专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5930996A Auto-acceleration system for prime mover of hydraulic construction machine and control system for prime mover and hydraulic pump 有权
标题翻译：液压工程机械原动机自动加速系统，原动机和液压泵控制系统
公开(公告)号：US5930996A
公开(公告)日：1999-08-03
申请号：US164365
申请日：1998-10-01
申请人： Kazunori Nakamura , Ei Takahashi , Tsukasa Toyooka , Kouji Ishikawa , Tsuyoshi Nakamura , Yoichi Kowatari , Tadatoshi Shimamura , Genroku Sugiyama , Toichi Hirata
发明人： Kazunori Nakamura , Ei Takahashi , Tsukasa Toyooka , Kouji Ishikawa , Tsuyoshi Nakamura , Yoichi Kowatari , Tadatoshi Shimamura , Genroku Sugiyama , Toichi Hirata
IPC分类号： B60K25/02 , E02F9/22 , F02D29/04 , F04B49/00 , F16D31/02
CPC分类号： E02F9/2296 , E02F9/2235 , E02F9/2246 , E02F9/2282 , E02F9/2285 , E02F9/2292
摘要： In the arm-crowding or track operation, a calculating portion (700d2 or 700d4) calculates a modification gain (KAC or KTR) depending on an operation pilot pressure and a calculating portion (700g) calculates a decrease modification (DND) based on the KAC or KTR, while a calculating portion (700m or 700p) calculates a modification gain (KACH or KTRH) depending on an operation pilot pressure and calculating portions (700q-700s) calculate an increase modification (DNH) based on the KACH or KTRH. A reference target engine revolution speed NR0 is modified using the DND and DNH. In other operations than the arm-crowding and track operations, NR0 is modified using only the decrease modification (DND) calculated from the modification gain just depending on the operation pilot pressure. In the operation where an engine revolution speed is desired to become higher as an actuator load increases, the engine revolution speed can be controlled in accordance with change of the actuator load as well. In other operations, the engine revolution speed can be controlled just depending on the direction and input amount in and by which corresponding operation instructing apparatus is operated.
摘要翻译：在手臂拥挤或轨道操作中，计算部分（700d2或700d4）根据操作先导压力计算修正增益（KAC或KTR），并且计算部分（700g）基于KAC计算减小修改（DND）或KTR，而计算部分（700m或700p）根据操作先导压力计算修正增益（KACH或KTRH），并且计算部分（700q-700s）基于KACH或KTRH计算增加修改（DNH）。使用DND和DNH修改参考目标发动机转速NR0。在除了拥挤和跟踪操作之外的其他操作中，NR0仅使用根据操作先导压力从修改增益计算的减少修改（DND）进行修改。在致动器负载增加时希望发动机转速变高的操作中，也可以根据致动器负载的变化来控制发动机转速。在其他操作中，可以根据相应的操作指示装置的操作方向和输入量来控制发动机转速。

2. 发明授权

US07493978B2 Traveling hydraulic working machine 有权
标题翻译：行走液压作业机
公开(公告)号：US07493978B2
公开(公告)日：2009-02-24
申请号：US10541450
申请日：2004-07-30
申请人： Tsuyoshi Nakamura , Genroku Sugiyama , Kazunori Nakamura , Toichi Hirata
发明人： Tsuyoshi Nakamura , Genroku Sugiyama , Kazunori Nakamura , Toichi Hirata
IPC分类号： F02D29/04
CPC分类号： F02D41/021 , E02F9/2246 , F02D29/02 , F02D31/001
摘要： A traveling hydraulic working machine has a target revolution speed of an engine commanded by an input and sensors for detecting an operating situation of a hydraulic actuator and an operating situation of a traveling system. A prime-mover revolution speed control modifies the target revolution speed of the prime mover when the operating situation of the hydraulic actuator and the operating situation of the traveling system come into respective particular states, and controls the revolution speed of the prime mover, With the traveling hydraulic working machine, in the combined operation of traveling and working a hydraulic actuator, work can be performed on the basis of the engine revolution speed intended by an operator. When a working load varies, the engine revolution speed is automatically controlled.
摘要翻译：行驶液压作业机具有由输入装置引导的发动机的目标转速以及用于检测液压致动器的运转状况的传感器和行驶系统的运转状况。原动机转速控制可以在液压执行器的运行状态和行驶系统的运行状态达到各自的特定状态时修改原动机的目标转速，并控制原动机的转速。行驶液压作业机，在组合操作液压执行机构的同时进行工作时，可以根据操作者的发动机转速进行工作。当工作负载变化时，发动机转速自动控制。

