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156 条记录 (耗时 0.014 秒)

    CRANE HYDRAULIC SYSTEM AND CONTROLLING METHOD OF THE SYSTEM
    86.
    发明申请
    CRANE HYDRAULIC SYSTEM AND CONTROLLING METHOD OF THE SYSTEM 审中-公开

    公开(公告)号：US20180319634A1

    公开(公告)日：2018-11-08

    申请号：US15522105

    申请日：2015-10-30

    申请人： XUZHOU HEAVY MACHINERY CO., LTD.

    发明人： Zenghai Shan ,  Xiaodong Hu ,  Guowang Jiao ,  Bin Zhou ,  Conglin Yuan

    IPC分类号： B66C13/20 ,  B66D1/08 ,  F15B11/08 ,  F15B13/16 ,  F15B13/04

    CPC分类号： B66C13/20 ,  B66D1/08 ,  F15B11/08 ,  F15B13/0417 ,  F15B13/16

    摘要： The present application relates to a crane hydraulic system and a controlling method of the system, wherein the crane hydraulic system includes a load sensing subsystem, and the subsystem includes a variable pump, a variable pump oil inlet line, a load feedback line, an oil return line and a pressure compensator; the pressure compensator is provided with an oil inlet, an oil outlet, a first control oil port, a second control oil port and a control spring; the oil inlet communicates with the variable pump oil inlet line, the oil outlet communicates with the oil return line, the first control oil port communicates with the load feedback line, and the second control oil port also communicates with the variable pump oil inlet line; and wherein the control spring and the first control oil port are located on the same end of the pressure compensator, and a set pressure of the control spring is greater than a pressure difference of the variable pump. According to the present application, since the load sensing subsystem is arranged, at the start and stop moments of a winch system, the pressure compensator can be opened, and the variable pump oil inlet line communicates with the oil return line to realize pressure relief, so as to reduce the pressure impact.

    ENGINE NOZZLE SYNCHRONIZATION SYSTEM
    89.
    发明申请
    ENGINE NOZZLE SYNCHRONIZATION SYSTEM 审中-公开

    公开(公告)号：US20170089364A1

    公开(公告)日：2017-03-30

    申请号：US15312123

    申请日：2015-06-02

    申请人： Moog Inc.

    发明人： John Kopp

    IPC分类号： F15B11/22 ,  F15B9/16 ,  F15B9/10

    CPC分类号： F15B11/22 ,  F15B9/10 ,  F15B9/16 ,  F15B13/16

    摘要： An actuator synchronization system comprising a control valve in fluid communication with a plurality of actuators; each of the actuators comprising an input member moveable by the control valve, a main valve moveable from a null to an off-null position, an output member moveable from a first to a second output position, and a feedback linkage and a drive link configured such that selective movement of the input member causes movement of the valve from the null to the off-null position and movement of the output member to the second output position causes movement of the valve member from the off-null to the null position; and a mechanical connector between each of the input members or drive links of the actuators configured such that rotational motion of each of the respective drive links is synchronized.

    DOUBLE NOZZLE TYPE SMART POSITIONER
    90.
    发明申请
    DOUBLE NOZZLE TYPE SMART POSITIONER 有权
    双喷嘴类型智能定位器

    公开(公告)号：US20160208826A1

    公开(公告)日：2016-07-21

    申请号：US14994340

    申请日：2016-01-13

    申请人： YOUNG TECH CO., LTD.

    发明人： Du Gi Min

    IPC分类号： F15B13/16

    CPC分类号： F15B13/16 ,  F15B5/003 ,  F15B2211/30575 ,  Y10T137/2278 ,  Y10T137/87209

    摘要： Provided is a double nozzle type positioner, which includes a flapper (1), a first nozzle (2) and a second nozzle (3) disposed at both sides based on the flapper (1), a first orifice (4) configured to maintain a constant pressure of the first nozzle (2), a second orifice (5) configured to maintain a constant pressure of the second nozzle (3), a first pilot valve (6) having an input portion connected to a feed pressure, a second pilot valve (7) having an input portion connected to an output portion of the first pilot valve (6), a discharge hole (8) connected to an output portion of the second pilot valve (7), and an actuator (9) connected to the output portion of the first pilot valve (6) and the input portion of the second pilot valve (7). If the first nozzle (2) is opened due to the movement of the flapper (1), the second nozzle (3) is closed, and if the first nozzle (2) is closed, the second nozzle (3) is opened.

    摘要翻译： 提供一种双喷嘴型定位器，其包括基于挡板（1）设置在两侧的挡板（1），第一喷嘴（2）和第二喷嘴（3），第一孔口（4），其构造成保持 第一喷嘴（2）的恒定压力，构造成保持第二喷嘴（3）的恒定压力的第二孔口（5），具有连接到进料压力的输入部分的第一先导阀（6），第二喷嘴 先导阀（7），其具有连接到第一先导阀（6）的输出部分的输入部分，连接到第二先导阀（7）的输出部分的排出孔（8）和连接到第二先导阀 到第一先导阀（6）的输出部分和第二先导阀（7）的输入部分。 如果由于挡板（1）的移动而使第一喷嘴（2）打开，则第二喷嘴（3）关闭，并且如果第一喷嘴（2）关闭，则第二喷嘴（3）打开。