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1. 发明授权

US07594396B2 Hydraulic controller for working machine 失效
标题翻译：工作机液压控制器
公开(公告)号：US07594396B2
公开(公告)日：2009-09-29
申请号：US11860313
申请日：2007-09-24
申请人： Yutaka Toji
发明人： Yutaka Toji
IPC分类号： F16D31/02
CPC分类号： F15B20/008 , E02F9/2228 , E02F9/2235 , E02F9/226 , E02F9/2285 , E02F9/2296 , F15B11/165 , F15B20/00 , F15B21/08 , F15B2211/20553 , F15B2211/20576 , F15B2211/20584 , F15B2211/20592 , F15B2211/30505 , F15B2211/30525 , F15B2211/3056 , F15B2211/3111 , F15B2211/3127 , F15B2211/3144 , F15B2211/31511 , F15B2211/31576 , F15B2211/329 , F15B2211/355 , F15B2211/45 , F15B2211/5753 , F15B2211/63 , F15B2211/6346 , F15B2211/6355 , F15B2211/6653 , F15B2211/7053 , F15B2211/7058 , F15B2211/71 , F15B2211/8623 , F15B2211/8626 , F15B2211/87 , F15B2211/8752 , F15B2211/8755
摘要： A hydraulic controller for working machine according to the present invention, which presupposes an electronic control system where an integrated bleed-off valve common to hydraulic actuators is used for bleed-off control and the bleed-off valve is controlled by the secondary pressure of a proportional solenoid valve controlled by a controller, is constituted to compensate supply of a pressure oil for the hydraulic actuators even if the secondary pressure of the proportional solenoid valve is stopped, by providing, at the bleed-off valve, a fail-safe position with a fail-safe path which opens with an opening having smaller area than an unload opening.
摘要翻译：根据本发明的用于工作机的液压控制器，其预先假定电子控制系统，其中使用与液压致动器共用的集成泄放阀用于泄放控制，并且排放阀由第二压力由控制器控制的比例电磁阀构成为补偿液压致动器的压力油的供给，即使在比例电磁阀的二次压力停止时，通过在泄放阀处设置故障安全位置，一个故障安全的路径打开，开口面积小于卸载开口面积。

2. 发明授权

US07513109B2 Hydraulic controller for working machine 有权
标题翻译：工作机液压控制器
公开(公告)号：US07513109B2
公开(公告)日：2009-04-07
申请号：US11463199
申请日：2006-08-08
申请人： Yutaka Toji , Yoichiro Yamazaki , Koji Yamashita , Hidekazu Oka , Koji Ueda
发明人： Yutaka Toji , Yoichiro Yamazaki , Koji Yamashita , Hidekazu Oka , Koji Ueda
IPC分类号： F16D31/02 , F15B13/044
CPC分类号： E02F9/2239 , F15B11/166 , F15B2211/329 , F15B2211/355 , F15B2211/41518 , F15B2211/50518 , F15B2211/528 , F15B2211/5753 , F15B2211/6054 , F15B2211/6309 , F15B2211/6316 , F15B2211/633 , F15B2211/6346 , F15B2211/6355 , F15B2211/665 , F15B2211/6658 , F15B2211/67 , F15B2211/7058 , F15B2211/71 , F15B2211/7135 , F15B2211/763 , F15B2211/781
摘要： There is provided a hydraulic controller for a working machine in which a pilot hydraulic pressure source is connected in common to a plurality of pilot-operated hydraulic devices each having a pilot pressure input unit, and a common pilot pressure input switching valve is adapted to control the switching between a pilot pressure input from the pilot hydraulic pressure source to each pilot pressure input unit and a relief of the input. The switching control of a pilot pressure input by the pilot pressure input switching valve is performed based on the operating state of the working machine and pilot pressure input conditions of the respective pilot-operated hydraulic devices.
摘要翻译：提供了一种用于工作机械的液压控制器，其中先导液压源共同连接到多个先导式液压装置，每个先导式液压装置具有先导压力输入单元，并且公共先导压力输入切换阀适于控制在从先导液压源输入到先导压力输入单元的先导压力和输入的释放之间切换。由先导压力输入切换阀输入的先导压力的切换控制基于作业机械的运转状态和各先导操作的液压装置的先导压力输入条件进行。

