Hybrid construction machine
    1.
    发明授权
    Hybrid construction machine 有权
    混合式施工机

    公开(公告)号:US08950180B2

    公开(公告)日:2015-02-10

    申请号:US13427471

    申请日:2012-03-22

    IPC分类号: E02F9/12 E02F9/20 E02F9/22

    摘要: A hybrid construction machine drives the upper swing structure using a hydraulic motor and an electric motor together and is capable of regenerating the energy of the upper swing structure in deceleration or stopping into electric power and using the regenerated electric power for assisting the hydraulic motor for driving the upper swing structure. The opening area characteristics of a meter-out restrictor and a bleed-off restrictor of a swing directional control valve are set to become larger than for construction machines driving the upper swing structure with the hydraulic motor alone. Torque of the electric motor is controlled so that the total sum of the actual torque occurring in the hydraulic and electric motors in deceleration or acceleration of the hydraulic motor equals the torque occurring when the opening area of the meter-out restrictor or the bleed-off restrictor is set at the prescribed opening area.

    摘要翻译: 混合动力施工机械使用液压马达和电动机一起驱动上部摆动结构,能够以减速或停止电力再生上部摆动结构的能量,并且使用再生电力来辅助液压马达驱动 上摆动结构。 摆动方向控制阀的出口限流器和泄放限制器的开口面积特性被设定为大于仅用液压马达驱动上部摆动结构的建筑机械的开口面积特性。 控制电动机的扭矩,使得在液压马达的减速或加速中发生在液压马达和电动马达中的实际扭矩的总和等于当出口限流器的开口面积或泄放 限流器设置在规定的开口区域。

    Construction machine having swing body
    2.
    发明授权
    Construction machine having swing body 有权
    施工机具有摆动体

    公开(公告)号:US09020707B2

    公开(公告)日:2015-04-28

    申请号:US13877716

    申请日:2011-10-05

    IPC分类号: E02F9/20 E02F9/22 E02F9/12

    摘要: Disclosed is a hybrid-type construction machine equipped with a swing hydraulic motor 27 and a swing electric motor 25 in combination to save energy, the construction machine ensuring high operability of a swing body 20 and providing high energy efficiency. In accordance with the amount of manipulation of a swing control lever 72, the construction machine changes a rate of a torque of the swing electric motor 25 with respect to that of the swing hydraulic motor 27. The construction machine also controls a relief pressure and the torque of the swing electric motor 25 in accordance with the amount of manipulation of a swing control lever 72, a pressure of the swing hydraulic motor 27, and a rotating speed of the swing electric motor 25.

    摘要翻译: 公开了一种混合型施工机械,其组合有摆动液压马达27和摆动马达25,以节省能量,施工机械确保了摆动体20的高可操作性并提供高能量效率。 根据摆动控制杆72的操作量,施工机械相对于回转液压马达27的扭矩电动机25的扭矩的变化率改变。施工机械还控制溢流压力 根据回转控制杆72的操作量,摆动液压马达27的压力和摆动电动机25的转速,摆动电动机25的转矩。

    CONSTRUCTION MACHINE HAVING SWING BODY
    4.
    发明申请
    CONSTRUCTION MACHINE HAVING SWING BODY 有权
    具有振动体的建筑机械

    公开(公告)号:US20130195597A1

    公开(公告)日:2013-08-01

    申请号:US13877716

    申请日:2011-10-05

    IPC分类号: E02F9/20

    摘要: Disclosed is a hybrid-type construction machine equipped with a swing hydraulic motor 27 and a swing electric motor 25 in combination to save energy, the construction machine ensuring high operability of a swing body 20 and providing high energy efficiency.In accordance with the amount of manipulation of a swing control lever 72, the construction machine changes a rate of a torque of the swing electric motor 25 with respect to that of the swing hydraulic motor 27. The construction machine also controls a relief pressure and the torque of the swing electric motor 25 in accordance with the amount of manipulation of a swing control lever 72, a pressure of the swing hydraulic motor 27, and a rotating speed of the swing electric motor 25.

    摘要翻译: 公开了一种混合型施工机械,其组合有摆动液压马达27和摆动马达25,以节省能量,施工机械确保了摆动体20的高可操作性并提供高能量效率。 根据摆动控制杆72的操作量,施工机械相对于回转液压马达27的扭矩电动机25的扭矩的变化率改变。施工机械还控制溢流压力 根据回转控制杆72的操作量,摆动液压马达27的压力和摆动电动机25的转速,摆动电动机25的转矩。

    Hydraulic drive system for hydraulic working machine
    6.
    发明授权
    Hydraulic drive system for hydraulic working machine 有权
    液压工程机液压驱动系统

    公开(公告)号:US09249879B2

    公开(公告)日:2016-02-02

    申请号:US13805913

    申请日:2011-07-26

    摘要: A hydraulic drive system designed so that while maintaining intact a structure of a relief valve having a shockless function, the drive unit hydraulic drive system facilitates changing a driving pressure or braking pressure of a hydraulic swing motor and hence, changing a maximum driving torque or braking torque of the hydraulic swing motor. Inside a swing motor unit is arranged a first swinging relief valve provided with a shockless function to limit a driving pressure or braking pressure of the hydraulic swing motor in order to prevent the pressure from exceeding a first setting pressure. Also, a second swinging relief valve is provided for limiting the driving pressure or braking pressure of the hydraulic swing motor in order to prevent the pressure from exceeding a second setting pressure that is lower than the first setting pressure.

