公开(公告)号：US06186172B1

公开(公告)日：2001-02-13

申请号：US09355890

申请日：1999-08-06

Applicant: Nobumi Yoshida

Inventor： Nobumi Yoshida

IPC: F15B13043

CPC classification number: F15B13/0402 ,  F15B11/042 ,  F15B11/044 ,  F15B13/0433 ,  F15B2211/2053 ,  F15B2211/20576 ,  F15B2211/30525 ,  F15B2211/31582 ,  F15B2211/329 ,  F15B2211/351 ,  F15B2211/353 ,  F15B2211/365 ,  F15B2211/6355 ,  F15B2211/7053 ,  F15B2211/75 ,  Y10T137/87201 ,  Y10T137/87209 ,  Y10T137/87241

Abstract: A directional control valve system is provided in conjunction with a hydraulic actuator, using a meter-in flow control valve that is simple in structure to permit pressure fluid to be fed into a first and a second chamber of the hydraulic actuator. The directional control valve system includes a meter-in flow control valve 1 for establishing and blocking fluid communication of a pump port with an outlet port 12, a first and a second load checking valve 2 and 3 that is in fluid communication with the outlet port 12, and a meter-out flow control valve 4 for establishing fluid communication of one of a first and a second actuator port 72 and 74 at an output side of the first and second load checking valves 2 and 3 with a tank port 71, and has an arrangement that permits the first and second load checking valves 2 and 3 to be held in a closed state with pressure fluid. The system provides feeding a first and a second chamber 99a and 99b with pressure fluid from the first or second actuator port 72 or 74 notwithstanding a simple configuration of the meter-in flow control valve 1 to establish and block fluid communication between the outlet port 12 and the pump port.

Abstract translation: 方向控制阀系统与液压致动器一起提供，其使用流入式流量控制阀，结构简单，允许压力流体进入液压致动器的第一和第二室。 方向控制阀系统包括用于建立和阻止泵口与出口12的流体连通的流入式流量控制阀1，与出口端口流体连通的第一和第二负载检查阀2和3 12和用于在第一和第二负载检查阀2和3的输出侧与罐口71建立第一和第二致动器端口72和74中的一个的流体连通的出口流量控制阀4，以及 具有允许第一和第二负载检查阀2和3通过压力流体保持在关闭状态的布置。 尽管流量控制阀1具有简单的结构，该系统提供了第一和第二室99a和99b与第一或第二致动器端口72或74的压力流体的供给，以建立和阻止出口12之间的流体连通 和泵口。

公开(公告)号：US5551478A

公开(公告)日：1996-09-03

申请号：US327026

申请日：1994-10-21

Applicant: Leo J. Veilleux, Jr. ,  David T. Anzulewicz ,  Gerald P. Dyer

Inventor： Leo J. Veilleux, Jr. ,  David T. Anzulewicz ,  Gerald P. Dyer

IPC: F02C9/28 ,  F15B21/02 ,  F15B21/08 ,  G05B19/414 ,  F15B13/07

CPC classification number: F15B21/08 ,  G05B19/4144 ,  G05B2219/34238 ,  Y10T137/87201 ,  Y10T137/87209

Abstract: A hydraulic control system for a jet aircraft engine has an electronic control that commands a pair of torque motors to ultimately control the position of each one of a plurality of two-position, "latching" hydraulic actuator valves. A first torque motor is operable with a three-position, on/off hydraulic valve. The second torque motor operates in conjunction with a second valve to control the linear position of the spool of a multiplexer selector valve. The multiplexer selector valve has a plurality of positions that the spool can be linear translatable to. At each position is located a pair of control ports to which are ultimately connected one side of each of a pair of corresponding hydraulic actuator valves. The actuator valves may comprise fuel or air valves. A selected fuel or air actuator valve is translated between one of its two positions by translating the spool of the multiplexer selector valve to the appropriate position and then porting high pressure hydraulic fluid to that actuator valve for a predetermined period of time. The control system can asynchronously chose any fuel or air actuator valve to translate, as necessary, at any point in time.

