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11. 发明公开

EP0881335A2 Engine control system for construction machine 失效
标题翻译：汽车保险公司
公开(公告)号：EP0881335A2
公开(公告)日：1998-12-02
申请号：EP98109533.4
申请日：1998-05-26
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Nakamura, Kazunori
IPC分类号： E02F9/22
CPC分类号： E02F9/2235 , E02F9/2246 , E02F9/2285 , E02F9/2292 , E02F9/2296
摘要： The pump controller 40 determines pump load torques T r1 , T r2 from tilting signals θ 1 , θ 2 of hydraulic pumps 1, 2 and delivery pressure signals P D1 , P D2 of the hydraulic pumps 1, 2 based on T r1 = K·θ 1 ·P D1 and T r2 = K·θ 2 ·P D2 (K: constant), and adds these pump load torques to provide a resulting value as an engine load torque signal T. Using the signal T, an engine controller 50 calculates fuel injecting timing depending on the engine load torque to control a timer actuator 55. This makes it possible to control the fuel injection timing with good response and high accuracy following load fluctuation, achieve optimum combustion, and prevent such a deterioration of exhaust gas as caused by the generation of No x .
摘要翻译：泵控制器40根据Tr1 = K和Thetas; 1的液压泵1,2的倾斜信号和液压泵1,2的液压泵1,2的输出压力信号PD1，PD2确定泵负载转矩Tr1，Tr2; .PD1和Tr2 = K＆amp; t; 2.PD2（K：常数），并加上这些泵负载转矩，以提供作为发动机负载转矩信号T的结果值。使用信号T，发动机控制器50计算燃料喷射正时这取决于用于控制定时器致动器55的发动机负载转矩。这使得可以在负载波动后以良好的响应和高精度来控制燃料喷射正时，实现最佳燃烧，并且防止由发电引起的排气恶化的Nox。

12. 发明授权

EP0462590B1 Hydraulic drive system for civil-engineering and construction machine 失效
标题翻译：施工的液压传动装置
公开(公告)号：EP0462590B1
公开(公告)日：1995-12-27
申请号：EP91110047.7
申请日：1991-06-19
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Nakamura, Kazunori , Tanaka, Hideaki
IPC分类号： F15B11/05
CPC分类号： E02F9/2235 , E02F9/2232 , E02F9/2296 , F15B11/165 , F15B2211/20538 , F15B2211/20553 , F15B2211/253 , F15B2211/30535 , F15B2211/3111 , F15B2211/3144 , F15B2211/31576 , F15B2211/324 , F15B2211/50536 , F15B2211/71 , Y10T137/87185

13. 发明公开

EP0445703A3 Hydraulic drive system 失效
标题翻译：液压驱动系统
公开(公告)号：EP0445703A3
公开(公告)日：1992-04-08
申请号：EP91103234.0
申请日：1991-03-04
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , KAYABA INDUSTRY CO., LTD.
发明人： Hirata, Toichi , Tanaka, Hideaki , Nakamura, Kazunori , Koiwai, Hideshi , Takahashi, Yoneaki
IPC分类号： E02F9/22
CPC分类号： E02F9/2232 , E02F9/2217 , Y10T137/87185
摘要： A hydraulic drive system comprises a flow control valve (21) having variable restrictors (19-22) to control a flow rate of the hydraulic fluid, a pressure compensating valve (17) for holding constant a differential pressure across the variable restrictor (19, 20), and a recovery circuit (40) having a recovery line (42) with a check valve (43) allowing only a flow of the hydraulic fluid toward the supply line (23). Through the recovery circuit (40) hydraulic fluid returns to the supply line (23) at a portion between the pressure compensating valve (17) and the variable restrictor (19, 20) upon controlling by the variable restrictor (21, 22). A third variable restrictor (41) disposed in the return line (26) controls a recovery pressure of the hydraulic fluid returned to the supply line (23) and is arranged to change its restriction amount dependent upon an input amount of the flow rate control valve (11).
摘要翻译：一种液压驱动系统包括：流量控制阀（21），其具有用于控制液压流体的流量的可变限流器（19-22）;压力补偿阀（17），其用于保持恒定可变限流器（19,20） 20）和具有回流管路（42）的回收回路（40），所述回收管路具有止回阀（43），仅允许液压流体流向供应管路（23）。通过回收回路（40），在可变节流阀（21,22）的控制下，液压流体在压力补偿阀（17）和可变节流阀（19,20）之间的部分返回到供应管路（23）。设置在回流管线（26）中的第三可变节流器（41）控制返回到供应管线（23）的液压流体的回收压力，并且布置成根据流量控制阀（11）。

