WORKING MACHINE DRIVING UNIT
    2.
    发明公开
    WORKING MACHINE DRIVING UNIT 审中-公开
    ANTRIEBSEINHEITFÜRARBEITSMASCHINE

    公开(公告)号:EP1571352A1

    公开(公告)日:2005-09-07

    申请号:EP03754149.7

    申请日:2003-10-16

    IPC分类号: F15B11/16 E02F9/22

    摘要: A driving device of a work machine, such as a hydraulic shovel, includes a power generator (32) adapted to be driven by an engine (31), and a power storage means (33) for storing the electric power generated by the power generator (32). Electric motors (45) and a motor generator (54), each of which is adapted to be operated by electric power supplied from either one of or both the power generator (32) and the power storage means (33), respectively drive pumps (46) and a pump motor (52). Supporting circuits (61),(63),(65) for feeding supporting hydraulic oil are provided between a plurality of driving circuits (41),(42),(43) that serve to drive a plurality of hydraulic actuators of a working unit by means of oil hydraulics generated by the pumps (46) and the pump motor (52). By enabling the plurality of driving circuits to effectively share excess energy, the invention makes possible a compact construction of a driving device of a work machine.

    摘要翻译: 工作机械的驱动装置,例如液压挖掘机,包括适于由发动机(31)驱动的发电机(32)和用于存储由发电机产生的电力的蓄电装置(33) (32)。 电动机(45)和电动发电机(54)分别驱动泵(其中,电动发电机)分别由发电机(32)和蓄电装置(33)中的任一个或两者供给的电力进行操作, 46)和泵马达(52)。 在用于驱动工作单元的多个液压致动器的多个驱动回路(41),(42),(43)之间设置用于供给支撑液压油的支撑回路(61),(63),(65) 通过由泵(46)和泵马达(52)产生的油液压。 通过使多个驱动电路能够有效地共享多余的能量,本发明使作业机械的驱动装置的结构紧凑化。

    Verlustarmer Antrieb für einen hydraulischen Aktuator
    3.
    发明公开
    Verlustarmer Antrieb für einen hydraulischen Aktuator 失效
    Verlustarmer Antriebfüreinen hydraulischen Aktuator

    公开(公告)号:EP1288507A2

    公开(公告)日:2003-03-05

    申请号:EP02023249.2

    申请日:1996-12-21

    发明人: Zervas, Bernhard

    IPC分类号: F15B11/17 F15B7/00

    摘要: Die Erfindung betrifft einen Antrieb für einen hydraulischen, doppelt wirkenden Aktuator (1), der zwei Arbeitskammern (9,11) umfasst, deren Volumen veränderbar ist und die mittels eines durch Volumenveränderung angetriebenen Aktuatorelements (5) voneinander getrennt sind, und der zwei die Arbeitskammern (9,11) mit einem Hydraulikmedium versorgenden Pumpen (15,15') umfasst. Dieser zeichnet sich dadurch aus, dass jeder Pumpe (15,15') jeweils eine als Elektromotor (19,19') ausgebildete Antriebseinrichtung (17,17') zur Abgabe voneinander unterschiedlich einstellbarer Fördermengen zugeordnet ist, dass die Elektromotoren (19,19') über jeweils eine Steuerleitung (37,37') mit einer Ansteuerung (35) verbunden sind, und dass jeder Arbeitskammer (9,11) jeweils eine Pumpe (15,15') direkt zugeordnet ist, wobei die jeweilige Pumpe (15,15') aus einem Tank (25) in die Arbeitskammer (9,11) fördert oder das Hydraulikmedium aus der Arbeitskammer (9,11) über die Zuleitung (13,13') zu der jeweiligen Pumpe (15,15') zurückgedrückt wird.

    摘要翻译: 液压流体由第一双向泵(15)供应,并且第二泵(15')也以受控的速度旋转。 每个泵都提供一个独立的入口(61.1或61.2),最好是四位阀装置(59),其出口(63.1,63.1'等)提供分开的双作用活塞致动器(1.1-1.3)和液压马达 1.4)。 这些泵由独立的电动机(19,19')驱动,受到公共控制单元(57)的驱动,公共控制单元(57)包含用于每个致动器的驱动器和处理电路,该传感器具有传感器(39),可选地结合有数字转换器用于发信号通知位置,速度和 /或活塞(5)或活塞杆(7)的加速度。

    HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINERY
    4.
    发明公开
    HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINERY 审中-公开
    HYDRAULISCHES系统FÜREINE BAUMASCHINE