Abstract translation: 用于喷气式飞机发动机的液压控制系统具有电子控制器，其命令一对扭矩电动机最终控制多个两位置“锁定”液压致动器阀中的每一个的位置。 第一扭矩电动机可与三位置的开/关液压阀一起操作。 第二扭矩马达与第二阀一起操作以控制多路转换器选择阀的线轴的线性位置。 多路复用器选择阀具有多个位置，该线轴可以被直线地平移。 在每个位置处设置有一对控制端口，最终连接到一对相应的液压致动器阀的每一个的一侧。 致动器阀可以包括燃料或空气阀。 所选择的燃料或空气致动器阀通过将多路复用器选择阀的阀芯平移到合适的位置，然后将高压液压流体移动到该致动器阀门一段预定的时间段而在其两个位置中的一个之间平移。 控制系统可以根据需要在任何时间点异步地选择任何燃料或空气致动器阀来翻译。

公开(公告)号：US5443087A

公开(公告)日：1995-08-22

申请号：US166255

申请日：1993-12-13

Applicant: Colin K. Myles

Inventor： Colin K. Myles

IPC: G05B11/36 ,  G05B11/50 ,  G05D16/20

CPC classification number: G05D16/2093 ,  G05D16/2053 ,  Y10T137/0396 ,  Y10T137/2544 ,  Y10T137/87201 ,  Y10T137/87209

Abstract: A method and system are provided for controlling a pressurized fluid such as nitrogen gas which may be initially stored at a pressure as high as 20,000 psi. The pressurized nitrogen gas may be utilized in high pressure gas systems such as in gas-assisted injection molding systems or low pressure gas systems such as robotic control and actuators. A valve assembly is utilized in the method and system and includes an electric proportioning device such as a pneumatic servovalve and a pair of pneumatic, fluidly-coupled valves which are piloted by the servovalve to regulate the pressure of the pressurized nitrogen gas. In the method and system, the servovalve operates in a closed loop fashion by utilizing feedback from a feedback device such as a pressure transducer. A controller in the closed loop is responsive to a pressure signal from the pressure transducer and a preset reference signal to provide an error control signal to the servovalve.

Abstract translation: 提供了一种用于控制加压流体例如氮气的方法和系统，其可以最初以高达20,000psi的压力存储。 加压氮气可用于高压气体系统，例如气体辅助注射成型系统或低压气体系统，例如机器人控制和致动器。 在该方法和系统中使用阀组件，并且包括诸如气动伺服阀的电配比装置和由伺服阀引导的一对气动流体耦合阀，以调节加压氮气的压力。 在该方法和系统中，伺服阀通过利用诸如压力传感器之类的反馈装置的反馈以闭环方式工作。 闭环中的控制器响应于来自压力传感器的压力信号和预设的参考信号，以向伺服阀提供误差控制信号。

公开(公告)号：US5272959A

公开(公告)日：1993-12-28

申请号：US938491

申请日：1992-08-31

Applicant: Kurt R. Lonnemo

Inventor： Kurt R. Lonnemo

IPC: F15B13/02 ,  F15B11/08

CPC classification number: F15B13/02 ,  Y10T137/87201

Abstract: A hydraulic control system comprising a hydraulic actuator having opposed openings adapted to alternately function as inlets and outlets for moving the element of the actuator in opposite directions, a pump for supplying fluid to said actuator, a directional valve comprising pilot operated meter-in valves to which the fluid from the pump is supplied through first lines for controlling the direction of movement of the actuator, and a pilot operated meter-out valve associated with each opening of the actuator for controlling the flow out of said actuator. The pressure of fluid being supplied to the actuator by the meter-in valve is sensed and supplied to a line extending from the output of the meter-in valve. A valve is provided in this line to provide a force selectively on the meter-in valve opposing the movement of the meter-in valve by the pilot pressure. The valve may comprise either a modulating valve or a shut-off valve.

