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    Pneumatic circuit to provide different opening and closing speeds for a pneumatic operator
    22.
    发明授权
    Pneumatic circuit to provide different opening and closing speeds for a pneumatic operator 失效
    气动回路为气动操作者提供不同的开启和关闭速度

    公开(公告)号：US5465746A

    公开(公告)日：1995-11-14

    申请号：US181518

    申请日：1994-01-13

    Applicant: Peter F. Ebbing

    Inventor： Peter F. Ebbing

    IPC: F16K31/122 ,  F15B11/04 ,  F15B11/042 ,  F15B11/06 ,  F15B21/10 ,  F15B13/04

    CPC classification number: F15B11/042 ,  F15B11/0413 ,  F15B21/10 ,  Y10T137/0396 ,  Y10T137/2544 ,  Y10T137/87217

    Abstract: A pneumatic circuit prolongs a pneumatic valve opening time using an accumulator with two quick exhaust type valves in series while providing a rapid valve closing time. This structure and method is self-contained and amenable to retrofit in existing installations without any external connections. Slow opening is achieved by routing inlet gas pressure simultaneously to an accumulator and the operating cylinder of the valve to be opened. A tortuous piping path and increased volume to be pressurized due to the addition of the accumulator substantially reduces the isolation valve opening time, thereby eliminating problems associated with quick opening of a pneumatic valve. When the pneumatic valve needs to be closed quickly, slight venting toward the inlet valve immediately causes the quick exhaust valves to vent their downstream pressure. The accumulator then vents through its quick exhaust valve while separately the main quick exhaust valve quickly vents the air cylinder of the pneumatic valve. Closing times penalties of less than 50 milliseconds can be achieved using this configuration and opening times can be increased by adjusting the volume of the accumulator.

    Abstract translation: 气动回路使用具有两个快速排气型阀的蓄能器来延长气动阀打开时间，同时提供快速的关阀时间。 这种结构和方法是独立的，并且适合在现有的安装中进行改造而没有任何外部连接。 通过将进气压力同时传送到蓄能器并打开阀的操作气缸来实现缓慢打开。 由于添加蓄能器而使曲折的管道和增加的体积被加压，从而大大减少了隔离阀打开时间，从而消除了与快速打开气动阀相关的问题。 当气动阀需要快速关闭时，对入口阀的轻微排气立即使快速排气阀排出其下游压力。 蓄能器然后通过其快速排气阀排出，而主快速排气阀则快速排出气动阀的气缸。 使用该配置可以实现小于50毫秒的关闭时间，并且可以通过调节蓄能器的体积来增加打开时间。

    Flow rate control valve
    23.
    发明授权
    Flow rate control valve 失效
    流量控制阀

    公开(公告)号：US4262695A

    公开(公告)日：1981-04-21

    申请号：US77154

    申请日：1979-09-19

    Applicant: Tomomitsu Iizumi

    Inventor： Tomomitsu Iizumi

    IPC: F01L25/04 ,  F15B11/04 ,  F15B13/02 ,  F16K15/18 ,  F16K17/34 ,  F15B13/042

    CPC classification number: F15B13/02 ,  F01L25/04 ,  F15B11/0413 ,  F16K15/18 ,  F16K17/34 ,  F15B2211/40515 ,  F15B2211/40584 ,  F15B2211/50518 ,  F15B2211/50554 ,  F15B2211/5153 ,  F15B2211/7053 ,  F15B2211/75 ,  Y10T137/87499 ,  Y10T137/87563

    Abstract: A flow rate control valve for use with an actuator, in which a fluid may be quickly discharged from a cylinder in the actuator on a return stroke of a piston which is slidingly fitted in the cylinder. The valve includes a casing defining a fluid inlet port and a fluid outlet port, a fluid passage interconnecting the two ports, a throttle valve for restricting the opening of the fluid passage, and a pressure-regulating valve which is adapted to be open at pressures over a given pressure level. In this flow rate control valve, the throttle valve and pressure adjusting valve may be combined into a composite valve. An externally adjustable pressure adjusting spring, resiliently biasses the pressure regulating valve.

    Abstract translation: 一种用于致动器的流量控制阀，其中流体可以在滑动地装配在气缸中的活塞的返回行程上从致动器中的气缸快速排出。 阀包括限定流体入口和流体出口的壳体，互连两个端口的流体通道，用于限制流体通道开口的节流阀和适于在压力下打开的压力调节阀 超过给定的压力水平。 在该流量控制阀中，节流阀和压力调节阀可以组合成复合阀。 外部可调节的压力调节弹簧，弹性地偏压压力调节阀。

    Fluid control valve
    27.
    发明授权
    Fluid control valve 有权

    公开(公告)号：US10030677B2

    公开(公告)日：2018-07-24

    申请号：US14913602

    申请日：2014-08-21

    Applicant: SMC CORPORATION

    Inventor： Kenji Shishido

    IPC: F15B11/04 ,  F16K15/00

    CPC classification number: F15B11/0413 ,  F15B2211/8855 ,  F16K15/00 ,  Y10T137/7781

    Abstract: Inside a valve housing equipped with a first flow path and a second flow path that connect in parallel with a first port and a second port, there are provided a needle valve body that opens/closes a throttle hole in the first flow path, a check valve that opens/closes the second flow path, and a piston that performs an open/close control of the needle valve body through the interaction of the pressure of a fluid introduced into a pressure chamber and the spring force of a compression spring. The needle valve body is formed at the tip of a rod coupled to the piston. Inside the rod and the needle valve body there is formed a conduction hole connecting the throttle hole and the pressure chamber.

    FLUID CONTROL VALVE
    30.
    发明申请
    FLUID CONTROL VALVE 审中-公开
    流体控制阀

    公开(公告)号：US20160208825A1

    公开(公告)日：2016-07-21

    申请号：US14913602

    申请日：2014-08-21

    Applicant: SMC CORPORATION

    Inventor： Kenji SHISHIDO

    IPC: F15B11/04 ,  F16K15/00

    CPC classification number: F15B11/0413 ,  F15B2211/8855 ,  F16K15/00 ,  Y10T137/7781

    Abstract: Inside a valve housing equipped with a first flow path and a second flow path that connect in parallel with a first port and a second port, there are provided a needle valve body that opens/closes a throttle hole in the first flow path, a check valve that opens/closes the second flow path, and a piston that performs an open/close control of the needle valve body through the interaction of the pressure of a fluid introduced into a pressure chamber and the spring force of a compression spring. The needle valve body is formed at the tip of a rod coupled to the piston. Inside the rod and the needle valve body there is formed a conduction hole connecting the throttle hole and the pressure chamber.

    Abstract translation: 在配备有与第一端口和第二端口并联连接的第一流路和第二流路的阀壳体内设置有打开/关闭第一流路中的节流孔的针阀体， 打开/关闭第二流路的阀，以及通过引入压力室的流体的压力与压缩弹簧的弹簧力的相互作用来执行针阀体的打开/关闭控制的活塞。 针阀体形成在与活塞连接的杆的末端。 在杆和针阀体内部形成有连接节流孔和压力室的导通孔。

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