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29 条记录 (耗时 0.016 秒)

    Electropneumatic positioner
    11.
    发明授权
    Electropneumatic positioner 有权
    电动气动定位器

    公开(公告)号：US5931180A

    公开(公告)日：1999-08-03

    申请号：US162410

    申请日：1998-09-29

    申请人： Fumio Nagasaka

    发明人： Fumio Nagasaka

    IPC分类号： F16K31/04 ,  F15B9/07 ,  F16K37/00 ,  G05B19/19 ,  G05B19/23 ,  G05B11/48

    CPC分类号： G05B19/19 ,  G05B19/234 ,  Y10T137/2409 ,  Y10T137/7761

    摘要： An electropneumatic positioner includes a data processing control section and an electropneumatic converter. The control section includes first and second position determining sections and a signal setting section. The first position determining section obtains the valve opening degree positions of a regulating valve as the minimum and maximum valve opening degree positions which are set when a driving signal for conversion from an electrical signal into an air pressure is set to the minimum signal and the maximum signal. The second position determining section obtains the valve opening degree position of the valve which is set when the driving signal is the minimum signal on the basis of the relative positional relationship between the obtained minimum and maximum valve opening degree positions and the valve plug form of the valve. The signal setting section sets a relationship between the maximum and minimum signals of electrical signals and full opening and closing directions corresponding to valve opening degrees of the valve.

    摘要翻译： 电动气动定位器包括数据处理控制部分和电动气动转换器。 控制部分包括第一和第二位置确定部分和信号设置部分。 第一位置确定部分获得调节阀的阀开度位置作为当从电信号转换为空气压力的驱动信号被设置为最小信号和最大值时设置的最小和最大阀开度位置 信号。 第二位置确定部分获得当基于获得的最小和最大阀开度位置与阀塞形式之间的相对位置关系在驱动信号是最小信号时设定的阀的阀开度位置 阀。 信号设定部设定与阀的阀开度对应的电信号的最大信号和最小信号以及全开关方向之间的关系。

    Smart valve positioner
    12.
    发明授权
    Smart valve positioner 失效
    智能阀门定位器

    公开(公告)号：US5431182A

    公开(公告)日：1995-07-11

    申请号：US230492

    申请日：1994-04-20

    申请人： Gregory C. Brown

    发明人： Gregory C. Brown

    IPC分类号： F16K31/126 ,  F16K37/00 ,  G05B6/05 ,  G05B19/414 ,  G05D3/12 ,  G05D7/00 ,  G05B11/48

    CPC分类号： G05B19/4142 ,  F16K37/0083 ,  F16K37/0091 ,  G05B6/05 ,  G05B2219/34309 ,  Y10T137/2409 ,  Y10T137/7761

    摘要： A valve positioner controls operation of a valve in a process control system. The valve positioner is coupled to a process control loop over which it receives a signal representative of a desired valve position and operating power for the positioner. The valve positioner controls a pneumatic actuator which in turn controls position of the valve. The valve positioner includes a microprocessor, associated digital circuitry and analog circuitry. Low power analog circuitry performs PID control functions. The microprocessor periodically updates at least one digital control signal used to selectively program a resistance in the analog circuitry. The combination of digital and analog circuitry allows reduced power consumption because the analog PID function consumes less power and is performed more quickly than the microprocess could perform the same function.

    摘要翻译： 阀定位器控制过程控制系统中的阀的操作。 阀定位器联接到过程控制回路，在该过程控制回路上，阀定位器接收代表期望的阀位置的信号和用于定位器的操作功率。 阀定位器控制气动致动器，气动执行器又控制阀的位置。 阀定位器包括微处理器，相关的数字电路和模拟电路。 低功耗模拟电路执行PID控制功能。 微处理器周期性地更新用于选择性地编程模拟电路中的电阻的至少一个数字控制信号。 数字和模拟电路的组合允许降低功耗，因为模拟PID功能消耗更少的功率，并且比微处理器可以执行相同的功能执行得更快。

    Pneumatic pressure control valve
    13.
    发明授权
    Pneumatic pressure control valve 失效
    气动压力控制阀

