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1. 发明授权

EP0952358B1 Hose rupture control valve unit 有权
标题翻译：配管破裂控制阀装置
公开(公告)号：EP0952358B1
公开(公告)日：2006-06-14
申请号：EP99201251.8
申请日：1999-04-20
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Takahashi, Tarou , Sugiyama, Genroku , Toyooka, Tsukasa
IPC分类号： F15B13/01
CPC分类号： F15B20/005 , F15B13/01 , Y10T137/7727

2. 发明授权

EP0848113B1 Hydraulic circuit system for hydraulic working machine 失效
标题翻译：液压作业机械的液压回路
公开(公告)号：EP0848113B1
公开(公告)日：2003-04-02
申请号：EP97121344.2
申请日：1997-12-04
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Ishikawa, Kouji , Sugiyama, Genroku , Toyooka, Tsukasa , Nakamura, Tsuyoshi
IPC分类号： E02F9/22
CPC分类号： E02F9/2225 , E02F9/2232 , E02F9/2235 , E02F9/2282 , E02F9/2285 , E02F9/2296

3. 发明授权

EP0783057B1 Hydraulic drive system for construction machines 失效转让
标题翻译：施工液压作动系统
公开(公告)号：EP0783057B1
公开(公告)日：2001-07-11
申请号：EP97100051.8
申请日：1997-01-03
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Nakamura, Tsuyoshi, c/o Tsukuba-ryo , Hirata, Toichi , Sugiyama, Genroku , Toyooka, Tsukasa , Kowatari, Youichi , Ishikawa, Kouji, c/o Shiho-ryo
IPC分类号： E02F9/22
CPC分类号： E02F9/2282 , E02F9/2228 , E02F9/2235 , E02F9/2296

4. 发明公开

EP0952358A3 Hose rupture control valve unit 有权
标题翻译： Schlauchbruch- Steuerventilaggregat
公开(公告)号：EP0952358A3
公开(公告)日：2000-04-05
申请号：EP99201251.8
申请日：1999-04-20
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Takahashi, Tarou , Sugiyama, Genroku , Toyooka, Tsukasa
IPC分类号： F15B13/01
CPC分类号： F15B20/005 , F15B13/01 , Y10T137/7727
摘要： A hose rupture control valve unit comprises a housing (100) provided with two input/output ports (12). One input/output port (1) is directly attached to a bottom port of a hydraulic cylinder (102), and the other input/output port (2) is connected to one of actuator ports of a control valve via an actuator line (105). Within the housing (100), there are provided a poppet valve body (5) serving as a main valve, a spool valve body (6) serving as a pilot valve which is operated with a pilot pressure supplied as an external signal from a manual pilot valve (108), thereby operating the poppet valve body (5), and a small spool (7) having the function of an overload relief valve. The above construction reduces the number of components arranged in a flow passage through which a hydraulic fluid passes at a large flow rate, and hence a pressure loss. A further reduction in overall size and production cost of the valve unit is achieved.
摘要翻译：软管破裂控制阀单元包括设置有两个输入/输出端口（12）的壳体（100）。一个输入/输出端口（1）直接连接到液压缸（102）的底部端口，另一个输入/输出端口（2）经由致动器线路（105）连接到控制阀的致动器端口中的一个）。在壳体（100）内设置有用作主阀的提升阀体（5），用作先导阀的滑阀体（6），其以从手动提供的作为外部信号的先导压力操作先导阀（108），从而操作提升阀体（5），以及具有过载溢流阀功能的小型阀芯（7）。上述结构减少了布置在液压流体中以大流量通过的流动通道中的部件的数量，并因此减小了压力损失。实现阀单元的总体尺寸和生产成本的进一步减小。

5. 发明公开

EP0900889A3 Hydraulic circuit system for hydraulic working machine 有权
标题翻译：液压系统液压系统Arbeitsmaschine
公开(公告)号：EP0900889A3
公开(公告)日：1999-10-20
申请号：EP98116579.8
申请日：1998-09-02
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Toyooka, Tsukasa , Hirata, Toichi , Sugiyama, Genroku , Nakamura, Kazunori , Ishikawa, Kouji , Nakamura, Tsuyoshi
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 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：液压回路系统包括往复运动块（215），并且梭阀（216-220）布置并连接在往复运动块（215）内。从由先导操作单元（211,212,213）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值被选择以产生梭块（215）内的控制信号压力。控制信号压力被输出到诸如轨道连通阀，回转制动缸和用于液压泵的调节器之类的控制装置。

