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    Fluid control system with on-line diagnosis means isolating malfunctions
    22.
    发明授权
    Fluid control system with on-line diagnosis means isolating malfunctions 失效
    具有在线诊断的流体控制系统意味着分离失效

    公开(公告)号：US3901273A

    公开(公告)日：1975-08-26

    申请号：US34963373

    申请日：1973-04-09

    Applicant: LEESONA CORP

    Inventor： BROUWER CHARLES WILLIAM ,  COWAN LARRY CLYDE

    IPC: D01G31/00 ,  G05B19/04 ,  G05B23/02 ,  F16K37/00

    CPC classification number: G05B19/04 ,  Y10T137/8175 ,  Y10T137/8326 ,  Y10T137/87201

    Abstract: An on-line diagnostic system is provided working conjointly with but not interfering with the operation of a logically controlled industrial control system. Thus binary digital words are displayed at a centralized location for comparison with a scroll chart to indicate irregularities of operations by listing invalid words and to pinpoint correctional techniques with a predetermined servicing recommendation for invalid word combinations. In a preferred embodiment the system is a fluid controlled binary operated cyclic control system provided with logic elements interconnected for automatically progressing through a cyclic operation mode controlling flow paths for working fluid under pressure in a desired sequence to thereby perform a work function. The preferred fluid logic elements comprise a compartment separated into two chambers by a flexible diaphragm which is flexed by pressure differentials to block or open fluid flow paths through the respective chambers. Binary indications as to status of these flow paths are provided as pressure readings at a plurality of key flow path positions thereby producing the binary word information specifying the nature of malfunctions.

    Fluid operable binary control system with diagnostic indicators
    23.
    发明授权
    Fluid operable binary control system with diagnostic indicators 失效
    具有诊断指示器的流体可操作二进制控制系统

    公开(公告)号：US3882893A

    公开(公告)日：1975-05-13

    申请号：US34963473

    申请日：1973-04-09

    Applicant: LEESONA CORP

    Inventor： BROUWER CHARLES WILLIAM ,  COWAN LARRY CLYDE

    IPC: F15C4/00 ,  G05B19/44 ,  F01K13/02 ,  F16K37/00

    CPC classification number: G05B19/44 ,  Y10T137/8326 ,  Y10T137/87201

    Abstract: Pulse actuated binary fluid responsive logic elements are connected in a control system for a fluid flow network operating a fluid responsive mechanism. The logic elements are interconnected to respond to a trigger pulse and automatically sequence through a cycle of operation sensing and responding to fluid pressure conditions at control points in the flow network. A portion of the control points are monitored with diagnostic binary pressure indicators to indicate the status of the network during the control sequence by display of binary words. For correcting malfunctions a comparison chart indicates the nature of invalid words and the corresponding procedure for correcting the malfunctions sensing that word structure, thereby expediting servicing by semi-skilled personnel without detailed knowledge of the system operation.

    Abstract translation: 脉冲致动二元流体响应逻辑元件连接在用于操作流体响应机构的流体流动网络的控制系统中。 逻辑元件相互连接以响应触发脉冲，并且自动地通过操作感测循环并且响应流动网络中的控制点处的流体压力条件。 通过诊断二进制压力指示器监视控制点的一部分，以通过显示二进制字来指示控制序列期间网络的状态。 为了纠正故障，比较图表示无效字的性质以及用于纠正感知该字结构的故障的相应过程，从而加速半技术人员的维修，而无需系统操作的详细知识。

    Fluid motor control system
    25.
    发明授权
    Fluid motor control system 失效
    流体电机控制系统

    公开(公告)号：US3654836A

    公开(公告)日：1972-04-11

    申请号：US3654836D

    申请日：1970-06-03

    Applicant: CATERPILLAR TRACTOR CO

    Inventor： SCHEXNAYDER LAWRENCE F

    IPC: F15B11/02 ,  F15B11/08 ,  F15B13/04 ,  F15B13/042

    CPC classification number: F15B13/0405 ,  Y10T137/87201

    Abstract: An operator''s actuator lever provides for starting, stopping and speed control of a fluid motor and a separate direction lever provides for selecting forward or reverse motor operation. The two levers are supported for pivoting motion along arcs which extend at right angles to each other and a stop carried on the actuator lever blocks shifting of the directional lever except when the motor is stopped thereby avoiding damage to mechanism driven by the motor from sudden reversal at high speeds. Through fluid lines, the levers condition a compact simplified valve assembly which directs driving fluid to a selected side of the motor at a selected rate and which also functions as a make-up valve to avoid cavitation and as a lock valve to resist motor movement by external load forces acting on the mechanism connected to the motor.

    Abstract translation: 操作员的执行器杆提供流体马达的启动，停止和速度控制，单独的方向杆可用于选择正向或反向电机运行。 两个杠杆被支撑用于沿着彼此成直角延伸的弧线的枢转运动，并且执行器杆上承载的止动块阻止定向杆的移位，除了当电机停止时，避免由电动机驱动的机构突然反转的损坏 在高速下 通过流体管线，杠杆使紧凑的简化的阀门组件以选定的速率将驱动流体引导到电动机的选定侧，并且还用作补充阀以避免气蚀，并且作为锁定阀抵抗电动机运动 作用在连接到电机的机构上的外部载荷力。

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