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    HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINE
    1.
    发明申请
    HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINE 审中-公开
    建筑机械液压系统

    公开(公告)号：US20150159682A1

    公开(公告)日：2015-06-11

    申请号：US14416201

    申请日：2012-07-27

    申请人： Sang-Ki Bae ,  Jae-Hoon Lee

    发明人： Sang-Ki Bae ,  Jae-Hoon Lee

    IPC分类号： F15B20/00 ,  F15B15/20

    CPC分类号： F15B20/007 ,  E02F9/2235 ,  E02F9/2285 ,  E02F9/2296 ,  F15B11/0423 ,  F15B15/202 ,  F15B2211/20546 ,  F15B2211/40507 ,  F15B2211/41563 ,  F15B2211/50518 ,  F15B2211/5157 ,  F15B2211/6306 ,  F15B2211/6309 ,  F15B2211/6652

    摘要： A hydraulic system provided with a relief valve for a construction machine is disclosed, which can reduce a discharge flow rate of a hydraulic pump when a relief valve is operated. The hydraulic system for a construction machine includes a variable displacement hydraulic pump connected to an engine, an attachment operation device outputting an operation signal in proportion to an operation amount by an operator, an attachment actuator connected to the hydraulic pump to be driven by an operation of the attachment operation device, a control valve installed in a flow path between the hydraulic pump and the attachment actuator and shifted to control a start, a stop, and a direction change of the attachment actuator, an orifice installed in a flow path branched from a discharge flow path of the hydraulic pump, a relief valve installed on a downstream side of the orifice in the flow path, and a controller outputting a control signal to a flow control valve of the hydraulic pump so as to reduce a discharge flow rate of the hydraulic pump when a difference between pressures before and after the orifice exceeds a predetermined value.

    摘要翻译： 公开了一种设置有用于建筑机械的安全阀的液压系统，其可以在减压阀操作时降低液压泵的排出流量。 用于建筑机械的液压系统包括连接到发动机的可变排量液压泵，与操作者的操作量成比例地输出操作信号的附接操作装置，连接到液压泵以由操作驱动的附接致动器 安装在液压泵和安装致动器之间的流动路径中的控制阀，并且移动以控制附接致动器的起动，停止和方向改变;安装在流路中的孔， 液压泵的排出流路，安装在流路中的孔口的下游侧的安全阀，以及向液压泵的流量控制阀输出控制信号的控制器，以减少液压泵的排出流量 当孔之前和之后的压力之间的差异超过预定值时，液压泵。

    HYDRAULIC SYSTEM FOR CONSTRUCTION EQUIPMENT
    2.
    发明申请
    HYDRAULIC SYSTEM FOR CONSTRUCTION EQUIPMENT 有权
    建筑设备液压系统

    公开(公告)号：US20150059329A1

    公开(公告)日：2015-03-05

    申请号：US14390328

    申请日：2012-04-17

    申请人： Sang-Ki Bae ,  Jae-Hoon Lee

    发明人： Sang-Ki Bae ,  Jae-Hoon Lee

    IPC分类号： F15B11/05

    CPC分类号： F15B11/055 ,  E02F9/123 ,  E02F9/2228 ,  E02F9/2235 ,  E02F9/2285 ,  E02F9/2296 ,  F15B11/165 ,  F15B2211/20546 ,  F15B2211/25 ,  F15B2211/253 ,  F15B2211/605 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/6316 ,  F15B2211/65 ,  F15B2211/651 ,  F15B2211/6652 ,  F15B2211/7058 ,  F15B2211/7135 ,  F15B2211/78

    摘要： A hydraulic system for a construction machine having a pressure compensation valve is disclosed, which improves operability when a combined operation of a swing device and an attachment is performed. The hydraulic system includes a hydraulic pump, attachment and swing operation devices, an attachment actuator and a swing motor connected to the hydraulic pump, a first control valve controlling hydraulic fluid being supplied to the actuator, a second control valve controlling hydraulic fluid being supplied to the swing motor, a check valve installed on a flow path for detecting load pressures of the actuator to take a maximum pressure of the load pressures, a first pressure compensation valve having an opening amount that is controlled by a difference between the maximum load sensing pressure and the pressure of a discharge flow path of the first control valve, a second pressure compensation valve having an opening amount that is controlled by a difference between the maximum load sensing pressure and the pressure of the discharge flow path of the second control valve, a maximum load pressure sensor detecting the pressure of a maximum load sensing pressure line, and a control unit controlling a discharge flow rate of the hydraulic pump, wherein the system is configured so that the swing load pressure is not connected to the first pressure compensation valve on the attachment side when a combined operation of the swing device and the attachment is performed.