    摘要翻译: 一种液压驱动系统,其设计成在保持完整的具有无震动功能的安全阀的结构的同时,驱动单元液压驱动系统有助于改变液压回转马达的驱动压力或制动压力,因此改变最大驱动转矩或制动 液压回转马达的扭矩。 在摆动马达单元内设置有第一摆动释放阀,其具有无震动功能,以限制液压摆动马达的驱动压力或制动压力,以防止压力超过第一设定压力。 而且,为了防止压力超过低于第一设定压力的第二设定压力,设置有用于限制液压回转马达的驱动压力或制动压力的第二摆动安全阀。

    HYDRAULIC DRIVE SYSTEM FOR HYDRAULIC WORKING MACHINE
    7.
    发明申请
    HYDRAULIC DRIVE SYSTEM FOR HYDRAULIC WORKING MACHINE 有权
    液压工作机液压驱动系统

    公开(公告)号:US20130139678A1

    公开(公告)日:2013-06-06

    申请号:US13805913

    申请日:2011-07-26

    IPC分类号: E02F9/22

    摘要: A hydraulic drive system designed so that while maintaining intact a structure of a relief valve having a shockless function, the drive unit hydraulic drive system facilitates changing a driving pressure or braking pressure of a hydraulic swing motor and hence, changing a maximum driving torque or braking torque of the hydraulic swing motor. Inside a swing motor unit is arranged a first swinging relief valve provided with a shockless function to limit a driving pressure or braking pressure of the hydraulic swing motor in order to prevent the pressure from exceeding a first setting pressure. Also, a second swinging relief valve is provided for limiting the driving pressure or braking pressure of the hydraulic swing motor in order to prevent the pressure from exceeding a second setting pressure that is lower than the first setting pressure.

    摘要翻译: 一种液压驱动系统,其设计成在保持完整的具有无震动功能的安全阀的结构的同时,驱动单元液压驱动系统有助于改变液压回转马达的驱动压力或制动压力,因此改变最大驱动转矩或制动 液压回转马达的扭矩。 在摆动马达单元内设置有第一摆动释放阀,其具有无震动功能,以限制液压摆动马达的驱动压力或制动压力,以防止压力超过第一设定压力。 而且,为了防止压力超过低于第一设定压力的第二设定压力,设置有用于限制液压回转马达的驱动压力或制动压力的第二摆动安全阀。

    HYBRID CONSTRUCTION MACHINE
    9.
    发明申请
    HYBRID CONSTRUCTION MACHINE 有权
    混合建筑机械

    公开(公告)号:US20130197768A1

    公开(公告)日:2013-08-01

    申请号:US13817913

    申请日:2011-08-18

    IPC分类号: G06F17/00

    摘要: [Problem] To provide a hybrid construction machine which can provide the same operation feeling as an ordinary construction machine that is not hybrid without changing the discharge flow rate of a hydraulic pump even when the rotation speed of an engine is changed according to power absorbed by the hydraulic pump.[Solution] A hybrid construction machine is provided with a variable displacement hydraulic pump 1 which supplies hydraulic oil to a hydraulic actuator, an engine 2 which is provided to be able to drive and rotate the hydraulic pump 1, an electric motor 3 which is provided to be able to drive and rotate the hydraulic pump 1, an engine control dial 4, a controller 4 and an operating lever 5. The controller changes the rotation speed of the engine 2 to reduce fuel consumption according to power generated by the engine 2, and changes displacement of the hydraulic pump 1 based on the rotation speed of the engine 2, the dial position of the engine control dial 4 and the amount of operation on the operating lever 5.

    摘要翻译: [问题]提供一种混合式施工机械,其能够提供与普通施工机械相同的操作感觉,即使在不改变液压泵的排出流量的情况下,即使当发动机的转速根据由 液压泵。 [解决方案]混合动力施工机械设置有可变液压泵1,其向液压致动器供应液压油,发动机2设置成能够驱动和旋转液压泵1;电动机3,其设置有 能够驱动和旋转液压泵1,发动机控制转盘4,控制器4和操作杆5.控制器根据发动机2产生的动力改变发动机2的转速以减少燃料消耗, 并且基于发动机2的转速,发动机控制转盘4的拨盘位置和操作杆5上的操作量来改变液压泵1的位移。