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17 条记录 (耗时 0.013 秒)

    Pneumatic amplifier
    1.
    发明授权
    Pneumatic amplifier 失效
    气动放大器

    公开(公告)号：US3994311A

    公开(公告)日：1976-11-30

    申请号：US583059

    申请日：1975-06-02

    申请人： L. Irwin Walle

    发明人： L. Irwin Walle

    IPC分类号： F15C3/04 ,  G05B11/52 ,  G05D16/00

    CPC分类号： G05B11/52 ,  F15C3/04 ,  Y10T137/2278 ,  Y10T137/2365

    摘要： A pneumatic amplifier is disclosed having a body, the body with two opposed heads, a sensor head, and a valve head. An air direction chamber is defined interiorly of the two heads and body, and is separated from the sensing chamber by means of a sealed piston. The piston is actuated at one side by means of back pressure on a jet orifice which is connected to a sensor supply, and the back pressure is translated into a movement of the flexible piston. In the valve chamber, a dart valve is actuated on one end by the piston, and its cone at the other end seats in a valve seat in pneumatic connection with the valve head. The valve head has a signal supply which, when not by-passed through the dart and its associated valve, passes out through a signal tube to actuate a signal device, whether ultimately pneumatic, electric, hydraulic, or other source of power. Optionally a diaphragm type piston is employed. The dart is formed of plastic having three or more vanes, the same seating within an air direction chamber but in loose fit pneumatically suspendable relationship thereto. The valve body also optionally has a manifold which diverts the signal supply to the signal tube responsive to the operation of the dart.

    摘要翻译： 公开了一种气动放大器，其具有主体，主体具有两个相对的头部，传感器头部和阀头。 空气方向室被限定在两个头部和主体的内部，并且通过密封的活塞与感测室分离。 活塞通过连接到传感器电源的喷射孔上的背压在一侧致动，并且背压被转换成柔性活塞的运动。 在阀室中，一个蝶阀在一端由活塞致动，其另一端的锥体位于与阀头气动连接的阀座中。 阀头具有一个信号源，当不经过飞镖及其关联的阀门时，该信号源通过信号管通过以致动信号装置，无论是最终气动的，电动的，液压的还是其它的动力源。 可选地，使用隔膜式活塞。 飞镖由具有三个或更多个叶片的塑料形成，在空气方向室内具有相同的座位，但与松动配合的气动悬挂关系。 阀体还可选地具有歧管，其响应于飞镖的操作而将信号供应转向信号管。

    Pneumatic relay
    3.
    发明授权
    Pneumatic relay 失效
    气动继电器

    公开(公告)号：US3971396A

    公开(公告)日：1976-07-27

    申请号：US596688

    申请日：1975-07-16

    申请人： Louis J. Bentsen

    发明人： Louis J. Bentsen

    IPC分类号： F24F11/02 ,  F24F11/053 ,  G05B11/52 ,  G05D16/00

    CPC分类号： F24F11/02 ,  F24F11/053 ,  G05B11/52 ,  Y10T137/2278

    摘要： A pneumatic apparatus or relay which, in one embodiment, maintains the output pressure at a fixed level until the signal pressure obtains a predetermined value at which time the output pressure varies according to the signal pressure and, in a second embodiment, maintains the output pressure at a first level, which may be essentially zero, until the signal pressure obtains a predetermined value at which time the output pressure assumes a second level until the signal pressure reaches a second predetermined value and then the output pressure varies according to the signal pressure.

    摘要翻译： 一种气动装置或继电器，其在一个实施例中将输出压力保持在固定水平，直到信号压力获得预定值，此时输出压力根据信号压力而变化，并且在第二实施例中，维持输出压力 在第一级，其可以基本为零，直到信号压力获得预定值，此时输出压力呈现第二电平，直到信号压力达到第二预定值，然后输出压力根据信号压力而变化。

    Pneumatically operated pilot relay and system and diverting relay construction utilizing the same or the like
    4.
    发明授权
    Pneumatically operated pilot relay and system and diverting relay construction utilizing the same or the like 失效
    气动操纵的先导继电器和系统以及使用相同的转向继电器结构