    公开(公告)号：US4131130A

    公开(公告)日：1978-12-26

    申请号：US816837

    申请日：1977-07-18

    申请人： Joseph H. Ruby

    发明人： Joseph H. Ruby

    IPC分类号： F15B13/043 ,  F15C3/14 ,  G05B11/48 ,  F16K11/14

    CPC分类号： F15B13/0438 ,  F15C3/14 ,  Y10T137/2278 ,  Y10T137/86614 ,  Y10T137/87217

    摘要： A pneumatic control valve of the flapper type for controlling the resultant pneumatic pressure within a chamber from two sources of pressure in proportion to an electrical control signal is disclosed, wherein two flappers, one associated with a nozzle connected with one of said sources and the other associated with a nozzle connected with the other thereof, are resiliently coupled to a common electrically actuated armature such that at least at extreme controlled pressure rates, the resilient coupling permits one flapper to close its nozzle while permitting the other to continue to control the pressure rate from the other nozzle whereby to permit reducing the flapper-nozzle gap and to enlarge the nozzle area resulting in a very high valve gain and at the same time reducing quiescent pneumatic mass flow and increasing the transient pneumatic mass flow capability through said valve.

    摘要翻译： 公开了一种用于从两个压力源与电控制信号成比例地控制室内产生的气动压力的挡板式气动控制阀，其中两个襟翼与一个与所述源中的一个连接的喷嘴相连， 与其另一个连接的喷嘴相关联地弹性地联接到共同的电动致动衔铁，使得至少在极端受控的压力速率下，弹性联接允许一个挡板关闭其喷嘴，同时允许另一个挡板继续控制压力速率 从而允许减小挡板喷嘴间隙并且扩大喷嘴面积，从而产生非常高的阀增益，同时减少静态气动质量流量并增加通过所述阀的瞬时气动质量流量能力。

    Condition responsive para-meter control means
    14.
    发明授权
    Condition responsive para-meter control means 失效
    条件反应式仪表控制装置

    公开(公告)号：US3801006A

    公开(公告)日：1974-04-02

    申请号：US3801006D

    申请日：1972-11-06

    申请人： ROBERTSHAW CONTROLS CO

    发明人： KREUTER K ,  MUELLER K

    IPC分类号： F15C3/00 ,  F24F11/00 ,  G05D16/06 ,  G05B11/48 ,  G05D23/275

    CPC分类号： F15C3/00 ,  F24F11/00 ,  F24F11/30 ,  F24F11/84 ,  F24F2110/10 ,  F24F2221/54 ,  G05D16/0672

    摘要： A unitary, multiple diaphragm structure is provided which includes integral valve means and flow passages, the structure being substantially entirely composed of a flexible resilient material. Additional rigid inserts are integrally molded into the basic structure to provide additional valving and seating arrangements for desired functional adaptability. The diaphragm structure is combined with hollow housing structures comprised of stacked plates or the like for mounting the peripheral portions of the multiple diaphragms of the unitary structure. Selective porting and pressure connections in the housing structures effect a family of differential pressure responsive modules or devices such as relays, comparators, and the like. A simplified temperature to pressure transducer is provided in which a compound bimetal spring selectively retains a spherical valve in an exhaust port to provide a modulated pressure output as a function of temperature changes. The transducer and family of differential pressure responsive modules are combined to provide a plurality of parameter control systems having a wide variety of operating modes. Several of the systems are convertible from one operating mode to another by merely changing the supply pressure magnitudes. The transducer is characterized by the fact that it requires no changeover adjustment to adapt it to the multiple modes of the systems.

    摘要翻译： 提供了一体的多隔膜结构，其包括一体的阀装置和流动通道，该结构基本上完全由柔性弹性材料构成。 额外的刚性插入件一体地模制到基本结构中以提供额外的阀门和座椅布置以实现所需的功能适应性。 隔膜结构与由堆叠板等组成的中空壳体结构组合，用于安装整体结构的多个隔膜的周边部分。 壳体结构中的选择性端口和压力连接影响一系列压差响应模块或诸如继电器，比较器等的装置。 提供了一种简化的温度 - 压力传感器，其中复合双金属弹簧选择性地将球形阀保持在排气口中，以提供作为温度变化的函数的调制压力输出。 传感器和差压响应模块系列被组合以提供具有各种操作模式的多个参数控制系统。 几个系统可以通过仅改变供应压力幅度从一种操作模式转换到另一种操作模式。 传感器的特征在于其不需要转换调节以使其适应于系统的多种模式。

