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1. 发明公开

EP3006744A1 HYDRAULIC DRIVE DEVICE FOR CONSTRUCTION MACHINERY 有权转让
标题翻译：液压传动装置用于建筑机械
公开(公告)号：EP3006744A1
公开(公告)日：2016-04-13
申请号：EP14804940.6
申请日：2014-04-21
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： TAKAHASHI Kiwamu , TSURUGA Yasutaka , TAKEBAYASHI Yoshifumi , MORI Kazushige , NAKAMURA Natsuki
IPC分类号： F15B11/02 , E02F9/22 , F15B11/17 , F15B11/00
CPC分类号： F15B11/17 , E02F3/325 , E02F3/425 , E02F9/2239 , E02F9/2267 , E02F9/2292 , E02F9/2296 , F15B2211/20576 , F15B2211/20584 , F15B2211/255 , F15B2211/2654 , F15B2211/2656 , F15B2211/30535 , F15B2211/30565 , F15B2211/31535 , F15B2211/41518 , F15B2211/465 , F15B2211/7135 , F15B2211/7142
摘要： To cope with a variety of flow rate balance required of two actuators flexibly in combined operations driving two actuators of high maximum demanded flow rates at the same time while suppressing the wasteful energy consumption caused by the throttle pressure loss in a pressure compensating valve, the arrangement is such that when the demanded flow rate of a boom cylinder 3a is lower than a prescribed flow rate, the boom cylinder 3a is driven only by hydraulic fluid delivered from a single flow type main pump 202 and when the demanded flow rate of the boom cylinder 3a is higher than the prescribed flow rate, the hydraulic fluid delivered from the single flow type main pump 202 and hydraulic fluid delivered from a first delivery port 102a of a split flow type main pump 102 are merged together and the boom cylinder 3a is driven by the merged fluids. Further, when the demanded flow rate of an arm cylinder 3b is lower than a prescribed flow rate, the arm cylinder 3b is driven only by hydraulic fluid delivered from a second delivery port 102b of the split flow type main pump 102 and when the demanded flow rate of the arm cylinder 3b is higher than the prescribed flow rate, hydraulic fluid delivered from the first delivery port 102a and hydraulic fluid delivered from the second delivery port 102b are merged together and the arm cylinder 3b is driven by the merged fluids.
摘要翻译：为了在抑制由压力补偿阀中的节流压力损失引起的无用能量消耗的同时驱动两个高最大需求流量的致动器的组合操作中灵活地应对两个致动器所需的各种流量平衡，当动臂油缸3a的要求流量低于规定流量时，动臂油缸3a仅由从单流型主泵202输出的工作油驱动，在动臂油缸的要求流量 3a高于规定流量时，从单流型主泵202输出的液压流体和从分流式主泵102的第一输出口102a输出的液压流体汇合在一起，并且动臂缸3a由合并的流体。另外，臂部缸3b的要求流量比规定流量少时，仅通过从分流式主泵102的第二排出口102b排出的工作油驱动斗杆缸3b，在要求流量臂缸3b的流量比规定流量大时，从第一排出口102a排出的工作油和从第二排出口102b排出的工作油合流，臂缸3b被合流后的流体驱动。