3. 发明申请

US20060201147A1 Traveling hydraulic working machine 有权
标题翻译：行走液压作业机
公开(公告)号：US20060201147A1
公开(公告)日：2006-09-14
申请号：US10543920
申请日：2004-11-15
申请人： Tsuyoshi Nakamura , Kazunori Nakamura , Toichi Hirata , Genroku Sugiyama , Kentaro Itoga
发明人： Tsuyoshi Nakamura , Kazunori Nakamura , Toichi Hirata , Genroku Sugiyama , Kentaro Itoga
IPC分类号： F16D31/02
CPC分类号： B60W10/30 , B66F9/0655 , B66F9/20 , E02F9/2235 , E02F9/2296 , F04B49/065 , F04B2203/0603 , F16H2059/467
摘要： A modification torque computing unit 83 computes a modification torque ΔT and a torque converter speed ratio e is computed from input and output revolution speeds of a torque converter 31. A first determination coefficient α corresponding to the speed ratio e, and a second determination coefficient β corresponding to a pump pressure are computed. A selector 87 selects the smaller one of these coefficients as a determination coefficient γ, and the modification torque ΔT is multiplied by γ to provide a modification torque ΔTA. An adder 89 adds the modification torque ΔTA (negative value) to a pump base torque TR to provide a modified pump base torque TRA, whereby a maximum pump absorption torque TRA is controlled so as to become TRA. The maximum pump torque reducing control can then be performed while accurately confirming a work situation during the combined operation of travel and a working actuator.
摘要翻译：修改扭矩计算单元83计算修正转矩DeltaT，并且由变矩器31的输入和输出转速计算变矩器速度比e。计算对应于速比e的第一确定系数α和对应于泵压的第二确定系数β。选择器87选择这些系数中的较小的一个作为确定系数γ，并且将修正转矩DeltaT乘以伽玛以提供修改转矩DeltaTA。加法器89将修正转矩DeltaTA（负值）与泵基本转矩TR相加以提供改进的泵基本转矩TRA，由此控制最大泵吸收转矩TRA以变成TRA。然后可以在行驶和工作执行器的组合操作期间精确地确认工作情况的同时执行最大泵扭矩降低控制。

4. 发明授权

US5911506A Control system for prime mover and hydraulic pump of hydraulic construction machine 有权
标题翻译：液压施工机械原动机和液压泵控制系统
公开(公告)号：US5911506A
公开(公告)日：1999-06-15
申请号：US166848
申请日：1998-10-06
申请人： Kazunori Nakamura , Ei Takahashi , Tsukasa Toyooka , Kouji Ishikawa , Tsuyoshi Nakamura , Yoichi Kowatari , Tadatoshi Shimamura , Genroku Sugiyama , Toichi Hirata
发明人： Kazunori Nakamura , Ei Takahashi , Tsukasa Toyooka , Kouji Ishikawa , Tsuyoshi Nakamura , Yoichi Kowatari , Tadatoshi Shimamura , Genroku Sugiyama , Toichi Hirata
IPC分类号： E02F9/22 , F15B11/00 , E02F9/20
CPC分类号： E02F9/2285 , E02F9/2235 , E02F9/2246 , E02F9/2282 , E02F9/2292 , E02F9/2296
摘要： A reference pump-delivery-rate calculating portion calculates a reference delivery rate of a hydraulic pump by referring to a table stored in a memory based on a control pilot pressure for the hydraulic pump. A target pump-delivery-rate calculating portion divides the reference delivery rate by a ratio of a maximum revolution speed to a target engine revolution speed, thereby calculating a target delivery rate. A target pump tilting calculating portion divides the target delivery rate by an actual engine revolution speed and a constant, thereby calculating a target tilting. A solenoid output current calculating portion calculates a drive current to provide the target tilting and outputs the drive current to a solenoid control valve. The pump delivery rate is thereby controlled with good response following input change of an operation instructing device.
摘要翻译：参考泵送出速度计算部分基于用于液压泵的控制先导压力参考存储在存储器中的表来计算液压泵的参考输出速率。目标泵输送速度计算部分将参考输出速率除以最大转速与目标发动机转速的比值，由此计算目标输送速率。目标泵倾转计算部将目标输送速度除以实际发动机转速和常数，由此计算目标倾斜。螺线管输出电流计算部分计算驱动电流以提供目标倾斜，并将驱动电流输出到电磁控制阀。由此，在操作指示装置的输入变化之后，以良好的响应来控制泵送出速度。

