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    Pilot operated control valve
    171.
    发明授权
    Pilot operated control valve 失效
    引导操作控制阀

    公开(公告)号：US3841345A

    公开(公告)日：1974-10-15

    申请号：US33045973

    申请日：1973-02-07

    Applicant: CATERPILLAR TRACTOR CO

    Inventor： CRYDER J

    IPC: F15B11/08 ,  F16K11/10

    CPC classification number: F15B11/08 ,  F15B2211/3057 ,  F15B2211/329 ,  F15B2211/40546 ,  F15B2211/41572 ,  F15B2211/428 ,  F15B2211/455 ,  F15B2211/46 ,  F15B2211/50536 ,  F15B2211/5157 ,  F15B2211/528 ,  F15B2211/5753 ,  F15B2211/635 ,  Y10T137/2554 ,  Y10T137/87201

    Abstract: An implement hydraulic circuit including a pilot operated flow amplifier directional valve for controlling communication between a source of primary actuating fluid and a hydraulic motor. A pair of valve spools in the valve provide separate regulated flow paths for an inlet passage and an outlet passage respectively with a pair of work ports. An actuating chamber is associated with one end of each of the spools and may each be selectively communicated with a separate source of pilot fluid for actuation of either of the spools to communicate the primary source with either side of the motor. The other spool is positioned by fluid displaced from the motor to communicate the displaced fluid to the outlet passage for return to a reservoir. The configuration of the spools and their arrangement in the valve provide a capability of metering flow from motor to reservoir to prevent overrunning of the motor.

    Abstract translation: 一种工具液压回路，包括用于控制主致动流体源和液压马达之间的连通的先导式流量放大器方向阀。 阀门中的一对阀芯为分别具有一对工作端口的入口通道和出口通道提供单独的调节流路。 致动室与每个线轴的一端相关联，并且每个可以选择性地与独立的先导流体源连通，以致于任何一个线轴使主电源与电动机的任一侧相通。 另一个卷轴通过从马达移位的流体定位，以将排出的流体连通到出口通道以返回到储存器。 阀芯的配置及其在阀门中的布置提供了计量从马达到储油器的流量的能力，以防止马达过载。

    Speed control mechanism
    172.
    发明授权
    Speed control mechanism 失效
    速度控制机制

    公开(公告)号：US3818802A

    公开(公告)日：1974-06-25

    申请号：US24814972

    申请日：1972-04-27

    Applicant: US NAVY

    Inventor： WILSON R

    IPC: F15B11/12 ,  F15B11/13 ,  F15B13/04 ,  F15B13/043 ,  F15B11/08 ,  F15B13/042

    CPC classification number: F15B13/0431 ,  F15B11/123 ,  F15B11/13 ,  F15B13/0402 ,  Y10T137/8663 ,  Y10T137/87201

    Abstract: A speeed control mechanism having a main spool valve and metering valves controls the output to and return flow from an hydraulic fluid actuator. The main spool valve controls the direction and acceleration of the actuator, and the metering valves determine the maximum velocity of the actuator independent of the load. Adjustment features are provided to control the maximum displacement and the speed of the displacement of the main spool valve. Moreover, a novel adjustment feature is incorporated into the main spool valve to control the maximum volumetric flow rate through the metering valves.

    Abstract translation: 具有主滑阀和计量阀的引导控制机构控制输出并从液压流体致动器返回流量。 主滑阀控制致动器的方向和加速度，并且计量阀确定执行器的独立于负载的最大速度。 提供调节功能，以控制主滑阀的最大位移和位移速度。 此外，新的调节特征被并入到主滑阀中以控制通过计量阀的最大体积流量。

    Pumping trap for condensate
    173.
    发明授权
    Pumping trap for condensate 失效
    冷凝水泵

    公开(公告)号：US3790306A

    公开(公告)日：1974-02-05

    申请号：US3790306D

    申请日：1971-10-05

    Applicant: FUJIWARA MFG CO LTD

    Inventor： UEFUJI Z

    IPC: F16T1/38 ,  F22D11/06 ,  F04F1/06

    CPC classification number: F16T1/38 ,  F22D11/06 ,  Y10T137/3099 ,  Y10T137/742 ,  Y10T137/87193 ,  Y10T137/87201

    Abstract: A pumping trap for returning high temperature condensate under lower presure directly to a boiler under higher pressure. This trap comprises in combination a condensate sump having an inlet and an outlet respectively provided with a check valve, supply and exhaust passages for higher pressure air, gas or the like, a float accomodated in said condensate sump, inlet and outlet check valves as well as pressure operated supply and exhaust valves provided on said passages, and a pilot valve which opens and closes according to rise and fall of said float.

    Abstract translation: 用于在较低压力下将高温冷凝物返回到更高压力下的锅炉的泵送阱。 该收集器组合有具有分别设有止回阀的入口和出口的冷凝水槽，用于较高压力的空气，气体等的供应和排出通道，容纳在所述冷凝水槽中的浮子，入口和出口止回阀 作为设置在所述通路上的压力供给和排气阀，以及根据所述浮子的上升和下降而打开和关闭的先导阀。

    Multi-way directional fluid flow control valve arrangement
    174.
    发明授权
    Multi-way directional fluid flow control valve arrangement 失效
    多方向流体流量控制阀布置

    公开(公告)号：US3760843A

    公开(公告)日：1973-09-25

    申请号：US3760843D

    申请日：1972-02-01

    Applicant: FLUID DEVICES LTD

    Inventor： LARNER D

    IPC: F15B13/04 ,  F16K11/02 ,  F16K31/40 ,  F16K11/20

    CPC classification number: F16K11/022 ,  F15B13/0405 ,  F16K31/40 ,  Y10T137/87201

    Abstract: In order to provide a multi-way directional fluid flow control valve arrangement which provides good control whilst being relatively cheap to manufacture, I use simple main valves all of which have parallel axes and all lie in a common plane, enabling me to form the main valves in a cheap manufacturing operation; the pilot valve however is more complex and has at least four connections, but because the pilot valve is smaller, this extra complexity does not make the whole valve arrangement more expensive.

    Abstract translation: 为了提供一种多方向的流体流量控制阀装置，它在制造相对便宜的同时提供了良好的控制，我使用简单的主阀，它们都具有平行的轴，并且都位于共同的平面上，使我能形成主要 阀门处于廉价制造业务; 然而，先导阀更复杂并且具有至少四个连接，但是由于先导阀较小，所以这种额外的复杂性不会使整个阀装置更昂贵。

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