中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

29 records (took 0.017 seconds)

    Energy recovery system for hydraulic machine
    11.
    发明授权
    Energy recovery system for hydraulic machine 有权
    液压机能量回收系统

    公开(公告)号：US09290911B2

    公开(公告)日：2016-03-22

    申请号：US13770858

    申请日：2013-02-19

    Applicant: Caterpillar Inc.

    Inventor： Pengfei Ma ,  Tonglin Shang ,  Jiao Zhang ,  Dayao Chen ,  Gang Victor Wen

    IPC: F15B21/14 ,  E02F9/22 ,  F15B1/02 ,  E02F9/12

    CPC classification number: E02F9/22 ,  E02F9/123 ,  E02F9/2217 ,  E02F9/2292 ,  E02F9/2296 ,  F15B1/024 ,  F15B21/14 ,  F15B2211/20507 ,  F15B2211/20546 ,  F15B2211/212 ,  F15B2211/7058 ,  F15B2211/7135

    Abstract: An energy recovery system is disclosed for use with a hydraulic machine. The energy recovery system may have a tank, a pump configured to draw fluid from the tank and pressurize the fluid, an actuator, and an actuator control valve movable to direct pressurized fluid from the pump to the actuator and from the actuator to the tank to move the actuator. The energy recovery system may also have a motor mechanically connected to a rotary device and configured to selectively receive fluid discharged from the actuator, and at least one valve movable to selectively redirect fluid exiting the motor back to the actuator.

    Abstract translation: 公开了一种与液压机一起使用的能量回收系统。 能量回收系统可以具有罐，配置成从罐抽出流体并加压流体的泵，致动器和致动器控制阀，所述致动器和致动器控制阀可移动以将加压流体从泵引导到致动器，并且从致动器引导到罐， 移动执行器。 能量回收系统还可以具有机械地连接到旋转装置并被构造成选择性地接收从致动器排出的流体的电动机，以及至少一个阀，其可移动以选择性地将从马达返回的驱动器重新定向到致动器。

    Hydraulic system recovering swing kinetic and boom potential energy
    12.
    发明授权
    Hydraulic system recovering swing kinetic and boom potential energy 有权
    液压系统恢复摆动动力和动力势能

    公开(公告)号：US09556591B2

    公开(公告)日：2017-01-31

    申请号：US14668678

    申请日：2015-03-25

    Applicant: Caterpillar Inc.

    Inventor： Tonglin Shang ,  Jiao Zhang ,  Pengfei Ma ,  Dayao Chen

    IPC: E02F9/22 ,  E02F3/32 ,  E02F9/20 ,  E02F3/42

    CPC classification number: E02F9/2217 ,  E02F3/32 ,  E02F3/425 ,  E02F9/123 ,  E02F9/128 ,  E02F9/2004 ,  E02F9/2267 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B2211/20507 ,  F15B2211/212 ,  F15B2211/7058 ,  F15B2211/7142 ,  F15B2211/88

    Abstract: Swing kinetic and boom potential energy may be recovered in a machine having a movable work tool, a swing motor for rotating the work tool, a hydraulic cylinder for raising and lowering the work tool, a pump selectively connected to the swing motor and the hydraulic cylinder, and a power source outputting power to drive the pump. The machine may further include a first accumulator, a swing charge valve having a charge set pressure, and a boom charge valve. The swing charge valve selectively fluidly connect the swing motor to the first accumulator, and open to fluidly connect the swing motor to the first accumulator when a swing motor fluid pressure is greater than a charge set pressure of the swing charge valve. The boom charge valve may selectively fluidly connect a head-end chamber of the hydraulic cylinder to the first accumulator when the work tool is lowered.

    Abstract translation: 在具有可移动工作工具的机器，用于旋转工作工具的回转马达，用于升高和降低作业工具的液压缸，可选择地连接到回转马达和液压缸 以及输出驱动泵的动力的电源。 机器还可以包括第一蓄能器，具有充电设定压力的摆动充气阀和吊杆充气阀。 摆动充气阀选择性地将回转马达流体地连接到第一蓄能器，并且当回转马达流体压力大于摆动充气阀的充电设定压力时，打开以将回转马达流体连接到第一累加器。 当工作工具下降时，吊杆充气阀可以选择性地将液压缸的前端室流体连接到第一蓄能器。

    HYDRAULIC SYSTEM HAVING ENERGY RECOVERY
    13.
    发明申请
    HYDRAULIC SYSTEM HAVING ENERGY RECOVERY 审中-公开
    具有能源回收的液压系统

    公开(公告)号：US20150300384A1

    公开(公告)日：2015-10-22

    申请号：US14753600

    申请日：2015-06-29

    Applicant: Caterpillar Inc.