2. 发明授权

EP2940315B1 HYDRAULIC CONTROL DEVICE AND CONSTRUCTION MACHINE WITH SAME 有权
标题翻译：液压控制装置及工程机械
公开(公告)号：EP2940315B1
公开(公告)日：2018-02-14
申请号：EP13869346.0
申请日：2013-12-20
申请人： Kobelco Construction Machinery Co., Ltd.
发明人： GOTO, Naoki , UEDA, Koji , TAJIMA, Kazuharu
IPC分类号： F15B11/02 , F15B11/028 , F15B11/17 , F15B13/06 , E02F9/22 , E02F3/32 , E02F3/42
CPC分类号： E02F3/425 , E02F3/32 , E02F9/2235 , E02F9/2242 , E02F9/2267 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B13/06 , F15B2211/20538 , F15B2211/20546 , F15B2211/20576 , F15B2211/30565 , F15B2211/31535 , F15B2211/411 , F15B2211/41509 , F15B2211/6313 , F15B2211/665 , F15B2211/71
摘要： A boom cylinder circuit (16) is provided with a boom control valve (24) for controlling supply and discharge of hydraulic oil to and from a boom cylinder (9), and a merge switching valve (25) operable to be switched between a supply position (P4) at which hydraulic oil is suppliable from a first hydraulic pump (14) to the boom control valve (24), and a blocking position (P5) at which a flow of hydraulic oil is blocked. A controller (23) switches the merge switching valve (25) to the blocking position (P5) when a combined operation of a boom lowering operation and an arm pushing operation is detected by pilot pressure sensors (20, 22), and switches the merge switching valve (25) to the supply position (P4) when only one of the boom lowering operation and the arm pushing operation is detected.

3. 发明公开

EP0053370A3 Method to control a hydraulic mechanism, and hydraulic mechanism suited to carry out said method 失效
标题翻译：控制液压机械的方法和液压机构，用于实施方法
公开(公告)号：EP0053370A3
公开(公告)日：1983-05-04
申请号：EP81109942
申请日：1981-11-27
申请人： Leybold-Heraeus GmbH
发明人： Bubeck, Friedrich , Polhede, Wilhelm , Reimpell, Uwe, Dr. , Stark, Friedrich
IPC分类号： F15B11/04
CPC分类号： F15B11/048 , F15B2211/212 , F15B2211/3056 , F15B2211/31535 , F15B2211/327 , F15B2211/40584 , F15B2211/41581 , F15B2211/426 , F15B2211/46 , F15B2211/625 , F15B2211/665 , F15B2211/6654 , F15B2211/755

4. 发明公开

EP3306110A1 HYDRAULIC DRIVE DEVICE FOR WORKING MACHINE 有权转让
标题翻译：工作机械用液压传动装置
公开(公告)号：EP3306110A1
公开(公告)日：2018-04-11
申请号：EP16802848.8
申请日：2016-02-22
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： AMANO, Hiroaki , ISHIKAWA, Kouji , IMURA, Shinya , MORIKI, Hidekazu , YAMASHITA, Ryohei , HIJIKATA, Seiji
IPC分类号： F15B11/00 , E02F9/20 , E02F9/22 , F15B11/02 , F15B11/17
CPC分类号： E02F9/2228 , E02F3/32 , E02F3/425 , E02F9/2004 , E02F9/2075 , E02F9/2091 , E02F9/2239 , E02F9/2267 , E02F9/2271 , E02F9/2285 , E02F9/2292 , E02F9/2296 , E02F9/26 , E02F9/268 , F15B11/165 , F15B11/17 , F15B2211/20515 , F15B2211/20523 , F15B2211/20546 , F15B2211/20576 , F15B2211/275 , F15B2211/31529 , F15B2211/31535 , F15B2211/31547 , F15B2211/351 , F15B2211/45 , F15B2211/605 , F15B2211/6309 , F15B2211/6313 , F15B2211/6316 , F15B2211/6651 , F15B2211/71 , F15B2211/7135 , F15B2211/7142 , F15B2211/88
摘要： Disclosed is a hydraulic drive system capable of improving the fuel efficiency of a work machine by reducing the pressure loss and drag loss of a hydraulic pump.
There are provided an electric motor M; a third pump P3 driven by the electric motor; a third pump hydraulic line L3 to which the delivered hydraulic fluid from the third pump is supplied; a third directional control valve V4 provided in the third pump hydraulic line, switch-operated by an arm operation device 19, and controlling the flow rate of the hydraulic fluid supplied to the arm cylinder 8 from the third hydraulic pump; and a controller 18 drive-controlling the electric motor, wherein the controller drives the third pump by the electric motor when a swing/arm combined operation is detected by pilot pressure sensors S6, S7, S10, S11.
摘要翻译：公开了一种液压驱动系统，其能够通过降低液压泵的压力损失和曳力损失来提高作业机械的燃料效率。提供了电动机M; 由电动机驱动的第三泵P3; 第三泵液压管线L3，来自第三泵的输送液压流体输送到该第三泵液压管线L3; 第三方向控制阀V4，其设置在第三泵液压管路中，由臂操作装置19进行切换操作，并且控制从第三液压泵供给到斗杆液压缸8的液压流体的流量; 以及对电动机进行驱动控制的控制器18，其中当由先导压力传感器S6，S7，S10，S11检测到摆动/臂组合操作时，控制器通过电动机驱动第三泵。

