Proportional valve assembly
    1.
    发明授权
    Proportional valve assembly 有权
    比例阀组件

    公开(公告)号:US08291934B2

    公开(公告)日:2012-10-23

    申请号:US12690724

    申请日:2010-01-20

    Abstract: A valve assembly includes a valve housing defining a service passage, a first bore in fluid communication with the service passage, a first passage, a second bore in communication with the service passage and a second passage. The first bore has an inlet portion, a first service portion in communication with the service passage, and a first load holding portion. The first passage is in communication with the first load holding portion and the service passage. The second bore has a return portion, a second service portion in fluid communication with the first service passage, and a second load holding portion. The second passage is in selective communication with the second load holding portion of the second bore and the return passage. A valve is disposed in the second passage. The valve allows fluid to flow only in a direction from the second load holding portion to the return passage.

    Abstract translation: 阀组件包括限定服务通道的阀壳体,与服务通道流体连通的第一孔,第一通道,与服务通道连通的第二孔和第二通道。 第一孔具有入口部分,与服务通道连通的第一服务部分和第一负载保持部分。 第一通道与第一负载保持部分和服务通道连通。 第二孔具有返回部分,与第一服务通道流体连通的第二服务部分和第二负载保持部分。 第二通道与第二孔的第二负载保持部分和返回通道选择性连通。 阀设置在第二通道中。 阀允许流体仅在从第二负载保持部分到返回通道的方向上流动。

    Pressure control valve having an asymmetric valving structure
    2.
    发明授权
    Pressure control valve having an asymmetric valving structure 有权
    具有不对称阀结构的压力控制阀

    公开(公告)号:US07779863B2

    公开(公告)日:2010-08-24

    申请号:US11824540

    申请日:2007-06-29

    Abstract: The present invention describes, generally, a method and system for controlling the dynamics of an actuatable load functioning or operable within a servo or servo-type system, wherein the dynamics of the load are controlled by way of a unique asymmetric pressure control valve configured to provide intrinsic pressure regulation. The asymmetric pressure control valve, which may be referred to as a dynamic pressure regulator because of its capabilities, utilizes different sized free floating spools that are physically independent of one another and freely supported in interior cavities of respective corresponding different sized valving components that make up the valve body to regulate the pressures acting within the overall system between the control or pilot pressure and the load or load pressure. The dual spools of the pressure control valve, although physically independent of one another, function in cooperation with one another in an attempt to maintain a state of equilibrium in the system, namely to keep pressure acting on or within the actuator (the load pressure), or the feedback pressure corresponding to the load pressure, the same as the control or pilot pressure. Moreover, pressure regulation and control is intrinsic to the asymmetric pressure control valve because of the configuration and function of the dual spools and the feedback system acting on the spools, thus eliminating the need for electronically or mechanically user controlled systems.

    Abstract translation: 本发明总体上描述了一种用于控制在伺服或伺服型系统中起作用或可操作的可致动负载的动力学的方法和系统,其中负载的动力学通过独特的非对称压力控制阀来控制, 提供内在的压力调节。 不对称压力控制阀由于其功能而被称为动态压力调节器,它利用不同尺寸的自由浮动阀芯,它们在物理上彼此独立并且自由地支撑在组成相应不同尺寸阀门部件的内腔中 阀体调节在整个系统内作用于控制或先导压力与负载或负载压力之间的压力。 压力控制阀的双线轴虽然在物理上彼此独立,但彼此配合起作用,以维持系统中的平衡状态,即保持作用在致动器上或其内的压力(负载压力) ,或与负载压力相对应的反馈压力,与控制或先导压力相同。 此外,由于双线轴和作用在线轴上的反馈系统的配置和功能,压力调节和控制对于非对称压力控制阀是固有的,因此无需电子或机械用户控制的系统。

    Lift axle control module
    3.
    发明授权
    Lift axle control module 有权
    提升车轴控制模块

    公开(公告)号:US07735516B2

    公开(公告)日:2010-06-15

    申请号:US11623005

    申请日:2007-01-12

    Applicant: John M. Morris

    Inventor: John M. Morris

    Abstract: A lift axle control module is disclosed that is simpler than prior art lift axle control systems, and does not require cycling the input pressure to the regulator. The module includes a housing fluidly connected to a first pressurized air supply and having one chamber with a load bladder port, a second chamber with a lift bladder port, and a common vent port. A pilot pressure is selectively provided for switching the module between the retracted and deployed modes. When the control module is set to the retracted mode, the lift bladders are pressurized to the system pressure, and the load bladders are vented. When the control module is set to the deployed mode, the lift bladders are vented and the load bladders are inflated and maintained at the regulated pressure.

