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    Hydraulic Drive Device for Construction Machine
    1.
    发明申请
    Hydraulic Drive Device for Construction Machine 有权
    施工机械液压驱动装置

    公开(公告)号：US20110192156A1

    公开(公告)日：2011-08-11

    申请号：US13009302

    申请日：2011-01-19

    申请人： Kensuke Sato ,  Hiroyuki Azuma ,  Tsuyoshi Nakamura ,  Yasuo Okano ,  Kouji Ishikawa ,  Mitsuhiko Kanehama

    发明人： Kensuke Sato ,  Hiroyuki Azuma ,  Tsuyoshi Nakamura ,  Yasuo Okano ,  Kouji Ishikawa ,  Mitsuhiko Kanehama

    IPC分类号： F04B49/02

    CPC分类号： E02F9/2246 ,  E02F9/2235

    摘要： A hydraulic drive device for a construction machine which can reliably judge whether or not the state of the construction machine is appropriate for stopping an engine is provided. The hydraulic drive device includes: a main pump 13; a regulator 15 that controls the discharge rate of the main pump 13 by a control pressure Pc; an engine 16 that drives the main pump 13; an engine stopping unit 83 that stops the engine 16 when a predetermined state of the construction machine has continued for a predetermined period of time; and a pressure sensor 72 that detects the control pressure Pc. The engine stopping unit 83 has a control signal judging unit 81 that judges whether or not the control pressure Pc detected by the pressure sensor 72 is lower than a predetermined pressure value Pc1, as a judgment of whether or not the predetermined state of the construction machine is present. The engine stopping unit 83 stops the engine 16 when a judgment result that the control pressure Pc is lower than the predetermined pressure value Pc1 is obtained. The predetermined pressure value Pc1 is a pressure value for controlling the discharge rate of the main pump 13 to the lower limit for use in the construction machine.

    摘要翻译： 提供一种用于建筑机械的液压驱动装置，其可以可靠地判断施工机械的状态是否适合于停止发动机。 液压驱动装置包括：主泵13; 调节器15，其通过控制压力Pc控制主泵13的排出速度; 驱动主泵13的发动机16; 发动机停止单元83，其在建筑机械的预定状态持续预定时间段时停止发动机16; 以及检测控制压力Pc的压力传感器72。 发动机停止单元83具有控制信号判断单元81，判定由压力传感器72检测到的控制压力Pc是否低于预定压力值Pc1，作为对施工机械的预定状态的判断 存在。 当获得控制压力Pc低于预定压力值Pc1的判定结果时，发动机停止单元83停止发动机16。 预定压力值Pc1是用于将主泵13的排出速度控制在建筑机械中使用的下限的压力值。

    Hydraulic drive device for construction machine
    4.
    发明授权
    Hydraulic drive device for construction machine 有权
    施工机械液压驱动装置

    公开(公告)号：US08726648B2

    公开(公告)日：2014-05-20

    申请号：US13009302

    申请日：2011-01-19

    申请人： Kensuke Sato ,  Hiroyuki Azuma ,  Tsuyoshi Nakamura ,  Yasuo Okano ,  Kouji Ishikawa ,  Mitsuhiko Kanehama

    发明人： Kensuke Sato ,  Hiroyuki Azuma ,  Tsuyoshi Nakamura ,  Yasuo Okano ,  Kouji Ishikawa ,  Mitsuhiko Kanehama

    IPC分类号： F16D31/02

    CPC分类号： E02F9/2246 ,  E02F9/2235

    摘要： A hydraulic drive device for a construction machine includes an engine stopping unit and a discharge rate control unit. The engine stopping unit stops the engine when a predetermined state of the construction machine has continued for a predetermined period of time. The discharge rate control unit controls a discharge rate control pressure being input to the regulator, when an exhaust emission control device performs regeneration control, or performs warm-up control, and the gate lock lever is in the open position.

