Two-stage servo-valve
    41.
    发明授权
    Two-stage servo-valve 失效
    两级伺服阀

    公开(公告)号:US07757714B2

    公开(公告)日:2010-07-20

    申请号:US11664740

    申请日:2005-10-05

    Abstract: A two-stage servo-valve has a first stage in which four flow resistances are arranged in a bridge circuit. At least one of the flow resistances is variable, and two opposite switching points of the bridge circuit are connected to an air inlet and to an air outlet respectively. A differential pressure of variable size and sign is provided between the two other switching points. The servo-valve also has a second stage in which a control piston which can be actuated by the differential pressure is arranged and controls a three-way valve. In order to enable the current position of a process valve driven by the servo-valve to be maintained by the most simple means in the event of a power failure, the switching points which provide the differential pressure are interconnected by a magnetic valve which is closed in the driven state and open in the unconnected state, thus pneumatically interconnecting the switching points.

    Abstract translation: 两级伺服阀具有在桥式电路中布置四个流阻的第一级。 至少一个流动阻力是可变的,并且桥接电路的两个相对的切换点分别连接到空气入口和空气出口。 在另外两个切换点之间提供可变尺寸和符号的压差。 伺服阀还具有第二阶段,其中布置可由差压致动的控制活塞并控制三通阀。 为了在电源故障的情况下通过最简单的手段使由伺服阀驱动的过程阀的当前位置得以保持,提供差压的开关点通过闭合的电磁阀相互连接 处于驱动状态并且在未连接状态下打开,从而气动地互连开关点。

    PARALLEL TYPE VALVE ASSEMBLY
    42.
    发明申请
    PARALLEL TYPE VALVE ASSEMBLY 有权
    并联型阀组件

    公开(公告)号:US20100148101A1

    公开(公告)日:2010-06-17

    申请号:US12618128

    申请日:2009-11-13

    Abstract: Two connected valve units each formed by serially connecting plural electromagnetic valves in a direct abutment state are disposed in parallel between two end blocks. The two end blocks are tightened with plural connecting bolts disposed therebetween so as to directly clamp and fix the two connected valve units from both sides in the serial connection direction of the electromagnetic valves. One of the end blocks is provided with a power supply connector, and the other is provided with an air inlet port and a discharge port.

    Abstract translation: 通过将多个电磁阀以直接邻接状态串联连接形成的两个连接的阀单元并联设置在两个端部块之间。 两个端块用多个设置在其间的连接螺栓紧固,以便在电磁阀的串联方向上从两侧直接夹紧和固定两个连接的阀单元。 一个端块设置有电源连接器,另一个设置有进气口和排出口。

    Multi-way valve
    43.
    发明授权
    Multi-way valve 有权
    多通阀

    公开(公告)号:US07726341B2

    公开(公告)日:2010-06-01

    申请号:US11599768

    申请日:2006-11-15

    CPC classification number: F15B13/043 F16K11/048 Y10T137/86614 Y10T137/8671

    Abstract: A multi-way valve has a housing with a stepped bore forming two piston guiding regions and a shoulder ring with two sealing shoulders. The housing also has a first, second and central transverse bores which are spaced along the cylindrical bore. A contact piston has a piston rod and sealing members secured thereon. The guide members are pressed fit onto opposite ends of the piston rod.

    Abstract translation: 多通阀具有带有阶梯孔的壳体,形成两个活塞导向区域和具有两个密封肩部的肩环。 壳体还具有沿着圆柱孔隔开的第一,第二和中央横向孔。 接触活塞具有固定在其上的活塞杆和密封构件。 引导构件压配合到活塞杆的相对端。

    Manifold-type solenoid valve assembly
    45.
    发明授权
    Manifold-type solenoid valve assembly 有权
    歧管式电磁阀总成

    公开(公告)号:US07591280B2

    公开(公告)日:2009-09-22

    申请号:US11448908

    申请日:2006-06-08

    Abstract: To obtain a manifold type solenoid valve assembly in which an solenoid valve which is equipped with an output port and an solenoid valve which is equipped with no output port are mixed and mounted on a common manifold base. On a valve mounting part of the manifold base which has a plurality of the valve mounting parts of the same type, a first solenoid valve which is equipped with an output port for external piping connection is mounted and a second solenoid valve which is equipped with no output port is indirectly mounted through an intermediate block which is indirectly equipped with an output port for the second solenoid valve.

    Abstract translation: 为了获得配备有输出端口的电磁阀和不具有输出端口的电磁阀的歧管式电磁阀组件,其混合并安装在公共歧管基座上。 在具有多个相同类型的阀安装部件的歧管基座的阀安装部上安装有配备有用于外部管道连接的输出端口的第一电磁阀和配备有第二电磁阀的第二电磁阀 输出口通过间接装配有用于第二电磁阀的输出端口的中间块间接安装。

    Solenoid Actuated Pilot Valve for Irrigation System Valve
    46.
    发明申请
    Solenoid Actuated Pilot Valve for Irrigation System Valve 有权
    用于灌溉系统阀的电磁阀驱动先导阀

    公开(公告)号:US20090120521A1

    公开(公告)日:2009-05-14

    申请号:US12353832

    申请日:2009-01-14

    Abstract: A solenoid actuated pilot valve includes a pilot valve housing defining a pilot valve chamber and a solenoid. The solenoid includes and end cap connected to the pilot valve housing, a reciprocable plunger, and a piston having a shaft with a first end connected to and end of the plunger and a second end connected to a piston head. The end cap has a bore through which the shaft of the piston reciprocates and a first port separate from the bore. A first seal on a first side of the piston head is provided for sealing a first end of the first port. A second seal on a second side of the piston head is provided for sealing a first end of a second port in the pilot valve housing.