3. 发明申请

US20080016861A1 HYDRAULIC CONTROLLER FOR WORKING MACHINE 失效
标题翻译：液压控制器工作机
公开(公告)号：US20080016861A1
公开(公告)日：2008-01-24
申请号：US11860313
申请日：2007-09-24
申请人： Yutaka TOJI
发明人： Yutaka TOJI
IPC分类号： F16D31/02
CPC分类号： F15B20/008 , E02F9/2228 , E02F9/2235 , E02F9/226 , E02F9/2285 , E02F9/2296 , F15B11/165 , F15B20/00 , F15B21/08 , F15B2211/20553 , F15B2211/20576 , F15B2211/20584 , F15B2211/20592 , F15B2211/30505 , F15B2211/30525 , F15B2211/3056 , F15B2211/3111 , F15B2211/3127 , F15B2211/3144 , F15B2211/31511 , F15B2211/31576 , F15B2211/329 , F15B2211/355 , F15B2211/45 , F15B2211/5753 , F15B2211/63 , F15B2211/6346 , F15B2211/6355 , F15B2211/6653 , F15B2211/7053 , F15B2211/7058 , F15B2211/71 , F15B2211/8623 , F15B2211/8626 , F15B2211/87 , F15B2211/8752 , F15B2211/8755
摘要： A hydraulic controller for working machine according to the present invention, which presupposes an electronic control system where an integrated bleed-off valve common to hydraulic actuators is used for bleed-off control and the bleed-off valve is controlled by the secondary pressure of a proportional solenoid valve controlled by a controller, is constituted to compensate supply of a pressure oil for the hydraulic actuators even if the secondary pressure of the proportional solenoid valve is stopped, by providing, at the bleed-off valve, a fail-safe position with a fail-safe path which opens with an opening having smaller area than an unload opening.
摘要翻译：根据本发明的用于工作机的液压控制器，其预先假定电子控制系统，其中使用与液压致动器共用的集成泄放阀用于泄放控制，并且排放阀由第二压力由控制器控制的比例电磁阀构成为补偿液压致动器的压力油的供给，即使在比例电磁阀的二次压力停止时，通过在泄放阀处设置故障安全位置，一个故障安全的路径打开，开口面积小于卸载开口面积。

4. 发明授权

US07131453B2 Hydraulic valve device and method for assembling the same 有权
标题翻译：液压阀装置及其组装方法
公开(公告)号：US07131453B2
公开(公告)日：2006-11-07
申请号：US10821950
申请日：2004-04-12
申请人： Yutaka Toji , Hidekazu Oka
发明人： Yutaka Toji , Hidekazu Oka
IPC分类号： F15B13/043
CPC分类号： F15B13/0896 , F15B11/17 , F15B13/0832 , F15B2013/006 , F15B2211/20546 , F15B2211/20576 , F15B2211/3116 , F15B2211/3127 , F15B2211/40515 , F15B2211/46 , F15B2211/7142 , F15B2211/78 , Y10T137/0491 , Y10T137/5109 , Y10T137/87169 , Y10T137/87177
摘要： An option valve for controlling the operation of an option actuator added as an option is installed into each of first and second main valve blocks in each of which plural control valves, a pressure oil supply line connected to a pump and a tank line connected to a tank are incorporated, and plural types of connection blocks incorporating circuit elements to be added to the option valve are attached to the main valve blocks selectively to constitute a hydraulic valve device. According to this hydraulic valve device, it is possible to widely cope with various option attachments despite a built-in system with the option valve incorporated beforehand in the main valve blocks.
摘要翻译：用于控制作为选项添加的选件致动器的操作的选项阀被安装到每个第一和第二主阀块中的每一个中，其中多个控制阀，连接到泵的压力油供应管线和连接到并且选择性地将附加到选择阀的电路元件的多种连接块安装到主阀块上以构成液压阀装置。根据这种液压阀装置，尽管内置系统，可以预先在主阀块中预先安装选件阀，但是可以广泛地应对各种选项附件。