    公开(公告)号:EP2514880A4

    公开(公告)日:2017-06-21

    申请号:EP10837778

    申请日:2010-11-03

    发明人: KIM JEUNG HWA

    摘要: The present invention relates to a hydraulic system for construction machinery, which is applied to construction machinery provided with a steering unit (20) for controlling steering of equipment, and a main control valve (30) for controlling operating of a work tool, and includes: a main pump (10) for discharging working fluid supplied to the steering unit (20) and the main control valve (30); a load sensing pressure sensor (60) for sensing a load sensing pressure of the steering unit (20); a priority valve (22) installed in a supply passage for the working fluid discharged from the main pump (10), for dividing and supplying the working fluid discharged from the main pump (10) to the steering unit (20) and the main control valve (30), to correspond to the load sensing pressure; an auxiliary pump (40) for supplementing working fluid to the supply passage supplying the working fluid divided by the priority valve (22) to the steering unit (20); an electric motor (50) for operating the auxiliary pump (40); and a controller (80) for operating the electric motor (50) when the load sensing pressure is greater than a reference load sensing pressure, and additionally supplying working fluid discharged from the auxiliary pump (40) to the steering unit (20).

    摘要翻译: 本发明涉及一种用于工程机械的液压系统,该液压系统应用于具有用于控制设备的转向的转向单元(20)和用于控制作业工具的操作的主控制阀(30)的工程机械,并且包括: :主泵(10),用于排出供给到转向单元(20)和主控制阀(30)的工作流体; 负载传感压力传感器(60),用于感测所述转向单元(20)的负载传感压力; 优先阀(22),其安装在从主泵(10)排出的工作流体的供给通道中,用于将从主泵(10)排出的工作流体分流并供给到转向单元(20);主控制器 阀(30),以对应于所述负载感测压力; 辅助泵(40),其用于将工作流体补充到将由优先阀(22)划分的工作流体供应到转向单元(20)的供应通道; 用于操作辅助泵(40)的电动机(50); 和控制器(80),用于当负载传感压力大于参考负载传感压力时操作电动机(50),并且另外将从辅助泵(40)排出的工作流体供应到转向单元(20)。

    Hydraulic driving apparatus for working machine
    5.
    发明公开
    Hydraulic driving apparatus for working machine 有权
    水力发电机

    公开(公告)号:EP2918735A3

    公开(公告)日:2015-10-07

    申请号:EP15157934.9

    申请日:2015-03-06

    IPC分类号: E02F9/22 F02D29/04

    摘要: Provided is a hydraulic driving apparatus capable of improving fuel efficiency by effective utilization of a pump displacement volume of a hydraulic pump. The apparatus includes a controller (30) including a calculation section (32) calculating a temporary target engine rotation speed corresponding to the operation amount of an engine operation member, a calculation section (34) calculating a temporary target pump displacement volume based on a first-control target pump displacement volume corresponding to the operation amount of an actuator operation member and a second-control target pump displacement volume corresponding to a pump load pressure, and a command section (36) calculating a final target engine rotation speed and a final target pump displacement volume to output commands. The command section (36) calculates a target pump discharge amount from the temporary target engine rotation speed and the temporary target pump displacement volume, sets the final target pump displacement volume to one larger than the temporary target pump displacement volume, and sets the final target engine rotation speed to one being lower than the temporary target engine rotation speed and allowing a pump discharge amount equivalent to the target pump discharge amount to be obtained.

    摘要翻译: 提供一种液压驱动装置,其能够通过有效利用液压泵的泵排量来提高燃料效率。 该装置包括控制器(30),其包括:计算部(32),计算与发动机操作部件的运转量对应的临时目标发动机转速;计算部(34),基于第一 - 对应于致动器操作构件的操作量的控制目标泵位移量和对应于泵负载压力的第二控制目标泵排量,以及计算最终目标发动机转速和最终目标的命令部(36) 泵位移量输出命令。 指令部(36)根据临时目标发动机转速和临时目标泵排出量计算出目标泵排出量,将最终目标泵排出量设定为比临时目标泵排出量大一个,并将最终目标 发动机转速低于临时目标发动机转速,并且允许获得与目标泵排出量相当的泵排出量。

    HYDRAULIC DRIVING APPARATUS FOR WORKING MACHINE
    7.
    发明授权
    HYDRAULIC DRIVING APPARATUS FOR WORKING MACHINE 有权
    工作机液压驱动装置