    公开(公告)号：US3934613A

    公开(公告)日：1976-01-27

    申请号：US550453

    申请日：1975-02-18

    申请人： Edward N. Caldwell

    发明人： Edward N. Caldwell

    IPC分类号： F15B13/04 ,  G05B11/52 ,  G05D23/00

    CPC分类号： G05B11/52 ,  F15B13/0405 ,  Y10T137/86895

    摘要： A pneumatically operated pilot relay having an outlet for sending a pneumatic pilot output when the pilot relay receives a pneumatic signal of a certain magnitude, the pilot relay having a selector for selecting within limits the magnitude of the pneumatic signal that is required for the pilot relay to produce the pneumatic pilot output. The pilot relay terminates the pneumatic pilot output when the pneumatic signal falls to another certain magnitude, the other certain magnitude being a fixed differential from the selected magnitude thereof. When utilized in a pneumatic control system along with a diverting valve, the pneumatic output from the pilot relay will switch the diverting valve from one operating condition thereof to another operating condition thereof with a snap action and when the pilot output is terminated, the diverting valve switches back from the other operating condition thereof to the one operating condition thereof with a snap action, such snap action being without regard to the rate of change of the input signal.

    摘要翻译： 一种气动先导继电器，当先导继电器接收到一定幅度的气动信号时，具有用于发送气动先导输出的出口，先导继电器具有用于在限制内选择导频继电器所需的气动信号的大小的选择器 以产生气动先导输出。 当气动信号下降到另一个特定的大小时，先导继电器终止气动先导输出，另一个特定的幅度是与选定的大小相当的固定差值。 当在气动控制系统中与转向阀一起使用时，来自先导继电器的气动输出将通过快速动作将转向阀从其一个操作状态切换到其它操作状态，并且当先导输出终止时，转向阀 通过快速动作从其他操作状态切换回其一个操作状态，这种快速动作不考虑输入信号的变化率。

    Use of saturation relay feedback in PID controller tuning
    6.
    发明授权
    Use of saturation relay feedback in PID controller tuning 失效
    在PID控制器调节中使用饱和继电器反馈

    公开(公告)号：US5742503A

    公开(公告)日：1998-04-21

    申请号：US622432

    申请日：1996-03-25

    申请人： Cheng-ching Yu

    发明人： Cheng-ching Yu

    IPC分类号： G05B11/42 ,  G05B11/52 ,  G05B13/04 ,  G05B13/02

    CPC分类号： G05B11/52 ,  G05B11/42 ,  G05B13/042 ,  Y10S706/903 ,  Y10S706/906

    摘要： A method and an apparatus are provided for autotuning a parameter of a PID controller which is employed in a transfer function. The method includes steps of (a) providing a first specific value for the transfer function; (b) computing a first ultimate parameter of the transfer function in response to the first specific value; (c) modifying the first specific value in response to the first ultimate parameter in order to obtain a second specific value; (d) generating a second ultimate parameter for a characteristic of the transfer function in a specified range in response to the second specific value; (e) obtaining a precise parameter of the PID controller in response to the second ultimate parameter. The autotuning apparatus includes; a controlled device outputting a first ultimate parameter and a second ultimate parameter, respectively in response to a first input signal and a second input signal; a nonlinear element connected to the controlled device, and outputting a first specific signal and a second specific signal in response to a first ultimate parameter; and a control unit connected to the nonlinear element, wherein the nonlinear element outputs the second input signal to cause the controlled device to output to the PID controller the second ultimate parameter for a specific characteristic of the controlled device in a specific range in order to obtain a precise parameter for the PID controller.

    摘要翻译： 提供了一种用于自动调节在传递函数中使用的PID控制器的参数的方法和装置。 该方法包括以下步骤：（a）为传递函数提供第一特定值; （b）响应于所述第一特定值计算所述传递函数的第一最终参数; （c）响应于所述第一最终参数修改所述第一特定值以获得第二特定值; （d）响应于所述第二特定值，在特定范围内产生所述传递函数的特性的第二最终参数; （e）响应于所述第二最终参数获得所述PID控制器的精确参数。 自动调谐装置包括： 分别响应于第一输入信号和第二输入信号输出第一最终参数和第二最终参数的受控装置; 连接到受控装置的非线性元件，并且响应于第一最终参数输出第一特定信号和第二特定信号; 以及连接到所述非线性元件的控制单元，其中所述非线性元件输出所述第二输入信号，以使所述受控设备向所述PID控制器输出所述受控设备的特定特性在特定范围内的第二最终参数，以获得 PID控制器的精确参数。

    Pneumatic output signal limiting device
    7.
    发明授权
    Pneumatic output signal limiting device 失效
    气动输出信号限制装置