    摘要翻译： 用于建筑机械的液压驱动装置包括发动机停止单元和排出速率控制单元。 当建筑机械的预定状态持续预定时间段时，发动机停止单元停止发动机。 当废气排放控制装置执行再生控制或进行预热控制，并且门锁定杆处于打开位置时，排出速率控制单元控制输入到调节器的排出速度控制压力。

    Hydraulic Drive Device for Working Machine
    5.
    发明申请
    Hydraulic Drive Device for Working Machine 有权
    液压驱动装置

    公开(公告)号：US20140090369A1

    公开(公告)日：2014-04-03

    申请号：US14118141

    申请日：2012-05-17

    申请人： Tsuyoshi Nakamura ,  Kazunori Nakamura ,  Yasuo Okano ,  Kouji Ishikawa ,  Kensuke Sato ,  Hiroyuki Azuma ,  Mitsuhiko Kanehama ,  Yusuke Kajita

    发明人： Tsuyoshi Nakamura ,  Kazunori Nakamura ,  Yasuo Okano ,  Kouji Ishikawa ,  Kensuke Sato ,  Hiroyuki Azuma ,  Mitsuhiko Kanehama ,  Yusuke Kajita

    IPC分类号： F15B15/20

    CPC分类号： F15B15/20 ,  E02F9/123 ,  E02F9/2217 ,  E02F9/2242 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296

    摘要： A hydraulic drive device for a hydraulic excavator, includes: a first hydraulic pump; a first boom directional control valve and a second arm directional control valve which are connected in parallel to the first pump; a second hydraulic pump; and a second boom directional control valve and a first arm directional control valve which are connected in parallel to the second pump; wherein: the hydraulic drive device also includes: a third hydraulic pump; a third boom directional control valve connected to the third pump and controlling the flow of pressure oil supplied to a boom cylinder; and a third arm directional control valve connected in tandem with the third boom directional control valve and controlling the flow of pressure oil supplied to an arm cylinder.

    摘要翻译： 一种用于液压挖掘机的液压驱动装置，包括：第一液压泵; 与第一泵并联连接的第一起重臂方向控制阀和第二臂方向控制阀; 第二液压泵; 以及与第二泵并联连接的第二起重臂方向控制阀和第一臂方向控制阀; 其中：液压驱动装置还包括：第三液压泵; 连接到第三泵的第三起重臂方向控制阀，并控制供应到动臂缸的压力油的流动; 以及与第三动臂方向控制阀串联连接的第三臂方向控制阀，并控制供给到手臂缸的压力油的流动。

    Hydraulic driving device for working machine
    7.
    发明授权
    Hydraulic driving device for working machine 失效
    液压驱动装置

    公开(公告)号：US08756916B2

    公开(公告)日：2014-06-24

    申请号：US13443558

    申请日：2012-04-10

    申请人： Kensuke Sato ,  Tsuyoshi Nakamura ,  Kouji Ishikawa ,  Yasuo Okano

    发明人： Kensuke Sato ,  Tsuyoshi Nakamura ,  Kouji Ishikawa ,  Yasuo Okano

    IPC分类号： F01N3/00

    CPC分类号： E02F9/2282 ,  E02F9/2246 ,  E02F9/226 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F01N9/002 ,  F01N2560/08 ,  F01N2900/0416 ,  F02D41/0245 ,  F02D41/029 ,  Y02T10/26 ,  Y02T10/47

    摘要： A hydraulic driving device for a working machine surely prevents behavior of a single rod double acting cylinder not intended by an operator when discharge pressure of a main pump is raised to raise exhaust gas temperature to temperature required for burning particulate matter. A selector valve 160 interposed between a spool valve 61 and a rod chamber of a single rod double acting cylinder 51 and a section (a filter regeneration time actuation valve 122, a vehicle body controller 150) controlling the selector valve, are provided. A switch control section prevents a flow of oil directed from the rod chamber of the cylinder toward the spool valve by actuating the selector valve by a poppet of the selector valve when a by-pass cut valve 110 is controlled to increase a load of an engine 21 to a degree exhaust gas temperature reaches temperature required for burning particulate matter.