    公开(公告)号:EP2918735B1

    公开(公告)日:2018-05-09

    申请号:EP15157934.9

    申请日:2015-03-06

    IPC分类号: E02F9/22 F02D29/04

    摘要: Provided is a hydraulic driving apparatus capable of improving fuel efficiency by effective utilization of a pump displacement volume of a hydraulic pump. The apparatus includes a controller (30) including a calculation section (32) calculating a temporary target engine rotation speed corresponding to the operation amount of an engine operation member, a calculation section (34) calculating a temporary target pump displacement volume based on a first-control target pump displacement volume corresponding to the operation amount of an actuator operation member and a second-control target pump displacement volume corresponding to a pump load pressure, and a command section (36) calculating a final target engine rotation speed and a final target pump displacement volume to output commands. The command section (36) calculates a target pump discharge amount from the temporary target engine rotation speed and the temporary target pump displacement volume, sets the final target pump displacement volume to one larger than the temporary target pump displacement volume, and sets the final target engine rotation speed to one being lower than the temporary target engine rotation speed and allowing a pump discharge amount equivalent to the target pump discharge amount to be obtained.

    Verlustarmer Antrieb für einen hydraulischen Aktuator
    9.
    发明公开
    Verlustarmer Antrieb für einen hydraulischen Aktuator 失效
    液压致动器的低损耗驱动

    公开(公告)号:EP1288507A3

    公开(公告)日:2003-05-07

    申请号:EP02023249.2

    申请日:1996-12-21

    发明人: Zervas, Bernhard

    IPC分类号: F15B7/00 F15B21/14 F15B11/08

    摘要: Die Erfindung betrifft einen Antrieb für einen hydraulischen, doppelt wirkenden Aktuator (1), der zwei Arbeitskammern (9,11) umfasst, deren Volumen veränderbar ist und die mittels eines durch Volumenveränderung angetriebenen Aktuatorelements (5) voneinander getrennt sind, und der zwei die Arbeitskammern (9,11) mit einem Hydraulikmedium versorgenden Pumpen (15,15') umfasst. Dieser zeichnet sich dadurch aus, dass jeder Pumpe (15,15') jeweils eine als Elektromotor (19,19') ausgebildete Antriebseinrichtung (17,17') zur Abgabe voneinander unterschiedlich einstellbarer Fördermengen zugeordnet ist, dass die Elektromotoren (19,19') über jeweils eine Steuerleitung (37,37') mit einer Ansteuerung (35) verbunden sind, und dass jeder Arbeitskammer (9,11) jeweils eine Pumpe (15,15') direkt zugeordnet ist, wobei die jeweilige Pumpe (15,15') aus einem Tank (25) in die Arbeitskammer (9,11) fördert oder das Hydraulikmedium aus der Arbeitskammer (9,11) über die Zuleitung (13,13') zu der jeweiligen Pumpe (15,15') zurückgedrückt wird.

    Hydraulic system
    10.
    发明公开
    Hydraulic system 审中-公开
    液压系统

    公开(公告)号:EP2990664A1

    公开(公告)日:2016-03-02

    申请号:EP14182514.1

    申请日:2014-08-27

    发明人: Vad, Claus

    IPC分类号: F15B11/08

    摘要: A hydraulic system (200) is provided comprising,
    - at least one hydraulic actuator (230),
    - means (220...223) in fluid communication with the at least one hydraulic actuator (230) for selectively distributing hydraulic fluid to and from that at least one hydraulic actuator (230),
    - at least one source (210, 211) of hydraulic fluid in fluid communication with that distribution means (220...223)
    - for supplying hydraulic fluid to the at least one hydraulic actuator (230), or
    - for draining away hydraulic fluid from the at least one hydraulic actuator (230),

    - means (217) communicating with the at least one source for controlling
    - pressurizing of the hydraulic fluid into the at least one actuator (230), or
    - the draining away of the hydraulic fluid from the at least one actuator (230).


    Further, a pitch control system for a wind turbine and a method for operating a hydraulic system are suggested.

    摘要翻译: 提供液压系统(200),其包括: - 至少一个液压致动器(230); - 与所述至少一个液压致动器(230)流体连通的装置(220 ... 223),用于选择性地将液压流体分配至和来自 至少一个液压致动器(230) - 与该分配装置(220 ... 223)流体连通的液压流体的至少一个源(210,211) - 用于将液压流体供应到所述至少一个液压致动器 或 - 用于排出来自所述至少一个液压致动器(230)的液压流体, - 与所述至少一个源连通的装置(217),用于控制 - 将所述液压流体加压到所述至少一个致动器(230) 或者 - 从所述至少一个致动器(230)排出液压流体。 此外,提出了用于风力涡轮机的桨距控制系统和用于操作液压系统的方法。