5. 发明申请

US20050204912A1 Hydraulic control system for working machine 有权
标题翻译：工作机液压控制系统
公开(公告)号：US20050204912A1
公开(公告)日：2005-09-22
申请号：US11078340
申请日：2005-03-14
申请人： Yutaka Toji , Yoichiro Yamazaki , Hidekazu Oka
发明人： Yutaka Toji , Yoichiro Yamazaki , Hidekazu Oka
IPC分类号： E02F9/22 , F04B49/00 , F04B49/10 , F04B49/22 , F15B11/00 , F15B11/16 , F15B20/00 , F15B11/08
CPC分类号： F15B20/004 , E02F9/2235 , E02F9/226 , E02F9/2296
摘要： A hydraulic control system for a working machine according to the present invention includes a regulator control valve for controlling an operation of a pump regulator and a controller for sending a control signal for changing a discharge quantity of the pump to the regulator control valve in accordance with an operation amount of an operating means. On the basis of the control signal, a secondary pressure in the regulator control valve is fed to the pump regulator. This system further includes a fail-safe valve disposed in a control line joining the pump regulator and the regulator control valve. The fail-safe valve has an ordinary position for sending the secondary pressure to the pump regulator and a fail-safe position for sending an oil pressure from a path other than the regulator control valve to the pump regulator in such a manner that a predetermined discharge amount is ensured. The fail-safe valve is configured so as to switch from the ordinary position to the fail-safe position in accordance with a failure signal indicative of failure in the regulator control valve. According to this, while adopting an electronic control system for the pump, it is possible to continue a work even in the failed condition of the system.
摘要翻译：根据本发明的用于工作机械的液压控制系统包括：调节器控制阀，用于控制泵调节器的操作;以及控制器，用于发送用于将泵的排出量改变到调节器控制阀的控制信号，操作装置的操作量。基于控制信号，调节器控制阀中的二次压力被供给到泵调节器。该系统还包括设置在连接泵调节器和调节器控制阀的控制线中的故障安全阀。故障安全阀具有用于将二次压力发送到泵调节器的普通位置和用于将油压从调节器控制阀以外的路径发送到泵调节器的故障保护位置，使得预定的排放数量得到保证。故障安全阀被构造为根据指示调节器控制阀故障的故障信号从普通位置切换到故障安全位置。据此，在采用泵的电子控制系统的情况下，即使在系统的故障状态下也可以继续工作。

6. 发明授权

US07818968B2 Hydraulic control device of construction machine 失效
标题翻译：施工机械液压控制装置
公开(公告)号：US07818968B2
公开(公告)日：2010-10-26
申请号：US12018597
申请日：2008-01-23
申请人： Yoshiyasu Umezu , Yutaka Toji
发明人： Yoshiyasu Umezu , Yutaka Toji
IPC分类号： F16D31/02
CPC分类号： F15B11/055 , F15B2211/3055 , F15B2211/3116 , F15B2211/31576 , F15B2211/329 , F15B2211/351 , F15B2211/40515 , F15B2211/413 , F15B2211/41563 , F15B2211/428 , F15B2211/45 , F15B2211/6051 , F15B2211/6355 , F15B2211/851 , F15B2211/8606
摘要： A hydraulic control device of construction machine is provided with a control valve lying between a hydraulic pump and a hydraulic actuator for opening and closing a meter-in control flow path, and a flow rate control valve lying between a pump discharge line on the upstream side of the above control valve and a tank. The above flow rate control valve receives a pump pressure and a load sensing pressure corresponding to a pressure on the downstream side of the meter-in control flow path as a pilot pressure, and is activated for opening and closing so as to maintain a constant differential pressure therebetween. The above flow rate control valve is maintained in a closed state by a pilot pressure switching valve when the load sensing pressure is low. The above control valve opens a bypass line when the meter-in control flow path is closed.
摘要翻译：施工机械的液压控制装置设有位于液压泵和液压执行器之间的控制阀，用于打开和关闭计量控制流路，以及位于上游侧的泵排出管路之间的流量控制阀的上述控制阀和一个罐。上述流量控制阀接收与作为先导压力的流入控制流路的下游侧的压力对应的泵压力和负荷感测压力，并且被启动以打开和关闭，以保持恒定差速器之间的压力。当负载感测压力低时，上述流量控制阀通过先导压力切换阀保持在关闭状态。当进入控制流路关闭时，上述控制阀打开旁路管路。

