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1. 发明公开

EP2947211A4 FLOW CONTROL DEVICE AND FLOW CONTROL METHOD FOR CONSTRUCTION MACHINE 有权
标题翻译：流量控制装置和流控制方法用于建筑机械
公开(公告)号：EP2947211A4
公开(公告)日：2016-09-28
申请号：EP13871736
申请日：2013-01-18
申请人： VOLVO CONSTR EQUIP AB
发明人： JOUNG HEA-GYOON , KIM SUNG-GON
IPC分类号： E02F9/22 , F02D29/04 , F15B11/024 , F15B13/06
CPC分类号： F15B11/024 , E02F9/2217 , E02F9/2225 , E02F9/2228 , E02F9/2282 , E02F9/2296 , F15B13/026 , F15B13/027 , F15B2211/20546 , F15B2211/3133 , F15B2211/505
摘要： Disclosed are a flow control device and a flow control method for a construction machine for preventing the loss of fluid exhausted from a hydraulic pump when a boom and an arm of an excavator are operated in combination. The flow control device for a construction machine according to the present invention includes: an engine; a variable capacity hydraulic pump connected to the engine; a first hydraulic cylinder and a second hydraulic cylinder connected to the hydraulic pump; a first control valve disposed in a center bypass channel of the hydraulic pump, the first control valve, in neutral, returning the fluid exhausted from the hydraulic pump to a hydraulic tank and, when switched, controlling the driving, stopping, and direction change of the first hydraulic cylinder; a second control valve disposed downstream of the center bypass channel of the hydraulic pump, the second control valve, in neutral, returning the fluid exhausted from the hydraulic pump to the hydraulic tank and, when switched, controlling the driving, stopping, and direction change of the second hydraulic cylinder; a regeneration fluid channel for supplementing and reusing fluid returned to the hydraulic tank during a compression stroke of the first hydraulic cylinder, and a regeneration valve disposed in the regeneration fluid channel; and a pressure-compensated flow control valve which is disposed in a meter-in fluid channel of a spool of the first control valve and limits the quantity of working fluid supplied from the hydraulic pump to the first hydraulic cylinder when the first hydraulic cylinder and the second hydraulic cylinder are operated in combination.

2. 发明公开

EP2971891A4 SAFETY MECHANISM FOR A DIRECTIONAL CONTROL VALVE EQUIPPED WITH PNEUMATIC FLUID-RECYCLING DELAY FUNCTION 审中-公开
标题翻译：具有延迟气动液体反馈功能的阀的安全机构
公开(公告)号：EP2971891A4
公开(公告)日：2016-03-09
申请号：EP14767660
申请日：2014-03-14
申请人： AEROVALVE LLC
发明人： MELL ELLEN R , MELL DENNIS T
IPC分类号： F16K11/00 , F15B13/02 , F15B13/04 , F15B13/044 , F15B20/00 , F15B21/10
CPC分类号： F16K11/07 , F15B13/021 , F15B13/0402 , F15B13/0442 , F15B20/002 , F15B21/10 , F15B2013/0412 , F15B2211/30565 , F15B2211/3058 , F15B2211/3122 , F15B2211/3127 , F15B2211/3133 , F15B2211/8623 , F15B2211/88 , F15B2211/8855 , F16K31/02

3. 发明公开

EP2660481A4 ENERGY RECYCLING SYSTEM FOR A CONSTRUCTION APPARATUS 有权
标题翻译：能量回收系统建筑机械
公开(公告)号：EP2660481A4
公开(公告)日：2014-12-03
申请号：EP10861510
申请日：2010-12-27
申请人： VOLVO CONSTR EQUIP AB
发明人： SUK OK-JIN , LEE CHUN-HAN
IPC分类号： E02F9/22 , F15B13/02 , F15B13/044 , F15B21/14
CPC分类号： F15B11/205 , E02F9/2025 , E02F9/2217 , E02F9/2282 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B2211/20546 , F15B2211/20576 , F15B2211/30595 , F15B2211/3133 , F15B2211/6309 , F15B2211/6313 , F15B2211/7053 , F15B2211/7128 , F15B2211/85 , F15B2211/88