5. 发明公开

EP3006744A4 HYDRAULIC DRIVE DEVICE FOR CONSTRUCTION MACHINERY 有权转让
标题翻译： HYDRAULISCHE ANTRIEBSVORRICHTUNGFÜREINE BAUMASCHINE
公开(公告)号：EP3006744A4
公开(公告)日：2017-02-22
申请号：EP14804940
申请日：2014-04-21
申请人： HITACHI CONSTRUCTION MACH CO
发明人： TAKAHASHI KIWAMU , TSURUGA YASUTAKA , TAKEBAYASHI YOSHIFUMI , MORI KAZUSHIGE , NAKAMURA NATSUKI
IPC分类号： F15B11/02 , E02F3/32 , E02F3/42 , E02F9/22 , F15B11/00 , F15B11/17
CPC分类号： F15B11/17 , E02F3/325 , E02F3/425 , E02F9/2239 , E02F9/2267 , E02F9/2292 , E02F9/2296 , F15B2211/20576 , F15B2211/20584 , F15B2211/255 , F15B2211/2654 , F15B2211/2656 , F15B2211/30535 , F15B2211/30565 , F15B2211/31535 , F15B2211/41518 , F15B2211/465 , F15B2211/7135 , F15B2211/7142
摘要： To cope with a variety of flow rate balance required of two actuators flexibly in combined operations driving two actuators of high maximum demanded flow rates at the same time while suppressing the wasteful energy consumption caused by the throttle pressure loss in a pressure compensating valve, the arrangement is such that when the demanded flow rate of a boom cylinder 3a is lower than a prescribed flow rate, the boom cylinder 3a is driven only by hydraulic fluid delivered from a single flow type main pump 202 and when the demanded flow rate of the boom cylinder 3a is higher than the prescribed flow rate, the hydraulic fluid delivered from the single flow type main pump 202 and hydraulic fluid delivered from a first delivery port 102a of a split flow type main pump 102 are merged together and the boom cylinder 3a is driven by the merged fluids. Further, when the demanded flow rate of an arm cylinder 3b is lower than a prescribed flow rate, the arm cylinder 3b is driven only by hydraulic fluid delivered from a second delivery port 102b of the split flow type main pump 102 and when the demanded flow rate of the arm cylinder 3b is higher than the prescribed flow rate, hydraulic fluid delivered from the first delivery port 102a and hydraulic fluid delivered from the second delivery port 102b are merged together and the arm cylinder 3b is driven by the merged fluids.
摘要翻译：为了在抑制由压力补偿阀中的节流压力损失引起的无用能量消耗的同时驱动两个高最大需求流量的致动器的组合操作中灵活地应对两个致动器所需的各种流量平衡，当动臂油缸3a的要求流量低于规定流量时，动臂油缸3a仅由从单流型主泵202输出的工作油驱动，在动臂油缸的要求流量 3a高于规定流量时，从单流型主泵202输出的液压流体和从分流式主泵102的第一输出口102a输出的液压流体汇合在一起，并且动臂缸3a由合并的流体。另外，臂部缸3b的要求流量比规定流量少时，仅通过从分流式主泵102的第二排出口102b排出的工作油驱动斗杆缸3b，在要求流量臂缸3b的流量比规定流量大时，从第一排出口102a排出的工作油和从第二排出口102b排出的工作油合流，臂缸3b被合流后的流体驱动。