    摘要翻译： 用于工作机械的液压驱动装置肯定地防止了当主泵的排出压力升高以将废气温度升高到燃烧颗粒物质所需的温度时，操作者不想要的单杆双作用缸的行为。 设置有插入在单杆双作用缸51的滑阀61和杆室之间的切换阀160以及控制选择阀的部分（过滤器再生时间致动阀122，车身控制器150）。 当旁路切断阀110被控制以增加发动机的负载时，开关控制部分通过由选择阀的提升阀致动选择阀来防止从气缸的杆室引导的油流向滑阀 废气温度达到一定程度达到燃烧颗粒物质所需的温度。

    Hydraulic Drive Device for Hydraulic Working Machine
    8.
    发明申请
    Hydraulic Drive Device for Hydraulic Working Machine 有权
    液压工程机液压驱动装置

    公开(公告)号：US20120163949A1

    公开(公告)日：2012-06-28

    申请号：US13393752

    申请日：2010-09-01

    申请人： Yasuo Okano ,  Tsuyoshi Nakamura ,  Kouji Ishikawa ,  Kensuke Sato ,  Naoki Hagiwara

    发明人： Yasuo Okano ,  Tsuyoshi Nakamura ,  Kouji Ishikawa ,  Kensuke Sato ,  Naoki Hagiwara

    IPC分类号： E02F3/42 ,  F15B11/17 ,  F15B11/024

    CPC分类号： E02F9/2239 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/17 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/3116 ,  F15B2211/7053 ,  F15B2211/7058 ,  F15B2211/7128

    摘要： A hydraulic drive system realizes a jack-up operation without arrangement of a flow rate control valve and center bypass selector valve. The hydraulic drive system has first and second hydraulic pumps, first and second directional control valves for controlling boom cylinders, a third directional control valve for controlling the boom cylinders, and a third hydraulic pump for feeding pressure oil to the third directional control valve. A jack-up selector valve has a second select position where, when a pressure in bottom chambers of the boom cylinders is not higher than a predetermined pressure, feeding of pressure oil, which is delivered from the first hydraulic pump and second hydraulic pump, to rod chambers of the boom cylinders, is held permissible in association with switching of the second directional control valve and third directional control valve by a manipulation of a control device.

    摘要翻译： 液压驱动系统实现自升式操作，而不需要设置流量控制阀和中心旁路选择阀。 液压驱动系统具有第一和第二液压泵，用于控制动臂缸的第一和第二方向控制阀，用于控制动臂缸的第三方向控制阀和用于将压力油供给到第三方向控制阀的第三液压泵。 自升式选择阀具有第二选择位置，其中当动臂缸的底部腔中的压力不高于预定压力时，将从第一液压泵和第二液压泵输送的压力油的供给到 动臂缸的杆室通过控制装置的操纵与第二方向控制阀和第三方向控制阀的切换相关联地被保持为允许的。

    Hydraulic drive device for hydraulic working machine
    9.
    发明授权
    Hydraulic drive device for hydraulic working machine 有权
    液压工程机液压驱动装置

    公开(公告)号：US08650778B2

    公开(公告)日：2014-02-18

    申请号：US13393752

    申请日：2010-09-01

    申请人： Yasuo Okano ,  Tsuyoshi Nakamura ,  Kouji Ishikawa ,  Kensuke Sato ,  Naoki Hagiwara

    发明人： Yasuo Okano ,  Tsuyoshi Nakamura ,  Kouji Ishikawa ,  Kensuke Sato ,  Naoki Hagiwara

    IPC分类号： E02F3/43 ,  G05D7/01

    CPC分类号： E02F9/2239 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/17 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/3116 ,  F15B2211/7053 ,  F15B2211/7058 ,  F15B2211/7128