Abstract translation: 一种液压控制系统，包括具有相对的开口的液压致动器，所述液压致动器具有适于交替地用作入口和出口，用于沿相反方向移动致动器的元件，用于向所述致动器供应流体的泵，方向阀，其包括先导操作的计量阀 来自泵的流体通过用于控制致动器的运动方向的第一管线供应，以及与致动器的每个开口相关联的先导操作的排出阀，用于控制流出所述致动器的流量。 通过计量阀供给到致动器的流体的压力被感测并提供给从计量阀的输出延伸的管线。 在该管线中设有一个阀门，以便在计量阀上选择性地提供一个力，使其与导向阀压力相反。 阀可以包括调节阀或截止阀。

公开(公告)号：US5186213A

公开(公告)日：1993-02-16

申请号：US476443

申请日：1991-06-10

Applicant: Eizo Urata ,  Shinpei Miyakawa

Inventor： Eizo Urata ,  Shinpei Miyakawa

IPC: F15B13/04 ,  F15B13/12 ,  F15B21/06

CPC classification number: F15B13/12 ,  F15B13/0402 ,  F15B21/06 ,  Y10T137/8659 ,  Y10T137/86598 ,  Y10T137/87201 ,  Y10T137/87209

Abstract: An improved hydraulic servo-valve including a spool (10, 10R, 10L) adapted to slidably move in a valve body (1) to change the direction of flow of a working liquid and vary a flow rate of the working liquid, nozzle back-pressure chambers (18, 18R, 18L) to which a pilot pressure is applied for displacing the spool (10, 10R, 10L), and a flapper mechanism comprising nozzles (19, 19R, 19L) and flappers (20, 20R, 20L) is disclosed. Static pressure bearings (14R, 14L, 141R, 141L, 142R, 142L) are formed at opposite ends of the spool (10, 10R, 10L). In addition, the hydraulic servo-valve is formed with passages extend from a pump port (P) to the nozzle back-pressure chambers (18, 18R, 18L) via the static pressure bearings (14R, 14L, 141R, 141L, 142R, 142L).

Abstract translation: PCT No.PCT / JP99 / 01221 Sec。 371日期1991年6月10日 102（e）日期1991年6月10日PCT提交1988年12月2日PCT公布。 出版物WO89 / 05407 日期：1989年6月15日。一种改进的液压伺服阀，包括适于在阀体（1）中可滑动地移动以改变工作液体的流动方向的阀芯（10,10R，10L），并且改变流速 施加有用于使阀芯（10,10R，10L）移位的先导压力的工作液体喷嘴背压室（18,18R，18L）以及包括喷嘴（19,19R，19L）和挡板的挡板机构 （20,20R，20L）。 静压轴承（14R，14L，141R，141L，142R，142L）形成在阀芯（10,10R，10L）的相对端。 此外，液压伺服阀形成有通过静压轴承（14R，14L，141R，141L，142R，...）从泵口（P）延伸到喷嘴背压室（18,18R，18L） 142L）。

公开(公告)号：US5027858A

公开(公告)日：1991-07-02

申请号：US401779

申请日：1989-09-01

Applicant: Harold Gold

Inventor： Harold Gold

IPC: F15B13/043

CPC classification number: F15B13/043 ,  Y10T137/86598 ,  Y10T137/87201 ,  Y10T137/87209

Abstract: Two and three stage servovalves having a first stage comprising a torque-motor driven, double jet, flapper valve, extend the present art in dynamic response through the replacement of the present flapper valve inlet orifices with active flow controllers. The flow controllers hold the flow rate from the pressure supply substantially constant under varying supply pressure and under varying operating conditions of the flapper valve and of the second and third stages. The flow controllers increase the gain of differential pressure to flapper displacement, through which the flapper to nozzle null gap can be reduced which, in turn, further increases the gain of differential pressure to flapper displacement and reduces the total flapper stroke. The stroke reduction reduces the torque-motor centering spring force, through which the torque-motor limited differential pressure can be increased. These factors significantly extend the operating supply pressure range and extend the frequency band of second and third stages of multistage servovalves.

Abstract translation: 具有第一级的二级和三级伺服阀包括扭矩电动机驱动的双重喷射式挡板阀，通过用主动式流量控制器替换当前的挡板阀入口孔，使本技术在动态响应中延伸。 流量控制器在变化的供给压力下和在挡板阀以及第二和第三级的变化的操作条件下保持来自压力供应的流速基本恒定。 流量控制器增加了压差增加到挡板位移，从而可以减少挡板到喷嘴零点间隙，进而进一步增加压差增益到挡板位移，并减少总挡板行程。 行程减少减少了扭矩 - 电机定心弹簧力，扭矩 - 电机限制压差可以通过该力矩增加。 这些因素显着延长了工作供应压力范围，并延长了多级伺服阀第二级和第三级的频带。