    公开(公告)号：US3981318A

    公开(公告)日：1976-09-21

    申请号：US546573

    申请日：1975-02-03

    申请人： Robert C. Prescott

    发明人： Robert C. Prescott

    IPC分类号： G05B11/52 ,  G05D16/00

    CPC分类号： G05B11/52 ,  Y10T137/2278 ,  Y10T137/2452

    摘要： A pneumatic output signal limiting device utilizing a planar-type construction having a balance beam with a passage extending through the area of its pivotal axis to provide communication between side-by-side chambers and arranged so that the balance beam moves into contact with a valve in the output chamber to close the passage and further movement in the same direction open a vent. In operation, the output signal equals the input signal when the input signal is within one limit of a preselected output signal operating range. When the input signal equals the limit, the passage is closed and the output signal is maintained equal to the limit. The passage remains closed when the input is outside the limit and the output signal is maintained equal to the limit until the input signal is a preselected value outside the limit. Then the balance beam moves in the same direction to open the vent and reduce the output signal to the vent pressure. The device may be arranged for limiting either the high or the low limit of the preselected output signal operating range.

    摘要翻译： 一种利用平面型结构的气动输出信号限制装置，其具有平衡梁，该平衡梁具有延伸穿过其枢转轴线的区域的通道，以提供并排室之间的连通并且被布置成使得平衡梁移动成与阀 在输出室中关闭通道并沿相同方向进一步移动打开通风口。 在操作中，当输入信号在预选输出信号工作范围的一个限制内时，输出信号等于输入信号。 当输入信号等于极限时，通道关闭，输出信号保持等于极限。 当输入超出限制时，通道保持关闭，并且输出信号保持等于极限，直到输入信号是超出极限的预选值。 然后平衡梁沿相同的方向移动以打开通风口，并将输出信号减小到排气压力。 该装置可以被布置用于限制预选输出信号工作范围的高限或低限。

    Pneumatic control system and pneumatic control device for such a system or the like
    8.
    发明授权
    Pneumatic control system and pneumatic control device for such a system or the like 失效
    气动控制系统和气动控制装置等

    公开(公告)号：US3685789A

    公开(公告)日：1972-08-22

    申请号：US3685789D

    申请日：1970-09-21

    申请人： ROBERTSHAW CONTROLS CO

    发明人： PUSTER LOUIS M ,  CALDWELL EDWARD M

    IPC分类号： G05B11/52 ,  B03D3/00

    CPC分类号： G05B11/52

    摘要： A pneumatic control system having a source of control fluid providing two different control pressure levels for respectively switching the control device of the system from one operating condition thereof to another operating condition thereof, the control device comprising a pair of condition controller means each having a sensor and a bleed-type pneumatic valve operated thereby together with relay means operatively interconnected to the source for directing a branch signal of the control fluid to a pneumatically operated device in relation to a pilot signal directed to a pilot chamber of the relay means by one of the control means. First and second passage means are adapted to respectively interconnect the source to the valves of the control means, a pressure responsive means being disposed in the first passage means for preventing fluid communication therethrough when the source is at one pressure level and permitting fluid communication therethrough when the source is at its other pressure level. A switching means is provided in a third passage means and has one position for interconnecting only the second passage means to the pilot chamber whereby the pilot signal for the relay means is provided only by one of the controller means and having another position for interconnecting only the first passage means to the pilot chamber whereby the pilot signal or relay means is provided only by the other controller means.

    摘要翻译： 一种气动控制系统，其具有提供两个不同控制压力水平的控制流体源，用于分别将系统的控制装置从其一个操作状态切换到其它操作状态，所述控制装置包括一对状态控制装置，每个控制装置具有传感器 以及一个排气式气动阀，由此与可操作地互连到源的继电器装置一起操作，用于将控制流体的分支信号相对于通过以下之一的导向信号引导到气动操作的装置：导向信号 控制装置。 第一和第二通道装置适于将源与控制装置的阀分别互连，压力响应装置设置在第一通道装置中，用于当源处于一个压力水平时防止流体连通，并且允许流体连通通过其中， 来源处于其他压力水平。 切换装置设置在第三通道装置中，并且具有仅将第二通道装置与引导室互连的一个位置，由此用于继电器装置的导频信号仅由控制器装置中的一个提供，并且具有用于仅互连的另一位置 第一通道装置到导向室，由此导频信号或继电器装置仅由另一控制装置提供。