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21. 发明申请

US20110192155A1 Hydraulic Drive Device for Hydraulic Excavator 有权
标题翻译：液压挖掘机液压驱动装置
公开(公告)号：US20110192155A1
公开(公告)日：2011-08-11
申请号：US13023789
申请日：2011-02-09
申请人： Naoki HAGIWARA , Yasuo Okano , Tsuyoshi Nakamura , Kouji Ishikawa , Kazunori Nakamura
发明人： Naoki HAGIWARA , Yasuo Okano , Tsuyoshi Nakamura , Kouji Ishikawa , Kazunori Nakamura
IPC分类号： F15B13/08
CPC分类号： E02F9/2239 , E02F9/2242 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B2211/20576 , F15B2211/30565 , F15B2211/40515 , F15B2211/415 , F15B2211/428 , F15B2211/7142 , F15B2211/781
摘要： The operability when performing a combined arm-crowd and bucket operation can be improved. A hydraulic drive device for a hydraulic excavator includes: a bucket directional control valve and a second arm directional control valve, which are connected in parallel tandem with a first hydraulic pump; a first arm directional control valve that is connected to a second hydraulic pump; and a flow rate restriction device that restricts the flow rate of pressure oil supplied to the second arm directional control valve, during crowd operation of a bucket. This flow rate restriction device includes a variable throttle whose opening is controlled so as to become smaller as a bucket operating device is operated to the crowd side, the variable throttle being provided in a bypass path connecting to the supply port of the second arm directional control valve.
摘要翻译：可以提高执行组合式斗杆和铲斗操作时的可操作性。液压挖掘机的液压驱动装置包括：与第一液压泵并联连接的铲斗方向控制阀和第二臂方向控制阀; 与第二液压泵连接的第一臂方向控制阀; 以及流量限制装置，其限制在斗的人群操作期间供应到第二臂方向控制阀的压力油的流量。该流量限制装置包括可变节流阀，其可随着铲斗操作装置向人群操作而控制开口变小，可变节气门设置在连接到第二臂方向控制器的供给口的旁路阀。

22. 发明授权

US08006491B2 Pump control apparatus for construction machine 有权
标题翻译：施工机械泵控制装置
公开(公告)号：US08006491B2
公开(公告)日：2011-08-30
申请号：US12282591
申请日：2008-01-22
申请人： Akihiro Narazaki , Kouji Ishikawa , Nobuei Ariga
发明人： Akihiro Narazaki , Kouji Ishikawa , Nobuei Ariga
IPC分类号： F15B11/02 , E02F99/22
CPC分类号： E02F9/2235 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F04B17/05
摘要： On the basis of reference torque and torque correction amount output units (T1 and T2), a torque control command pressure is calculated so that the input torques of first and second pumps are increased. The calculated torque command instruction pressure is then supplied as external command pressure to the varying mechanism of a regulator used for the first and second pumps so as to prevent the input torques of the first and second pumps from being decreased more than necessary. As a result, even when three variable displacement hydraulic pumps are used with the discharge pressure of one of the hydraulic pumps reduced by a pressure reducing valve and further the input torques of the other two hydraulic pumps are decreased by that pressure, the engine output can be efficiently utilized, and the work rate does not decrease.
摘要翻译：基于参考扭矩和扭矩校正量输出单元（T1和T2），计算转矩控制指令压力，使得第一和第二泵的输入转矩增加。然后将计算出的转矩指令指令压力作为外部指令压力提供给用于第一和第二泵的调节器的变化机构，以防止第一和第二泵的输入转矩减小到超过所需的压力。结果，即使使用三个可变排量液压泵，其中一个液压泵的排出压力由减压阀减小，另外两个液压泵的输入转矩也减小了该压力，发动机输出可以有效利用，工作率不降低。

23. 发明申请

US20070261277A1 Work Machine 有权
标题翻译：工作机器
公开(公告)号：US20070261277A1
公开(公告)日：2007-11-15
申请号：US11661972
申请日：2005-09-08
申请人： Kouji Ishikawa , Tadatoshi Shimamura , Hidetoshi Satake , Nobuei Ariga
发明人： Kouji Ishikawa , Tadatoshi Shimamura , Hidetoshi Satake , Nobuei Ariga
IPC分类号： E02F9/22
CPC分类号： F15B21/005 , E02F9/2246 , E02F9/2285 , F15B13/0422 , F15B2211/20523 , F15B2211/20546 , F15B2211/329 , F15B2211/355 , F15B2211/7053
摘要： A work machine is provided having a starter motor for starting a prime mover, which without provision of any special hydraulic equipment, allows for draining pressure oil that still remains in a hydraulic actuator for driving a front attachment. The work machine is provided with a boom cylinder for driving a front attachment, a flow rate control valve for controlling a flow of pressure oil to be supplied to the boom cylinder, and a pilot valve for producing an output of a pilot control signal, which serves to switch the flow rate control valve, by using, as a primary pressure, pressure oil delivered from a pilot hydraulic pump driven by an engine. A fuel stop switch is provided for performing stop control on a supply of fuel, which drives the engine, and a switch is provided for maintaining drivable a starter motor, which starts the engine, responsive to the stop control of the supply of fuel to the engine by the fuel stop switch.
摘要翻译：提供一种作业机器，其具有用于启动原动机的起动电动机，其不需要任何特殊的液压设备，能够排出仍然保留在用于驱动前部附件的液压致动器中的压力油。作业机械设有用于驱动前附件的动臂缸，用于控制供给动臂缸的压力油的流量的流量控制阀，以及用于产生先导控制信号的输出的先导阀，用于通过使用从发动机驱动的先导液压泵输送的压力油作为一次压力来切换流量控制阀。提供燃料停止开关，用于对驱动发动机的燃料供应进行停止控制，并且提供开关，用于维持起动发动机的可启动起动电动机的开关，响应于停止控制对燃料供应的燃料发动机由燃油停止开关。

