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1. 发明授权

EP2657536B1 RELIEF PRESSURE CONTROL DEVICE FOR HYDRAULIC WORK MACHINE 有权
公开(公告)号：EP2657536B1
公开(公告)日：2019-09-11
申请号：EP11850636.9
申请日：2011-12-07
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： AZUMA Hiroyuki , NAKAMURA Tsuyoshi , TSUKADA Hidenobu , SATO Kensuke , OKANO Yasuo
IPC分类号： F15B11/028 , E02F9/22 , F15B19/00

2. 发明公开

EP2918854A1 HYDRAULIC DRIVE DEVICE FOR CONSTRUCTION MACHINERY 有权
标题翻译：液压传动装置用于建筑机械
公开(公告)号：EP2918854A1
公开(公告)日：2015-09-16
申请号：EP13852377.4
申请日：2013-10-15
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： SATO Kensuke , NAKAMURA Tsuyoshi , ISHIKAWA Kouji
IPC分类号： F15B21/14 , E02F9/22 , F15B11/02 , F15B11/028
CPC分类号： E02F9/2217 , E02F9/2075 , E02F9/2095 , E02F9/2221 , E02F9/2282 , E02F9/2285 , E02F9/2296 , F15B11/024 , F15B21/14 , F15B2011/0246 , F15B2211/20569 , F15B2211/3058 , F15B2211/40515 , F15B2211/41527 , F15B2211/41563 , F15B2211/6313 , F15B2211/6316 , F15B2211/88
摘要： During boom-midair lowering operation in which a front work implement 130 can be turned under the self-weight of a boom 131, a hydraulic pump/motor 7 is operated as a motor to operate a generator/electric motor 10 as a generator. Power generation operation is performed by the hydraulic fluid discharged from a bottom-side chamber 5b of a boom cylinder 5 to recover positional energy. During jack-up in which the front work implement 130 cannot be turned under the self-weight of the boom 131, the generator/electric motor 10 is operated as an electric motor to operate the hydraulic pump/motor 7 as a pump. The jack-up is performed by supplying the hydraulic fluid from the bottom-side chamber 5b to rod-side chamber 5a of the boom cylinder 5 without supplying the hydraulic fluid from the main pump 2 to the rod-side chamber 5a of the boom cylinder 5.
摘要翻译：在吊臂131的自重作用下能够转动前作业机130的吊臂 - 空中下降运转时，液压泵/电动机7作为电动机工作，使发电机/电动机10作为发电机工作。通过从动臂缸5的底侧室5b排出的液压流体进行发电操作以恢复位置能量。在前部工作装置130不能在吊杆131的自重作用下转动的顶升装置期间，发电机/电动机10作为电动机运行，以使液压泵/电动机7作为泵工作。在不将来自主泵2的工作油供给到动臂油缸的杆侧室5a的情况下，通过从底侧室5b向动臂油缸5的杆侧室5a供给工作油来进行顶升 5。

