公开(公告)号：EP2652341B1

公开(公告)日：2014-12-03

申请号：EP11711229.2

申请日：2011-03-21

申请人： Parker-Hannifin Corporation

发明人： LOWMAN, Roger ,  FRANZONI, Germano ,  HARSIA, Jarmo

IPC分类号： F15B11/00 ,  F15B15/18

CPC分类号： F15B15/18 ,  F15B11/00 ,  F15B2211/3127 ,  F15B2211/3144 ,  F15B2211/50518 ,  F15B2211/50545 ,  F15B2211/5156 ,  F15B2211/6306 ,  F15B2211/632 ,  F15B2211/6336 ,  F15B2211/6346 ,  Y10T137/7837 ,  Y10T137/86027

公开(公告)号：EP1101039A1

公开(公告)日：2001-05-23

申请号：EP99948659.0

申请日：1999-07-20

申请人： Mannesmann Rexroth GmbH

发明人： DANTLGRABER, Jörg

IPC分类号： F15B11/05 ,  F15B21/14

CPC分类号： F15B1/02 ,  F15B11/055 ,  F15B21/087 ,  F15B21/14 ,  F15B2211/212 ,  F15B2211/214 ,  F15B2211/30525 ,  F15B2211/3059 ,  F15B2211/3122 ,  F15B2211/6313 ,  F15B2211/632 ,  F15B2211/6336 ,  F15B2211/665 ,  F15B2211/6654 ,  F15B2211/7052 ,  F15B2211/7058

摘要： The invention relates to a hydro-transformer which comprises a hydro-motor (4), a control valve (2), and a control device (7). A working connection (2A) of the control valve which can be optionally connected in a hydraulic manner to a pressure connection (2P) of the control valve or to a discharge connection (2T) of the control valve is connected to a first connection (4B) of the hydro-motor. The second connection (4C) of the hydro-motor is hydraulically connected to a drive element (5). The control valve (2) is controlled by the control device (7) in response to a signal which characterizes the volume flow in the hydro-motor. If the drive element is cylinder, the retraction thereof can be carried out at a constant speed and independent of load, and energy can be recovered during insertion. By providing an additional control valve (8) between the second connection of the hydro-motor and the drive element, a higher pressure can be generated on the drive element when the pressure on the pressure connection of the control valve is low.

公开(公告)号：EP3149343A4

公开(公告)日：2018-01-17

申请号：EP15803186

申请日：2015-06-02

申请人： PROJECT PHOENIX LLC

发明人： AFSHARI THOMAS

IPC分类号： F04C11/00 ,  F04C2/18 ,  F04C15/00 ,  F04C15/06 ,  F04C28/08 ,  F15B11/10 ,  F15B15/18

CPC分类号： F15B11/10 ,  E02F3/425 ,  E02F9/2271 ,  F04C2/14 ,  F04C2/18 ,  F04C15/008 ,  F04C15/06 ,  F04C28/08 ,  F04C2240/40 ,  F04C2240/402 ,  F04C2240/603 ,  F15B1/26 ,  F15B11/003 ,  F15B15/14 ,  F15B15/18 ,  F15B2211/2053 ,  F15B2211/275 ,  F15B2211/3057 ,  F15B2211/41563 ,  F15B2211/41572 ,  F15B2211/5157 ,  F15B2211/5158 ,  F15B2211/6306 ,  F15B2211/632 ,  F15B2211/6323 ,  F15B2211/6343 ,  F15B2211/6651 ,  F15B2211/6652 ,  F15B2211/6653 ,  F15B2211/6654 ,  F15B2211/6656 ,  F15B2211/7053 ,  F15B2211/7054 ,  F15B2211/75 ,  F15B2211/76

摘要： A linear actuator system includes a linear actuator and at least one integrated pump assembly connected to the linear actuator to provide fluid to operate the linear actuator. The integrated pump assembly includes a pump with at least one fluid driver comprising a prime mover and a fluid displacement assembly to be driven by the prime mover such that fluid is transferred from a first port of the pump to a second port of the pump. The pump assembly also includes two valve assembles to isolate the pump from the system. The linear actuator system also includes a controller that establishes at least one of a speed and a torque of the at least one prime mover to exclusively adjust at least one of a flow and a pressure in the linear actuator system to an operational set point.

