Dual pilot manifold assembly for a safety relief valve
    11.
    发明授权
    Dual pilot manifold assembly for a safety relief valve 失效
    双先导歧管组件,用于安全泄压阀

    公开(公告)号:US5590684A

    公开(公告)日:1997-01-07

    申请号:US523051

    申请日:1995-09-01

    摘要: A manifold assembly 10 for operating a safety relief valve 12 includes a manifold block 60 having a block inlet port 230, a block dome pressure port 232, and a pair of control cavities 220 and 222 each adapted for receiving a pilot valve 70 or auxiliary control member 80. Inlet control valves 74, 84, dome pressure control valves 76, 86, and test control valves 78, 88 are each mounted on the manifold block. One of the pilot valves may be maintained on-line for controlling operation of the safety relief valve, while the other pilot valve may be isolated for service. A cartridge pilot valve assembly 70 includes a bushing 126 for facilitating installation and removal of the cartridge valve assembly from the valve block. An improved metal washer 122 is provided having inner and outer knife edges 330, 334 for sealing engagement between the valve body 110 and the block 60.

    摘要翻译: 用于操作安全泄压阀12的歧管组件10包括具有块入口端口230,块拱顶压力端口232和一对控制腔220和222的歧管块60,每个控制腔220和222适于接收先导阀70或辅助控制 入口控制阀74,84,圆顶压力控制阀76,86和测试控制阀78,88分别安装在歧管块上。 一个先导阀可以在线保持以控制安全释放阀的操作,而另一个先导阀可以被隔离以供使用。 墨盒先导阀组件70包括用于便于从阀块安装和拆卸墨盒阀组件的衬套126。 提供了一种改进的金属垫圈122,其具有用于密封阀体110和块60之间的接合的内和外刀刃330,334。

    Piezoelectric actuated fluid valve
    12.
    发明授权
    Piezoelectric actuated fluid valve 有权
    压电致动流体阀

    公开(公告)号:US09528617B2

    公开(公告)日:2016-12-27

    申请号:US14122485

    申请日:2012-07-03

    摘要: A valve device for influencing a fluid supply of fluid-operated loads, includes a valve module with a valve housing in which valve shafts are formed to accommodate valve cartridges, and further includes valve cartridges located in the valve shafts, wherein each of the valve shafts together with the valve cartridges accommodated therein bounds a pressure chamber connected to an assigned inlet port in a fluidically communicating manner, and wherein each of the valve cartridges includes two electrically selectable valve means which are designed to influence a free flow cross-section between the pressure chamber and an outlet port assigned to the respective valve means.

    摘要翻译: 用于影响流体操作负载的流体供应的阀装置包括具有阀壳体的阀模块,其中形成阀轴以容纳阀芯,并且还包括位于阀轴中的阀芯,其中每个阀轴 与容纳在其中的阀芯一起限定了以流体连通的方式连接到分配的入口端口的压力室,并且其中每个阀芯包括两个电可选阀装置,其被设计成影响压力之间的自由流动横截面 室和分配给相应阀装置的出口。

    HYDRAULIC VALVE FOR USE IN A CONTROL MODULE OF AN AUTOMATIC TRANSMISSION
    13.
    发明申请
    HYDRAULIC VALVE FOR USE IN A CONTROL MODULE OF AN AUTOMATIC TRANSMISSION 有权
    液压阀用于自动变速箱的控制模块

    公开(公告)号:US20120085436A1

    公开(公告)日:2012-04-12

    申请号:US13377628

    申请日:2010-06-22

    IPC分类号: F16K31/00

    摘要: A hydraulic valve assembly (10) adapted to be mounted to a transmission control module (15) and having a valve body (12), a valve bore (16), and at least one pressure supply port (26) as well as at least one pressure control port (28) that establish fluid communication between a source of pressurized fluid and a component to be controlled by the valve assembly. A valve member (18) is supported in the valve bore (16) and is selectively movable between predetermined positions to direct the pressurized fluid between the pressure supply port (26) and the pressure control port (28). In addition, the hydraulic valve assembly (10) includes a biasing mechanism (80, 180, 280, 380) that is responsive to the flow of hydraulic fluid through the valve body to generate a biasing force acting on the valve body (12) in a direction toward the pressure supply port (26).