公开(公告)号：US4753157A

公开(公告)日：1988-06-28

申请号：US2857

申请日：1987-01-13

Applicant: Kurt R. Lonnemo ,  Nalin J. Shah

Inventor： Kurt R. Lonnemo ,  Nalin J. Shah

IPC: F15B11/05 ,  F15B11/04 ,  F15B11/08 ,  F15B13/02

CPC classification number: F15B13/02 ,  Y10T137/87201

Abstract: A hydraulic control system comprising a hydraulic actuator having opposed openings adapted to alternately function as inlets and outlets for moving the element of the actuator in opposite directions and a variable displacement pump with loading sensing control for supplying fluid to said actuator. A pilot operated spool type meter-in valve is provided to which the fluid from the pump is supplied and a pilot controller alternately supplies fluid at pilot pressure to the meter-in valve for controlling the direction and displacement of movement of the meter-in valve and the direction and velocity of the actuator. A pair of lines extends from the meter-in valve to the respective openings of the actuator and a pilot operated meter-out valve is associated with each line of the actuator for controlling the flow out of the actuator when that line to the actuator does not have pressure fluid from the pump applied thereto. Pressure of fluid in the line to the actuator, which does not have pressure fluid from the pump, is applied to the meter-in valve to apply a centering force which aids the pressure compensating flow forces to keep the flow constant.

Abstract translation: 一种液压控制系统，包括液压致动器，该液压致动器具有适于交替地用作入口和出口的相对开口，用于沿相反方向移动致动器的元件;以及可变排量泵，其具有用于向所述致动器供应流体的负载感测控制。 提供了一个先导操作的阀芯式计量阀，来自泵的流体被供给到该控制阀，并且先导控制器交替地将先导压力的流体供给到计量阀，以控制流量计的阀门的运动方向和位移 以及执行器的方向和速度。 一对线从计量阀延伸到致动器的相应开口，并且先导操作的排出阀与致动器的每个管线相关联，用于当致动器的线不到达时控制致动器的流出 从其上施加来自泵的压力流体。 在没有来自泵的压力流体的致动器的管线中的流体的压力被施加到计量阀，以施加有助于压力补偿流动力保持流量恒定的定心力。

公开(公告)号：US4516604A

公开(公告)日：1985-05-14

申请号：US602438

申请日：1984-04-20

Applicant: John F. Taplin

Inventor： John F. Taplin

IPC: F16K31/365 ,  F15B13/04 ,  F15B13/042 ,  F15C3/00 ,  F15B13/043

CPC classification number: F15B13/0405 ,  F15B13/042 ,  Y10T137/87201 ,  Y10T137/87209

Abstract: Supply and waste diaphragm valves communicate with each of two load ports 26, 28 and all valves are controlled by a pilot valve 78 and a pressure reversing valve 74. In one form, the pilot valve 356 has a rocker arm valve member 366. The pilot valve 78 applies high or low fluid pressure to control chambers 48, 64 and the control faces of two main diaphragms 40, 46, and it applies the same pressure to a diaphragm 90 which actuates the reversing valve 74. The pressure reversing valve 74 applies a reverse pressure to the control chambers 56, 62 and the control faces of the other two main diaphragms 42, 44. The pressure reversing valve 74 is a pressure actuated, supply and waste type valve in which the pressure applied by the pilot valve actuates a pressure driven element. The pressure driven element may be a diaphragm 90 or bellows 100. A higher control pressure is obtained with a ram nozzle 66 directed into the supply fluid at a point of maximum flow velocity. Seat loading of the diaphragms may be created by positioning valve seats 260, 266 beyond the free positions of the diaphragms 252, 270.