公开(公告)号：EP3149343A1

公开(公告)日：2017-04-05

申请号：EP15803186.4

申请日：2015-06-02

申请人： Project Phoenix LLC

发明人： AFSHARI, Thomas

IPC分类号： F15B15/18

CPC分类号： F15B11/10 ,  E02F3/425 ,  E02F9/2271 ,  F04C2/14 ,  F04C2/18 ,  F04C15/008 ,  F04C15/06 ,  F04C28/08 ,  F04C2240/40 ,  F04C2240/402 ,  F04C2240/603 ,  F15B1/26 ,  F15B11/003 ,  F15B15/14 ,  F15B15/18 ,  F15B2211/2053 ,  F15B2211/275 ,  F15B2211/3057 ,  F15B2211/41563 ,  F15B2211/41572 ,  F15B2211/5157 ,  F15B2211/5158 ,  F15B2211/6306 ,  F15B2211/632 ,  F15B2211/6323 ,  F15B2211/6343 ,  F15B2211/6651 ,  F15B2211/6652 ,  F15B2211/6653 ,  F15B2211/6654 ,  F15B2211/6656 ,  F15B2211/7053 ,  F15B2211/7054 ,  F15B2211/75 ,  F15B2211/76

摘要： A linear actuator system includes a linear actuator and at least one integrated pump assembly connected to the linear actuator to provide fluid to operate the linear actuator. The integrated pump assembly includes a pump with at least one fluid driver comprising a prime mover and a fluid displacement assembly to be driven by the prime mover such that fluid is transferred from a first port of the pump to a second port of the pump. The pump assembly also includes two valve assembles to isolate the pump from the system. The linear actuator system also includes a controller that establishes at least one of a speed and a torque of the at least one prime mover to exclusively adjust at least one of a flow and a pressure in the linear actuator system to an operational set point.

摘要翻译： 线性致动器系统包括线性致动器和连接到线性致动器的集成泵组件，以提供流体来操作线性致动器。 集成泵组件包括具有两个流体驱动器的泵，每个流体驱动器包括原动机和由原动机驱动的流体驱替组件，使得流体从泵的第一端口转移到泵的第二端口 。 泵组件还包括两个阀组件，以将泵与系统隔离。 线性致动器系统还包括控制器，该控制器在正常操作模式下建立泵，其中原动机独立地被驱动并切换到仅操作一个原动机的故障安全操作模式。

公开(公告)号：EP2652341A1

公开(公告)日：2013-10-23

申请号：EP11711229.2

申请日：2011-03-21

申请人： Parker-Hannifin Corporation

发明人： LOWMAN, Roger ,  FRANZONI, Germano ,  HARSIA, Jarmo

IPC分类号： F15B21/08

CPC分类号： F15B15/18 ,  F15B11/00 ,  F15B2211/3127 ,  F15B2211/3144 ,  F15B2211/50518 ,  F15B2211/50545 ,  F15B2211/5156 ,  F15B2211/6306 ,  F15B2211/632 ,  F15B2211/6336 ,  F15B2211/6346 ,  Y10T137/7837 ,  Y10T137/86027

摘要： A hydraulic system (10) includes an electronically-controlled counter-pressure valve (60) that enables backpressure in a return line (36) of the system to be varied by a control unit (64). The system allows active control of the pressure in the return line to produce different return pressures for different situations. A higher return line pressure may be set to improve make-up or recirculating flow through an anti-cavitation valve (50). This may improve controllability of functions that benefit from backpressure, such as lowering loads (12). The control unit that controls the counter-pressure valve may take into account any of a wide variety of possible inputs when setting the counter-pressure valve.