    摘要翻译: 一种液压阀组件(10),其适于安装到变速器控制模块(15)上并且具有阀体(12),阀孔(16)和至少一个压力供给口(26)以及至少 一个压力控制端口(28),其建立加压流体源和要由阀组件控制的部件之间的流体连通。 阀构件(18)被支撑在阀孔(16)中,并且可选择性地在预定位置之间移动以将加压流体引导到压力供给口(26)和压力控制口(28)之间。 此外,液压阀组件(10)包括偏压机构(80,180,280,380),该偏置机构响应于通过阀体的液压流体的流动,以产生作用在阀体(12)上的偏压力 朝向压力供给口(26)的方向。

    Hydraulic accumulator
    17.
    发明申请
    Hydraulic accumulator 有权
    液压蓄能器

    公开(公告)号:US20040028542A1

    公开(公告)日:2004-02-12

    申请号:US10399857

    申请日:2003-04-23

    发明人: Norbert Weber

    IPC分类号: F04B043/06

    摘要: The invention relates to a hydraulic accumulator, especially a piston accumulator, comprising an accumulator housing (10) and at least one gas chamber (12) and a fluid chamber (14), these being separated from each other by a separating element (16). At least one of these chambers (12, 14) can be filled with a pressure medium or at least partially emptied of the same through at least one valve control unit (26) which has a switching valve (28, 30). The respective switching valve (28) is accommodated in a corresponding valve location (29), and can be moved in the direction of movement of the separating element (16) from an opening position into closing position and vice-versa. The aim of the invention is to avoid an expensive line network between the hydraulic accumulator and the valve control unit, so that sealing or leakage problems such as are common in a line network, never occur, To this end, the valve control unit (26) is accommodated in a valve block (24) which is independent from the housing (10), said valve block (24) has an additional valve location (31) for an additional switching valve (30) for performing another switching task, and the valve locations (29, 31) are configured essentially identically an(l are situated eccentrically in relation to the longitudinal axis (33) of the hydraulic accumulator for modular use of the switching valves (28, 30), which are configured as identical parts.

    摘要翻译: 本发明涉及一种液压蓄能器,特别是活塞蓄能器,其包括蓄能器壳体(10)和至少一个气体室(12)和流体室(14),它们通过分离元件(16)彼此分离, 。 这些腔室(12,14)中的至少一个可以通过具有切换阀(28,30)的至少一个阀控制单元(26)填充有压力介质或者至少部分地被排空。 相应的切换阀(28)容纳在相应的阀位(29)中,并且可以在分离元件(16)从打开位置移动到关闭位置的方向上移动,反之亦然。 本发明的目的是避免液压蓄能器和阀门控制单元之间的昂贵的线路网络,从而不会出现诸如线路网络中常见的密封或泄漏问题。为此,阀控制单元(26 )容纳在与壳体(10)独立的阀块(24)中,所述阀块(24)具有用于执行另一切换任务的附加切换阀(30)的附加阀位置(31),并且 阀位置(29,31)基本上相同地被配置为(l)相对于液压蓄能器的纵向轴线(33)偏心地设置,用于模块化地使用被配置为相同部件的切换阀(28,30)。

    Switching device for a machine
    18.
    发明授权
    Switching device for a machine 失效
    一台机器的切换装置

    公开(公告)号:US06679281B1

    公开(公告)日:2004-01-20

    申请号:US10019084

    申请日:2001-12-26

    IPC分类号: F15B1308

    摘要: A switching device for a machine, especially a digger, has at least one supply connection and one useful connection in addition to at least one hydraulic accumulator. An on-off valve is arranged between the supply connection and the useful connection, and separates the supply connection at least partially from the useful connection in one of its switching positions, in addition to ensuring that the hydraulic accumulator is charged on the fluid side via the supply connection. In another switching position, the supply connection is connected to the useful connection. A substantial improvement relative to conventional switching devices is attained by being able to guarantee an emergency function before the machine is used to perform work.