6. 发明授权

EP2297468B1 APPARATUS FOR HYDRAULICALLY ACTUATING PROCESSING MACHINES SUCH AS METAL FORMING MACHINES AND METHOD FOR ACTUATING SUCH METAL FORMING MACHINES 有权
标题翻译：装置：用于操作这样的金属压型机机器，如金属模板机器和方法的液压控制
公开(公告)号：EP2297468B1
公开(公告)日：2014-06-04
申请号：EP09777458.2
申请日：2009-07-27
申请人： Oilgear Towler S.A.S.
发明人： JAMET, Frédéric
IPC分类号： F15B3/00
CPC分类号： F15B3/00 , B30B15/16 , F15B2211/20546 , F15B2211/20576 , F15B2211/214 , F15B2211/30565 , F15B2211/31535 , F15B2211/31558

7. 发明公开

EP2940315A4 HYDRAULIC CONTROL DEVICE AND CONSTRUCTION MACHINE WITH SAME 有权
标题翻译：液压控制装置及施工机器
公开(公告)号：EP2940315A4
公开(公告)日：2016-04-06
申请号：EP13869346
申请日：2013-12-20
申请人： KOBELCO CONSTR MACH CO LTD
发明人： GOTO NAOKI , UEDA KOJI , TAJIMA KAZUHARU
IPC分类号： F15B11/02 , E02F3/32 , E02F3/42 , E02F9/22 , F15B11/028 , F15B11/17 , F15B13/06
CPC分类号： E02F3/425 , E02F3/32 , E02F9/2235 , E02F9/2242 , E02F9/2267 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B13/06 , F15B2211/20538 , F15B2211/20546 , F15B2211/20576 , F15B2211/30565 , F15B2211/31535 , F15B2211/411 , F15B2211/41509 , F15B2211/6313 , F15B2211/665 , F15B2211/71
摘要： A boom cylinder circuit (16) is provided with a boom control valve (24) for controlling supply and discharge of hydraulic oil to and from a boom cylinder (9), and a merge switching valve (25) operable to be switched between a supply position (P4) at which hydraulic oil is suppliable from a first hydraulic pump (14) to the boom control valve (24), and a blocking position (P5) at which a flow of hydraulic oil is blocked. A controller (23) switches the merge switching valve (25) to the blocking position (P5) when a combined operation of a boom lowering operation and an arm pushing operation is detected by pilot pressure sensors (20, 22), and switches the merge switching valve (25) to the supply position (P4) when only one of the boom lowering operation and the arm pushing operation is detected.

8. 发明公开

EP2940315A1 HYDRAULIC CONTROL DEVICE AND CONSTRUCTION MACHINE WITH SAME 有权
标题翻译：巴伐利亚州水力发电机组（HYDRAULISCHE STEUERUNGSVORRICHTUNG UND BAUMASCHINE DAMIT）
公开(公告)号：EP2940315A1
公开(公告)日：2015-11-04
申请号：EP13869346.0
申请日：2013-12-20
申请人： Kobelco Construction Machinery Co., Ltd.
发明人： GOTO, Naoki , UEDA, Koji , TAJIMA, Kazuharu
IPC分类号： F15B11/02 , E02F9/22 , F15B11/00 , F15B11/028
CPC分类号： E02F3/425 , E02F3/32 , E02F9/2235 , E02F9/2242 , E02F9/2267 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B13/06 , F15B2211/20538 , F15B2211/20546 , F15B2211/20576 , F15B2211/30565 , F15B2211/31535 , F15B2211/411 , F15B2211/41509 , F15B2211/6313 , F15B2211/665 , F15B2211/71
摘要： A boom cylinder circuit (16) is provided with a boom control valve (24) for controlling supply and discharge of hydraulic oil to and from a boom cylinder (9), and a merge switching valve (25) operable to be switched between a supply position (P4) at which hydraulic oil is suppliable from a first hydraulic pump (14) to the boom control valve (24), and a blocking position (P5) at which a flow of hydraulic oil is blocked. A controller (23) switches the merge switching valve (25) to the blocking position (P5) when a combined operation of a boom lowering operation and an arm pushing operation is detected by pilot pressure sensors (20, 22), and switches the merge switching valve (25) to the supply position (P4) when only one of the boom lowering operation and the arm pushing operation is detected.
摘要翻译：动臂气缸回路（16）设有用于控制液压油与动臂缸（9）的供给和排出的动臂控制阀（24），以及合流切换阀（25），其可操作以在供给液压油从第一液压泵（14）供应到动臂控制阀（24）的位置（P4）以及液压油流动被阻挡的阻止位置（P5）。当通过先导压力传感器（20,22）检测到动臂下降操作和手臂按压操作的组合操作时，控制器（23）将合并切换阀（25）切换到挡块位置（P5），并切换合并当仅检测到动臂下降操作和手臂按压操作中的一个时，切换阀（25）到供给位置（P4）。

