Swing Drive Device and Work Machine
    2.
    发明申请
    Swing Drive Device and Work Machine 失效
    摆动驱动装置和作业机

    公开(公告)号:US20080314038A1

    公开(公告)日:2008-12-25

    申请号:US11573866

    申请日:2006-04-10

    IPC分类号: F15B1/027 F15B13/06 F15B11/17

    摘要: A swing control circuit is provided separately from a hydraulic actuator control circuit. The swing control circuit includes a swing pump motor connected to closed circuits of a swing motor through a solenoid valve that serves as a directional control valve. A swing motor generator is connected to the swing pump motor. The swing motor generator is connected to an electric power storage device of a hybrid type drive system. An exterior-connecting passage for feeding hydraulic fluid to hydraulic actuators of a lower structure and a work equipment is drawn from a pipeline between the swing pump motor and the solenoid valve. A connecting passage solenoid valve is disposed in the exterior-connecting passage. The invention enables hydraulic energy generated in the swing system to be directly fed to the outside of the swing system.

    摘要翻译: 与液压致动器控制电路分开设置摆动控制电路。 摆动控制回路包括通过用作方向控制阀的电磁阀连接到回转马达的闭合回路的回转泵马达。 摆动马达发电机连接到回转泵马达。 摆动电动发电机与混合动力驱动系统的蓄电装置连接。 用于将液压流体供给到下部结构的液压致动器和作业设备的外部连接通道从摆​​动泵马达和电磁阀之间的管道中抽出。 连接通道电磁阀设置在外部连接通道中。 本发明使得摆动系统中产生的液压能量直接进入摆动系统的外部。

    Swing drive device and work machine
    3.
    发明授权
    Swing drive device and work machine 失效
    摆动驱动装置和作业机

    公开(公告)号:US07565801B2

    公开(公告)日:2009-07-28

    申请号:US11573866

    申请日:2006-04-10

    IPC分类号: F16D31/02

    摘要: A swing control circuit is provided separately from a hydraulic actuator control circuit. The swing control circuit includes a swing pump motor connected to closed circuits of a swing motor through a solenoid valve that serves as a directional control valve. A swing motor generator is connected to the swing pump motor. The swing motor generator is connected to an electric power storage device of a hybrid type drive system. An exterior-connecting passage for feeding hydraulic fluid to hydraulic actuators of a lower structure and a work equipment is drawn from a pipeline between the swing pump motor and the solenoid valve. A connecting passage solenoid valve is disposed in the exterior-connecting passage. The invention enables hydraulic energy generated in the swing system to be directly fed to the outside of the swing system.

    摘要翻译: 与液压致动器控制电路分开设置摆动控制电路。 摆动控制回路包括通过用作方向控制阀的电磁阀连接到回转马达的闭合回路的回转泵马达。 摆动马达发电机连接到回转泵马达。 摆动电动发电机与混合动力驱动系统的蓄电装置连接。 用于将液压流体供给到下部结构的液压致动器和作业设备的外部连接通道从摆​​动泵马达和电磁阀之间的管道中抽出。 连接通道电磁阀设置在外部连接通道中。 本发明使得摆动系统中产生的液压能量直接进入摆动系统的外部。

    WORK MACHINE
    4.
    发明申请
    WORK MACHINE 失效
    工作机器

    公开(公告)号:US20090077837A1

    公开(公告)日:2009-03-26

    申请号:US11575045

    申请日:2006-04-10

    IPC分类号: E02F9/20 F15B21/14 E02F9/22

    摘要: A boom control circuit for controlling hydraulic fluid fed to a boom cylinder is provided separately and independently from a travel/stick/bucket control circuit, which serves to control hydraulic fluid fed to travel motors, a stick cylinder, and a bucket cylinder. The boom control circuit includes a boom pump, an energy recovery motor disposed in a return passage through which return fluid from the boom cylinder 8bmc passes, and a boom motor generator connected to the energy recovery motor. The aforementioned boom pump is connected through a clutch to the boom motor generator. The invention is capable of providing a work machine of which a boom control circuit is adapted to function independently so that the flow rate required by the boom control circuit can be easily ensured.

    摘要翻译: 与用于控制供给到动臂缸的液压流体的动臂控制回路分别独立地设置在用于控制供给行进马达,棒筒和铲斗缸的液压流体的行程/斗杆/铲斗控制回路。 动臂控制回路包括动臂泵,设置在从动臂缸8bmc返回的流体通过的返回通路中的能量回收马达以及与能量回收马达连接的动臂马达发电机。 上述悬臂泵通过离合器连接到起重臂电动发电机。 本发明能够提供一种工作机械,其动臂控制电路适于独立地起作用,从而可以容易地确保起重臂控制电路所需的流量。

    Work machine
    6.
    发明授权
    Work machine 失效
    工作机

    公开(公告)号:US07562472B2

    公开(公告)日:2009-07-21

    申请号:US11575045

    申请日:2006-04-10

    IPC分类号: E02F5/02 F16D31/02

    摘要: A boom control circuit for controlling hydraulic fluid fed to a boom cylinder is provided separately and independently from a travel/stick/bucket control circuit, which serves to control hydraulic fluid fed to travel motors, a stick cylinder, and a bucket cylinder. The boom control circuit includes a boom pump, an energy recovery motor disposed in a return passage through which return fluid from the boom cylinder 8bmc passes, and a boom motor generator connected to the energy recovery motor. The aforementioned boom pump is connected through a clutch to the boom motor generator. The invention is capable of providing a work machine of which a boom control circuit is adapted to function independently so that the flow rate required by the boom control circuit can be easily ensured.

