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    HYDRAULIC CONNECTION HAVING A FLEXIBLE PORT MOUTH AND METHOD FOR CONNECTING SAME
    2.
    发明申请
    HYDRAULIC CONNECTION HAVING A FLEXIBLE PORT MOUTH AND METHOD FOR CONNECTING SAME 审中-公开

    公开(公告)号：US20170184135A1

    公开(公告)日：2017-06-29

    申请号：US15382151

    申请日：2016-12-16

    申请人： SPX FLOW, Inc.

    发明人： Michael T. Landrum

    IPC分类号： F15B13/02 ,  F16K31/60 ,  F15B11/00 ,  F16K39/06

    CPC分类号： F15B13/02 ,  F15B11/00 ,  F15B2211/405 ,  F15B2211/422 ,  F16K5/0257 ,  F16K11/0836 ,  F16K27/062 ,  F16K31/602 ,  F16K39/06

    摘要： A hydraulically balanced assembly is provided. The assembly includes: a valve body defining a tapered axial passageway; and a rotor having a tapered outer diameter such that the rotor has a first portion having a wider diameter and a second portion having a smaller diameter, the rotor being dimensioned to fit within the axial passageway of the valve body, the rotor further defining a rotor axial passageway having a first passageway portion and second passageway portion, the rotor further defining a first and second port, where each of the first and second ports provide fluid communication between the tapered outer diameter and the rotor axial passageway, wherein the first and second portions define openings having different cross-sectional areas where the first passageway portion is located in a first portion of the rotor and a second passageway portion is located in the second portion of the rotor and the difference in cross-sectional areas between the first passageway portion and second passageway portion and the amount of taper of the outer diameter of the rotor are related according to the Landrum relation.

    METHOD, SYSTEM, APPARATUS AND DEVICE FOR DIRECTIONAL FLOW CONTROL OF FLUIDS AND GASES
    3.
    发明申请
    METHOD, SYSTEM, APPARATUS AND DEVICE FOR DIRECTIONAL FLOW CONTROL OF FLUIDS AND GASES 审中-公开
    用于流体和气体的方向流量控制的方法，系统，装置和装置

    公开(公告)号：US20160223090A1

    公开(公告)日：2016-08-04

    申请号：US14917582

    申请日：2014-09-26

    申请人： BHARATH SAI KUMAR G.R.

    发明人： Bharath Sai Kumar G. R.

    IPC分类号： F16K11/07 ,  F15B11/08 ,  F15B13/04 ,  F15B1/26

    CPC分类号： F16K11/07 ,  F15B1/26 ,  F15B11/08 ,  F15B13/0401 ,  F15B13/0406 ,  F15B2211/405 ,  F16K11/0856 ,  Y10T137/86533 ,  Y10T137/86549 ,  Y10T137/86566 ,  Y10T137/86646 ,  Y10T137/86662

    摘要： According to first aspect, a flow control valve comprises outer hollow cylinder and an indexing member. The hollow cylinder comprises a pressure port, a tank port, a first port and a second port on the curved surface. The indexing member comprises an inner cylinder, and is fit to the hollow part of the outer cylinder. When the inner cylinder is at a first relative position with the outer cylinder, the pressure port is connected to the first port and tank outlet is connected to the second port. When the inner cylinder is at a second relative position with the outer cylinder, the pressure port is connected to the second port and tank outlet is connected to first port. According to another aspect, a system for controlling a movement of a piston in an actuator may comprise an indexing valve, an actuator and a pump. The actuator comprises piston and piston rod. The indexing valve comprises outer cylinder and indexed inner cylinder. The pump is used to inject pressurized fluid. In one embodiment, piston is moved in one direction by the pressurized fluid when the indexed inner cylinder is at first index. In another embodiment, the piston is moved in other direction by the pressurized fluid when the indexed inner cylinder is at second index position.

    摘要翻译： 根据第一方面，一种流量控制阀包括外部空心圆筒和分度构件。 中空圆柱体包括压力端口，罐口，第一端口和弯曲表面上的第二端口。 分度构件包括内筒，并且配合到外筒的中空部。 当内筒与外筒处于第一相对位置时，压力端口连接到第一端口，并且罐出口连接到第二端口。 当内筒与外筒处于第二相对位置时，压力端口连接到第二端口，并且罐出口连接到第一端口。 根据另一方面，一种用于控制活塞在致动器中的运动的系统可以包括分度阀，致动器和泵。 致动器包括活塞和活塞杆。 分度阀包括外筒和分度内筒。 泵用于注入加压流体。 在一个实施例中，当分度的内筒处于第一指数时，活塞通过加压流体在一个方向上移动。 在另一个实施例中，当分度的内筒处于第二分度位置时，活塞在加压流体的另一方向上移动。

    Bi-directional flow control valve
    5.
    发明授权
    Bi-directional flow control valve 有权
    双向流量控制阀

    公开(公告)号：US06167906A

    公开(公告)日：2001-01-02

    申请号：US09344689

    申请日：1999-06-25

    申请人： Zilek Liberfarb

    发明人： Zilek Liberfarb

    IPC分类号： F16K31363

    CPC分类号： F16K31/0668 ,  F15B11/055 ,  F15B13/01 ,  F15B2211/405 ,  F15B2211/40553 ,  F15B2211/426 ,  F15B2211/455 ,  F15B2211/46 ,  F15B2211/465 ,  G05D16/2013 ,  Y10T137/7788

    摘要： A bi-directional flow control valve includes a two-port housing, and a hollow cage within the housing. The hollow cage has rows of cross-sectional holes that communicate with the ports. A hollow compensating spool is slidably arranged within the hollow cage between the cross-sectional holes. Pressure differential between the ports induces movement in the compensating spool. This movement causes the compensating spool to reduce the opening of one row of cross-sectional holes and increase the opening of the other. In this manner, the valve provides consistent flow control characteristics in each flow direction.