    Inventor： Jiao Zhang ,  Tonglin Shang ,  Peter Spring ,  Pengfei Ma ,  Randal Peterson ,  Rustu Cesur

    IPC: F15B21/14 ,  E02F9/22 ,  E02F9/12 ,  F15B11/024

    CPC classification number: F15B21/14 ,  E02F9/123 ,  E02F9/2217 ,  E02F9/2296 ,  F15B1/02 ,  F15B1/033 ,  F15B11/024 ,  F15B2011/0243 ,  F15B2011/0246 ,  F15B2211/205 ,  F15B2211/212 ,  F15B2211/30575 ,  F15B2211/50527 ,  F15B2211/50554 ,  F15B2211/511 ,  F15B2211/613 ,  F15B2211/625 ,  F15B2211/7058 ,  F15B2211/88

    Abstract: A hydraulic system for a machine is disclosed. The system may have a pump and a motor driven by pressurized fluid from the pump. An accumulator is configured to receive fluid discharged from the motor and to discharge fluid to the motor. The system may include a first valve to selectively communicate the higher pressure of conduits coupled between the pump and motor to the accumulator. A second valve and a third valve can be used to facilitate charging and discharging of the accumulator. The system may include a controller configured to implement a plurality of modes of operation, which each mode of operation may include a different combination of motor deceleration and motor acceleration segments during which the accumulator receives and discharges fluid, respectively. An input may be used to determine the segment of the work cycle.

    Abstract translation: 公开了一种用于机器的液压系统。 该系统可以具有来自泵的加压流体驱动的泵和马达。 蓄能器构造成接收从电动机排出的流体并将流体排放到电动机。 该系统可以包括第一阀，以选择性地将耦合在泵和马达之间的管道的较高压力传递到蓄能器。 可以使用第二阀和第三阀来促进蓄能器的充放电。 该系统可以包括被配置为实现多种操作模式的控制器，每种操作模式可以分别包括电动机减速和电动机加速段的不同组合，在此期间蓄能器分别接收和排出流体。 可以使用输入来确定工作周期的段。

    Energy recovery hydraulic system
    16.
    发明授权
    Energy recovery hydraulic system 有权
    能量回收液压系统

    公开(公告)号：US09086061B2

    公开(公告)日：2015-07-21

    申请号：US13693509

    申请日：2012-12-04

    Applicant: Caterpillar Inc.

    Inventor： Jiao Zhang ,  Gang Wen ,  Pengfei Ma ,  Tonglin Shang ,  Dayao Chen ,  Bryan J. Hillman ,  Vickram Murugesan

    IPC: F15B21/14 ,  F04B7/02 ,  F04B49/00 ,  F15B1/02

    CPC classification number: F04B7/02 ,  F04B49/002 ,  F15B1/024 ,  F15B21/14 ,  F15B2211/20507 ,  F15B2211/212 ,  F15B2211/30565 ,  F15B2211/3058 ,  F15B2211/6306 ,  F15B2211/6313 ,  F15B2211/7053 ,  F15B2211/88

    Abstract: A method and system for accumulating and using recovered hydraulic energy that includes a hydraulic actuator and a pump configured to supply pressurized fluid to the hydraulic actuator. An energy recovery system includes a hydraulic motor, a charge valve and an accumulator configured to store fluid from the hydraulic actuator. The charge valve is operatively connected between the hydraulic actuator and the accumulator and between the accumulator and the hydraulic motor and is configured to place the hydraulic actuator in fluid communication with the accumulator and to place the accumulator in fluid communication with the hydraulic motor. A directional valve is operatively connected between the pump and the hydraulic actuator. The directional valve is configured to place the pump in fluid communication with the hydraulic actuator and to direct the flow of hydraulic fluid exiting the hydraulic actuator to the charge valve in an energy recovery mode.

    Abstract translation: 一种用于累积和使用回收液压能量的方法和系统，包括液压致动器和构造成向液压致动器供应加压流体的泵。 能量回收系统包括液压马达，充气阀和蓄液器，其构造成存储来自液压致动器的流体。 充气阀可操作地连接在液压致动器和蓄能器之间以及蓄能器和液压马达之间，并被构造成使液压致动器与蓄能器流体连通并且使蓄能器与液压马达流体连通。 方向阀可操作地连接在泵和液压致动器之间。 方向阀被配置为将泵与液压致动器流体连通并且以能量回收模式将流出液压致动器的液压流体的流动引导到充气阀。

    HYDRAULIC CONTROL SYSTEM HAVING SWING ENERGY RECOVERY
    17.
    发明申请
    HYDRAULIC CONTROL SYSTEM HAVING SWING ENERGY RECOVERY 有权
    具有振动能量回收的液压控制系统

    公开(公告)号：US20140060031A1

    公开(公告)日：2014-03-06

    申请号：US13718907

    申请日：2012-12-18

    Applicant: CATERPILLAR INC.

