公开(公告)号：US20180306211A1

公开(公告)日：2018-10-25

申请号：US15769351

申请日：2015-10-19

申请人： NORRHYDRO OY

发明人： Ari SIPOLA ,  Mika SAHLMAN

IPC分类号： F15B11/00 ,  F15B11/036 ,  F15B1/027

CPC分类号： F15B11/006 ,  F15B1/027 ,  F15B11/036 ,  F15B11/0426 ,  F15B2211/20569 ,  F15B2211/20592 ,  F15B2211/212 ,  F15B2211/30575 ,  F15B2211/3144 ,  F15B2211/327 ,  F15B2211/40592 ,  F15B2211/7055 ,  F15B2211/76

摘要： A hydraulic system and a method comprising a linear actuator 23 for generating discrete sum forces, chambers A-D for generating discrete force components, at least two charging circuits 3,4 configured to maintain predetermined pressure levels of hydraulic fluid, independent control interfaces 9-16 configured to open and close connections of the first and second charging circuits to the chambers, and an electronic control unit 50 for controlling the control interfaces. At least two control interfaces are proportional valves which are used as shut-off valves and are independently switchable to the open and closed positions in a controlled manner. Moreover, non-throttled control and secondary control are implemented in the hydraulic system and the method.

公开(公告)号：US20180128290A1

公开(公告)日：2018-05-10

申请号：US15808212

申请日：2017-11-09

申请人： Eaton Corporation

发明人： Meng Wang ,  Michael Berne Rannow

IPC分类号： F15B13/04 ,  G01N3/08 ,  F16K37/00

CPC分类号： F15B19/002 ,  F15B11/006 ,  F15B13/0417 ,  F15B19/00 ,  F15B19/005 ,  F15B19/007 ,  F15B21/087 ,  F15B2013/0409 ,  F15B2211/20546 ,  F15B2211/30575 ,  F15B2211/455 ,  F15B2211/46 ,  F15B2211/6313 ,  F15B2211/634 ,  F15B2211/6346 ,  F15B2211/6656 ,  F15B2211/7053 ,  F15B2211/7058 ,  F15B2211/761 ,  F15B2211/855 ,  F15B2211/857 ,  F15B2211/87 ,  G01F1/36 ,  G01F15/005

摘要： Systems and methods for auto-commissioning first and second valve assemblies associated with an actuator in an electro-hydraulic system are disclosed. In one method, a controller performs an automatic test protocol to determine a bulk modulus over fluid volume parameter used by the controller to control the valve assemblies. In one aspect, the test protocol can include pressurizing each side of the actuator to two different pressures with one of the first and second valve assemblies and blocking the other side of the actuator with the other of the first and second valve assemblies. The bulk modulus over fluid volume parameter for each valve assembly can be calculated based on recorded fluid pressures at the actuator and consumed flow at the first and second valve assemblies.

公开(公告)号：US09829015B2

公开(公告)日：2017-11-28

申请号：US14547527

申请日：2014-11-19

申请人： Liebherr-Mining Equipment Colmar SAS

发明人： Patrick Stephan ,  Pascal Progin ,  Michael Deeken ,  Volker Gliniorz ,  Phlipp Hahn

IPC分类号： F16D31/02 ,  F15B13/04 ,  F15B13/044 ,  F15B11/00 ,  F15B13/042

CPC分类号： F15B13/0417 ,  F15B11/006 ,  F15B13/0402 ,  F15B13/0405 ,  F15B13/0426 ,  F15B13/044 ,  F15B2211/20576 ,  F15B2211/30575 ,  F15B2211/329 ,  F15B2211/353 ,  F15B2211/365 ,  F15B2211/41518 ,  F15B2211/5059 ,  F15B2211/761 ,  Y10T137/87169

摘要： The present invention relates to a hydraulic valve arrangement for controlling/regulating at least one hydraulic consumer of a mobile machine, with a summation interconnection of at least two hydraulic valves and at least one consumer interconnection of hydraulic valves, wherein the outputs of the summation interconnection are hydraulically connected with the inputs of the consumer interconnection, wherein at least one backflow valve is provided in the consumer interconnection. According to the invention, the at least one backflow valve for throttling a consumer return volume flow opens or closes in dependence on a consumer inflow pressure and comprises at least one main piston arranged in a bushing and at least two further pistons arranged in a lid separate from the bushing.

公开(公告)号：US09829014B2

公开(公告)日：2017-11-28

申请号：US14696869

申请日：2015-04-27

申请人： Caterpillar Inc.