    Abstract translation: 公开了一种比现有技术的升降机轴控制系统简单的提升车轴控制模块,并且不需要将输入压力循环到调节器。 模块包括流体连接到第一加压空气源并且具有带有负载气囊端口的一个室的壳体,具有提升气囊端口的第二室和公共排放口。 选择性地提供先导压力用于在缩回和展开模式之间切换模块。 当控制模块设置为缩回模式时,电梯气囊被加压到系统压力,并且负载气囊被排出。 当控制模块设置为展开模式时,电梯气囊被排空,负载气囊膨胀并保持在调节压力。

    Vacuum pressure generator circuit with non-volitile memory function
    5.
    发明授权
    Vacuum pressure generator circuit with non-volitile memory function 有权
    具有非挥发性记忆功能的真空压力发生器电路

    公开(公告)号:US06443175B1

    公开(公告)日:2002-09-03

    申请号:US09616425

    申请日:2000-07-14

    Inventor: William V. Pabst

    Abstract: The present invention is a pressure feedback circuit for use with a vacuum pressure control circuit. The pressure feedback circuit detects the occurrence of, and controls the generation of vacuum pressure under, External Override Conditions (“EOCs”). During EOCs, which typically include emergency stop conditions or loss of electrical power to the vacuum pressure circuit, the pressure feedback circuit senses the condition of the output vacuum pressure port and supplies feedback to the vacuum pressure control circuit thereby maintaining the last output state of the vacuum pressure control circuit.

    Abstract translation: 本发明是与真空压力控制电路一起使用的压力反馈电路。 压力反馈电路检测外部超驰条件(“EOC”)下的真空压力的产生和控制。 在通常包括紧急停止条件或真空压力回路的电力损失的EOC期间,压力反馈电路感测输出真空压力端口的状况并将反馈提供给真空压力控制电路,由此保持最终的输出状态 真空压力控制电路。

    Valve assembly
    6.
    发明授权
    Valve assembly 失效
    阀组件

    公开(公告)号:US06311947B1

    公开(公告)日:2001-11-06

    申请号:US09587009

    申请日:2000-06-05

    Abstract: An on/off valve (O/OV) and directional valves (DV1, DV2) are packaged with a switching valve system (10) in a housing assembly (156, 157, 158, 160). The on/off valve (O/OV) is operated by a control handle (154) that is located at one end of the housing assembly (156, 157, 158, 160). The direction control valves (DV1, DV2) are operated by a handle (141) located at the opposite end of the housing assembly (156, 157, 158, 160). The control handles (154, 141) operate to position cams (152, 136, 138) which function to help position valve plugs. In a second embodiment, the handle (141) and cams (136, 138) for controlling the directional valves (DV1, DV2) are replaced by a solenoid valve system (SV2) . A second solenoid valve (SV1) is added to the control system for the off/on valve (O/OV). The solenoid valve (SV1, SV2) allow for a remote positioning of the controls for the off/on and directional valves (O/OV, DV1, DV2). The handles and cams (141, 154, 136, 138, 152) provide for a compact positioning of the controls at one location requiring utilization of a single compact valve housing assembly (156, 157, 158, 160).

    Abstract translation: 开关阀(O / OV)和方向阀(DV1,DV2)与壳体组件(156,157,158,160)中的切换阀系统(10)一起被包装。 开/关阀(O / OV)由位于壳体组件(156,157,158,160)的一端的控制手柄(154)操作。 方向控制阀(DV1,DV2)由位于壳体组件(156,157,158,160)的相对端的把手(141)操作。 控制手柄(154,141)操作以定位用于帮助定位阀塞的凸轮(152,136,138)。 在第二实施例中,用于控制方向阀(DV1,DV2)的把手(141)和凸轮(136,138)由电磁阀系统(SV2)代替。 第二个电磁阀(SV1)被添加到关闭/关闭阀(O / OV)的控制系统中。 电磁阀(SV1,SV2)允许远程定位关闭/关闭和定向阀(O / OV,DV1,DV2)的控制。 手柄和凸轮(141,154,136,138,152)提供了在一个位置处的控制器的紧凑定位,需要使用单个紧凑的阀壳体组件(156,157,158,160)。

    Working cylinder, switch valve and pressure-actuated working unit

    公开(公告)号:US06276257B1

    公开(公告)日:2001-08-21

    申请号:US09366725

    申请日:1999-08-04

    Abstract: A working cylinder (A) having at least one working chamber (6, 7) defined by the cylinder barrel (1), at least one of the end sections (2, 3) and a piston (4), at least one supply port (9a, 9b) and a exhaust port (12a, 12b) for the working medium. The exhaust port (12a, 12b) has a valve (13a, 13b) that may be regulated by the pressure of the working medium, which is applied at the supply port (9a, 9b) in order to obtain a smaller dimension of at least the valve and to better utilize the already existing space, specifically within the cylinder, and to better and more efficiently adjust the output capacity of the individual elements. A valve (V), particularly a switch valve (W) of a rocker valve design has therefore at least one inlet (16) and at least one outlet (17a, 17b) for the working medium, as wells as at least one control port (18). The cylinder is characterized by a discharge channel (19, 19a; 38a, 38b) for the working medium, originating from a location between the valve element (15; 31, 33) of the valve and at least one outlet (17a, 17b), whereby this discharge channel has a discharge or exhaust valve (20, 22; 36a, 36b), which may be regulated electrically or by the pressure applied to the control port. The pressure-actuated working unit comprises a pneumatic working cylinder (A) with exhaust valves (27a, 27b), a valve (V, W) and exhaust control valves (24a, 24b; 30) as well as only one pressure line (29a, 29b) to each working chamber (6, 7) in the cylinder (A).