6. 发明授权

EP2107170B1 HYDRAULIC DRIVE SYSTEM FOR A CIVIL ENGINEERING OR CONSTRUCTION MACHINE. 有权
标题翻译：液压驱动装置，以便一ZIVILBAU-或土方机械。
公开(公告)号：EP2107170B1
公开(公告)日：2012-03-21
申请号：EP09159713.8
申请日：2000-01-18
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Toyooka, Tsukasa , Hirata, Toichi , Sugiyama, Genroku , Ishikawa, Kouji , Nishimura, Masao , Nakamura, Tsuyoshi
IPC分类号： E02F9/22
CPC分类号： E02F9/2267 , E02F9/2239 , E02F9/2242 , E02F9/2271 , E02F9/2292

7. 发明公开

EP2107170A3 Hydraulic driving device of civil engineering and construction machinery 有权
标题翻译：用于Zivilbau-和运土机械液压驱动装置。
公开(公告)号：EP2107170A3
公开(公告)日：2009-11-11
申请号：EP09159713.8
申请日：2000-01-18
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Toyooka, Tsukasa , Hirata, Toichi , Sugiyama, Genroku , Ishikawa, Kouji , Nishimura, Masao, Hitachi Kenki Tsukubaryo , Nakamura, Tsuyoshi, Hitachi Kenki Tsukubaryo
IPC分类号： E02F9/22
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. A valve opening area control means is provided for controlling drive of said merge control valve 14 such that, when a specific directional control valve included in said first control valve group 15a for controlling drive of an actuator to which a load pressure higher than a load pressure to an actuator controlled by said reserve directional control valve 11 may be applied is operated concurrently with a change-over operation of said reserve directional control valve 11 by said reserve control device 24, a valve opening area of said merge control valve is changed to a predetermined small valve opening area, and
said interlocked control means 26, 27 acts to hold said bypass on/off valve 7 at said closed position in response to a change-over operation of said reserve control device 24 even when said opening area of said merge control valve is reduced by said valve opening area control means 40.

8. 发明公开

EP2107170A2 Hydraulic driving device of civil engineering and construction machinery 有权
标题翻译： HYDRAULISCHE ANTRIEBSANORDNUNGFÜREINE ZIVILBAU- ODER ERDBEWEGUNGSMASCHINE。
公开(公告)号：EP2107170A2
公开(公告)日：2009-10-07
申请号：EP09159713.8
申请日：2000-01-18
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Toyooka, Tsukasa , Hirata, Toichi , Sugiyama, Genroku , Ishikawa, Kouji , Nishimura, Masao, Hitachi Kenki Tsukubaryo , Nakamura, Tsuyoshi, Hitachi Kenki Tsukubaryo
IPC分类号： E02F9/22
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. A valve opening area control means is provided for controlling drive of said merge control valve 14 such that, when a specific directional control valve included in said first control valve group 15a for controlling drive of an actuator to which a load pressure higher than a load pressure to an actuator controlled by said reserve directional control valve 11 may be applied is operated concurrently with a change-over operation of said reserve directional control valve 11 by said reserve control device 24, a valve opening area of said merge control valve is changed to a predetermined small valve opening area, and
said interlocked control means 26, 27 acts to hold said bypass on/off valve 7 at said closed position in response to a change-over operation of said reserve control device 24 even when said opening area of said merge control valve is reduced by said valve opening area control means 40.
摘要翻译：设有液压泵1,2，与泵1连接并包括旁通开关阀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设置在备用执行器控制方向控制阀11，用于连通或切断通信线路13的合并控制阀14，联锁控制装置，用于将合并控制阀14转换到打开位置，并且旁路开关阀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，其能够采取以下状态之一：其中通过联动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 通过互锁控制装置检查合并控制阀是不可行的。提供一种阀开放区域控制装置，用于控制所述合并控制阀14的驱动，使得当包括在所述第一控制阀组15a中的特定方向控制阀用于控制致动器的驱动时，负载压力高于负载压力可以通过所述储备控制装置24与所述备用方向控制阀11的转换动作同时操作由所述备用方向控制阀11控制的致动器，所述合并控制阀的阀开口面积变为预定的小阀开口面积，并且所述互锁控制装置26,27用于响应于所述储备控制装置24的转换操作，在所述关闭位置处保持所述旁路通/断阀7，即使所述合并的所述开口区域控制阀由所述阀开口区域控制装置40减小。