3. 发明公开

EP2415981A1 HYDRAULIC DRIVE APPARATUS FOR CONSTRUCTION EQUIPMENT 审中-公开
标题翻译： HYDRAULISCHE ANTRIEBSVORRICHTUNGFÜREINE BAUMASCHINE
公开(公告)号：EP2415981A1
公开(公告)日：2012-02-08
申请号：EP10753494.3
申请日：2010-03-15
申请人： Hitachi Construction Machinery Co., Ltd
发明人： HAGIWARA Naoki , NAKAMURA Tsuyoshi , SATO Kensuke , OKANO Yasuo , ISHIKAWA Kouji , EZAWA Masanori
IPC分类号： F01N3/02 , E02F9/00 , E02F9/22 , F02D29/04 , F15B11/00
CPC分类号： F02D41/0245 , E02F9/226 , E02F9/2282 , E02F9/2285 , E02F9/2296 , E02F9/265 , F02D41/029 , F02D2041/026 , F02D2200/604 , F15B11/024 , F15B21/14 , Y02T10/26
摘要： Disclosed is a hydraulic drive system for a working machine, which enables to provide improved safety during forced regeneration. Upon input of a forced regeneration command signal (So) from a forced regeneration switch (65), a controller (60) detects non-operated states of all hydraulic actuators such as an arm cylinder (17) arranged on a hydraulic excavator (1) based on a lock detection signal (S1) from a gate lock detection switch (52), and also an attitude of a front working mechanism (12), said attitude being proper from the standpoint of safety, based on an arm angle signal (Sa) from an arm angle sensor (53), a bucket angle signal (Sb) from a bucket angle sensor (54) and a boom pressure signal (Spb) from a boom pressure sensor (55). Taking the detection of the non-operated states and proper attitude as conditions, the controller (60) outputs control signals (Cp,Cf) to a boosting proportional solenoid valve (62) and flow-rate controlling, proportional solenoidvalve (64) to make a forced regeneration means (boosting proportional solenoid valve (62), boosting on/off valve (61), flow-rate controlling, proportional solenoid valve (64), regulator (63)) conduct forced regeneration.
摘要翻译：公开了一种用于工作机械的液压驱动系统，其能够在强制再生期间提供改进的安全性。在从强制再生开关（65）输入强制再生命令信号（So）的情况下，控制器（60）检测所有液压致动器（例如布置在液压挖掘机1上的斗杆缸）17的非操作状态，基于来自门锁检测开关（52）的锁定检测信号（S1）以及前工作机构（12）的姿势，基于手臂角度信号（Sa），从安全性的观点来看，所述姿态是适当的），来自铲斗角度传感器（54）的铲斗角度信号（Sb）和来自起重臂压力传感器（55）的起重臂压力信号（Spb）。控制器（60）将非操作状态和适当姿态的检测作为条件，将控制信号（Cp，Cf）输出到升压比例电磁阀（62）和流量控制比例电磁阀（64），使强制再生装置（升压比例电磁阀62，升压开关阀61，流量控制，比例电磁阀64，调节器63）进行强制再生。

4. 发明公开

EP2679730A1 CONSTRUCTION MACHINE 审中-公开
标题翻译：施工机械
公开(公告)号：EP2679730A1
公开(公告)日：2014-01-01
申请号：EP12749206.4
申请日：2012-01-06
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： SATO Kensuke , NAKAMURA Tsuyoshi , KOBAYASHI Takahiro , AZUMA Hiroyuki
IPC分类号： E02F9/18 , E02F9/00
CPC分类号： E02F9/0866 , B62D49/085 , E02F3/30 , E02F9/18
摘要： On a rear part side of a revolving frame (5) constituting an upper revolving structure (3), a counterweight (7) holding weight balance with a working mechanism (4) is provided, and on the front side of the counterweight (7), an engine (9) and an exhaust gas post-treatment device (21) for applying purification treatment to an exhaust gas of the engine (9) are provided. The exhaust gas post-treatment device (21) is configured by connecting a PM trapping filter device (22) and an NOx purifying device (23), and the PM trapping filter device (22) is mounted on the engine (9), while the NOx purifying device (23) is mounted on the counterweight (7). When the counterweight (7) is to be removed from the revolving frame (5), the NOx purifying device (23) is supported by a treatment device support bracket (26) mounted on the engine (9). As a result, the counterweight (7) can be removed while the PM trapping filter device (22) and the NOx purifying device (23) are connected.
摘要翻译：在构成上部回转体（3）的回转框架（5）的后部侧，设有与工作机构（4）保持重量平衡的对重（7），在对重（7）的前侧，，发动机（9）和用于对发动机（9）的排气进行净化处理的排气后处理装置（21）。废气后处理装置21通过连接PM捕集过滤装置22和NOx净化装置23而构成，PM捕集过滤装置22安装在发动机9上， NOx净化装置（23）安装在配重（7）上。当将配重7从旋转架5上卸下时，NOx净化装置23由安装在发动机9上的处理装置支承托架26支承。其结果是，能够在PM捕集过滤器装置（22）和NOx净化装置（23）连接的状态下拆下配重（7）。

