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16 条记录 (耗时 0.011 秒)

    Solenoid valve
    2.
    发明公开
    Solenoid valve 失效
    Magnetventil。

    公开(公告)号：EP0289337A2

    公开(公告)日：1988-11-02

    申请号：EP88303911.7

    申请日：1988-04-29

    申请人： AlliedSignal Inc.

    发明人： Abel, Stephen G.

    IPC分类号： F15B13/044 ,  F16K31/06 ,  F15B9/09

    CPC分类号： F16K31/0693 ,  F16K31/0665 ,  Y10T137/2452 ,  Y10T137/86919 ,  Y10T137/87217 ,  Y10T137/87225

    摘要： A two way closed-centre solenoid valve apparatus comprising a housing (32) defining a flow path interconnecting an inlet port (16), an outlet port (50) and a vent port (72) and a valve (14) in the flow path. In a first position, the valve (14) closes communication from the inlet port (16) to both the outlet port (5) and the vent port (72); in a second position the valve opens communication between the inlet port (16) and only the outlet port (50), and in a third position it opens communication between the outlet port (5) and only the vent port (72). The valve (14) defines a predetermined sealing area upon which fluid pressure is effective to urge the valve from the fluid position towards one of the second and third positions. The apparatus includes input means (80-92) for selectively moving the valve from the first position alternatively to either one of the second and third positions. The apparatus also includes feedback means having a first feedback area (128) significantly exceeding the predetermined sealing area and arranged to urge movement of the valve means from either the second or the third position towards the first position in response to fluid pressure effective thereon, and means (124) communicating fluid pressure from the outlet port to the first feedback area (128) as a first time derivative of the fluid pressure level at the outlet port to act upon the first feedback area.

    摘要翻译： 一种双向闭合中心电磁阀装置，包括限定将入口端口（16），出口端口（50）和通气口（72）互连的流路的壳体（32）和流路中的阀（14） 。 在第一位置，阀（14）封闭从入口（16）到出口（5）和通气口（72）的连通。 在第二位置，阀打开入口（16）和仅出口（50）之间的连通，并且在第三位置，它打开出口（5）和排气口（72）之间的连通。 阀（14）限定预定的密封区域，流体压力有效地将阀从流体位置推向第二和第三位置之一。 该装置包括用于选择性地将阀从第一位置移动到第二和第三位置中的任一个的输入装置（80-92）。 该装置还包括具有显着超过预定密封区域的第一反馈区域（128）的反馈装置，并且被布置成响应于在其上有效的流体压力促使阀装置从第二或第三位置朝向第一位置的运动;以及 将出口端口处的流体压力与第一反馈区域（128）连通的装置（124），作为出口端口处的流体压力水平的第一时间导数作用于第一反馈区域。

    Valve positioner with pressure feedback, dynamic correction and diagnostics
    4.
    发明公开
    Valve positioner with pressure feedback, dynamic correction and diagnostics 失效
    Ventil-Steller mit Druckfeedback，dynamischer Korrektur- und Diagnose-Einrichtung

    公开(公告)号：EP0957418A2

    公开(公告)日：1999-11-17

    申请号：EP99202230.1

    申请日：1994-07-14

    申请人： ROSEMOUNT INC.

    发明人： Lenz, Gary A. ,  Brown, Gregory C. ,  Warrior, Jogesh

    IPC分类号： G05D16/00

    CPC分类号： G05D7/005 ,  F16K31/1262 ,  F16K37/0083 ,  Y10T137/2452 ,  Y10T137/7759 ,  Y10T137/7761

    摘要： In this invention, a valve positioner (50) receives a setpoint from a master (62) and provides a control pressure to a valve actuator (70) for controlling a valve (72). A sensing circuit (102) in the positioner (50) senses the position of the valve (72) and the control pressure, and a control circuit (94) in the positioner (50) uses both the sensed pressure and position to provide a command output to a pneumatic section (100) which produces the control pressure.

    摘要翻译： 在本发明中，阀定位器（50）从主机（62）接收设定值，并向控制阀（72）的阀致动器（70）提供控制压力。 定位器（50）中的检测电路（102）感测阀（72）的位置和控制压力，并且定位器（50）中的控制电路（94）使用感测到的压力和位置来提供指令 输出到产生控制压力的气动部分（100）。

    Vacuum signal regulator
    9.
    发明公开
    Vacuum signal regulator 失效
    真空信号调节器

    公开(公告)号：EP0072133A3

    公开(公告)日：1985-05-15

    申请号：EP82303908

    申请日：1982-07-23

    申请人： EATON CORPORATION

    发明人： Kenny, Andrew Augustine

    IPC分类号： G06G05/00

    CPC分类号： G06G5/00 ,  F02B3/06 ,  Y10T137/2409 ,  Y10T137/2452

    摘要： A Vacuum Signal Integrator (10) is typically employed for processing and combining multiple vacuum input signals into a single output signal within the environment of a truck or automobile. The integrator, in a typical application, would input vacuum signals representative of throttle position, RPM, altitude and coolant temperature and output a vacuum signal equivalent to the algebraic sum thereof to modulate a diesel EGR valve. Structurally, the integrator includes a housing (11) carrying several conventional vacuum motors (32, 34 and 36). Each vacuum motor applies a force to an idler bar (68) within the housing through reaction inserts (62, 94 and 96), which is representative of a monitored input signal. The individual forces collectively applied to the idler bar generate a resultant or moment force thereon which is linked to a conventional vacuum modulator valve (38) through a vent insert (118).