9. 发明公开

EP0922813A3 hydraulic drive system for hydraulic work vehicle 审中-公开
标题翻译：的液压作业车辆的液压作动系统
公开(公告)号：EP0922813A3
公开(公告)日：2000-04-12
申请号：EP98204096.6
申请日：1998-12-03
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Ishikawa, Kouji , Hirata, Toichi , Sugiyama, Genroku , Toyooka, Tsukasa , Nakamura, Tsuyoshi, c/o Tsukuba-ryo , Gotou, Yasuharu
IPC分类号： E02F9/22
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 (21) as a command pressure via a line (28) and a port (29), another signal guide system for guiding a pilot pressure of a pilot pump (22) as another command pressure via a line (30) and a port (31), a tilting control unit (23) for controlling the displacement of the pump (21) by the command pressures guided to the ports (29,31), a controller (33) having a command current-setting unit (34) for setting a relationship between a target engine speed and a command current, a target engine speed-indicating unit (35) for an engine (20), and a solenoid-operated proportional valve (32) for allowing the pilot pressure of the line (30) to pass as is while no drive signal is outputted from the controller (33) but for being reduced in opening to change the pilot pressure to a smaller value when a drive signal is outputted from the controller (33).

10. 发明公开

EP0908564A3 Control system for prime mover and hydraulic pump of hydraulic construction machine 有权
标题翻译： Steuersystemfürdie Antriebsmaschine und die hydraulische Pumpe einer Baumaschine
公开(公告)号：EP0908564A3
公开(公告)日：1999-11-17
申请号：EP98118904.6
申请日：1998-10-07
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Nakamura, Kazunori , Takahashi, Ei , Toyooka, Tsukasa , Ishikawa, Kouji , Nakamura, Tsuyoshi , Kowatari, Yoichi , Shimamura, Tadatoshi , Sugiyama, Genroku , Hirata, Toichi
IPC分类号： E02F9/22
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 (70a) calculates a reference delivery rate (QR10) of a hydraulic pump (1) by referring to a table stored in a memory based on a control pilot pressure (PL1) for the hydraulic pump. A target pump-delivery-rate calculating portion (70c) divides the reference delivery rate (QR10) by a ratio (NRC/NR1) of a maximum revolution speed NRC to a target engine revolution speed (NR1), thereby calculating a target delivery rate (QR11). A target pump tilting calculating portions (70e) divides the target delivery rate (QR11) by an actual engine revolution speed (NE1) and a constant (K1), thereby calculating a target tilting (θR1). A solenoid output current calculating portion (70g) calculates a drive current (S11) to provide the target tilting (θR1) and outputs the drive current (S11) to a solenoid control valve (30). The pump delivery rate is thereby controlled with good response following input change of operation instructing means.
摘要翻译：参考泵输送速率计算部分（70a）基于用于液压泵的控制先导压力（PL1）参考存储在存储器中的表格来计算液压泵（1）的参考输送速率（QR10）。目标泵输送速度计算部分（70c）将参考输出速率（QR10）除以最大转速NRC的比（NRC / NR1）与目标发动机转速（NR1），从而计算目标输送速率（QR11）。目标泵倾转计算部（70e）将目标输送速度（QR11）除以实际发动机转速（NE1）和常数（K1），从而计算目标倾斜（＆amp; t; R1）。螺线管输出电流计算部（70g）计算驱动电流（S11）以提供目标倾斜（＆amp; t; R1），并将驱动电流（S11）输出到电磁控制阀（30）。由此，在输入变化操作指示装置之后，以良好的响应来控制泵送出速度。

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