5. 发明公开

EP2679426A1 CONSTRUCTION MACHINE 审中-公开
标题翻译：施工机械
公开(公告)号：EP2679426A1
公开(公告)日：2014-01-01
申请号：EP12750244.1
申请日：2012-01-19
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： KOBAYASHI Takahiro , NAKAMURA Tsuyoshi , SATO Kensuke , AZUMA Hiroyuki
IPC分类号： B60K13/04 , E02F9/00 , F01N13/08
CPC分类号： E02F9/0866 , B60K13/04 , B60W2300/17 , F01N13/1816 , F01N13/1822 , F01N2530/22 , F01N2590/08
摘要： On an upper revolving structure (3), an engine (8) having an exhaust port (9A) is mounted. In the midway portion of the exhaust pipe (16) connecting the exhaust port (9A) of the engine (8) and an exhaust gas post-treatment device (22), a first bellows pipe (18) and a second bellows pipe (20) are arranged through a connecting pipe (19) having an L-shaped bending portion (19A) . In this case, the first bellows pipe (18) and the second bellows pipe (20) are arranged so as to have a positional relationship in which axis lines thereof (X1-X1, Z1-Z1) cross each other. That is, the first bellows pipe (18) is arranged in a horizontal direction so that its axis line (X1-X1) extends in the left-right direction of the upper revolving structure (3). The second bellows pipe (20) is arranged so that its axis line (Z1-Z1) matches the vertical direction of the upper revolving structure (3).
摘要翻译：在上部回转体（3）上安装具有排气口（9A）的发动机（8）。在连接发动机（8）的排气口（9A）和废气后处理装置（22）的排气管（16）的中途部分，设置有第一波纹管（18）和第二波纹管）通过具有L形弯曲部分（19A）的连接管（19）布置。在这种情况下，第一波纹管18和第二波纹管20布置成具有其轴线（X1-X1，Z1-Z1）彼此交叉的位置关系。即，第一波纹管（18）以其轴线（X1-X1）沿上部回转体（3）的左右方向延伸的方式沿水平方向配置。第二波纹管（20）以其轴线（Z1-Z1）与上部回转体（3）的上下方向一致的方式配置。

6. 发明公开

EP2535468A1 HYDRAULIC EXCAVATOR ATTACHMENT CONTROL DEVICE 审中-公开
标题翻译： STE UNG ER ER ER ER ER ER ER ER ER ER ER ER ER ER ER ER ER ER ER
公开(公告)号：EP2535468A1
公开(公告)日：2012-12-19
申请号：EP10845805.0
申请日：2010-11-29
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： AZUMA Hiroyuki , NAKAMURA Tsuyoshi , OKANO Yasuo , ISHIKAWA Kouji
IPC分类号： E02F9/22 , E02F9/24 , F15B20/00
CPC分类号： E02F9/2228 , E02F3/963 , E02F3/966 , E02F9/2282 , E02F9/2292 , E02F9/2296
摘要： In an attachment control apparatus for a hydraulic excavator having a hydraulic circuit that includes a hydraulic pump 3, a plurality of actuators having a breaker 110 which is an attachment actuator, and a plurality of flow control valves having an attachment flow control valve B4 that is switched by operation pilot pressure from a control pedal device 7 to supply delivery fluid of the hydraulic pump 3 to the attachment actuator, if the control pedal device 7 is operated in a state where an attachment mode is not selected by an attachment selection device 20, the movement of the attachment actuator is limited. Thus, failure and reduced life of the attachment and other hydraulic devices can be prevented in the event that an operator has forgotten to switch from a normal mode to an attachment mode and has operated the attachment.
摘要翻译：在具有包括液压泵3的液压回路的液压挖掘机的安装控制装置中，具有作为安装致动器的断路器110的多个致动器和具有附接流量控制阀B4的多个流量控制阀如果控制踏板装置7在附件选择装置20没有选择附接模式的状态下操作，则由操纵踏板装置7的操作先导压力切换以将液压泵3的输送流体供应到附件致动器，附件致动器的移动受到限制。因此，在操作者已经忘记从正常模式切换到附接模式并且已经操作附件的情况下，可以防止附件和其他液压装置的故障和减少的寿命。

