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    • 13. 发明授权
    • Actuator control device
    • 执行机构控制装置
    • US07913612B2
    • 2011-03-29
    • US12086478
    • 2006-12-11
    • Kazumi Oosima
    • Kazumi Oosima
    • F15B13/04
    • B66F9/22F15B13/015F15B13/0403F15B13/0426
    • In an actuator control device that controls an expansion/contraction operation of a hydraulic cylinder, when a main spool 52 is switched to a discharge position for discharging working fluid in the hydraulic cylinder, a back pressure chamber 7 communicates with a tank passage 13 via a first port 14, thereby opening an operate check valve 51, and as a result, the working fluid in the hydraulic cylinder flows into a return passage 4 from an actuator port 1 and into a pilot chamber 20 through a second port 15. A pilot spool 53 is maintained in a balanced position by the pressure of the pilot chamber 20, which is caused to act by a front-rear differential pressure of a control throttle 25, and the biasing force of a spring 22 housed in a spring chamber 21, and therefore the opening area of the first port 14 is controlled to and maintained at a fixed level.
    • 在控制液压缸的膨胀/收缩操作的致动器控制装置中,当主阀芯52切换到用于排放液压缸中的工作流体的排出位置时,背压室7经由 第一端口14,从而打开操作止回阀51,结果,液压缸中的工作流体从致动器端口1流入返回通道4,并通过第二端口15流入先导室20.先导阀芯 53通过先导室20的压力保持在平衡位置,导向室20由控制节流阀25的前后差压和容纳在弹簧室21中的弹簧22的作用力起作用, 因此第一端口14的开口面积被控制并保持在固定的水平。
    • 14. 发明申请
    • Actuator Control Device
    • 执行器控制装置
    • US20090282825A1
    • 2009-11-19
    • US12086478
    • 2006-12-11
    • Kazumi Oosima
    • Kazumi Oosima
    • F15B21/00F15B13/02
    • B66F9/22F15B13/015F15B13/0403F15B13/0426
    • In an actuator control device that controls an expansion/contraction operation of a hydraulic cylinder, when a main spool 52 is switched to a discharge position for discharging working fluid in the hydraulic cylinder, a back pressure chamber 7 communicates with a tank passage 13 via a first port 14, thereby opening an operate check valve 51, and as a result, the working fluid in the hydraulic cylinder flows into a return passage 4 from an actuator port 1 and into a pilot chamber 20 through a second port 15. A pilot spool 53 is maintained in a balanced position by the pressure of the pilot chamber 20, which is caused to act by a front-rear differential pressure of a control throttle 25, and the biasing force of a spring 22 housed in a spring chamber 21, and therefore the opening area of the first port 14 is controlled to and maintained at a fixed level.
    • 在控制液压缸的膨胀/收缩操作的致动器控制装置中,当主阀芯52切换到用于排放液压缸中的工作流体的排出位置时,背压室7经由 第一端口14,从而打开操作止回阀51,结果,液压缸中的工作流体从致动器端口1流入返回通道4,并通过第二端口15流入先导室20.先导阀芯 53通过先导室20的压力保持在平衡位置,导向室20由控制节流阀25的前后差压和容纳在弹簧室21中的弹簧22的作用力起作用, 因此第一端口14的开口面积被控制并保持在固定的水平。
    • 15. 发明授权
    • Three-way pneumatic commutator and volume booster
    • 三通气动换向器和体积助力器
    • US06935107B2
    • 2005-08-30
    • US10724646
    • 2003-12-01
    • Flavio Tondolo
    • Flavio Tondolo
    • F15B13/04F15B13/042F16D31/02
    • F15B13/0426
    • Disclosed is an actuator system for positioning a piston within a cylinder and comprising a compressed air source, a positioner, and first and second pneumatic valving modules. The first and second pneumatic valving modules respectively comprise first and second volume boosters to amplify the flow of compressed air, first and second derivative boosters to alternately supply and exhaust compressed air into and out of the first and second ends at high flow rates, and first and second commutators to selectively allow the compressed air to flow respectively between the volume boosters and the derivative boosters. A safety valve opens at a predetermined pressurization level such that the first and second commutators may be energized. A volume tank provides compressed air to each one of the first and second pneumatic valving modules upon energization of the first and second commutators.
    • 公开了一种用于将活塞定位在气缸内并包括压缩空气源,定位器以及第一和第二气动阀门模块的致动器系统。 第一和第二气动阀模块分别包括第一和第二体积增压器,用于放大压缩空气的流动,第一和第二导数助力器以高流速交替地供给和排出压缩空气进出第一和第二端,以及第一 以及第二换向器,以选择性地允许压缩空气分别在体积增压器和衍生增压器之间流动。 安全阀以预定的加压水平打开,使得第一和第二换向器可以被通电。 容积罐在通电第一和第二换向器时,向第一和第二气动阀组件中的每一个提供压缩空气。
    • 17. 发明授权
    • Wireless, intrinsically safe valve
    • 无线,本质安全阀
    • US06685159B1
    • 2004-02-03
    • US09891487
    • 2001-06-25
    • Richard E. Schnell
    • Richard E. Schnell
    • F16K3102
    • F15B13/0426F15B13/043F15B21/08
    • A valve system (10) that employs a piezo-electric element (38) to activate a fluid flow valve (18) so as to use a minimal amount of electrical energy. The piezo-electric element (38) activates a pilot pressure valve (36), which allows a control fluid to pass to a main control valve (44). The control fluid causes the main control valve (44) to activate a working element (16), which in turn operates the fluid flow valve (18). A switching assembly (70) is employed to activate the piezo-electric element (38). The switching assembly (70) can include various types of switching devices, such as RF switching devices, optical switching devices, infrared switching devices and low voltage electrical switching devices.
    • 一种阀系统(10),其采用压电元件(38)来激活流体流量阀(18)以便使用最小量的电能。 压电元件(38)激活先导压力阀(36),其允许控制流体传递到主控制阀(44)。 控制流体使得主控制阀(44)启动工作元件(16),工作元件(16)又操作流体流量阀(18)。 使用开关组件(70)来激活压电元件(38)。 开关组件(70)可以包括各种类型的开关器件,例如RF开关器件,光开关器件,红外开关器件和低压电开关器件。