14. 发明公开

EP0445703A2 Hydraulic drive system 失效
标题翻译： Hydraulisch angetriebenes系统。
公开(公告)号：EP0445703A2
公开(公告)日：1991-09-11
申请号：EP91103234.0
申请日：1991-03-04
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , KAYABA INDUSTRY CO., LTD.
发明人： Hirata, Toichi , Tanaka, Hideaki , Nakamura, Kazunori , Koiwai, Hideshi , Takahashi, Yoneaki
IPC分类号： E02F9/22
CPC分类号： E02F9/2232 , E02F9/2217 , Y10T137/87185
摘要： A hydraulic drive system comprises a flow control valve (21) having variable restrictors (19-22) to control a flow rate of the hydraulic fluid, a pressure compensating valve (17) for holding constant a differential pressure across the variable restrictor (19, 20), and a recovery circuit (40) having a recovery line (42) with a check valve (43) allowing only a flow of the hydraulic fluid toward the supply line (23). Through the recovery circuit (40) hydraulic fluid returns to the supply line (23) at a portion between the pressure compensating valve (17) and the variable restrictor (19, 20) upon controlling by the variable restrictor (21, 22). A third variable restrictor (41) disposed in the return line (26) controls a recovery pressure of the hydraulic fluid returned to the supply line (23) and is arranged to change its restriction amount dependent upon an input amount of the flow rate control valve (11).
摘要翻译：液压驱动系统包括具有可变节流器（19-22）的流量控制阀（21），用于控制液压流体的流量;压力补偿阀（17），用于保持横跨可变节流器 20）和具有仅允许液压流体朝向供给管线（23）流动的止回阀（43）的回收管线（42）的回收回路（40）。通过恢复电路（40），在由可变节流器（21,22）控制时，液压流体在压力补偿阀（17）和可变节流器（19,20）之间的部分处返回供给管线（23）。设置在返回管线（26）中的第三变量限制器（41）控制返回到供给管线（23）的液压流体的回收压力，并且被设置为根据流量控制阀的输入量来改变其限制量（11）。

15. 发明授权

EP2354331B1 Hydraulic drive device for hydraulic excavator 失效
标题翻译：液压挖掘机液压驱动装置
公开(公告)号：EP2354331B1
公开(公告)日：2018-05-16
申请号：EP11153786.6
申请日：2011-02-09
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Hagiwara, Naoki , Okano, Yasuo , Nakamura, Tsuyoshi , Ishikawa, Kouji , Nakamura, Kazunori
IPC分类号： E02F9/22
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 16 and a second arm directional control valve 18, which are connected in parallel tandem with a first hydraulic pump 11; a first arm directional control valve 21 that is connected to a second hydraulic pump 12; and a flow rate restriction device that restricts the flow rate of pressure oil supplied to the second arm directional control valve 18, during crowd operation of a bucket 6. This flow rate restriction device includes a variable throttle 30 whose opening is controlled so as to become smaller as a bucket operating device 28 is operated to the crowd side, the variable throttle 30 being provided in a bypass path 29a connecting to the supply port of the second arm directional control valve 18.

16. 发明公开

EP2354331A3 Hydraulic drive device for hydraulic excavator 失效
标题翻译：的液压挖掘机的液压驱动装置
公开(公告)号：EP2354331A3
公开(公告)日：2012-02-22
申请号：EP11153786.6
申请日：2011-02-09
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Hagiwara, Naoki , Okano, Yasuo , Nakamura, Tsuyoshi , Ishikawa, Kouji , Nakamura, Kazunori
IPC分类号： E02F9/22
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 16 and a second arm directional control valve 18, which are connected in parallel tandem with a first hydraulic pump 11; a first arm directional control valve 21 that is connected to a second hydraulic pump 12; and a flow rate restriction device that restricts the flow rate of pressure oil supplied to the second arm directional control valve 18, during crowd operation of a bucket 6. This flow rate restriction device includes a variable throttle 30 whose opening is controlled so as to become smaller as a bucket operating device 28 is operated to the crowd side, the variable throttle 30 being provided in a bypass path 29a connecting to the supply port of the second arm directional control valve 18.