7. 发明公开

EP2530266A1 EXHAUST-GAS PURIFICATION SYSTEM FOR HYDRAULIC CONSTRUCTION EQUIPMENT 审中-公开
标题翻译：水泥ÜR UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG
公开(公告)号：EP2530266A1
公开(公告)日：2012-12-05
申请号：EP11737111.2
申请日：2011-01-27
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： ARAI Yasushi , ISHIKAWA Kouji , KAMIYA Shohei , TSUKADA Hidenobu , NAKAMURA Tsuyoshi
IPC分类号： F01N3/02 , F02D29/00
CPC分类号： F02D41/0245 , B01D53/944 , B01D53/9495 , B01D2258/012 , E02F9/0866 , E02F9/2066 , E02F9/2235 , E02F9/2296 , F01N3/023 , F01N9/002 , F01N2560/06 , F01N2560/08 , F01N2590/08 , F02D29/04 , F02D41/029 , F02D41/1448 , F02D2041/026 , Y02T10/26
摘要： When an output value of an exhaust resistance sensor 34 has reached or exceeded a set value ΔPa, a controller 20 executes recovery control of a filter of an exhaust gas purification device 32 after conducting exhaust temperature increasing control by operating a pump discharge pressure increasing device (solenoid proportional valve) 38 so that exhaust gas temperature as an output value of an exhaust temperature sensor 33 reaches a preset value Ta. Thus, the recovery process of the exhaust gas purification device can be executed with reliability by increasing the exhaust gas temperature irrespective of the operating environment and the fuel consumption can be kept at a minimum necessary level.
摘要翻译：当排气阻力传感器34的输出值达到或超过设定值“Pa”时，控制器20在通过操作泵排出增压装置进行排气升温控制之后执行废气净化装置32的过滤器的恢复控制（电磁比例阀）38，使得作为排气温度传感器33的输出值的废气温度达到预设值Ta。因此，废气净化装置的回收处理可以通过增加废气温度而可靠地执行，而与操作环境无关，并且燃料消耗可以保持在最低必要水平。

8. 发明授权

EP2664715B1 CONSTRUCTION MACHINE 有权
公开(公告)号：EP2664715B1
公开(公告)日：2019-10-30
申请号：EP12734171.7
申请日：2012-01-10
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： KOBAYASHI Takahiro , NAKAMURA Tsuyoshi , SATO Kensuke , AZUMA Hiroyuki
IPC分类号： E02F9/00 , F01N3/08

9. 发明公开

EP2664715A1 CONSTRUCTION MACHINE 有权
标题翻译：施工机械
公开(公告)号：EP2664715A1
公开(公告)日：2013-11-20
申请号：EP12734171.7
申请日：2012-01-10
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： KOBAYASHI Takahiro , NAKAMURA Tsuyoshi , SATO Kensuke , AZUMA Hiroyuki
IPC分类号： E02F9/00 , F01N3/08
摘要： To provide a construction machine in which the temperature of a battery and aqueous urea within an aqueous urea tank can be prevented from rising and high stability can be secured in the vehicle body.
A small turning type hydraulic excavator (1) including: a counterweight (6) disposed at the rear of a turning upperstructure (3) provided with a front work machine (4) in the front thereof; an engine (5a) disposed within an engine room (5) in front of the counterweight (6); a heat exchanger (15) exchanging heat with the engine (5a); a fan (16) introducing outside air from an intake port (5b) formed in the exterior of the engine room (5) into the engine room (5) to cool the heat exchanger (15); a tail pipe (20) disposed on the exterior of the engine room (5); an aqueous urea tank (12) storing aqueous urea that purifies the exhaust gas discharged from the engine (5a) ; and batteries (13a, 13b) supplying electric power to the engine (5a), wherein: both the aqueous urea tank (12) and the batteries (13a, 13b) are disposed on an upstream side of the heat exchanger (15) in a flow direction of the outside air.
摘要翻译：本发明提供一种能够防止尿素水箱内的电池和尿素水的温度上升，并且能够确保车身的高稳定性的工程机械。一种小型旋转式液压挖掘机（1），其包括：配重（6），其配置在设置有前部作业机械（4）的旋转体（3）的后方; 布置在配重（6）前方的发动机室（5）内的发动机（5a）; 与发动机（5a）进行热交换的热交换器（15）; 将形成于发动机室5的外部的进气口5b的外部空气导入发动机室5并冷却热交换器15的风扇16。设置在发动机室（5）外部的尾管（20）; 储存用于净化从发动机（5a）排出的废气的尿素水的尿素水箱（12）; 和向所述发动机（5a）供给电力的电池（13a，13b），其中，所述尿素水箱（12）和所述电池（13a，13b）两者配置在所述热交换器（15）的上游侧外部空气的流动方向。