    摘要翻译: 与用于控制供给到动臂缸的液压流体的动臂控制回路分别独立地设置在用于控制供给行进马达,棒筒和铲斗缸的液压流体的行程/斗杆/铲斗控制回路。 动臂控制回路包括动臂泵,设置在从动臂缸8bmc返回的流体通过的返回通路中的能量回收马达以及与能量回收马达连接的动臂马达发电机。 上述悬臂泵通过离合器连接到起重臂电动发电机。 本发明能够提供一种工作机械,其动臂控制电路适于独立地起作用,从而可以容易地确保动臂控制电路所需的流量。

    Construction machine
    8.
    发明授权
    Construction machine 失效
    施工机械

    公开(公告)号:US06378231B1

    公开(公告)日:2002-04-30

    申请号:US09601104

    申请日:2000-09-01

    IPC分类号: E02F502

    摘要: In a construction machine provided with a control unit for outputting actuating commands to actuators based on operating signals from operating levers, interlocking relationships between the operating levers and the actuators can be set as desired respectively, while avoiding enlargement of the memory. Interlocking relationships desired by an operator are adapted to be input into a control unit from a service tool, and the control unit is provided with a memory for rewritably storing the interlocking relationships thus input.

    摘要翻译: 在具有用于基于来自操作杆的操作信号向致动器输出致动指令的控制单元的施工机械中,可以分别根据需要设置操作杆和致动器之间的互锁关系,同时避免存储器的扩大。 操作者适于从服务工具输入到控制单元中,并且控制单元设置有用于可重写地存储由此输入的互锁关系的存储器。

    Fan revolution speed control method
    9.
    发明授权
    Fan revolution speed control method 失效
    风机转速控制方式

    公开(公告)号:US07275368B2

    公开(公告)日:2007-10-02

    申请号:US10519904

    申请日:2004-03-18

    IPC分类号: F01P7/04 F01P5/04

    CPC分类号: F04D27/004 F01P7/044

    摘要: The invention is a fan revolution control method for controlling a pump-motor system, by controlling the fan revolution speed of a cooling fan adapted to be rotated by a fan motor to cool cooling target fluids. The pump-motor system drives the fan motor by a hydraulic fluid fed from a fan pump driven by an engine. The pump-motor system is controlled so the fan revolution speed starts from the minimum fan revolution speed when the engine is started up; the minimum fan revolution speed is maintained for at least several seconds; after the elapse of several seconds, the fan revolution speed is gradually increased from the minimum fan revolution speed. The fan revolution speed reaches a target fan revolution speed over a period of at least several seconds. The method prevents generation of peak pressure or pressure hunting.

    摘要翻译: 本发明是一种风扇转速控制方法,用于通过控制适于由风扇电动机旋转的冷却风扇的风扇转速来冷却冷却目标流体来控制泵电动机系统。 泵马达系统通过从由发动机驱动的风扇泵供给的液压流体来驱动风扇马达。 控制泵电机系统,使风扇转速从发动机启动时的最小风扇转速开始; 最小风扇转速保持至少几秒钟; 经过几秒钟后,风扇转速从最小风扇转速逐渐增加。 风扇转速在至少几秒钟的时间内达到目标风扇转速。 该方法防止产生峰值压力或压力波动。

    Method for controlling number of revolution of fan
    10.
    发明申请
    Method for controlling number of revolution of fan 失效
    控制风机转速的方法

    公开(公告)号:US20050207899A1

    公开(公告)日:2005-09-22

    申请号:US10519905

    申请日:2004-03-18

    申请人: Hideto Furuta

    发明人: Hideto Furuta

    摘要: Actual temperatures of intake air, hydraulic oil, and coolant, to be cooled by a cooling fan, are detected. Target fan revolution speeds are determined by PI control units based on differences between the actual temperatures and target temperatures. The cooling fan is controlled based on the target fan revolution speeds. To restrict accumulation of negative integral elements when performing integration by the PI control units an integration start control system adapted to control the timing for each PI control unit to initiate integration is provided. Target temperatures for initiating integration are respectively set, and control is performed so that integral elements of each PI control unit are kept invalid until the actual temperature of the corresponding cooling target fluid, i.e. the intake air, the hydraulic oil, or the coolant, reaches the corresponding target temperature. Delay in rise of fan revolution speed is prevented.

    摘要翻译: 检测到由冷却风扇冷却的进气,液压油和冷却液的实际温度。 目标风扇转速由PI控制单元根据实际温度和目标温度之间的差异来确定。 冷却风扇根据目标风扇转速进行控制。 为了限制由PI控制单元进行积分时的负积分元件的积累,提供了适合于控制每个PI控制单元启动集成的定时的积分启动控制系统。 分别设定用于启动积分的目标温度,并且进行控制,使得每个PI控制单元的积分元件保持无效,直到相应的冷却目标流体(即进气,液压油或冷却剂)的实际温度达到 相应的目标温度。 防止风扇转速上升的延迟。