24. 发明授权

US07464493B2 Work machine 有权
标题翻译：工作机
公开(公告)号：US07464493B2
公开(公告)日：2008-12-16
申请号：US11661972
申请日：2005-09-08
申请人： Kouji Ishikawa , Tadatoshi Shimamura , Hidetoshi Satake , Nobuei Ariga
发明人： Kouji Ishikawa , Tadatoshi Shimamura , Hidetoshi Satake , Nobuei Ariga
IPC分类号： E02F5/02 , G05D1/02
CPC分类号： F15B21/005 , E02F9/2246 , E02F9/2285 , F15B13/0422 , F15B2211/20523 , F15B2211/20546 , F15B2211/329 , F15B2211/355 , F15B2211/7053
摘要： A work machine is provided having a starter motor for starting a prime mover, which without provision of any special hydraulic equipment, allows for draining pressure oil that still remains in a hydraulic actuator for driving a front attachment. The work machine is provided with a boom cylinder for driving a front attachment, a flow rate control valve for controlling a flow of pressure oil to be supplied to the boom cylinder, and a pilot valve for producing an output of a pilot control signal, which serves to switch the flow rate control valve, by using, as a primary pressure, pressure oil delivered from a pilot hydraulic pump driven by an engine. A fuel stop switch is provided for performing stop control on a supply of fuel, which drives the engine, and a switch is provided for maintaining drivable a starter motor, which starts the engine, responsive to the stop control of the supply of fuel to the engine by the fuel stop switch.
摘要翻译：提供一种作业机器，其具有用于启动原动机的起动电动机，其不需要任何特殊的液压设备，能够排出仍然保留在用于驱动前部附件的液压致动器中的压力油。作业机械设有用于驱动前附件的动臂缸，用于控制供给动臂缸的压力油的流量的流量控制阀，以及用于产生先导控制信号的输出的先导阀，用于通过使用从发动机驱动的先导液压泵输送的压力油作为一次压力来切换流量控制阀。提供燃料停止开关，用于对驱动发动机的燃料供应进行停止控制，并且提供开关，用于维持起动发动机的可启动起动电动机的开关，响应于停止控制对燃料供应的燃料发动机由燃油停止开关。

25. 发明申请

US20090044528A1 PUMP CONTROL APPARATUS FOR CONSTRUCTION MACHINE 有权
标题翻译：建筑机械泵控制装置
公开(公告)号：US20090044528A1
公开(公告)日：2009-02-19
申请号：US12282591
申请日：2008-01-22
申请人： Akihiro Narazaki , Kouji Ishikawa , Nobuei Ariga
发明人： Akihiro Narazaki , Kouji Ishikawa , Nobuei Ariga
IPC分类号： F16D31/02
CPC分类号： E02F9/2235 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F04B17/05
摘要： On the basis of reference torque and torque correction amount output units (T1 and T2), a torque control command pressure is calculated so that the input torques of first and second pumps are increased. The calculated torque command instruction pressure is then supplied as external command pressure to the varying mechanism of a regulator used for the first and second pumps so as to prevent the input torques of the first and second pumps from being decreased more than necessary. As a result, even when three variable displacement hydraulic pumps are used with the discharge pressure of one of the hydraulic pumps reduced by a pressure reducing valve and further the input torques of the other two hydraulic pumps are decreased by that pressure, the engine output can be efficiently utilized, and the work rate does not decrease.
摘要翻译：基于参考扭矩和扭矩校正量输出单元（T1和T2），计算转矩控制指令压力，使得第一和第二泵的输入转矩增加。然后将计算出的转矩指令指令压力作为外部指令压力提供给用于第一和第二泵的调节器的变化机构，以防止第一和第二泵的输入转矩减小到超过所需的压力。结果，即使使用三个可变排量液压泵，其中一个液压泵的排出压力由减压阀减小，另外两个液压泵的输入转矩也减小了该压力，发动机输出可以有效利用，工作率不降低。