发明人： Andrew J. Kleitsch ,  Pengfei Ma ,  Jason L. Brinkman ,  Mikhail Sorokin

IPC分类号： F15B11/16 ,  F15B11/00 ,  E02F9/22

CPC分类号： F15B11/165 ,  E02F9/2228 ,  F15B11/006 ,  F15B11/163 ,  F15B2211/20553 ,  F15B2211/20576 ,  F15B2211/30535 ,  F15B2211/30555 ,  F15B2211/30575 ,  F15B2211/61 ,  F15B2211/6313 ,  F15B2211/6316 ,  F15B2211/6346 ,  F15B2211/6355 ,  F15B2211/6652 ,  F15B2211/6654 ,  F15B2211/7142

摘要： An independent metering valve circuit includes an actuator, a set of independent metering valves, an independent metering valve pre-compensator, an inverse resolver, and a signal conditioning element. The set of independent metering valves are fluidly coupled to the actuator and configured to independently control a flow of a hydraulic fluid to the actuator. The independent metering valve pre-compensator is configured to control the flow of the hydraulic fluid to the set of independent metering valves. The inverse resolver is configured to receive a first pressure signal from the independent metering valve circuit and a second pressure signal from a load-sense hydraulic system and output a third pressure signal. The signal conditioning element is configured to receive the third pressure signal and output a forth pressure signal configured to control a pump fluidly coupled to the load-sense hydraulic system and the independent metering valve circuit.

公开(公告)号：US09739036B2

公开(公告)日：2017-08-22

申请号：US14651220

申请日：2013-11-20

申请人： HYUNDAI HEAVY INDUSTRIES CO., LTD.

发明人： Jong Chan Lee ,  Lim Gook Choi ,  Young Min Kwon ,  Jong Hyung Yim

IPC分类号： F15B15/00 ,  E02F9/20 ,  E02F9/22 ,  F15B11/00 ,  E02F3/42 ,  F15B11/16 ,  F15B13/08 ,  F15B21/02 ,  E02F3/43 ,  E02F9/26

CPC分类号： E02F9/2025 ,  E02F3/42 ,  E02F3/434 ,  E02F3/437 ,  E02F9/2004 ,  E02F9/2203 ,  E02F9/2228 ,  E02F9/2267 ,  E02F9/2289 ,  E02F9/2296 ,  E02F9/265 ,  F15B11/006 ,  F15B11/161 ,  F15B13/085 ,  F15B13/086 ,  F15B21/02 ,  F15B2211/20546 ,  F15B2211/30575 ,  F15B2211/327 ,  F15B2211/6346 ,  F15B2211/75

摘要： According to the present invention, a hydraulic system of construction equipment is implemented as a close center system, which converts an input signal of an electric or hydraulic joystick into a speed signal of a work apparatus, and controls a speed of the work apparatus regardless of an external load condition, thereby minimizing fatigue of a worker to improve work efficiency, improving a work apparatus operation ability of an unskilled person, and patterning standardized work to implement automation of construction equipment.

公开(公告)号：US09683587B2

公开(公告)日：2017-06-20

申请号：US14370958

申请日：2013-01-18

申请人： KAYABA INDUSTRY CO., LTD.

发明人： Tatsuo Ito ,  Mitsuhiro Maesaki

IPC分类号： F15B15/08 ,  F15B15/20 ,  F15B11/00

CPC分类号： F15B15/08 ,  F15B11/003 ,  F15B11/006 ,  F15B15/20 ,  F15B2211/30515 ,  F15B2211/30535 ,  F15B2211/30575 ,  F15B2211/329 ,  F15B2211/351 ,  F15B2211/353 ,  F15B2211/7052

摘要： A fluid pressure control device includes a first control valve that switches to supply a working fluid to the pressure chamber of a cylinder on which a load pressure by the load acts so as to control the extension operation of the cylinder, a second control valve that switches to discharge the working fluid in the pressure chamber so as to control the contraction operation of the cylinder, an operate check valve that is interposed between the pressure chamber and the second control valve and that interrupts the discharge of the working fluid from the pressure chamber when the operate check valve is switched to a closed state and a pilot valve that performs, with a pilot pressure, a pilot operation on the second control valve and that switches, with the pilot pressure, the operate check valve to an opened state.