    Abstract translation: 电磁致动先导阀包括限定先导阀室和螺线管的先导阀壳体。 螺线管包括连接到先导阀壳体的端帽,可往复运动的活塞和具有连接到柱塞的端部的第一端和连接到活塞头的第二端的轴的活塞。 端盖具有孔,活塞的轴往复运动,第一端口与孔分离。 设置在活塞头的第一侧上的第一密封件用于密封第一端口的第一端。 设置在活塞头第二侧上的第二密封件用于密封先导阀壳体中的第二端口的第一端。

    First-stage pilot valve
    48.
    发明申请
    First-stage pilot valve 失效
    一级先导阀

    公开(公告)号:US20080216902A1

    公开(公告)日:2008-09-11

    申请号:US12072126

    申请日:2008-02-22

    Abstract: A pilot valve configured to provide a control pressure within a dynamic fluid system, the pilot valve comprising: (a) a valve body having a supply port, a return port, and a control pressure port, the pressure control port in fluid communication with a subsequent valving component; (b) an axial bore formed in the valve body and in fluid communication with each of the supply, return, and control pressure ports; (c) a valve spool slidably supported within the axial bore of the valve body, the valve spool configured to control fluid flow through the supply, return, and control pressure ports, and to vary the rate of change of area of at least one of the supply and return pressure ports upon being displaced, thereby providing a variable resistance to fluid flowing therethrough and reducing the quiescent power of the pilot valve; and (d) means for displacing, in a selective manner, the valve spool within the axial bore about the supply, return, and control pressure ports to apportion fluid therethrough to provide a desired control pressure to the subsequent valving component. The pilot valve further comprises a feedback port formed in the valve body and in fluid communication with the control pressure port; and a feedback passage in fluid communication with the feedback port and a portion of the valve spool, the feedback passage configured to receive pressurized fluid therein to act against the valve spool to balance the forces acting on the valve spool from the motor.

    Abstract translation: 一种构造成在动态流体系统内提供控制压力的先导阀,所述先导阀包括:(a)具有供给口,返回端口和控制压力端口的阀体,所述压力控制端口与 随后的阀门部件; (b)形成在阀体中并与供给,返回和控制压力端口中的每一个流体连通的轴向孔; (c)可滑动地支撑在所述阀体的所述轴向孔内的阀阀芯,所述阀芯构造成控制通过所述供给,返回和控制压力端口的流体流动,并且改变至少一个的区域的变化率 供应和返回压力端口被移位,从而对流过其中的流体提供可变阻力,并降低先导阀的静态功率; 和(d)用于以选择的方式在所述轴向孔内围绕所述供给,返回和控制压力端口移动所述阀芯以将流体分配到其中以向随后的阀组件提供期望的控制压力的装置。 先导阀还包括形成在阀体中并与控制压力端口流体连通的反馈端口; 以及反馈通道,其与所述反馈端口和所述阀芯的一部分流体连通,所述反馈通道被配置为在其中接收加压流体以作用于所述阀芯以平衡作用在所述阀芯上的来自所述马达的力。

    Rotary-actuated electro-hydraulic valve
    49.
    发明申请
    Rotary-actuated electro-hydraulic valve 失效
    旋转电动液压阀

    公开(公告)号:US20080149181A1

    公开(公告)日:2008-06-26

    申请号:US11643818

    申请日:2006-12-22

    Abstract: A valve for controlling fluid flow in a fluid system is disclosed. The valve includes a housing, a servo spool, and a piston. The servo spool defines a spiral groove and a spiral land. The piston defines an orifice configured to provide flow communication to a supply of pressurized fluid and an orifice configured to provide flow communication to a portion of the fluid system exterior to the valve. The valve further includes a main spool operably coupled to the piston. The main spool is configured to control flow of fluid in the fluid system. The spiral groove and spiral land are configured such that angular displacement of the servo spool results in a force imbalance on the piston, thereby moving the piston and the main spool in one of a first direction and a second direction.

    Abstract translation: 公开了一种用于控制流体系统中的流体流动的阀。 阀包括壳体,伺服卷轴和活塞。 伺服卷轴限定螺旋槽和螺旋槽。 活塞限定了一个孔口,其构造成提供与加压流体供应的流动连通,以及构造成提供与该阀外部流体系统的一部分的流动连通的孔口。 阀还包括可操作地联接到活塞的主阀芯。 主阀芯被配置为控制流体系统中的流体流动。 螺旋槽和螺旋槽脊构造成使得伺服阀芯的角位移导致活塞上的力不平衡,从而使活塞和主阀芯在第一方向和第二方向中的一个方向上移动。

    Control valve assembly
    50.
    发明申请

    公开(公告)号:US20080092967A1

    公开(公告)日:2008-04-24

    申请号:US11582799

    申请日:2006-10-18

    Inventor: Dale A. Stretch

    CPC classification number: F15B13/0402 F15B13/0401 Y10T137/86614

    Abstract: A control valve assembly includes a valve body having a valve opening, a first pressure passage, a second pressure passage, and a valve body land. A valve member is received in the valve opening for movement between an open position and a closed position. The valve member includes a first valve member land and a second valve member land. The first valve member land and the valve body land cooperate to define a first metering flow passage and a second metering flow passage. The first and second metering flow passages are configured to impart a hydrodynamic force on the valve member during fluid flow through the valve body, which biases the valve member toward the open position or the closed position.

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