Servo pressure control valve
    31.
    发明授权
    Servo pressure control valve 失效
    伺服压力控制阀

    公开(公告)号:US08156960B2

    公开(公告)日:2012-04-17

    申请号:US12412849

    申请日:2009-03-27

    Applicant: Cory L. Fisher

    Inventor: Cory L. Fisher

    Abstract: A valve for controlling pressure in a system is provided. The valve includes a housing, a servo spool and a piston positioned within the housing with the piston and the servo spool being movable relative to each other. The piston defines a first orifice configured to communicate with a supply of pressurized fluid and a second orifice configured to communicate with a portion of the system exterior to the valve. A first chamber is arranged such that force due to fluid pressure in the first chamber is configured to move the piston in a first direction. The first chamber includes a third orifice configured to communicate with a controlled pressure in the system. A second chamber is at least partially defined by the housing and the piston and includes a fourth orifice configured to communicate with a low pressure fluid source. A biasing element is arranged in the second chamber. First and second fluid passages are provided in the servo spool and are configured such that in at least one relative position of the piston and the servo spool the first passage provides communication between the first orifice and the second orifice and in at least one other relative position the second passage provides communication between the second orifice and the fourth orifice.

    Abstract translation: 提供一种用于控制系统中的压力的​​阀。 阀包括壳体,伺服卷轴和定位在壳体内的活塞,活塞和伺服卷轴可相对于彼此移动。 所述活塞限定了构造成与加压流体供应源连通的第一孔口,以及构造成与所述阀门外部系统的一部分连通的第二孔口。 第一室被布置成使得由于第一室中的流体压力引起的力构造成沿第一方向移动活塞。 第一腔室包括构造成与系统中受控压力连通的第三孔。 第二室至少部分地由壳体和活塞限定,并且包括构造成与低压流体源连通的第四孔。 偏置元件布置在第二腔室中。 第一和第二流体通道设置在伺服卷轴中并且构造成使得在活塞和伺服卷轴的至少一个相对位置中,第一通道提供第一孔口和第二孔口之间的连通,并且在至少一个其它相对位置 第二通道提供第二孔与第四孔之间的连通。

    FLUID OPERATED ACTUATOR SYSTEM
    34.
    发明申请
    FLUID OPERATED ACTUATOR SYSTEM 有权
    流体操作执行器系统

    公开(公告)号:US20110146804A1

    公开(公告)日:2011-06-23

    申请号:US13059689

    申请日:2008-09-09

    Abstract: An actuation system (200) is provided. The actuation system (200) includes a fluid operated actuator (211) and a control valve (230). The control valve (230) is movable between a first position and a second position and is adapted to open a fluid flow path from a pressurized fluid supply (240) to the actuator (211) when the control valve (230) is in the first position. A diverting fluid conduit (246) is provided that is adapted to divert a portion of the pressurized fluid supplied to the actuator (211) when the control valve (230) is in the first position. The pressurized fluid diverted through fluid conduit (246) biases the control valve (230) towards a second position.

    Abstract translation: 提供致动系统(200)。 致动系统(200)包括流体操作致动器(211)和控制阀(230)。 控制阀(230)可在第一位置和第二位置之间移动,并且当控制阀(230)处于第一位置时,适于将流体流动路径从加压流体供应源(240)打开至致动器(211) 位置。 提供转向流体导管(246),其适于在控制阀(230)处于第一位置时将供应到致动器(211)的加压流体的一部分转向。 通过流体导管(246)转移的加压流体朝向第二位置偏压控制阀(230)。

    Stepper motor driven proportional actuator
    35.
    发明授权
    Stepper motor driven proportional actuator 有权
    步进电机驱动比例执行器

    公开(公告)号:US07963185B2

    公开(公告)日:2011-06-21

    申请号:US12045981

    申请日:2008-03-11

    Inventor: Mark A. Spickard

    Abstract: A stepper motor driven actuator that eliminates the need for a position sensor is provided. The stepper motor rotates a cam in a control piston valve. In a single nozzle embodiment, pressure balance is maintained by a spring preload on one end of the piston in one embodiment, and by hydraulic pressure acting on a double diameter end portion of the piston in another embodiment. As the cam is rotated, the change in the gap between the nozzle and the cam changes the pressures on the control piston ends, which forces the piston in the direction that will re-equalize the pressure based on the cam-nozzle gap. As a result, the head or rod of the actuator piston receives high pressure flow, thereby moving the actuator. Movement of the actuator rod provides mechanical feedback to the cam, causing the cam to move back to its mechanical null position.

    Abstract translation: 提供了一种无需位置传感器的步进马达驱动执行器。 步进电机使控制活塞阀中的凸轮旋转。 在单个喷嘴实施例中,在一个实施例中,通过在活塞的一端上的弹簧预载荷来维持压力平衡,并且在另一个实施例中通过作用在活塞的双直径端部上的液压来保持压力平衡。 当凸轮旋转时,喷嘴和凸轮之间的间隙的变化改变了控制活塞端部上的压力,这迫使活塞沿着基于凸轮喷嘴间隙重新平衡压力的方向。 结果,致动器活塞的头部或杆接受高压力流动,从而移动致动器。 致动器杆的移动为凸轮提供机械反馈,使凸轮移回其机械零位置。

    HYDRAULIC CONTROL VALVE ASSEMBLY WITH MONOLITHIC BODY AND SINGLE SPOOL PORT LOCK
    36.
    发明申请
    HYDRAULIC CONTROL VALVE ASSEMBLY WITH MONOLITHIC BODY AND SINGLE SPOOL PORT LOCK 有权
    液压控制阀组件与单体机体和单口阀口锁

    公开(公告)号:US20110132473A1

    公开(公告)日:2011-06-09

    申请号:US12631540

    申请日:2009-12-04

    Inventor: Massimo RINALDI

    Abstract: A hydraulic control valve with a monolithic body having four sides located between a top and a bottom, and all pilot ports on a body front side, valve work ports on the top side, three bores running within the body from the front side to a rear side, a spool in each bore, and a single three section spool port lock that locks two or three ports at the same time, the pilot ports presented machined female quick-connect connections, with spring wet cavities being provided for mechanically operated control spools.