26. 发明申请

US20080223205A1 Hydraulic Drive Apparatus 有权
标题翻译：液压驱动装置
公开(公告)号：US20080223205A1
公开(公告)日：2008-09-18
申请号：US10567583
申请日：2004-08-05
申请人： Yusuke Kajita , Kouji Ishikawa , Hideo Karasawa
发明人： Yusuke Kajita , Kouji Ishikawa , Hideo Karasawa
IPC分类号： F15B11/00
CPC分类号： F15B11/024 , E02F9/2225 , E02F9/2296 , F15B11/16 , F15B21/14 , F15B2211/20523 , F15B2211/20546 , F15B2211/20576 , F15B2211/30525 , F15B2211/3058 , F15B2211/3116 , F15B2211/31576 , F15B2211/329 , F15B2211/40507 , F15B2211/40515 , F15B2211/41545 , F15B2211/428 , F15B2211/6355 , F15B2211/7114 , F15B2211/88
摘要： A hydraulic drive system is mounted on a hydraulic excavator, and is provided with a directional control valve 23 for a boom, a directional control valve 24 for an arm, a boom control device 25 for selectively controlling the directional control valve 23 for the boom, and an arm control device 26 for selectively controlling the directional control valve 24 for the arm. The directional control valves 23,24 control a boom cylinder 6 and an arm cylinder 7, respectively, which are driven by pressure oil delivered from a main hydraulic pump 21. The hydraulic drive system is provided with a communication control means for communicating a rod chamber 6b of the boom cylinder 6 and a bottom chamber 7a of the arm cylinder 7 with each other when a stroke of the arm control device 26 has become a predetermined amount S or greater. The communication control means has made it possible to effectively use pressure oil in the rod chamber of the first hydraulic cylinder, which was conventionally drained into a reservoir, irrespective of the level of a bottom pressure in the second hydraulic cylinder upon performing a combined operation that pressure oil is fed to a bottom chamber of the first hydraulic cylinder and the bottom chamber of the second hydraulic cylinder.
摘要翻译：液压驱动系统安装在液压挖掘机上，并具有用于起重臂的方向控制阀23，用于臂的方向控制阀24，用于选择性地控制动臂用方向控制阀23的动臂控制装置25，以及用于选择性地控制臂的方向控制阀24的臂控制装置26。方向控制阀23,24分别控制由从主液压泵21输送的压力油驱动的动臂缸6和斗杆缸7。液压驱动系统设置有通信控制装置，用于当臂控制装置26的行程变为预定位置时，将臂臂6的杆室6b和臂气缸7的底部腔室7a相互连通，数量S以上。通信控制装置使得可以有效地使用常规排放到储存器中的第一液压缸的杆室中的压力油，而不管第二液压缸中的底部压力的水平如何，在执行组合操作时压力油被供给到第一液压缸的底部室和第二液压缸的底部室。

27. 发明授权

US07895833B2 Hydraulic drive apparatus 有权
标题翻译：液压驱动装置
公开(公告)号：US07895833B2
公开(公告)日：2011-03-01
申请号：US10567583
申请日：2004-08-05
申请人： Yusuke Kajita , Kouji Ishikawa , Hideo Karasawa
发明人： Yusuke Kajita , Kouji Ishikawa , Hideo Karasawa
IPC分类号： F16D31/02 , F15B13/07
CPC分类号： F15B11/024 , E02F9/2225 , E02F9/2296 , F15B11/16 , F15B21/14 , F15B2211/20523 , F15B2211/20546 , F15B2211/20576 , F15B2211/30525 , F15B2211/3058 , F15B2211/3116 , F15B2211/31576 , F15B2211/329 , F15B2211/40507 , F15B2211/40515 , F15B2211/41545 , F15B2211/428 , F15B2211/6355 , F15B2211/7114 , F15B2211/88
摘要： A hydraulic drive system is mounted on a hydraulic excavator, and is provided with a directional control valve 23 for a boom, a directional control valve 24 for an arm, a boom control device 25 for selectively controlling the directional control valve 23 for the boom, and an arm control device 26 for selectively controlling the directional control valve 24 for the arm. The directional control valves 23, 24 control a boom cylinder 6 and an arm cylinder 7, respectively, which are driven by pressure oil delivered from a main hydraulic pump 21. The hydraulic drive system is provided with a communication control unit for communicating a rod chamber 6b of the boom cylinder 6 and a bottom chamber 7a of the arm cylinder 7 with each other when a stroke of the arm control device 26 has become a predetermined amount S or greater.
摘要翻译：液压驱动系统安装在液压挖掘机上，并具有用于起重臂的方向控制阀23，用于臂的方向控制阀24，用于选择性地控制动臂用方向控制阀23的动臂控制装置25，以及用于选择性地控制臂的方向控制阀24的臂控制装置26。方向控制阀23,24分别控制由从主液压泵21输送的压力油驱动的动臂缸6和斗杆缸7.液压驱动系统设置有连通杆室臂控制装置26的行程变为预定量S以上时，臂臂6的6b以及臂气缸7的底部室7a彼此连接。

28. 发明申请

US20110192156A1 Hydraulic Drive Device for Construction Machine 有权
标题翻译：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。

29. 发明授权

US08756916B2 Hydraulic driving device for working machine 失效
标题翻译：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。

30. 发明申请

US20120163949A1 Hydraulic Drive Device for Hydraulic Working Machine 有权
标题翻译：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。

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