    摘要翻译： 公开了一种用于具有压力补偿阀的施工机械的液压系统，其在执行摆动装置和附件的组合操作时提高了可操作性。 液压系统包括液压泵，附接和摆动操作装置，附接致动器和连接到液压泵的回转马达，控制供应到致动器的液压流体的第一控制阀，控制液压流体的第二控制阀， 摆动马达，安装在流路上的止回阀，用于检测致动器的负载压力以承受最大压力的负载压力;第一压力补偿阀，其具有由最大负载感测压力 以及第一控制阀的排出流路的压力，具有由最大负荷感测压力和第二控制阀的排出流路的压力之间的差控制的开度的第二压力补偿阀， 检测最大负载感测压力线的压力的最大负载压力传感器和控制单元co 控制液压泵的排出流量，其中，当执行摆动装置和附件的组合操作时，系统构造成使得摆动负载压力未连接到附接侧上的第一压力补偿阀。

    HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINERY
    3.
    发明申请
    HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINERY 审中-公开

    公开(公告)号：US20140090368A1

    公开(公告)日：2014-04-03

    申请号：US14123402

    申请日：2011-06-09

    申请人： Sang-Ki Bae ,  Jae-Hoon Lee

    发明人： Sang-Ki Bae ,  Jae-Hoon Lee

    IPC分类号： E02F9/22

    CPC分类号： E02F9/2292 ,  B62D11/005 ,  E02F9/2242 ,  E02F9/225 ,  F15B11/17 ,  F15B2211/20538 ,  F15B2211/20576 ,  F15B2211/30555 ,  F15B2211/30595 ,  F15B2211/327 ,  F15B2211/50536 ,  F15B2211/6316 ,  F15B2211/6658 ,  F15B2211/7135 ,  F15B2211/7142 ,  F15B2211/85

    摘要： A hydraulic system for a construction machine is disclosed, which can prevent off-course travel of the machine when a combined operation of a traveling device and a working device such as a boom is performed. The hydraulic system for a construction machine includes first and second hydraulic pumps, left and right traveling operation levers and actuator operation levers for first and second working devices, a left traveling motor connected to a discharge flow path of the first hydraulic pump and an actuator for the first working device, a right traveling motor connected to a discharge flow path of the second hydraulic pump and an actuator for the second working device, a first pressure compensated valve installed on one side of an upper stream and a downstream of the first control valve, a second pressure compensated valve installed on one side of an upper stream and a downstream of the second control valve, a third pressure compensated valve, a fourth pressure compensated valve installed on one side of an upper stream and a downstream of the fourth control valve, a first orifice connected to the first pressure compensated valve of the first control valve, a first load sensing line connected to the fourth pressure compensated valve of the fourth control valve, and a hydraulic tank, a second orifice connected to the second pressure compensated valve of the second control valve, a second load sensing line connected to the third pressure compensated valve of the third control valve, and the hydraulic tank, a confluence valve installed in a confluence flow path of the first and second hydraulic pumps, a traveling communication valve installed in a flow path connecting the downstream of the left traveling first pressure compensated valve to the downstream of the right traveling third pressure compensated valve, and a controller controlling communication of the traveling communication valve when a combined operation for simultaneously operating the traveling device and the working device is performed.