7. 发明申请

US20080173014A1 HYDRAULIC CONTROL DEVICE OF CONSTRUCTION MACHINE 失效
标题翻译：建筑机械液压控制装置
公开(公告)号：US20080173014A1
公开(公告)日：2008-07-24
申请号：US12018597
申请日：2008-01-23
申请人： Yoshiyasu Umezu , Yutaka Toji
发明人： Yoshiyasu Umezu , Yutaka Toji
IPC分类号： F15B15/18 , F16D31/02 , F15B11/00 , E02F9/22 , F15B21/00 , F15B1/26
CPC分类号： F15B11/055 , F15B2211/3055 , F15B2211/3116 , F15B2211/31576 , F15B2211/329 , F15B2211/351 , F15B2211/40515 , F15B2211/413 , F15B2211/41563 , F15B2211/428 , F15B2211/45 , F15B2211/6051 , F15B2211/6355 , F15B2211/851 , F15B2211/8606
摘要： A hydraulic control device of construction machine is provided with a control valve lying between a hydraulic pump and a hydraulic actuator for opening and closing a meter-in control flow path, and a flow rate control valve lying between a pump discharge line on the upstream side of the above control valve and a tank. The above flow rate control valve receives a pump pressure and a load sensing pressure corresponding to a pressure on the downstream side of the meter-in control flow path as a pilot pressure, and is activated for opening and closing so as to maintain a constant differential pressure therebetween. The above flow rate control valve is maintained in a closed state by a pilot pressure switching valve when the load sensing pressure is low. The above control valve opens a bypass line when the meter-in control flow path is closed.
摘要翻译：施工机械的液压控制装置设有位于液压泵和液压执行器之间的控制阀，用于打开和关闭计量控制流路，以及位于上游侧的泵排出管路之间的流量控制阀的上述控制阀和一个罐。上述流量控制阀接收与作为先导压力的流入控制流路的下游侧的压力对应的泵压力和负荷感测压力，并且被启动以打开和关闭，以保持恒定差速器之间的压力。当负载感测压力低时，上述流量控制阀由先导压力切换阀保持在关闭状态。当进入控制流路关闭时，上述控制阀打开旁路管路。

8. 发明授权

US07284371B2 Hydraulic control system for working machine 有权
标题翻译：工作机液压控制系统
公开(公告)号：US07284371B2
公开(公告)日：2007-10-23
申请号：US11078340
申请日：2005-03-14
申请人： Yutaka Toji , Yoichiro Yamazaki , Hidekazu Oka
发明人： Yutaka Toji , Yoichiro Yamazaki , Hidekazu Oka
IPC分类号： F16D31/02
CPC分类号： F15B20/004 , E02F9/2235 , E02F9/226 , E02F9/2296
摘要： A hydraulic control system for a working machine according to the present invention includes a regulator control valve for controlling an operation of a pump regulator and a controller for sending a control signal for changing a discharge quantity of the pump to the regulator control valve in accordance with an operation amount of an operating device. This system further includes a fail-safe valve disposed in a control line joining the pump regulator and the regulator control valve. The fail-safe valve is configured so as to switch from an ordinary position to a fail-safe position in accordance with a failure signal indicative of failure in the regulator control valve.
摘要翻译：根据本发明的用于工作机械的液压控制系统包括：调节器控制阀，用于控制泵调节器的操作;以及控制器，用于发送用于将泵的排出量改变到调节器控制阀的控制信号，操作装置的操作量。该系统还包括设置在连接泵调节器和调节器控制阀的控制线中的故障安全阀。故障安全阀被构造为根据指示调节器控制阀故障的故障信号从普通位置切换到故障安全位置。