5. 发明授权

US5940997A Hydraulic circuit system for hydraulic working machine 有权
标题翻译：液压工程机液压回路系统
公开(公告)号：US5940997A
公开(公告)日：1999-08-24
申请号：US145158
申请日：1998-09-01
申请人： Tsukasa Toyooka , Toichi Hirata , Genroku Sugiyama , Kazunori Nakamura , Kouji Ishikawa , Tsuyoshi Nakamura
发明人： Tsukasa Toyooka , Toichi Hirata , Genroku Sugiyama , Kazunori Nakamura , Kouji Ishikawa , Tsuyoshi Nakamura
IPC分类号： E02F9/22
CPC分类号： E02F9/2267 , E02F9/2221 , E02F9/2232 , E02F9/2242 , E02F9/2271 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296
摘要： A hydraulic circuit system includes a shuttle block, and shuttle valves are arranged and connected within the shuttle block. The maximum pressure in a predetermined operation signal pressure group selected from operation signal pressures generated by pilot operating units is selected to produce a control signal pressure within the shuttle block. The control signal pressure is output to control devices such as a track communicating valve, a swing brake cylinder, and regulators for hydraulic pumps.
摘要翻译：一个液压回路系统包括一个梭子块，并且梭阀布置并连接在梭子块内。从由先导操作单元产生的操作信号压力中选择的预定操作信号压力组中的最大压力被选择以产生梭模块内的控制信号压力。控制信号压力输出到诸如轨道连通阀，回转制动缸和液压泵调节器之类的控制装置。

6. 发明授权

US07370475B2 Traveling hydraulic working machine 有权
标题翻译：行走液压作业机
公开(公告)号：US07370475B2
公开(公告)日：2008-05-13
申请号：US10543920
申请日：2004-11-15
申请人： Tsuyoshi Nakamura , Kazunori Nakamura , Toichi Hirata , Genroku Sugiyama , Kentaro Itoga
发明人： Tsuyoshi Nakamura , Kazunori Nakamura , Toichi Hirata , Genroku Sugiyama , Kentaro Itoga
IPC分类号： F16D31/02
CPC分类号： B60W10/30 , B66F9/0655 , B66F9/20 , E02F9/2235 , E02F9/2296 , F04B49/065 , F04B2203/0603 , F16H2059/467
摘要： A modification torque ΔT and a torque converter speed ratio e is computed from input and output revolution speeds of a torque converter 31. A first determination coefficient α corresponding to the speed ratio e, and a second determination coefficient β corresponding to a pump pressure are computed. A selector 87 selects the smaller one of these coefficients as a determination coefficient γ, and the modification torque ΔT is multiplied by γ to provide a modification torque ΔTA. An adder 89 adds the modification torque ΔTA (negative value) to a pump base torque TR to provide a modified pump base torque TRA, whereby a maximum pump absorption torque TRA is controlled so as to become TRA. The maximum pump torque reducing control can then be performed while accurately confirming a work situation during the combined operation of travel and a working actuator.
摘要翻译：根据变矩器31的输入和输出转速来计算修正转矩DeltaT和变矩器速比e。计算对应于速比e的第一确定系数α和对应于泵压的第二确定系数β。选择器87选择这些系数中的较小的一个作为确定系数γ，并且将修正转矩DeltaT乘以伽玛以提供修改转矩DeltaTA。加法器89将修正转矩DeltaTA（负值）与泵基本转矩TR相加以提供改进的泵基本转矩TRA，由此控制最大泵吸收转矩TRA以变成TRA。然后可以在行驶和工作执行器的组合操作期间精确地确认工作情况的同时执行最大泵扭矩降低控制。