公开(公告)号：EP3169858A4

公开(公告)日：2018-04-04

申请号：EP15822402

申请日：2015-07-15

申请人： EATON CORP

发明人： WANG MENG ,  RANNOW MICHAEL BERNE

IPC分类号： E04G21/04 ,  B66C13/06 ,  F15B19/00

CPC分类号： F15B21/008 ,  B66C13/066 ,  E04G21/0454 ,  F15B11/003 ,  F15B11/042 ,  F15B11/0445 ,  F15B19/005 ,  F15B2211/30515 ,  F15B2211/3057 ,  F15B2211/329 ,  F15B2211/355 ,  F15B2211/50509 ,  F15B2211/5059 ,  F15B2211/526 ,  F15B2211/6313 ,  F15B2211/632 ,  F15B2211/634 ,  F15B2211/6658 ,  F15B2211/855 ,  F15B2211/8616 ,  F15B2211/8636 ,  F15B2211/8752 ,  F16K31/426

摘要： A hydraulic system (600) and method for reducing boom dynamics of a boom (30), while providing counter-balance valve protection, includes a hydraulic actuator (110), first and second counter-balance valves (300, 400), first and second independent control valves (700, 800), and first and second blocking valves (350, 450). The actuator includes first and second corresponding chambers. In a first mode, the second counter-balance valve is opened by the first control valve, and the first counter-balance valve is opened by the second control valve. In a second mode, at least one of the counter-balance valves is closed. A meter-out control valve (800, 700) may be operated in a flow control mode, and/or a meter-in control valve (700, 800) may be operated in a pressure control mode. Boom dynamics reduction may occur while the boom is in motion (e.g., about a worksite). By opening the counter-balance valves, sensors at the control valves may be used to characterize external loads. The control valves may respond to the external loads and at least partially cancel unwanted boom dynamics. The system may further detecting faults in actuators with counter-balance valves and prevent any single point fault from causing a boom falling event and/or mitigate such faults.

公开(公告)号：EP3211250A1

公开(公告)日：2017-08-30

申请号：EP17152847.4

申请日：2017-01-24

申请人： AGCO International GmbH

发明人： Boulard, Nicolas

IPC分类号： F15B21/08 ,  E02F9/22 ,  A01B63/10 ,  G05D7/00

CPC分类号： F15B11/10 ,  A01B63/10 ,  A01B76/00 ,  E02F9/2228 ,  F15B2211/327 ,  F15B2211/40515 ,  F15B2211/426 ,  F15B2211/605 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/632 ,  F15B2211/6346 ,  F15B2211/6654 ,  G05D7/0635

摘要： There is described an agricultural system for hydraulic flow control. In a system having an adjustable hydraulic fluid valve arranged between a hydraulic reservoir and a hydraulic consumer, pressure is measured at the reservoir-facing side and at the consumer-facing side of the valve, from which the fluid flow through the valve can be determined. The valve can then be easily controlled to provide a desired fluid flow level, regardless of the type of hydraulic circuit used.

摘要翻译： 描述了用于液压流量控制的农业系统。 在具有布置在液压储存器和液压消耗器之间的可调节液压流体阀的系统中，在阀的面向储液器侧和面向消耗器侧的侧面处测量压力，从该处可以确定流过阀的流体流 。 无论使用哪种类型的液压回路，都可以轻松控制阀门以提供所需的流体流量。

公开(公告)号：EP2980322A3

公开(公告)日：2016-04-13

申请号：EP15175190.6

申请日：2015-07-03

申请人： Kobelco Construction Machinery Co., Ltd.