    Current to pressure converter
    19.
    发明授权
    Current to pressure converter 失效
    电流到压力转换器

    公开(公告)号：US6079435A

    公开(公告)日：2000-06-27

    申请号：US206417

    申请日：1998-07-28

    申请人： Hartmut Franz ,  Rolf Siebart ,  Richard W. Kalinoski

    发明人： Hartmut Franz ,  Rolf Siebart ,  Richard W. Kalinoski

    IPC分类号： G05D16/20 ,  F15B13/044 ,  G05B11/48

    CPC分类号： G05D16/2013

    摘要： An electropneumatic motor includes an electrically energizable magnetic circuit with an armature resiliently suspended in the air gap defined between two opposed pole pieces of differing dimensions. One of pole pieces includes an axially adjustable member of magnetic material. A fluid nozzle is carried by the other pole piece. Axial adjustment of the pole piece member affects the strength of the magnetic field. In one embodiment, the pole piece member includes a permanent magnet, which is axially movable relative to the armature, centered in the face of the pole piece. The combination of the fixed field from the permanent magnet and the electromagnetically induced variable field helps more nearly linearize the current to armature force relationship and increases the force on the armature. To determine the operating point of the motor, the suspension for the armature can be prestressed to force it as close as possible to the nozzle, and the magnet can be advanced until the armature is pulled off of the nozzle.

    摘要翻译： 一种电动气动马达包括一个电可激励磁路，其电枢弹性地悬挂在限定在两个不同尺寸的相对极片之间的气隙中。 磁极片之一包括可轴向调节的磁性材料构件。 流体喷嘴由另一个极靴承载。 极片构件的轴向调整影响磁场的强度。 在一个实施例中，极片构件包括能够相对于电枢轴向移动的永磁体，该电枢位于极片的正面。 来自永磁体的固定磁场和电磁感应可变磁场的组合有助于使电流近似线性化到电枢力关系，并增加电枢上的力。 为了确定电动机的工作点，可以对电枢的悬架进行预应力以迫使其尽可能靠近喷嘴，并且可以推进磁体，直到电枢从喷嘴拉出。

    Electric vacuum regulator valve
    20.
    发明授权
    Electric vacuum regulator valve 失效
    电动真空调节阀

    公开(公告)号：US5967172A

    公开(公告)日：1999-10-19

    申请号：US66131

    申请日：1998-04-24

    申请人： John E. Cook

    发明人： John E. Cook

    IPC分类号： G05D16/20 ,  G05B11/48

    CPC分类号： G05D16/2013 ,  Y10T137/2278

    摘要： An electric vacuum regulator has an enclosure containing an interior space and a solenoid assembly. An inlet port communicates the interior space to source vacuum. Vacuum communicated to the interior space is vented through a filter to atmosphere. Regulated vacuum is provided through an outlet port. A valve mechanism operated by the solenoid assembly selectively vents vacuum from the inlet port to the vent port and thereby creates regulated vacuum at the outlet port. The valve mechanism includes a valve element and a seat element. The latter has a continuous annular seat surface which circumscribes a vent path from the interior space to atmosphere that is opened and closed by the valve element, and a further surface which is disposed radially outward of the seat surface and against which the valve element also seats when closing the vent path. A groove that separates the further surface from the seat surface is vented to the interior space by through-holes in the valve element.

    摘要翻译： 电真空调节器具有包含内部空间和螺线管组件的外壳。 入口端口将内部空间连通到源真空。 传递到内部空间的真空通过过滤器排放到大气中。 通过出口提供调节真空。 由螺线管组件操作的阀机构选择性地从入口端口排出到排气口，从而在出口处产生调节的真空。 阀机构包括阀元件和座元件。 后者具有连续的环形座表面，其环绕从内部空间到被阀元件打开和关闭的大气的通气路径，以及另外的表面，其设置在座表面的径向外侧，阀元件也位于 关闭排气通道时。 将另一个表面与座面分开的凹槽通过阀元件中的通孔而被排放到内部空间。