Abstract translation: 供应和废弃隔膜阀与两个装载端口26,28中的每一个连通，并且所有阀由先导阀78和压力换向阀74控制。在一种形式中，先导阀356具有摇臂阀构件366.导向件 阀78将高或低流体压力施加到控制室48,64和两个主隔膜40,46的控制面，并且将相同的压力施加到致动换向阀74的隔膜90.压力换向阀74施加 对控制室56,62和其他两个主隔膜42,44的控制面的反向压力。压力换向阀74是压力驱动的供应和废物型阀，其中由先导阀施加的压力致动压力 驱动元件 压力驱动元件可以是隔膜90或波纹管100.在最大流速的点处，冲头喷嘴66被引导到供给流体中获得更高的控制压力。 可以通过将阀座260,266定位超过隔膜252,270的自由位置来产生隔膜的座位负载。

公开(公告)号：US4469007A

公开(公告)日：1984-09-04

申请号：US433111

申请日：1981-11-20

Applicant: Kurt B. Melocik

Inventor： Kurt B. Melocik

IPC: F15B13/042 ,  F15B13/08

CPC classification number: F15B13/0422 ,  Y10T137/87072 ,  Y10T137/87201

Abstract: A single lever pilot control system (10) controls the simultaneous operation of two actuators (16,18). A mechanism (48) holds a first control valve (20) in an actuated position in response to movement of the handle (29) along a first axis (44) while freeing the handle (29) to return to a neutral position. Further movement of the handle (29) along a different axis to operate the second actuator (18) does not override the automatic stopping of the first actuator (16). The mechanism (48) provides a more precise control of automatically stopping one actuator while simultaneously operating the second actuator.

Abstract translation: PCT No.PCT / US81 / 01545 Sec。 371日期1981年11月20日 102（e）1981年11月20日PCT PCT 1991年11月20日PCT公布。 出版物WO83 / 01820 日期：1983年5月26日。单杆先导控制系统（10）控制两个致动器（16,18）的同时操作。 响应于手柄（29）沿着第一轴线（44）的移动，机构（48）将第一控制阀（20）保持在致动位置，同时释放手柄（29）以返回中立位置。 手柄（29）沿着不同的轴线进一步移动以操作第二致动器（18）不会超过第一致动器（16）的自动停止。 机构（48）提供了更精确的控制，自动停止一个致动器同时操作第二致动器。

公开(公告)号：US4385639A

公开(公告)日：1983-05-31

申请号：US214354

申请日：1980-12-08

Applicant: Peter A. Holborow

Inventor： Peter A. Holborow

IPC: F16K11/065 ,  F16K27/04 ,  F16K31/126 ,  G05D16/10

CPC classification number: F16K31/1268 ,  F16K11/0655 ,  F16K27/041 ,  Y10T137/2554 ,  Y10T137/86413 ,  Y10T137/87201

Abstract: A self-cycling valve including a main valve and an operator valve. The main valve comprises a body having an inlet port, an exhaust port, and two outlet ports, and valve elements for controlling communication between each outlet port and the inlet and exhaust ports. The operator valve has a valve member movable between two extreme positions for controlling operation of the valve elements of the main valve. In one extreme position of the valve member, one outlet port of the main valve communications with the inlet port and the other outlet port communicates with exhaust; in the other extreme position of the valve member, the outlet port connections are reversed. The valve member of the operator valve cycles between its extreme positions in response to fluid pressure levels at the outlet ports of the main valve. A spring-biased, pivoting detent urges the operator valve member into each of its extreme positions, the spring force being applied to the detent along a line transverse to the direction of movement of the valve member, so that the biasing force decreases during the movement of the valve member from each extreme position toward its midpoint of travel and increases during movement of the valve member from the midpoint of its travel to the other extreme position. Pistons at opposite ends of the operator valve member respond to fluid pressures at the outlet ports, respectively, for moving the valve member back and forth between its two extreme positions.

Abstract translation: 自动循环阀，包括主阀和操作阀。 主阀包括具有入口，排气口和两个出口的主体，以及用于控制每个出口与入口和排气口之间的连通的阀元件。 操作阀具有可在两个极限位置之间移动的阀构件，用于控制主阀的阀元件的操作。 在阀构件的一个极限位置，主阀的一​​个出口与进气口和另一出口相通，与排气口连通; 在阀构件的另一个极限位置，出口端口连接是相反的。 操作阀的阀构件响应主阀出口处的流体压力水平在其极限位置之间循环。 弹簧偏压的枢转止动件将操作者阀构件推动到其每个极限位置，弹簧力沿着横向于阀构件的运动方向的线施加到制动器，使得偏压力在运动期间减小 从每个极限位置朝向其行程中点，阀构件从其行程中点移动到另一个极限位置时增加。 操作阀构件的相对端处的活塞分别响应出口处的流体压力，用于在其两个极限位置之间来回移动阀构件。