4. 发明公开

EP2589823A1 CONTROL CIRCUIT FOR ENERGY REGENERATION AND WORKING MACHINE 有权
标题翻译：控制电路能量再生和工作机器，
公开(公告)号：EP2589823A1
公开(公告)日：2013-05-08
申请号：EP11800901.8
申请日：2011-06-29
申请人： Caterpillar SARL
发明人： YOSHINO Tetsuya
IPC分类号： F15B21/14 , E02F9/22 , F15B11/00
CPC分类号： F04B7/00 , E02F9/2217 , E02F9/2292 , E02F9/2296 , F15B1/024 , F15B1/033 , F15B13/0814 , F15B21/14 , F15B2211/20546 , F15B2211/20576 , F15B2211/212 , F15B2211/3133 , F15B2211/7053 , F15B2211/7128 , F15B2211/761 , F15B2211/88
摘要： An energy recovery control circuit that requires less space for installation of an energy recovery system and costs thereof is provided. An energy recovery control circuit 40 includes an recovery control valve block 20 for recovering boom energy. The recovery control valve block 20 is provided between an output port 38 of a main control valve 33 and a parallelly arranged first boom cylinder 17c1 and second boom cylinder 17c2. The recovery control valve block 20 has a block main body 42, in which a plurality of valves, such as a main spool 43, are incorporated. A plurality of control characteristics concerning recovery of energy are consolidated in the main spool 43. The recovery control valve block 20 has functions such that the potential energy of the boom at a raised position is recovered from the first boom cylinder 17c1 and accumulated in an accumulator 41 during boom-down operation and that the oil accumulated in the accumulator 41 is directly released to the first boom cylinder 17c1 and the second boom cylinder 17c2 during boom-up operation.

5. 发明公开

EP1995385A2 Construction machinery 有权
标题翻译： Baumaschine
公开(公告)号：EP1995385A2
公开(公告)日：2008-11-26
申请号：EP08105263.1
申请日：2001-05-16
申请人： KOBELCO CONSTRUCTION MACHINERY CO., LTD.
发明人： Yoshimatsu, Hideaki
IPC分类号： E02F9/20 , E02F9/22
CPC分类号： E02F9/2292 , E02F9/2012 , E02F9/2075 , E02F9/2095 , E02F9/2228 , F15B11/165 , F15B11/167 , F15B21/087 , F15B2211/205 , F15B2211/20515 , F15B2211/20523 , F15B2211/20561 , F15B2211/20584 , F15B2211/212 , F15B2211/30505 , F15B2211/3051 , F15B2211/30525 , F15B2211/3056 , F15B2211/3111 , F15B2211/3127 , F15B2211/3133 , F15B2211/31576 , F15B2211/327 , F15B2211/329 , F15B2211/355 , F15B2211/45 , F15B2211/455 , F15B2211/46 , F15B2211/50518 , F15B2211/5151 , F15B2211/63 , F15B2211/6316 , F15B2211/6355 , F15B2211/6658 , F15B2211/67 , F15B2211/7135
摘要： First and second hydraulic pumps 15, 16 each adapted to operate plural actuators are activated by separate electric motors 13 and 14, respectively, and in accordance with signals which are provided from a controller 32 on the basis of operations of levers 26-31, the number of revolutions of the electric motor 13 and that of the electric motor 14 are controlled each independently and simultaneously to control the discharge rates of both hydraulic pumps 15 and 16.
摘要翻译：分别适用于操作多个致动器的第一和第二液压泵15,16分别由单独的电动机13和14激活，并且根据从控制器32提供的信号，基于杆26-31的操作，电动马达13的转数和电动马达14的转速分别独立地同时控制，以控制两个液压泵15和16的排出速度。

6. 发明公开

EP1103727A3 Hydraulische Betätigungsanordnung 审中-公开
标题翻译：液压驱动装置
公开(公告)号：EP1103727A3
公开(公告)日：2007-05-09
申请号：EP00890318.9
申请日：2000-10-19
申请人： Hoerbiger Automatisierungstechnik Holding GmbH
发明人： Huber, Gerhard
IPC分类号： F15B13/10 , E05F15/02 , E05F15/04 , B60J7/12 , B62D25/12
CPC分类号： F15B20/004 , B60J7/1273 , E05F15/50 , E05F15/53 , E05Y2900/542 , F15B11/024 , F15B13/10 , F15B2211/20561 , F15B2211/3133 , F15B2211/324 , F15B2211/327 , F15B2211/7053
摘要： Die beiden Arbeitsräume (2, 2';3) des Arbeitszylinders (1) einer hydraulischen Betätigungsanordnung sind bedarfsweise über ein schaltbares 2-Stellungsventil (11) direkt verbindbar, womit unabhängig von der den Arbeitszylinder (1) ansteuernden hydraulischen Schaltungsanordnung (6) bzw. auch bei ausgefallener oder abgeschalteter Druckmittelquelle (7) eine weitgehend widerstandslose händische Verstellung des zu betätigenden Elementes möglich ist.