    摘要： A hydraulic drive system realizes a jack-up operation without arrangement of a flow rate control valve and center bypass selector valve. The hydraulic drive system has first and second hydraulic pumps, first and second directional control valves for controlling boom cylinders, a third directional control valve for controlling the boom cylinders, and a third hydraulic pump for feeding pressure oil to the third directional control valve. A jack-up selector valve has a second select position where, when a pressure in bottom chambers of the boom cylinders is not higher than a predetermined pressure, feeding of pressure oil, which is delivered from the first hydraulic pump and second hydraulic pump, to rod chambers of the boom cylinders, is held permissible in association with switching of the second directional control valve and third directional control valve by a manipulation of a control device.

    摘要翻译： 液压驱动系统实现自升式操作，而不需要设置流量控制阀和中心旁路选择阀。 液压驱动系统具有第一和第二液压泵，用于控制动臂缸的第一和第二方向控制阀，用于控制动臂缸的第三方向控制阀和用于将压力油供给到第三方向控制阀的第三液压泵。 自升式选择阀具有第二选择位置，其中当动臂缸的底部腔中的压力不高于预定压力时，将从第一液压泵和第二液压泵输送的压力油的供给到 动臂缸的杆室通过控制装置的操纵与第二方向控制阀和第三方向控制阀的切换相关联地被保持为允许的。

    Hydraulic Drive Apparatus for Construction Equipment
    10.
    发明申请
    Hydraulic Drive Apparatus for Construction Equipment 有权
    液压驱动装置

    公开(公告)号：US20120003069A1

    公开(公告)日：2012-01-05

    申请号：US13256868

    申请日：2010-03-15

    申请人： Naoki Hagiwara ,  Tsuyoshi Nakamura ,  Kensuke Sato ,  Yasuo Okano ,  Kouji Ishikawa ,  Masanori Ezawa

    发明人： Naoki Hagiwara ,  Tsuyoshi Nakamura ,  Kensuke Sato ,  Yasuo Okano ,  Kouji Ishikawa ,  Masanori Ezawa

    IPC分类号： E02F9/22 ,  F01N3/023 ,  E02F3/43

    CPC分类号： F02D41/0245 ,  E02F9/226 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2296 ,  E02F9/265 ,  F02D41/029 ,  F02D2041/026 ,  F02D2200/604 ,  F15B11/024 ,  F15B21/14 ,  Y02T10/26

    摘要： A hydraulic drive system for a working machine provides improved safety during forced regeneration. Upon input of a forced regeneration command signal from a forced regeneration switch, a controller detects non-operated states of all hydraulic actuators such as an arm cylinder arranged on a hydraulic excavator based on a lock detection signal from a gate lock detection switch, and also an attitude of a front working mechanism. The attitude is proper from the standpoint of safety. The detection is based on an arm angle signal from an arm angle sensor, a bucket angle signal from a bucket angle sensor and a boom pressure signal from a boom pressure sensor. Taking the detection of the non-operated states and proper attitude as conditions, the controller outputs control signals to a boosting proportional solenoid valve and flow-rate controlling, proportional solenoid valve to make a forced regenerator conduct forced regeneration.

    摘要翻译： 用于工作机械的液压驱动系统在强制再生期间提供了改善的安全性。 在从强制再生开关输入强制再生命令信号时，控制器基于来自闸门检测开关的锁定检测信号，检测所有液压致动器，例如布置在液压挖掘机上的悬臂液压缸的非操作状态，以及 前台工作机制的态度。 从安全的角度来看，态度是正确的。 检测是基于来自臂角传感器的臂角信号，来自铲斗角度传感器的斗角信号和来自起重臂压力传感器的起重臂压力信号。 以非操作状态的检测和适当的姿态为条件，控制器将控制信号输出到升压比例电磁阀和流量控制比例电磁阀，使强制再生器进行强制再生。