ELECTRO-HYDRAULIC SENSOR FAIL SAFE
    4.
    发明申请
    ELECTRO-HYDRAULIC SENSOR FAIL SAFE 有权
    电液传感器故障安全

    公开(公告)号:US20120216877A1

    公开(公告)日:2012-08-30

    申请号:US13037347

    申请日:2011-02-28

    IPC分类号: F16K35/14 F16K31/00

    摘要: A fail-safe system and method for an electro-hydraulic system. The system includes a controller, sensor, directional control valve, interlock, hydraulic valve and movement actuator. The directional control valve moves when the controller is moved. The interlock is hydraulically coupled to the directional control valve; and is in active position when the directional control valve is moved, and in shutoff position when the directional control valve is not moved. The hydraulic valve has an input side coupled to a flow source and an output side coupled to a hydraulic function. The movement actuator moves the hydraulic valve to a desired position as directed by the controller when the interlock is in the active position, and does not move the hydraulic valve when the interlock is in the shutoff position. The sensor detects movement of the controller and sends a control signal to the first valve actuator.

    摘要翻译: 电液系统的故障安全系统和方法。 该系统包括控制器,传感器,方向控制阀,互锁,液压阀和运动执行器。 当控制器移动时,方向控制阀移动。 互锁液压耦合到方向控制阀; 当方向控制阀移动时处于主动位置,当方向控制阀未移动时处于关闭位置。 液压阀具有联接到流动源的输入侧和联接到液压功能的输出侧。 当互锁处于活动位置时,运动致动器将液压阀移动到由控制器指示的期望位置,并且当互锁处于关闭位置时,运动致动器不移动液压阀。 传感器检测控制器的运动,并向第一阀门执行器发送控制信号。

    Electro-hydraulic sensor fail safe
    5.
    发明授权
    Electro-hydraulic sensor fail safe 有权
    电液传感器故障安全

    公开(公告)号:US08646473B2

    公开(公告)日:2014-02-11

    申请号:US13037347

    申请日:2011-02-28

    IPC分类号: F16K35/14 F16K31/00

    摘要: A fail-safe system and method for an electro-hydraulic system. The system includes a controller, sensor, directional control valve, interlock, hydraulic valve and movement actuator. The directional control valve moves when the controller is moved. The interlock is hydraulically coupled to the directional control valve; and is in active position when the directional control valve is moved, and in shutoff position when the directional control valve is not moved. The hydraulic valve has an input side coupled to a flow source and an output side coupled to a hydraulic function. The movement actuator moves the hydraulic valve to a desired position as directed by the controller when the interlock is in the active position, and does not move the hydraulic valve when the interlock is in the shutoff position. The sensor detects movement of the controller and sends a control signal to the first valve actuator.

    摘要翻译: 电液系统的故障安全系统和方法。 该系统包括控制器,传感器,方向控制阀,互锁,液压阀和运动执行器。 当控制器移动时,方向控制阀移动。 互锁液压耦合到方向控制阀; 当方向控制阀移动时处于主动位置,当方向控制阀未移动时处于关闭位置。 液压阀具有联接到流动源的输入侧和联接到液压功能的输出侧。 当互锁处于活动位置时,运动致动器将液压阀移动到由控制器指示的期望位置,并且当互锁处于关闭位置时,运动致动器不移动液压阀。 传感器检测控制器的运动,并向第一阀门执行器发送控制信号。

    Circle drive arrangement for motor grader
    6.
    发明授权
    Circle drive arrangement for motor grader 有权
    自行式平地机的圆形驱动装置

    公开(公告)号:US07874377B1

    公开(公告)日:2011-01-25

    申请号:US12608116

    申请日:2009-10-29

    IPC分类号: E02F3/00

    摘要: A motor grader is equipped with a circle drive arrangement including a variable displacement motor capable of operating at a high speed for driving the circle at a high speed, as when the blade is elevated above the ground and the grader is turning around for reversing the operation of the blade, and capable of operating at a high torque for driving the circle to change the angle of operation of the blade relative to the grader frame when the blade is in ground contact.

    摘要翻译: 自动平地机具有圆形驱动装置,其包括能够以高速操作以高速驱动圆的可变容量电动机,如当刀片升高到地面以上并且分级机转向以反转操作时 的刀片,并且能够以高扭矩操作以驱动圆圈,以在刀片接地时改变刀片相对于分级机框架的操作角度。

    Fluid system with signal-mimicking device and associated method
    8.
    发明申请
    Fluid system with signal-mimicking device and associated method 有权
    具有信号模拟装置和相关方法的流体系统

    公开(公告)号:US20080047423A1

    公开(公告)日:2008-02-28

    申请号:US11510099

    申请日:2006-08-25

    IPC分类号: F15B11/00

    摘要: A fluid system comprises a static LS valve, a dynamic LS valve, a priority valve biased to preferentially supply pressurized fluid to both the static LS valve and the dynamic LS valve, and a signal-mimicking device fluidly coupled to a static LS port of the static LS valve, a dynamic LS port of the dynamic LS valve, and a dynamic LS pilot port of the priority valve for mimicking a static LS signal from the static LS port of the static LS valve into a dynamic LS signal from the dynamic LS port of the dynamic LS valve to produce a combined LS signal communicated to the dynamic LS pilot port of the priority valve. Such a fluid system may be applied to a steering system. An associated method is disclosed.

    摘要翻译: 流体系统包括静态LS阀,动态LS阀,被优先向静态LS阀和动态LS阀提供加压流体的优先阀,以及流体耦合到静态LS阀的静态LS端口的信号模拟装置 静态LS阀,动态LS阀的动态LS端口和优先阀的动态LS先导端口,用于将静态LS阀的静态LS端口的静态LS信号模拟为动态LS端口的动态LS信号 的动态LS阀,以产生传递到优先阀的动态LS先导端口的组合LS信号。 这样的流体系统可以应用于转向系统。 公开了一种相关联的方法。