7. 发明公开

EP1213486A3 Hydraulic unit with automatic regenerative system typically for log splitting machines operated by a single-acting cylinder-piston unit 有权
标题翻译：具有差动电路液压装置，例如，一个由一个单作用缸劈木设备操作
公开(公告)号：EP1213486A3
公开(公告)日：2004-01-07
申请号：EP01204395.6
申请日：2001-11-16
申请人： Bell S.R.L.
发明人： Magnani, Elio
IPC分类号： F15B11/024 , B27L7/00
CPC分类号： F15B11/024 , B27L7/00 , F15B2011/0243 , F15B2211/20515 , F15B2211/30505 , F15B2211/30525 , F15B2211/3058 , F15B2211/3133 , F15B2211/31576 , F15B2211/324 , F15B2211/50518 , F15B2211/55 , F15B2211/7052 , F15B2211/7716 , F15B2211/775
摘要： A hydraulic operating system for a tool, typically for a log splitting machine, comprising a single acting hydraulic cylinder-piston unit (9), a motor-driven pump (1) and a hydraulic distributor (5) arranged to selectively connect the piston chamber (90) of said cylinder-piston unit (9) to the pump delivery (4) or to discharge (15), in which the piston rod chamber (91) of the cylinder-piston unit (9) is connected to the piston chamber (90) by a conduit (13) comprising a unidirectional valve (130) which prevents oil transfer towards the piston rod chamber (91), and to the oil reservoir (3) by a discharge conduit (12) closed by a preset overpressure valve (120) sensitive to the pump delivery pressure and by a separate suction conduit (14) provided with a unidirectional valve (140) which prevents oil flow towards the reservoir (3).

8. 发明公开

EP1213486A2 Hydraulic unit with automatic regenerative system typically for log splitting machines operated by a single-acting cylinder-piston unit 有权
标题翻译： Holzspaltgerätmit einer DifferentialSaltung eines einfach-wirkenden hydraulischen Zylinder
公开(公告)号：EP1213486A2
公开(公告)日：2002-06-12
申请号：EP01204395.6
申请日：2001-11-16
申请人： Bell S.R.L.
发明人： Magnani, Elio
IPC分类号： F15B11/024 , B27L7/00
CPC分类号： F15B11/024 , B27L7/00 , F15B2011/0243 , F15B2211/20515 , F15B2211/30505 , F15B2211/30525 , F15B2211/3058 , F15B2211/3133 , F15B2211/31576 , F15B2211/324 , F15B2211/50518 , F15B2211/55 , F15B2211/7052 , F15B2211/7716 , F15B2211/775
摘要： A hydraulic operating system for a tool, typically for a log splitting machine, comprising a single acting hydraulic cylinder-piston unit (9), a motor-driven pump (1) and a hydraulic distributor (5) arranged to selectively connect the piston chamber (90) of said cylinder-piston unit (9) to the pump delivery (4) or to discharge (15), in which the piston rod chamber (91) of the cylinder-piston unit (9) is connected to the piston chamber (90) by a conduit (13) comprising a unidirectional valve (130) which prevents oil transfer towards the piston rod chamber (91), and to the oil reservoir (3) by a discharge conduit (12) closed by a preset overpressure valve (120) sensitive to the pump delivery pressure and by a separate suction conduit (14) provided with a unidirectional valve (140) which prevents oil flow towards the reservoir (3).
摘要翻译：一种用于工具的液压操作系统，通常用于对数分解机，包括单作用液压缸 - 活塞单元（9），电动泵（1）和液压分配器（5），其被布置成选择性地连接活塞室（9）的活塞杆（90）连接到活塞室（4）上，或排出（15），其中气缸 - 活塞单元（9）的活塞杆室（91）连接到活塞室（90）通过包括单向阀（130）的导管（13），所述单向阀（130）防止油向所述活塞杆室（91）传递，并且通过排出导管（12）通过预设的超压阀（120），并且具有单向阀（140）的单独的吸入管道（14），所述单向阀（140）防止油流向储存器（3）。