    Inventor： Rustu Cesur ,  Lawrence J. Tognetti ,  Pengfei Ma ,  Jiao Zhang ,  Tonglin Shang

    IPC: F15B1/033 ,  F15B21/14 ,  F15B13/04

    CPC classification number: F15B1/033 ,  F15B1/024 ,  F15B13/04 ,  F15B21/082 ,  F15B21/14 ,  F15B2211/20546 ,  F15B2211/212 ,  F15B2211/6306 ,  F15B2211/6313 ,  F15B2211/6336 ,  F15B2211/665 ,  F15B2211/6652 ,  F15B2211/6658 ,  F15B2211/7058 ,  F15B2211/8603 ,  F15B2211/8752 ,  F15B2211/88

    Abstract: A hydraulic control system for a machine is disclosed. The hydraulic control system may have a tank, a pump, and a fluid actuator. The hydraulic control system may further have an accumulator configured to selectively receive pressurized fluid discharged from the fluid actuator and selectively supply pressurized fluid to the fluid actuator. The hydraulic control system may also have a pressure sensor configured to generate a signal indicative of a pressure of the accumulator, a charge valve, a discharge valve, and a controller in communication with the control valve, the charge valve, and the discharge valve. The controller may be configured to detect stall of the fluid actuator, to make a comparison of the pressure of the accumulator with a threshold pressure, and to selectively move the charge valve to charge the accumulator or move the discharge valve to discharge the accumulator during the stall based on the comparison.

    Abstract translation: 公开了一种用于机器的液压控制系统。 液压控制系统可以具有罐，泵和流体致动器。 液压控制系统还可以具有蓄能器，该蓄能器构造成选择性地接收从流体致动器排出的加压流体并且选择性地将加压流体供应到流体致动器。 液压控制系统还可以具有压力传感器，该压力传感器被配置为产生指示蓄能器，充气阀，排放阀和与控制阀，充气阀和排出阀连通的控制器的压力的信号。 控制器可以被配置为检测流体致动器的失速，以使蓄能器的压力与阈值压力进行比较，并且选择性地移动充气阀以对蓄能器充电或移动排放阀以在蓄能器期间释放蓄能器 摊位基于比较。

    Hydraulic control system having swing energy recovery
    20.
    发明授权
    Hydraulic control system having swing energy recovery 有权
    具有摆动能量回收的液压控制系统

    公开(公告)号：US09328744B2

    公开(公告)日：2016-05-03

    申请号：US13718907

    申请日：2012-12-18

    Applicant: Caterpillar Inc.

    Inventor： Rustu Cesur ,  Lawrence J. Tognetti ,  Pengfei Ma ,  Jiao Zhang ,  Tonglin Shang

    IPC: F15B1/00 ,  F15B1/033 ,  F15B13/04 ,  F15B21/14 ,  F15B1/02 ,  F15B21/08

    CPC classification number: F15B1/033 ,  F15B1/024 ,  F15B13/04 ,  F15B21/082 ,  F15B21/14 ,  F15B2211/20546 ,  F15B2211/212 ,  F15B2211/6306 ,  F15B2211/6313 ,  F15B2211/6336 ,  F15B2211/665 ,  F15B2211/6652 ,  F15B2211/6658 ,  F15B2211/7058 ,  F15B2211/8603 ,  F15B2211/8752 ,  F15B2211/88

    Abstract: A hydraulic control system for a machine is disclosed. The hydraulic control system may have a tank, a pump, and a fluid actuator. The hydraulic control system may further have an accumulator configured to selectively receive pressurized fluid discharged from the fluid actuator and selectively supply pressurized fluid to the fluid actuator. The hydraulic control system may also have a pressure sensor configured to generate a signal indicative of a pressure of the accumulator, a charge valve, a discharge valve, and a controller in communication with the control valve, the charge valve, and the discharge valve. The controller may be configured to detect stall of the fluid actuator, to make a comparison of the pressure of the accumulator with a threshold pressure, and to selectively move the charge valve to charge the accumulator or move the discharge valve to discharge the accumulator during the stall based on the comparison.

    Abstract translation: 公开了一种用于机器的液压控制系统。 液压控制系统可以具有罐，泵和流体致动器。 液压控制系统还可以具有蓄能器，该蓄能器构造成选择性地接收从流体致动器排出的加压流体并且选择性地将加压流体供应到流体致动器。 液压控制系统还可以具有压力传感器，该压力传感器被配置为产生指示蓄能器，充气阀，排放阀和与控制阀，充气阀和排出阀连通的控制器的压力的信号。 控制器可以被配置为检测流体致动器的失速，以使蓄能器的压力与阈值压力进行比较，并且选择性地移动充气阀以对蓄能器充电或移动排放阀以在蓄能器期间释放蓄能器 摊位基于比较。

Patent Agency Ranking