    摘要翻译: 用于机器,特别是挖掘机的开关装置除了至少一个液压蓄能器之外还具有至少一个供应连接和一个有用的连接。 在供电连接和有用连接之间设置一个开关阀,除了确保液压蓄能器在流体侧经由 供电连接。 在另一个切换位置,供电连接被连接到有用的连接。 通过能够在使用机器进行工作之前确保紧急功能,可以获得相对于传统开关装置的实质性改进。

    Pressure sensor integrated into an electro-hydraulic control unit
    19.
    发明申请
    Pressure sensor integrated into an electro-hydraulic control unit 有权
    压力传感器集成到电液控制单元中

    公开(公告)号:US20020157474A1

    公开(公告)日:2002-10-31

    申请号:US10116743

    申请日:2002-04-03

    IPC分类号: G01L009/00

    摘要: A pressure sensor is mounted integrally in a hydraulic valve body. The sensor has a base which extends into a bore formed in the valve body. The valve body bore is in communication with a pressurized hydraulic fluid. A first circumferential groove formed in the sensor base carries an O-ring which forms a seal between the sensor and the wall of the valve body bore. A second circumferential groove formed in the sensor base carries a spring ring which extends into a corresponding groove formed in the wall of the valve body groove. The spring ring cooperates with the sensor base and valve body bore grooves to retain the sensor in the valve body bore.

    摘要翻译: 压力传感器一体地安装在液压阀体中。 传感器具有延伸到形成在阀体中的孔中的基座。 阀体孔与加压液压流体连通。 形成在传感器基座中的第一圆周槽承载O形环,O形环在传感器和阀体孔的壁之间形成密封。 形成在传感器基座中的第二圆周槽承载弹簧环,弹簧环延伸到形成在阀体凹槽的壁中的相应凹槽中。 弹簧环与传感器基座和阀体孔槽配合,将传感器保持在阀体孔中。

    Actuation system for a controllable pitch propeller
    20.
    发明授权
    Actuation system for a controllable pitch propeller 失效
    可调桨距螺旋桨的致动系统

    公开(公告)号:US06261062B1

    公开(公告)日:2001-07-17

    申请号:US09483845

    申请日:2000-01-17

    IPC分类号: B63H106

    摘要: A controllable pitch propeller device is provided with a pitch locking system that prevents a controllable pitch propeller blade from being inadvertently forced to an extreme end of travel in the event that hydraulic pressure is lost in either of two conduits or as a result of a pump failure. The hydraulic pressure in each of two conduits is used to overcome a check valve in the opposite conduit to allow return hydraulic fluid flow through that opposite conduit. In the event of a loss of hydraulic pressure, the pressure needed to overcome the check valve is absent and the check valve operates normally to block return flow to a source of hydraulic pressure, such as a pump. This blockage of return flow, in turn, prevents a hydraulically responsive element, such as a piston, from moving subsequent to the loss of pressure.

    摘要翻译: 可调桨距螺旋桨装置设有俯仰锁定系统,该系统防止在两个管道中的任何一个或由于泵故障引起液压损失的情况下,可控桨距螺旋桨叶片被无意地强制到行程的最终端 。 两个管道中的每一个中的液压用于克服相对管道中的止回阀,以允许液压流体返回通过相对的管道。 在液压损失的情况下,克服止回阀所需的压力不存在,并且止回阀正常运行以阻止回到液压源的回流,例如泵。 这种返回流动的阻塞又防止液压响应元件(例如活塞)在压力损失之后移动。