9. 发明申请

US20050204736A1 Hydraulic control device for working machine 有权
标题翻译：工作机液压控制装置
公开(公告)号：US20050204736A1
公开(公告)日：2005-09-22
申请号：US11078425
申请日：2005-03-14
申请人： Yutaka Toji , Hidekazu Oka
发明人： Yutaka Toji , Hidekazu Oka
IPC分类号： E02F9/22 , F15B11/00 , F15B11/042 , F15B20/00 , E03B1/00
CPC分类号： F15B20/008 , E02F9/2228 , E02F9/2235 , E02F9/226 , E02F9/2282 , F15B11/0423 , F15B2211/20553 , F15B2211/30525 , F15B2211/3056 , F15B2211/3122 , F15B2211/3127 , F15B2211/329 , F15B2211/40515 , F15B2211/428 , F15B2211/45 , F15B2211/50536 , F15B2211/5151 , F15B2211/55 , F15B2211/6652 , F15B2211/6654 , F15B2211/7053 , F15B2211/7058 , F15B2211/71 , F15B2211/7741
摘要： A hydraulic control device for a working machine includes hydraulic actuators, a hydraulic pump which functions as a hydraulic power source, control valves which control the actuators on the basis of operations by an operating unit, a common bleed-off valve which returns excess oil to a tank via an unload passage on the basis of the operations by the operating unit, and a control unit which controls the common bleed-off valve. The common bleed-off valve is capable of setting a position for closing the unload passage when the common bleed-off valve is in a non-operating state. The control valves have center bypass passages which function as individual bleed-off passages which open when the control valves are in neutral states. Opening characteristics of the control valves are set such that the center bypass passages are closed in initial stroke periods in which the control valves move toward operating positions.
摘要翻译：一种用于工作机械的液压控制装置包括液压致动器，用作液压动力源的液压泵，基于操作单元的操作来控制致动器的控制阀，将多余油返回的公共排放阀基于操作单元的操作通过卸载通道的油箱，以及控制公共泄放阀的控制单元。当公共泄放阀处于非操作状态时，公共泄放阀能够设定关闭卸载通道的位置。控制阀具有中心旁路通道，其作为单独的泄放通道，当控制阀处于中性状态时，它们打开。控制阀的打开特性被设定为使得中间旁通通道在控制阀朝向操作位置移动的初始行程中闭合。

10. 发明授权

US07634961B2 Hydraulic circuit for construction machine 失效
标题翻译：施工机械液压回路
公开(公告)号：US07634961B2
公开(公告)日：2009-12-22
申请号：US11573108
申请日：2005-09-21
申请人： Tomohiko Asakage , Yutaka Toji , Masaaki Tachino , Kazuhiko Fujii
发明人： Tomohiko Asakage , Yutaka Toji , Masaaki Tachino , Kazuhiko Fujii
IPC分类号： F15B11/08 , F16D31/02
CPC分类号： E02F9/2267 , E02F9/128 , E02F9/2207 , E02F9/226 , E02F9/2285 , F15B13/0422 , F15B2211/329 , F15B2211/355 , F15B2211/7058 , Y10T137/7758
摘要： A hydraulic circuit including a first throttle disposed upstream of pressure-reducing valves of a remote-control valve, which operates a control valve of hydraulic pilot type, so as to reduce primary pressures supplied from a pilot pump to the pressure-reducing valves. Bleed-off lines connect pilot lines to tanks. Second throttles are disposed on the bleed-off lines, respectively, so as to moderate rises in the pilot pressures supplied to pilot ports of the control valve. The hydraulic circuit prevents detrimental effects such as deterioration of operability while ensuring shock absorption during quick operation.
摘要翻译：一种液压回路，包括设置在远程控制阀的减压阀的上游的第一节流阀，其操作液压先导式的控制阀，以便将从先导泵供给的减压阀降低到减压阀。出线将飞行员线连接到坦克。第二节流器分别设置在排放管路上，以便适度地提供给控制阀的先导端口的先导压力升高。液压回路可以防止在快速运转时确保冲击吸收的操作性劣化等有害影响。

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