阀。 阀连接到加压流体源，并具有用于排出流体的第一和第二返回端口。 致动器延伸和收回室与阀连接，每个与加压流体源连通，并且响应于阀芯的位置而与其中一个返回端口连接。 该系统包括在延伸室和阀之间连通的反馈管线，以在延伸室被加压时在一个方向上向阀芯施加力。 该系统还包括在收缩室和阀之间连通的感测线，以在收缩室被加压时沿相反方向向阀芯施加力。
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公开(公告)号：US5179887A
公开(公告)日：1993-01-19
申请号：US679296
申请日：1991-04-02
IPC分类号： F15B13/16
CPC分类号： F15B13/16
摘要： A control force input system for a balance beam pneumatic valve positioner which does not allow the controlled apparatus to make a full travel motion when the overall control signal is removed. The control force is transmitted to the balance beam or other force summing bar using a linear solenoid coupled to a control spring coupled to the balance beam. When the motive power control signal is removed from the linear solenoid, the balance beam establishes an equilibrium position based on the existing position of the linear solenoid. The solenoid shaft extends into a captive cylinder. A piston connected to the solenoid shaft is located in the captive cylinder and forms two chambers in the cylinder. A solenoid valve connects a port in each chamber. When the solenoid valve is activated, the piston is free to travel. When the solenoid valve is deactivated, as when the control signal is removed, the piston is held in position, locking the solenoid shaft in position. A variation for use with a current to pressure transducer is detailed.
摘要翻译： 一种用于平衡杆气动阀定位器的控制力输入系统，当整个控制信号被去除时，该控制力输入系统不允许受控设备进行全行程运动。 使用耦合到耦合到平衡梁的控制弹簧的线性螺线管将控制力传递到平衡梁或其他力求和杆。 当从线性螺线管移除动力控制信号时，平衡梁基于线性螺线管的现有位置建立平衡位置。 螺线管轴延伸到一个独立的气缸中。 连接到螺线管轴的活塞位于固定缸中，并在气缸中形成两个腔室。 电磁阀连接每个室中的一个端口。 当电磁阀启动时，活塞可自由行进。 当电磁阀停用时，当控制信号被移除时，活塞被保持就位，将电磁轴锁定在适当的位置。 详细介绍了与电流传感器一起使用的变体。
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公开(公告)号：US4660589A
公开(公告)日：1987-04-28
申请号：US835163
申请日：1986-03-03
CPC分类号： F15B13/16 , Y10T137/2322
摘要： An optical feedback loop system used in conjunction with an optical hydraulic servovalve. The system uses light energy from a single fiber optic bundle for expanding a gas in a pair of bellows. When one of the bellows is expanded a jet pipe connected to a servo fluid inlet is moved from a first fluid outlet to a second fluid outlet.
摘要翻译： 光学反馈回路系统与光学液压伺服阀结合使用。 该系统使用来自单个光纤束的光能量来膨胀一对波纹管中的气体。 当波纹管中的一个膨胀时，连接到伺服流体入口的喷射管从第一流体出口移动到第二流体出口。
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40.发明授权
公开(公告)号：US4449442A
公开(公告)日：1984-05-22
申请号：US337193
申请日：1982-01-05
摘要： This invention relates to a motor control unit and a feedback arrangement to minimize the effects of backlash in a rotary output system. The system includes a source of energy. The motor control has a directional control element moveable from a null position. The motor control unit is coupled to the source of energy and to a motor which in turn is coupled to the rotary output and to a second input of a differential harmonic drive that has first and second inputs and an output. The first input of the differential harmonic drive is coupled to a rotational command input unit and the differential harmonic drive output is drivingly coupled to the moveable direction control element. In response to a given rotational command input when the second input is in an initial static position, whereupon the motor is coupled to the source of energy through the motor control unit, the rotary output is driven a precise number of revolutions dependent upon the given rotational command input. The second input is simultaneously driven a given number of revolutions in a direction to provide feedback, such that the differential harmonic drive output moves to return the moveable element to the null condition, and the system is then in a condition to respond to additional rotational command input.
摘要翻译： 本发明涉及电机控制单元和反馈装置，以最小化旋转输出系统中的间隙的影响。 该系统包括一个能源。 电动机控制具有可从零位置移动的方向控制元件。 电动机控制单元耦合到能量源和电动机，电动机又连接到旋转输出端并连接到具有第一和第二输入端和输出端的差动谐波驱动器的第二输入端。 差分谐波驱动的第一输入耦合到旋转指令输入单元，并且差分谐波驱动输出驱动耦合到可移动方向控制元件。 当第二输入处于初始静态位置时，响应于给定的旋转命令输入，由此马达通过马达控制单元耦合到能量源，旋转输出被驱动取决于给定旋转的精确转数 命令输入。 第二输入同时沿一个方向驱动给定的转数以提供反馈，使得差分谐波驱动输出移动以将可移动元件返回到空状态，并且系统然后处于响应附加旋转指令 输入。
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