7. 发明授权

US06220028B1 Hydraulic drive system for hydraulic work vehicle 有权
标题翻译：液压工作车液压驱动系统
公开(公告)号：US06220028B1
公开(公告)日：2001-04-24
申请号：US09204068
申请日：1998-12-03
申请人： Kouji Ishikawa , Toichi Hirata , Genroku Sugiyama , Tsukasa Toyooka , Tsuyoshi Nakamura , Yasuharu Gotou
发明人： Kouji Ishikawa , Toichi Hirata , Genroku Sugiyama , Tsukasa Toyooka , Tsuyoshi Nakamura , Yasuharu Gotou
IPC分类号： F16D3102
CPC分类号： E02F9/2296 , B60W2710/0644 , E02F9/2235 , E02F9/2246 , E02F9/26
摘要： A hydraulic drive system is provided with a signal guide system for guiding a delivery pressure of a pump as a command pressure via a line and a port, another signal guide system for guiding a pilot pressure of a pilot pump as another command pressure via a line and a port, a tilting control unit for controlling the displacement of the pump by the command pressures guided to the ports, a controller having a command current-setting unit for setting a relationship between a target engine speed and a command current, a target engine speed-indicating unit for an engine, and a solenoid-operated proportional valve for allowing the pilot pressure of the line to pass as is while no drive signal is outputted from the controller but for being reduced in opening to change the pilot pressure to a smaller value when a drive signal is outputted from the controller.
摘要翻译：液压驱动系统设置有信号引导系统，用于经由管线和端口引导泵的输送压力作为指令压力，另一个信号引导系统用于通过管线引导先导泵的先导压力作为另一个指令压力以及端口，倾斜控制单元，用于通过被引导到端口的指令压力来控制泵的排量;控制器，具有用于设定目标发动机转速和指令电流之间的关系的指令电流设定单元，目标发动机用于发动机的速度指示单元和用于允许线路的先导压力在没有驱动信号从控制器输出但为了减小开启以将先导压力改变为更小的电磁比例阀当从控制器输出驱动信号时的值。

8. 发明授权

US5907951A Hydraulic control system for construction machine 失效
标题翻译：施工机械液压控制系统
公开(公告)号：US5907951A
公开(公告)日：1999-06-01
申请号：US35334
申请日：1998-03-05
申请人： Tsukasa Toyooka , Toichi Hirata , Genroku Sugiyama , Kouji Ishikawa , Tsuyoshi Nakamura
发明人： Tsukasa Toyooka , Toichi Hirata , Genroku Sugiyama , Kouji Ishikawa , Tsuyoshi Nakamura
IPC分类号： F04B49/00 , E02F9/22 , F04B1/26 , F16D31/02
CPC分类号： E02F9/2296 , E02F9/2232 , E02F9/2285
摘要： A hydraulic control system according to the present invention for a construction machine is provided with a directional control valve switchable by a pilot control valve, a hydraulic cylinder, a pilot pump, a selector valve for selecting one of a maximum value out of pilot pressures of the pilot control valve, a flow control unit for controlling the flow rate of a variable displacement hydraulic pump, a pressure-reducing valve for converting a delivery pressure of the pilot pump to a pump control signal, which controls driving of the flow control unit, in accordance with a pilot pressure guided to a first signal line connected to the selector valve, a branch line connecting the pilot pump and the pressure-reducing valve with each other, and a second signal line for guiding the pump control signal, which has been converted at the pressure-reducing valve, to the flow control unit.
摘要翻译：根据本发明的用于建筑机械的液压控制系统设置有可由先导控制阀，液压缸，先导泵，先导泵，选择阀切换的方向控制阀，用于从先导控制阀先导控制阀，用于控制可变排量液压泵的流量的流量控制单元，用于将先导泵的输送压力转换为泵控制信号的减压阀，其控制流量控制单元的驱动，根据引导到连接到选择阀的第一信号线的先导压力，连接先导泵和减压阀的分支管线和用于引导泵控制信号的第二信号线在减压阀处转换到流量控制单元。