9. 发明公开

EP2867119A1 ZONAL HYDRAULIC SYSTEMS AND METHODS 有权
标题翻译： ZONALE HYDRAULIKSYSTEME UNDOVERHREN
公开(公告)号：EP2867119A1
公开(公告)日：2015-05-06
申请号：EP13734903.1
申请日：2013-06-20
申请人： Eaton Corporation
发明人： HANSEN, Nicholas, John , JONES, Joseph, Matthew , BENAWAY, Barry
IPC分类号： B64C13/42 , F15B11/17
CPC分类号： B64C13/42 , F15B11/17 , F15B20/00 , F15B20/004 , F15B2211/20576 , F15B2211/30505 , F15B2211/30565 , F15B2211/3138 , F15B2211/31535 , F15B2211/329 , F15B2211/355 , F15B2211/8633 , F15B2211/8752 , Y10T137/87209
摘要： The present disclosure relates to isolation and reconfiguration schemes, architectures and methods for use in aircraft hydraulic systems. The main hydraulic system of each hydraulic section of the aircraft hydraulic system can be isolated from one or more consumers in the event of a leak without the use pressure from the backup system. Further, in some embodiments, the main hydraulic system of each hydraulic section of the aircraft hydraulic system can be isolated from one or more consumers in the event of a leak without the use pressure from the backup system and the main system.
摘要翻译：本公开涉及用于飞行器液压系统的隔离和重新配置方案，架构和方法。在没有来自备用系统的使用压力的情况下，飞机液压系统的每个液压部分的主液压系统可以与一个或多个消费者隔离。此外，在一些实施例中，在没有来自备用系统和主系统的使用压力的情况下，飞行器液压系统的每个液压部分的主液压系统可以与一个或多个使用者隔离。

10. 发明公开

EP2263012A1 HYDRAULIC ACTUATOR WITH FLOATING PISTONS 有权
标题翻译：游泳活塞液压机构
公开(公告)号：EP2263012A1
公开(公告)日：2010-12-22
申请号：EP08873340.7
申请日：2008-11-26
申请人： Woodward HRT, Inc.
发明人： FENNY, Carlos, A. , KINARD, Marc, W. , LAUFFER, John
IPC分类号： F15B15/14 , F15B20/00
CPC分类号： H03C1/34 , B64C13/42 , F15B2211/20576 , F15B2211/31535 , F15B2211/324 , F15B2211/7054 , F15B2211/7055 , F15B2211/7056 , F15B2211/7107 , F15B2211/8757 , H03C7/00 , Y02T50/44 , Y10T137/86606
摘要： A hydraulic actuator is configured to provide redundant boost control to an aircraft within approximately the same space required by a single hydraulic cylinder. The hydraulic actuator includes a housing and a piston assembly disposed within the housing. The piston assembly includes a ram, a first piston secured to the ram, and second and third pistons disposed on the ram such that the second and third pistons are translatable relative to the longitudinal axis pf the ram. The pistons form two hydraulically separate actuator cylinders within the space required by a single cylinder which results in a reduction in the weight and size of the hydraulic actuator.

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