9. 发明公开

EP1103727A2 Hydraulische Betätigungsanordnung 审中-公开
标题翻译： HydraulischeBetätigungsanordnung
公开(公告)号：EP1103727A2
公开(公告)日：2001-05-30
申请号：EP00890318.9
申请日：2000-10-19
申请人： Hoerbiger Hydraulik GmbH
发明人： Huber, Gerhard
IPC分类号： F15B13/10 , E05F15/02 , E05F15/04 , B60J7/12 , B62D25/12
CPC分类号： F15B20/004 , B60J7/1273 , E05F15/50 , E05F15/53 , E05Y2900/542 , F15B11/024 , F15B13/10 , F15B2211/20561 , F15B2211/3133 , F15B2211/324 , F15B2211/327 , F15B2211/7053
摘要： Die beiden Arbeitsräume (2, 2';3) des Arbeitszylinders (1) einer hydraulischen Betätigungsanordnung sind bedarfsweise über ein schaltbares 2-Stellungsventil (11) direkt verbindbar, womit unabhängig von der den Arbeitszylinder (1) ansteuernden hydraulischen Schaltungsanordnung (6) bzw. auch bei ausgefallener oder abgeschalteter Druckmittelquelle (7) eine weitgehend widerstandslose händische Verstellung des zu betätigenden Elementes möglich ist.
摘要翻译：操作装置具有带有两个工作空腔（2,3）的工作缸（1）。如果需要，这些空腔可以通过可切换的两位置阀11彼此直接连接，使得即使液压供应（7）不工作，也可以实际上不用手动地设置要被操作的元件。

10. 发明授权

EP0436028B1 HYDRAULIC CIRCUIT FOR OPERATING CYLINDER OF WORKING MACHINE 失效
标题翻译：液压回路操作机器。
公开(公告)号：EP0436028B1
公开(公告)日：1995-08-16
申请号：EP90909396.5
申请日：1990-06-26
申请人： KABUSHIKI KAISHA KOMATSU SEISAKUSHO
发明人： SHIRAI, Kiyoshi Kawasaki Factory Kabushiki Kaisha , AKIYAMA, Teruo Kawasaki Factory Kabushiki Kaisha , SHINOHARA, S. K.Fact. Kabushiki Kaisha Komatsu , ISHIZAKI, Naoki Kawasaki Factory Kabushiki Kaisha , TAKIGUCHI, T. Kawasaki Factory Kabushiki Kaisha
IPC分类号： F15B13/02
CPC分类号： F15B11/024 , E02F9/2221 , F15B13/021 , F15B2011/0243 , F15B2211/20546 , F15B2211/30505 , F15B2211/3054 , F15B2211/30555 , F15B2211/3058 , F15B2211/3111 , F15B2211/3133 , F15B2211/31529 , F15B2211/31576 , F15B2211/329 , F15B2211/6054 , F15B2211/75 , Y10T137/87185
摘要： A hydraulic circuit for operating the cylinder of a working machine in such an arrangement that the working machine is lowered by weight thereof at the time of a compaction operation using the bucket and, at the time of other operations, part of pressure oil in a chamber on the lifting side of a working cylinder in addition to pressure oil discharged from the pump is fed to a chamber on the lowering side so as to increase contracting speed of the cylinder of the working machine. The hydraulic circuit for opearting the cylinder is provided with: a spool inserted into a hole inside an operating valve body so as to be displaceable within the range from a first operation position (I), at which a second port (21) of the operating valve (2) communicating with the chamber (3b) on the lowering side communicates with a second tank port (22) and a first port (15) of the operating valve communicating with the chamber (3a) on the lifting side communicates with a first pump port (17), to a second operation position (II) at which said second port and second pump port (20) communicate with each other and said first port with a first tank port (14); a recovered oil passage (26) formed in the valve body so that said first and second ports may communicate with each other; and a check valve (25) disposed in said recovered oil passage.

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