9. 发明授权

US5673558A Hydraulic circuit system for hydraulic excavator 失效
标题翻译：液压挖掘机液压回路系统
公开(公告)号：US5673558A
公开(公告)日：1997-10-07
申请号：US596296
申请日：1996-02-13
申请人： Genroku Sugiyama , Toichi Hirata , Koji Ishikawa , Tsukasa Toyooka , Tsuyoshi Nakamura
发明人： Genroku Sugiyama , Toichi Hirata , Koji Ishikawa , Tsukasa Toyooka , Tsuyoshi Nakamura
IPC分类号： E02F3/43 , E02F3/85 , E02F9/22 , F16D31/02
CPC分类号： E02F9/2282 , E02F9/2228 , E02F9/2242 , E02F9/2285
摘要： For enabling a boom to be smoothly raised during the triple combined operation of boom-up, arm-crowd and bucket-crowd in a hydraulic circuit system for a hydraulic excavator, in a first valve group of a hydraulic valve apparatus (12), a variable throttle valve (70) is installed in a feeder passage (32) of a bucket directional control valve (21) downstream of a load check valve (32a), and a secondary pressure C as a boom-up operation command is introduced through a line (71) to a pilot control sector (70a) of the variable throttle valve (70) which sector operates in the throttling direction, so that when the secondary pressure C is 0 or small, the variable throttle valve (70) is fully opened and, as the secondary pressure C increases, an opening area of the variable throttle valve (70) is reduced to restrict the flow rate of a hydraulic fluid supplied through the bucket directional control valve (21).
摘要翻译： PCT No.PCT / JP95 / 01258 Sec。 371日期1996年2月13日 102（e）日期1996年2月13日PCT提交1995年6月23日PCT公布。公开号WO96 / 00820 日期1996年1月11日为了在液压挖掘机的液压回路系统中，在液压阀装置的第一阀组中，在起重臂，悬臂和斗斗的三重组合操作期间能够平稳地升高起重臂（12）中，可变节流阀（70）安装在负载止回阀（32a）下游的铲斗方向控制阀（21）的供给通路（32）中，作为动臂上升操作的二次压力C 命令通过管线（71）引导到可变节流阀（70）的先导控制扇区（70a），该扇区在节流方向上操作，使得当二次压力C为0或小时，可变节流阀 70）完全打开，并且随着二次压力C增加，可变节流阀（70）的开口面积减小以限制通过铲斗方向控制阀（21）供给的液压流体的流量。

10. 发明授权

US06619037B1 Hydraulic driving device of civil engineering and construction machinery 有权
标题翻译：土木工程机械液压驱动装置
公开(公告)号：US06619037B1
公开(公告)日：2003-09-16
申请号：US09889612
申请日：2001-07-19
申请人： Tsukasa Toyooka , Toichi Hirata , Genroku Sugiyama , Kouji Ishikawa , Masao Nishimura , Tsuyoshi Nakamura
发明人： Tsukasa Toyooka , Toichi Hirata , Genroku Sugiyama , Kouji Ishikawa , Masao Nishimura , Tsuyoshi Nakamura
IPC分类号： F16D3102
CPC分类号： E02F9/2267 , E02F9/2239 , E02F9/2242 , E02F9/2271 , E02F9/2292
摘要： Provided are hydraulic pumps 1,2, a control valve group 15a connected to the pump 1 and including a bypass on/off valve 7, a control valve group 15b connected to the pump 2 and including a reserve-actuator-controlling, directional control valve 11, a communication line 13 communicating a most upstream side of the control valve group 15a with a supply line 11a to the reserve-actuator-controlling, directional control valve 11, a merge control valve 14 for communicating or cutting off the communication line 13, an interlocked control means for changing over the merge control valve 14 to an open position and the bypass on/off valve 7 to a closed position in association with a change-over operation of the reserve-actuator-controlling, directional control valve 11, and a selective control valve 28 capable of taking one of a state, in which the operation to change over the merge control valve 14 by the interlocked control means is feasible, and another state in which the operation to change over the merge control valve by the interlocked control means is infeasible. The control valve group 15a, the control valve group 15b, the communication line 13 and the merge control valve 14 are arranged in a housing 15 such that a change or the like in a maximum value of an operating speed of an actuator, said operating speed being controlled by the reserve directional control valve, can be achieved.
摘要翻译：设有液压泵1,2，与泵1连接并包括旁通开闭阀7的控制阀组15a，连接到泵2的控制阀组15b，并且包括备用执行器控制方向控制阀如图11所示，将控制阀组15a的最上游侧与供给管线11a连通的通信线路13配置到备用执行器控制用方向控制阀11，连通或切断通信线路13的合流控制阀14，联合控制装置，用于将合并控制阀14转换到打开位置，旁路开/关阀7与备用执行器控制方向控制阀11的转换操作相关联地转换到关闭位置，以及选择控制阀28，其能够采用其中一个状态，其中通过互锁控制装置切换合并控制阀14的操作是可行的;以及另一种状态，其中改变o的操作通过互锁控制装置检查合并控制阀是不可行的。控制阀组15a，控制阀组15b，连通管线13和合并控制阀14布置在壳体15中，使得在致动器的操作速度的最大值中的变化等，所述操作速度由备用方向控制阀控制，可以实现。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式