    Abstract translation: 一种具有整体式液压控制阀,其具有位于顶部和底部之间的四个侧面,并且主体前侧上的所有先导端口,顶侧上的阀工作端口,从前侧到后部在主体内运行的三个孔 侧面,每个孔中的阀芯,以及同时锁定两个或三个端口的单个三段阀芯端口锁定,导向端口呈现机加工的母连接连接,其中设有用于机械操作的控制阀芯的弹簧湿腔。

    METHOD OF OPERATING A CONTROL VALVE ASSEMBLY FOR A HYDRAULIC SYSTEM
    37.
    发明申请
    METHOD OF OPERATING A CONTROL VALVE ASSEMBLY FOR A HYDRAULIC SYSTEM 有权
    操作液压系统控制阀组件的方法

    公开(公告)号:US20110094595A1

    公开(公告)日:2011-04-28

    申请号:US12603586

    申请日:2009-10-22

    Abstract: A method of operating a control valve assembly for a hydraulic system includes detecting the current operation of a first position sensor and a second position sensor to determine if at least one of the first position sensor and the second position sensor is inoperable. A pressure of the fluid at a first work port and a second work port is measured, and one of a first valve and a second valve is actuated when one of the first position sensor and the second position sensor is determined to be inoperable. The first valve is actuated based upon the fluid pressure measured at the second work port to adjust the flow of the fluid through the first work port. The second valve is actuated based upon the fluid pressure measured at the first work port to adjust the flow of the fluid through the second work port.

    Abstract translation: 操作液压系统的控制阀组件的方法包括检测第一位置传感器和第二位置传感器的当前操作,以确定第一位置传感器和第二位置传感器中的至少一个是不可操作的。 测量第一工作端口和第二工作端口处的流体的压力,并且当第一位置传感器和第二位置传感器之一被确定为不可操作时,第一阀和第二阀中的一个被致动。 基于在第二工作端口处测量的流体压力来驱动第一阀,以调节通过第一工作端口的流体的流动。 基于在第一工作端口处测量的流体压力来致动第二阀,以调节通过第二工作端口的流体的流动。

    Stepper motor driven proportional fuel metering valve
    38.
    发明授权
    Stepper motor driven proportional fuel metering valve 有权
    步进电机比例燃油计量阀

    公开(公告)号:US07926512B2

    公开(公告)日:2011-04-19

    申请号:US12040512

    申请日:2008-02-29

    Abstract: A low energy stepper motor driven fuel metering valve (FMV) that eliminates the need for a position sensor is provided. The stepper motor rotates a cam that replaces the flapper valve used in conventional systems. The cam rotation increases the gap between the cam and nozzle on one side of the cam. The gap difference affects the pressures on the spool piston ends, which forces the piston in the direction that will return the cam-nozzle gap to a distance that results in a pressure balance to return. As a result, the relatively low energy stepper motor controls the relatively high energy hydromechanical system via the cam-nozzle-orifice system. The cam is precision machined and assures stroke/degree gain accuracy. The hydraulic system assures the piston tracks the cam essentially perfectly except for the effects of piston stiction forces.

    Abstract translation: 提供了一种低能量步进电动机驱动燃料计量阀(FMV),无需位置传感器。 步进电机旋转一个凸轮,代替常规系统中使用的挡板阀。 凸轮旋转增加凸轮和凸轮在凸轮一侧上的间隙。 间隙差会影响滑阀活塞端的压力,这些压力将使活塞沿着使凸轮喷嘴间隙返回到导致压力平衡返回的距离。 因此,相对低能量的步进电机通过凸轮喷嘴孔口系统来控制相对高能量的液压机械系统。 凸轮精密加工,确保行程/度增益精度。 液压系统确保活塞基本上完美地跟踪凸轮,除了活塞静力的作用。

    Valve controller
    39.
    发明授权
    Valve controller 有权
    阀门控制器

    公开(公告)号:US07819133B2

    公开(公告)日:2010-10-26

    申请号:US11529783

    申请日:2006-09-29

    Abstract: A controller for controlling a valve is disclosed including a manifold assembly, a valve position indicator and a trigger assembly. An operating media distribution system is disposed in the manifold assembly and an electronic control unit is disposed in the controller. The electronic control unit operates at least one electromagnetic valve to control operating media flow via the operating media distribution system to activate an actuator which opens or closes the valve. The trigger assembly includes a cylinder adapted to receive an actuator shaft and provide a self setting mechanism corresponding to the stroke length of the actuator shaft.

    Abstract translation: 公开了一种用于控制阀的控制器,其包括歧管组件,阀位置指示器和触发器组件。 操作介质分配系统设置在歧管组件中,并且电子控制单元设置在控制器中。 电子控制单元操作至少一个电磁阀以控制经由操作介质分配系统的操作介质流动,以启动打开或关闭阀门的致动器。 触发器组件包括适于容纳致动器轴并提供对应于致动器轴的行程长度的自动调节机构的气缸。

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