    Automated process gas supply system for evacuating a process line
    8.
    发明授权
    Automated process gas supply system for evacuating a process line 失效
    自动化工艺气体供应系统,用于疏散生产线

    公开(公告)号:US5601107A

    公开(公告)日:1997-02-11

    申请号:US444329

    申请日:1995-05-18

    Abstract: A process gas supply system at the gas supply point includes an automated means for evacuating gas in a process line fed by the process gas supply system when an abnormal event occurs. The process gas supply system of this invention eliminates the need for any special valves or piping at the point of use of the process gas as well as the need for a return line from the point of use to the process gas supply system to purge the process line. A process gas is contained in a cylinder under pressure. The cylinder is coupled to a process line by the process gas supply system. The process gas supply system includes a gas flow controller and an automatic evacuation system. The gas flow controller controls the supply of the process gas from the cylinder to the process line. In an abnormal event, process gas flow from the cylinder is blocked by the gas flow controller and the automatic evacuation system evacuates the process gas not only from the gas flow controller, but also from the process line.

    Abstract translation: 在气体供给点处的工艺气体供给系统包括用于在发生异常事件时由处理气体供应系统供给的处理线中排出气体的自动化装置。 本发明的工艺气体供应系统消除了在工艺气体的使用点处需要任何特殊的阀门或管道以及从使用点到工艺气体供应系统的返回管线的需要,以清除过程 线。 处理气体在压力下容纳在气缸中。 气缸通过工艺气体供应系统连接到工艺管线。 过程气体供应系统包括气体流量控制器和自动排空系统。 气体流量控制器控制从气缸到生产线的处理气体的供应。 在异常情况下,来自气缸的工艺气体流量被气体流量控制器阻挡,并且自动排气系统不仅从气体流量控制器排出处理气体,而且从处理管线排出处理气体。

    Automated process gas supply system for evacuating a process line
    9.
    发明授权
    Automated process gas supply system for evacuating a process line 失效
    自动化工艺气体供应系统,用于疏散生产线

    公开(公告)号:US5417236A

    公开(公告)日:1995-05-23

    申请号:US109191

    申请日:1993-08-19

    Abstract: A process gas supply system at the gas supply point includes an automated means for evacuating gas in a process line fed by the process gas supply system when an abnormal event occurs. The process gas supply system of this invention eliminates the need for any special valves or piping at the point of use of the process gas as well as the need for a return line from the point of use to the process gas supply system to purge the process line. A process gas is contained in a cylinder under pressure. The cylinder is coupled to a process line by the process gas supply system. The process gas supply system includes a gas flow controller and an automatic evacuation system. The gas flow controller controls the supply of the process gas from the cylinder to the process line. In an abnormal event, process gas flow from the cylinder is blocked by the gas flow controller and the automatic evacuation system evacuates the process gas not only from the gas flow controller, but also from the process line.

    Abstract translation: 在气体供给点处的工艺气体供给系统包括用于在发生异常事件时由处理气体供应系统供给的处理线中排出气体的自动化装置。 本发明的工艺气体供应系统消除了在工艺气体的使用点处需要任何特殊的阀门或管道以及从使用点到工艺气体供应系统的返回管线的需要,以清除过程 线。 处理气体在压力下容纳在气缸中。 气缸通过工艺气体供应系统连接到工艺管线。 过程气体供应系统包括气体流量控制器和自动排空系统。 气体流量控制器控制从气缸到生产线的处理气体的供应。 在异常情况下,来自气缸的工艺气体流量被气体流量控制器阻挡,并且自动排气系统不仅从气体流量控制器排出处理气体,而且从处理管线排出处理气体。

    Supply circuit for a two-tube hydraulic system
    10.
    发明授权
    Supply circuit for a two-tube hydraulic system 失效
    双管液压系统供电电路

    公开(公告)号:US5280807A

    公开(公告)日:1994-01-25

    申请号:US968497

    申请日:1992-10-29

    Abstract: A supply circuit for a hydraulic fluid system has at least one pressure generation device, at least one connecting valve, a main line and a safety deactivation unit. The supply circuit permits a hydraulic fluid to be fed in such a way that, in all operating states, occurrence of pressure surges in the system is prevented. The connecting valve is designed as a slide valve with three control edges for regulating filling, operation and testing functions. A plate valve, in fluid communication with the slide control valve, is designed as an outflow amplifier and fulfills the safety related tasks.

    Abstract translation: 用于液压流体系统的供应回路具有至少一个压力产生装置,至少一个连接阀,主管线和安全停用单元。 供应回路允许液压流体以这样的方式进给,即在所有操作状态下,防止系统中发生压力波动。 连接阀设计为具有三个控制边缘的滑阀,用于调节灌装,操作和测试功能。 与滑动控制阀流体连通的平板阀被设计为流出放大器并满足安全相关任务。

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