17. 发明公开

EP2354331A2 Hydraulic drive device for hydraulic excavator 失效
标题翻译： Hydraulikantriebsvorrichtungfüreine hydraulische Baumaschine
公开(公告)号：EP2354331A2
公开(公告)日：2011-08-10
申请号：EP11153786.6
申请日：2011-02-09
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Hagiwara, Naoki , Okano, Yasuo , Nakamura, Tsuyoshi , Ishikawa, Kouji , Nakamura, Kazunori
IPC分类号： E02F9/22
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 16 and a second arm directional control valve 18, which are connected in parallel tandem with a first hydraulic pump 11; a first arm directional control valve 21 that is connected to a second hydraulic pump 12; and a flow rate restriction device that restricts the flow rate of pressure oil supplied to the second arm directional control valve 18, during crowd operation of a bucket 6. This flow rate restriction device includes a variable throttle 30 whose opening is controlled so as to become smaller as a bucket operating device 28 is operated to the crowd side, the variable throttle 30 being provided in a bypass path 29a connecting to the supply port of the second arm directional control valve 18.
摘要翻译：可以提高执行组合斗杆和铲斗操作的可操作性。一种用于液压挖掘机的液压驱动装置包括：与第一液压泵11并联连接的铲斗方向控制阀16和第二臂方向控制阀18; 与第二液压泵12连接的第一臂方向控制阀21; 以及流量限制装置，其限制在铲斗6的群体操作期间供应到第二臂方向控制阀18的压力油的流量。该流量限制装置包括可变节流阀30，其可开度被控制成为随着斗式操作装置28对人群的操作而变小，可变节流阀30设置在连接到第二臂方向控制阀18的供给口的旁通路29a中。

18. 发明公开

EP2275985A1 Management system and method for exhaust purification apparatus 有权转让
标题翻译： Verwaltungssystem und VerfahrenfürAbgasreinigungsvorrichtung
公开(公告)号：EP2275985A1
公开(公告)日：2011-01-19
申请号：EP10006722.2
申请日：2010-06-29
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Shibamori, Kazuhiro , Tsukada, Hidenobu , Nakamura, Kazunori , Kowatari, Yoichi
IPC分类号： G06Q30/00 , F02D41/02
CPC分类号： F01N3/106 , F01N3/0253 , F01N3/103 , F01N13/0097 , F01N2610/03 , F02D41/021 , F02D41/029 , F02D2041/1433 , F02D2200/0812 , G06Q30/04 , G06Q30/0645
摘要： In a server (10), a standard setting section (11) establishes a standard amount of deposits and a standard amount of money of a maintenance charge in advance; a first calculating section (12) calculates the maintenance charge by multiplying the standard amount of money by a ratio of a deposition level at returning to a standard deposition level; a memory section (13) stores in memory an engine operating time, the number of regeneration sequences performed, and a reduction coefficient table; a second calculating section (14) establishes a reduction coefficient based on the reduction coefficient table and reduces the maintenance charge after reduction by multiplying the maintenance charge calculated by the first calculating section (12) by the reduction coefficient; and a third calculating section (15) calculates an amount of refund by subtracting the value of the maintenance charge from the value of a maintenance guarantee.
摘要翻译：在服务器（10）中，标准设定部（11）预先设定标准的存款金额和维护费用的标准金额; 第一计算部分（12）通过将标准货币量乘以返回到标准沉积水平的沉积水平的比率来计算维护费用; 存储器部分（13）在存储器中存储引擎操作时间，执行的再生序列的数量和缩小系数表; 第二计算部（14）基于所述减小系数表建立缩小系数，并且通过将由所述第一计算部（12）计算出的维护费用乘以所述缩小系数来减小所述维护费用; 第三计算部（15）通过从维护保证的值减去维护费用的值来计算退款金额。

19. 发明授权

EP2119836B1 Traveling hydraulic working machine 有权
标题翻译：移动式液压作业机
公开(公告)号：EP2119836B1
公开(公告)日：2010-07-28
申请号：EP09009183.6
申请日：2004-07-30
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Nakamura, Tsuyoshi , Sugiyama, Genroku , Nakamura, Kazunori , Hirata, Toichi
IPC分类号： E02F9/22 , F02D29/02 , F02D31/00
CPC分类号： F02D41/021 , E02F9/2246 , F02D29/02 , F02D31/001

20. 发明授权

EP0884422B1 Engine control system for construction machine 失效
公开(公告)号：EP0884422B1
公开(公告)日：2003-09-10
申请号：EP98110414.4
申请日：1998-06-08
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Nakamura, Kazunori , Takahashi, Ei , Hirata, Toichi
IPC分类号： E02F9/22
CPC分类号： E02F9/2296 , E02F9/2235 , E02F9/2246 , E02F9/225 , E02F9/2292

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