    HYDRAULIC PUMP FOR CONSTRUCTION MACHINERY
    4.
    发明申请
    HYDRAULIC PUMP FOR CONSTRUCTION MACHINERY 审中-公开
    液压泵用于建筑机械

    公开(公告)号：US20130276441A1

    公开(公告)日：2013-10-24

    申请号：US13996055

    申请日：2010-12-27

    申请人： Sang-Ki Bae ,  Jae-Hoon Lee ,  Sung-Yong Jo

    发明人： Sang-Ki Bae ,  Jae-Hoon Lee ,  Sung-Yong Jo

    IPC分类号： F15B13/02 ,  F15B13/06

    CPC分类号： F15B13/022 ,  E02F9/2242 ,  E02F9/2285 ,  E02F9/2292 ,  F15B11/17 ,  F15B13/06 ,  F15B2211/20538 ,  F15B2211/20576 ,  F15B2211/265 ,  F15B2211/45

    摘要： Disclosed is a hydraulic pump for construction machinery for controlling to inhibit one-way driving when compound-operating two-way driving and work devices, such as a boom, to enhance operation efficiency. The hydraulic system for the construction machinery of the present invention provides the hydraulic system comprising: an operation device for driving and an operation lever for the work devices; a left driving motor which connects to a first hydraulic pump; a first control valve which is installed on the discharge flow path of the first hydraulic pump; a right driving motor which is connected to a second hydraulic pump; a hydraulic actuator which is connected to the first hydraulic pump and the second hydraulic pump; a second control valve which is installed on the discharge flow path of the first hydraulic pump or the second hydraulic pump; a third control valve which is installed on a flow path that branches from the discharge flow path of the second flow path; a first bypass valve which is connected to the upstream portion of the discharge flow path of the first hydraulic pump; a second bypass valve which is connected to the upstream portion of the discharge flow path of the second hydraulic pump; a confluence valve which is installed on a flow path which connects in parallel the discharge paths of the first and second hydraulic pumps; and a controller for controlling the opening of the first and second bypass valves and the confluence valve according to an operation signal that is input from the operation device for driving and the operation lever for the work device.

    摘要翻译： 公开了一种用于在复合作业双向驾驶和工作装置（例如吊杆）上控制单向驾驶的工程机械的液压泵，以提高操作效率。 本发明的工程机械的液压系统提供了一种液压系统，包括：用于驱动的​​操作装置和用于作业装置的操作杆; 连接到第一液压泵的左驱动马达; 第一控制阀，安装在第一液压泵的排出流路上; 连接到第二液压泵的右驱动马达; 连接到第一液压泵和第二液压泵的液压致动器; 第二控制阀，安装在第一液压泵或第二液压泵的排出流路上; 第三控制阀，其安装在从所述第二流路的排出流路分支的流路上; 第一旁通阀，其连接到第一液压泵的排出流路的上游部; 第二旁通阀，其连接到第二液压泵的排出流路的上游部; 汇流阀，其安装在平行于第一和第二液压泵的排出路径的流路上; 以及控制器，用于根据从用于驱动的​​操作装置和作业装置的操作杆输入的操作信号来控制第一和第二旁通阀和汇流阀的打开。

    Hydraulic system for construction equipment
    5.
    发明授权
    Hydraulic system for construction equipment 有权

    公开(公告)号：US09618017B2

    公开(公告)日：2017-04-11

    申请号：US14390328

    申请日：2012-04-17

    申请人： Sang-Ki Bae ,  Jae-Hoon Lee

    发明人： Sang-Ki Bae ,  Jae-Hoon Lee

    IPC分类号： F15B11/05 ,  E02F9/22 ,  E02F9/12 ,  F15B11/16

    CPC分类号： F15B11/055 ,  E02F9/123 ,  E02F9/2228 ,  E02F9/2235 ,  E02F9/2285 ,  E02F9/2296 ,  F15B11/165 ,  F15B2211/20546 ,  F15B2211/25 ,  F15B2211/253 ,  F15B2211/605 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/6316 ,  F15B2211/65 ,  F15B2211/651 ,  F15B2211/6652 ,  F15B2211/7058 ,  F15B2211/7135 ,  F15B2211/78