10. 发明公开

EP2530208A1 HYDRAULIC WORK MACHINE 审中-公开
标题翻译：水力发电机
公开(公告)号：EP2530208A1
公开(公告)日：2012-12-05
申请号：EP11737089.0
申请日：2011-01-27
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： KARASAWA Hideo , ARIGA Nobuei , NAKAMURA Tsuyoshi
IPC分类号： E02F9/22 , F15B11/028 , F15B11/04
CPC分类号： E02F9/2253 , E02F9/2282 , E02F9/2285 , E02F9/2292 , F15B2211/20576 , F15B2211/3116 , F15B2211/50518 , F15B2211/528 , F15B2211/5753 , F15B2211/6309 , F15B2211/7135 , F15B2211/763 , F16H61/4017 , F16H61/4061 , F16H61/4148 , F16H61/421 , F16H61/423 , F16H61/44 , F16H61/47
摘要： Disclosed is a hydraulic working machine, which has a travel speed control unit and a boost control unit and makes it possible to reduce the number of components relevant to these travel speed control unit and boost control unit. The hydraulic working machine, typically a hydraulic excavator is provided with a travel speed control unit and a boost control unit. The travel speed control unit includes a traveling, hydraulic pressure oil feed unit capable of feeding pressure oil to actuate traveling tilt-angle control devices (21,22) that control tilt angles of travel motors (15, 16). The boost control unit includes a boosting, hydraulic pressure oil feed unit capable of feeding pressure oil to actuate an adjustable relief valve (23) that can change a preset relief pressure. The hydraulic excavator is provided with only a single hydraulic pressure oil feed unit commonly usable as the traveling, hydraulic pressure oil feed unit and boosting, hydraulic pressure oil feed unit. This single hydraulic pressure oil feed unit is provided with lines (30,31) communicating with both of the traveling tilt-angle control devices (21,22) and the adjustable relief valve (23), a solenoidvalve (32) for opening or closing these lines (30, 31), and a controller (35) for outputting a control signal to control the solenoid valve (32).
摘要翻译：公开了一种具有行驶速度控制单元和升压控制单元的液压加工机，能够减少与这些行驶速度控制单元和升压控制单元相关的部件的数量。液压作业机械，通常为液压挖掘机，设有行驶速度控制单元和升压控制单元。行驶速度控制单元包括行进的液压供油单元，其能够供给压力油来致动用于控制行驶马达（15,16）的倾斜角度的行驶倾斜角度控制装置（21,22）。升压控制单元包括升压液压供油单元，其能够供给压力油来致动可改变预设溢流压力的可调节溢流阀（23）。液压挖掘机仅设有通常用作行驶的液压供油单元和升压液压供油单元的单个液压供油单元。该单个液压供油单元设置有与两个行进倾斜角度控制装置（21,22）和可调节安全阀（23）连通的管路（30,31），用于打开或关闭的螺线管阀（32）这些管线（30,31）和用于输出控制电磁阀（32）的控制信号的控制器（35）。

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