发明人： UEDA, Koji ,  IZUKA, Takaaki

IPC分类号： E02F9/12 ,  E02F9/22

CPC分类号： F15B21/082 ,  E02F9/123 ,  E02F9/2228 ,  E02F9/2235 ,  E02F9/226 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2296 ,  F15B11/04 ,  F15B11/08 ,  F15B13/024 ,  F15B13/0401 ,  F15B13/044 ,  F15B2211/20523 ,  F15B2211/20546 ,  F15B2211/255 ,  F15B2211/3116 ,  F15B2211/405 ,  F15B2211/50518 ,  F15B2211/6309 ,  F15B2211/6316 ,  F15B2211/632 ,  F15B2211/633 ,  F15B2211/6336 ,  F15B2211/6346 ,  F15B2211/6652 ,  F15B2211/6654 ,  F15B2211/7058

摘要： Provided is a slewing drive apparatus for a construction machine capable of satisfactory pump-flow-rate control regardless of change in engine speed, including a variable displacement hydraulic pump (10), a slewing motor (12), a slewing operation device (13), a control valve (14), a relief valve (20), and a pump-flow-rate control device (15, 16) that performs a relief cut control and includes: a section for detecting an engine revolution number Ne and a slewing speed of a slewing body (2, 17); a section for determining a target pump flow rate Qo that is a sum of a slewing-speed correspondence flow rate Q1 and a minimum required relief flow rate Qmin; a section for determining a target pump-tilt-angle qtg obtained by dividing the target pump flow rate Qo by the detected engine revolution number Ne; and a section for adjusting an actual pump-tilt-angle of the variable displacement hydraulic pump (10) so as to bring the actual pump-tilt-angle to the target pump-tilt-angle qtg.

公开(公告)号：EP1257430B1

公开(公告)日：2007-09-19

申请号：EP01908464.9

申请日：2001-02-16

申请人： Actuant Corporation

发明人： MENTINK, Laurentius, Andreas, Gerardus ,  WIGGEMANS, Johnny, Antonius, Jacobus

IPC分类号： B60J7/12 ,  F15B21/08 ,  F15B11/046

CPC分类号： B60J7/1273 ,  F15B11/028 ,  F15B11/046 ,  F15B11/20 ,  F15B21/08 ,  F15B2211/20515 ,  F15B2211/20561 ,  F15B2211/30505 ,  F15B2211/3052 ,  F15B2211/40515 ,  F15B2211/41527 ,  F15B2211/426 ,  F15B2211/45 ,  F15B2211/50518 ,  F15B2211/55 ,  F15B2211/613 ,  F15B2211/632 ,  F15B2211/6323 ,  F15B2211/633 ,  F15B2211/6336 ,  F15B2211/66 ,  F15B2211/6651 ,  F15B2211/6656 ,  F15B2211/7053 ,  F15B2211/71 ,  F15B2211/783

摘要： A hydraulic actuating device for a convertible top assembly of a motor vehicle. The actuating device comprises a hydraulic pump with an associated electric pump motor and one or more hydraulic actuators, each for driving an associated movable part of the convertible top assembly. The actuating device also comprises a control circuit for effecting a defined sequence of movements of the actuator(s) and feedback means, which are connected to the control unit, for feeding information relating to the sequence of movements of an actuator back to the control unit. The feedback means comprise means for measuring the electric power consumed by the pump motor, which means transmit a feedback signal to the control unit.

公开(公告)号：EP1298273B1

公开(公告)日：2004-08-25

申请号：EP02079036.6

申请日：2002-09-27

申请人： Actuant Corporation

发明人： Mentink, Laurentius Andreas Gerardus ,  Masseling, Willem Herman ,  van't Veen, Daniel

IPC分类号： E05F15/04 ,  B61D19/02 ,  F15B11/15 ,  F15B11/028

CPC分类号： F15B11/028 ,  B61D19/026 ,  E05F15/49 ,  E05Y2900/50 ,  E05Y2900/51 ,  F15B11/15 ,  F15B2211/20515 ,  F15B2211/20561 ,  F15B2211/30505 ,  F15B2211/50518 ,  F15B2211/50527 ,  F15B2211/5153 ,  F15B2211/528 ,  F15B2211/613 ,  F15B2211/632 ,  F15B2211/6651 ,  F15B2211/7053 ,  F15B2211/7716 ,  F15B2211/86 ,  F15B2211/8603