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1. 发明授权

US3835876A Fluid signal limiting device 失效
标题翻译：流体信号限制装置
公开(公告)号：US3835876A
公开(公告)日：1974-09-17
申请号：US19989371
申请日：1971-11-18
申请人： JOHNSON SERVICE CO
发明人： LAAKANIEMI R , STAHL R
IPC分类号： F15B5/00 , F15C3/04 , F15C3/16 , F15C4/00 , G05B9/05 , G05D16/00
CPC分类号： G05B9/05 , F15C3/04 , F15C4/00 , Y10T137/2278
摘要： A PNEUMATIC SIGNAL LIMITER INCLUDES AN INTEGRATED FLUIDIC REPEATER AND VARIABLE RESTRICTOR ASSEMBLY HAVING A PAIR OF TELESCOPING INTERCONNECTED INPUT AND OUTPUT BODY MEMBERS WITH OPPOSING AND COMPLEMENTARY RECESSED FACES DEFINING AN INPUT CHAMBER AND AN OUTPUT CHAMBER TO OPPOSITE SIDES OF A DIAPHRAGM. THE OUTPUT PORTION INCLUDES AN EXHAUST ORIFICE AND PASSAGEWAY WITHIN WHICH A VARIABLE LOW LIMIT RESTRICTOR IS MOUNTED TO CONTROL THE EXHAUST FLOW. THE OUTPUT BODY FURTHER INCLUDES AN OUTPUT PASSAGEWAY AND INTERSECTING EXHAUST PASSAGEWAY WITH AN ADJUSTABLE HIGH LIMIT RESTRICTOR CONNECTED DIRECTLY TO THE EXHAUST PASSAGEWAY. THE SUPPLY IS CONNECTED TO THE OUTPUT PASSAGEWAY IN SERIES WITH A RESTRICTOR THROUGH THE INTERSECTING PASSAGEWAY OR A SEPARATE CONNECTION. EACH RESTRICTOR IS A NEEDLE CALVE WHICH IS ADJUSTABLY SECURED WITHIN THE HOUSING WITH A CONICAL POINT WITHIN A RELATED LIMITER ORIFICE. THE THREADED PIN VALVE MEMBER HAS A RELATIVELY SMALL CONE ANGLE AND VERY FINE ADJUSTING THREADS. A CLOSED LOOP CONTROL SYSTEM INCLUDES A CONTROLLER CONNECTED TO SENSORS FROM A CONTROLLED VARIABLE SOURCE AND FROM A MASTER VARIABLE SOURCE THROUGH LIMITERS. THE CONTROLLER IS CONNECTED VIA A LIMITER TO A CONTROL APPARATUS FOR THE CONTROLLED VARIABLE UNIT.

D R A W I N G

2. 发明授权

US3812873A Fluid signal limiting device 失效
标题翻译：流体信号限制装置
公开(公告)号：US3812873A
公开(公告)日：1974-05-28
申请号：US36453673
申请日：1973-05-29
申请人： JOHNSON SERVICE CO
发明人： LAAKANIEMI R , STAHL R
IPC分类号： F15C3/04 , F15C4/00 , G05D16/00
CPC分类号： F15C3/04 , F15C4/00 , Y10T137/2278 , Y10T137/2365
摘要： A pneumatic signal limiter includes an integrated fluidic repeater and variable restrictor assembly having a pair of telescoping interconnected input and output body members with opposing and complementary recessed faces defining an input chamber and an output chamber to opposite sides of a diaphragm. The output portion includes an exhaust orifice and passageway within which a variable low limit restrictor is mounted to control the exhaust flow. The output body further includes an output passageway and intersecting exhaust passageway with an adjustable high limit restrictor connected directly to the exhaust passageway. The supply is connected to the output passageway in series with a restrictor through the intersecting passageway or a separate connection. Each restrictor is a needle valve which is adjustably secured within the housing with a conical point within a related limiter orifice. The threaded pin valve member has a relatively small cone angle and very fine adjusting threads. A closed loop control system includes a controller connected to sensors from a controlled variable source and from a master variable source through limiters. The controller is connected via a limiter to a control apparatus for the controlled variable unit.
摘要翻译：气动信号限制器包括集成流体中继器和可变节流器组件，其具有一对可伸缩的互连的输入和输出主体构件，其具有限定输入室的相对且互补的凹面，以及在隔膜的相对侧的输出室。输出部分包括排气孔和通道，其中安装有可变下限限制器以控制排气流。输出体还包括输出通道和相交的排气通道，其具有可直接连接到排气通道的可调高限制器。供应通过相交通道或单独的连接与限流器串联连接到输出通道。每个限流器是针阀，其可调节地固定在壳体内，在相关的限制器孔口内具有锥形点。螺纹销阀构件具有相对小的锥角和非常细的调节螺纹。闭环控制系统包括连接到来自受控变量源的传感器和通过限制器的主变量源的控制器。控制器通过限制器连接到受控变量单元的控制装置。

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