    摘要： A hydraulic system for a construction machine having a pressure compensation valve is disclosed, which improves operability when a combined operation of a swing device and an attachment is performed. The hydraulic system includes a hydraulic pump, attachment and swing operation devices, an attachment actuator and a swing motor connected to the hydraulic pump, a first control valve controlling hydraulic fluid being supplied to the actuator, a second control valve controlling hydraulic fluid being supplied to the swing motor, a check valve installed on a flow path for detecting load pressures of the actuator to take a maximum pressure of the load pressures, a first pressure compensation valve having an opening amount that is controlled by a difference between the maximum load sensing pressure and the pressure of a discharge flow path of the first control valve, a second pressure compensation valve having an opening amount that is controlled by a difference between the maximum load sensing pressure and the pressure of the discharge flow path of the second control valve, a maximum load pressure sensor detecting the pressure of a maximum load sensing pressure line, and a control unit controlling a discharge flow rate of the hydraulic pump, wherein the system is configured so that the swing load pressure is not connected to the first pressure compensation valve on the attachment side when a combined operation of the swing device and the attachment is performed.

    Organic light emitting display for adjusting data based on temperature compensation and driving method thereof
    8.
    发明授权
    Organic light emitting display for adjusting data based on temperature compensation and driving method thereof 有权
    基于温度补偿调整数据的有机发光显示器及其驱动方法

    公开(公告)号：US09153164B2

    公开(公告)日：2015-10-06

    申请号：US13916866

    申请日：2013-06-13

    申请人： Jae-Hoon Lee

    发明人： Jae-Hoon Lee

    IPC分类号： G09G3/30 ,  G09G3/32

    CPC分类号： G09G3/3208 ,  G09G2320/0233 ,  G09G2320/041

    摘要： A driving method of an organic light emitting display device includes sensing temperatures of a plurality of areas included in a pixel unit and, when a temperature difference between the respective areas is less than a predetermined reference value, outputting first data that is input from outside. When the temperature difference between the respective areas is equal to or greater than the reference value, the method includes generating second data by changing a grayscale of the first data such that the temperatures of the respective areas are similar to each other, and outputting the second data.

    摘要翻译： 有机发光显示装置的驱动方法包括感测像素单元中包括的多个区域的温度，并且当各个区域之间的温度差小于预定参考值时，输出从外部输入的第一数据。 当各个区域之间的温度差等于或大于参考值时，该方法包括通过改变第一数据的灰度使得各个区域的温度彼此相似而产生第二数据，并且输出第二数据 数据。

    Display apparatus including bi-directional gate drive circuit
    10.
    发明授权
    Display apparatus including bi-directional gate drive circuit 有权
    显示装置包括双向栅极驱动电路

    公开(公告)号：US09047803B2

    公开(公告)日：2015-06-02

    申请号：US13274939

    申请日：2011-10-17

    申请人： Jae-Hoon Lee ,  Chang-Ho Lee ,  Jun-Yong Song ,  Yu-Han Bae

    发明人： Jae-Hoon Lee ,  Chang-Ho Lee ,  Jun-Yong Song ,  Yu-Han Bae

    IPC分类号： G09G3/36 ,  G09G3/00 ,  G09G3/29

    CPC分类号： G09G3/007 ,  G09G3/29 ,  G09G2300/0838 ,  G09G2300/0871 ,  G09G2310/0286 ,  G09G2310/0289

    摘要： A gate drive circuit includes a plurality of driving stages. An n-th (‘n’ is a natural number) driving stage includes a pull-up part, a carry part, a first pull-down part, a first pull-up/down control part and a second pull-up/down control part. The first pull-up/down control part applies a first power signal of an ON voltage to a control terminal of the pull-up part in a forward direction mode, and applies the first power signal of a second OFF voltage to a control terminal of the pull-up part in a reverse direction mode. The second pull-up/down control part applies a second power signal of the second OFF voltage to the control terminal of the pull-up part in the forward direction mode, and applies the second power signal of the ON voltage to the control terminal of the pull-up part in the reverse direction mode.

    摘要翻译： 栅极驱动电路包括多个驱动级。 第n（'n'是自然数）驱动级包括上拉部分，进位部分，第一下拉部分，第一上拉/下拉控制部分和第二上拉/下拉 控制部分。 第一上拉/下拉控制部分向前向模式向上拉部分的控制端施加导通电压的第一电源信号，并将第二OFF电压的第一电源信号施加到 上拉部分处于反向模式。 第二上拉/下拉控制部分将第二OFF电压的第二功率信号以正向模式施加到上拉部分的控制端，并将接通电压的第二功率信号施加到 上拉部分处于反向模式。