    摘要翻译： 双向流量控制阀包括两端口壳体和壳体内的中空笼。 中空笼具有与端口连通的一排横截面孔。 中空的补偿阀芯可滑动地布置在中空笼之间的横截面孔之间。 端口之间的压力差导致补偿阀芯中的运动。 该运动使得补偿线轴减小一排截面孔的开口并增加另一排的开口。 以这种方式，阀在每个流动方向上提供一致的流量控制特性。

    Speed reducer for pneumatic actuator
    7.
    发明授权
    Speed reducer for pneumatic actuator 失效
    气动执行器减速机

    公开(公告)号：US4889036A

    公开(公告)日：1989-12-26

    申请号：US199958

    申请日：1988-05-27

    申请人： Akihisa Yoshikawa ,  Masamichi Tajima ,  Watanabe Kunio ,  Toshiharu Sato

    发明人： Akihisa Yoshikawa ,  Masamichi Tajima ,  Watanabe Kunio ,  Toshiharu Sato

    IPC分类号： F15B11/06 ,  F15B11/048

    CPC分类号： F15B11/048 ,  F15B2211/30505 ,  F15B2211/30525 ,  F15B2211/31511 ,  F15B2211/31529 ,  F15B2211/31576 ,  F15B2211/405 ,  F15B2211/40584 ,  F15B2211/413 ,  F15B2211/41527 ,  F15B2211/41581 ,  F15B2211/424 ,  F15B2211/46 ,  F15B2211/50518 ,  F15B2211/50554 ,  F15B2211/5157 ,  F15B2211/575 ,  F15B2211/75 ,  F15B2211/755

    摘要： A speed-reducing valve assembly is provided in an air passage through which compressed air is discharged when a pneumatic actuator is decelerated. The speed-reducing valve assembly comprises a three-way valve actuated by a signal generated when the actuator has reached the point where deceleration is started, a relief valve through which the compressed air in the passage is let out when the air pressure has reached the preset level, and a check valve that allows only the admission of compressed air into the same passage. The signal-actuated three-way valve brings the air passage of the actuator into communication with the passage in which the relief valve and check valve are provided. When the signal generated when the actuator has reached the deceleration starting point is fed to the speed-reducing valve assembly, the exhaust passage of the actuator communicates with the relief valve and check valve. If the pressure in the actuator is lower than the desired level, the check valve opens to introduce a fluid of the desired pressure through the pressure-reducing valve. If the inside pressure is higher, the air is discharged through the relief valve. Thus the pressure in the exhaust-side pressure chamber of the actuator is always maintained at the desired level. The piston of the actuator is therefore rapidly and smoothly brought to a stop at the desired point.

    摘要翻译： 减速阀组件设置在空气通道中，当气动致动器减速时通过该减压阀组件排出压缩空气。 减速阀组件包括由致动器达到减速开始点时产生的信号致动的三通阀，当空气压力已达到时，通道中的压缩空气通过该溢流阀排出的安全阀 预设水平，以及只允许压缩空气进入同一通道的止回阀。 信号驱动的三通阀使致动器的空气通道与设置有安全阀和止回阀的通道连通。 当致动器达到减速起始点时产生的信号被馈送到减速阀组件，致动器的排气通道与安全阀和止回阀连通。 如果致动器中的压力低于期望水平，则止回阀打开以通过减压阀引入所需压力的流体。 如果内部压力较高，则空气通过安全阀排出。 因此，致动器的排气侧压力室中的压力总是保持在期望的水平。 因此，致动器的活塞在所需的位置处快速平稳地停止。

    Pump control system
    9.
    发明授权
    Pump control system 失效
    泵控制系统

    公开(公告)号：US3726093A

    公开(公告)日：1973-04-10

    申请号：US3726093D

    申请日：1971-11-15

    申请人： PARKER HANNIFIN CORP

    发明人： MALOTT T

    IPC分类号： F04B1/26 ,  F04B49/08 ,  F15B11/05 ,  F15B15/18 ,  F15B15/22

    CPC分类号： F04B49/08 ,  F15B11/05 ,  F15B2211/20553 ,  F15B2211/253 ,  F15B2211/26 ,  F15B2211/30525 ,  F15B2211/3111 ,  F15B2211/351 ,  F15B2211/405 ,  F15B2211/41563 ,  F15B2211/45

    摘要： A pump control system characterized in that the pressure drop across a variable area orifice embodied in a directional control valve for a fluid motor is utilized to vary the displacement of the pump so that the fluid motor is actuated at desired speed irrespective of variation of pump speed and motor load. The system is further characterized in that it embodies a power limiting device which senses increasing motor load pressure to decrease the displacement of the pump as the horsepower requirement approaches the maximum available horsepower. Yet a further characterizing feature of the present system is the provision of a pump de-stroking valve which is disposed in the pump output circuit upstream of the directional control valve to provide a bypass to the reservoir to maintain standby power drain at a low value.

    摘要翻译： 一种泵控制系统，其特征在于，利用流体马达的方向控制阀中实现的可变面积孔上的压降用于改变泵的位移，使得流体马达以期望的速度被驱动，而与泵速度的变化无关 和电机负载。 该系统的特征还在于它体现了功率限制装置，其在马力要求接近最大可用功率时感测到增加的电动机负载压力以减小泵的排量。 本系统的进一步的特征是提供一种泵去排气阀，其设置在方向控制阀上游的泵输出回路中，以向旁路提供旁路以将备用功率消耗保持在低值。