公开(公告)号：US09372487B2

公开(公告)日：2016-06-21

申请号：US14640549

申请日：2015-03-06

申请人： Hoerbiger Automatisierungstechnik Holding GmbH

发明人： Daniel Haller ,  Max Schrobenhauser ,  Erich Rankl ,  Marcus Grodl

IPC分类号： F15B13/043 ,  G05D7/06 ,  F15B11/00 ,  F15B11/10 ,  F15B13/04 ,  F16K11/14

CPC分类号： G05D7/0676 ,  F15B11/006 ,  F15B11/10 ,  F15B13/0405 ,  F15B2211/30575 ,  F15B2211/31 ,  F15B2211/329 ,  F15B2211/565 ,  F15B2211/7052 ,  F15B2211/7656 ,  F16K11/14 ,  F16K11/16 ,  F16K31/006 ,  F16K31/423 ,  Y10T137/87201

摘要： The invention relates to a fluidic actuator comprising a drive element (2) that can be supplied with a pressure fluid and a two-stage proportional position controller (3) controlling the supply with pressure fluid to the drive element, said actuator comprising an electro-fluidic pilot stage (10) of the position controller, exactly one electromechanical transducer (14) and exactly one proportional valve (16) actuated by said transducer and having a pressure fluid inlet (18), a control pressure outlet (19) and a discharge outlet (20). A fluidic power stage (11) of the position controller comprises two poppet valves (24, 25) having associated pressure-to-distance converters that are supplied by a common control chamber (34) which is connected to the control pressure outlet (19) of the pre-stage (10).

摘要翻译： 本发明涉及一种流体致动器，其包括可供给压力流体的驱动元件（2）和控制向驱动元件施加压力流体的两级比例位置控制器（3），所述致动器包括电 - 位置控制器的流体先导级（10），正好一个机电换能器（14）和由所述换能器致动的正好一个比例阀（16），并具有压力流体入口（18），控制压力出口（19）和排放 出口（20）。 位置控制器的流体动力级（11）包括两个提升阀（24,25），该提升阀具有相连的压力 - 距离转换器，该转换器由连接到控制压力出口（19）的公共控制室（34）供应， 的前期（10）。

公开(公告)号：US20160061229A1

公开(公告)日：2016-03-03

申请号：US14468629

申请日：2014-08-26

申请人： UT-Battelle, LLC

发明人： Randall F. Lind ,  Lonnie J. Love

IPC分类号： F15B13/042 ,  F15B13/04

CPC分类号： F15B11/006 ,  F15B11/036 ,  F15B21/14 ,  F15B2211/30575 ,  F15B2211/625 ,  F15B2211/6336 ,  F15B2211/7055 ,  F15B2211/7107 ,  F15B2211/761 ,  F15B2211/88

摘要： Hydraulic actuation systems having concentric chambers, variable displacements and energy recovery capabilities include cylinders with pistons disposed inside of barrels. When operating in energy consuming modes, high speed valves pressurize extension chambers or retraction chambers to provide enough force to meet or counteract an opposite load force. When operating in energy recovery modes, high speed valves return a working fluid from extension chambers or retraction chambers, which are pressurized by a load, to an accumulator for later use.

摘要翻译： 具有同心室，可变排量和能量回收能力的液压致动系统包括设置在桶内的活塞的气缸。 当以能量消耗模式操作时，高速阀对扩展室或收回室加压，以提供足够的力来满足或抵消相反的载荷力。 当以能量回收模式操作时，高速阀将来自被负载加压的延伸室或回缩室的工作流体返回到蓄电池供以后使用。

公开(公告)号：US09206821B2

公开(公告)日：2015-12-08

申请号：US13320980

申请日：2010-05-11

申请人： Karl-Heinz Post ,  Robert Weber

发明人： Karl-Heinz Post ,  Michael N. Wheeler ,  Richard G. Wheeler, Sr. ,  Robert Weber

IPC分类号： F15B11/00 ,  F15B13/04 ,  F15B13/042 ,  F15B13/043

CPC分类号： F15B11/006 ,  F15B13/0405 ,  F15B13/0426 ,  F15B13/043 ,  F15B2211/20546 ,  F15B2211/30505 ,  F15B2211/30575 ,  F15B2211/7053 ,  Y10T137/8593

摘要： A hydraulic switching mechanism for the mobile hydraulics of, for example, hydraulic excavators, with a valve block, with electrohydraulically activatable valve units for controlling the movement of a working cylinder whose cylinder chambers can be selectively connected to a pump connection for hydraulic fluid, to a tank connection or to one another, and with pre-control valves for activating the valve units, wherein the hydraulic switching mechanism, by means of separate tank valve units and pump valve units, and also a suitable pre-control system, makes it possible to achieve a directional control valve function and a directly controlled and superimposed pre-controlled lowering braking function, a maximum pressure safeguarding of the cylinders and a proportional throttle valve function for the controlled displacement under negative load forces in the direction of movement and braking in an emergency; and mobile hydraulic machines having such a hydraulic switching mechanism and also to valve units therefor.

摘要翻译： 一种用于例如具有阀块的液压挖掘机的移动液压装置的液压切换机构，其具有用于控制其气缸室可选择性地连接到用于液压流体的泵连接的工作缸的运动的电液可激活阀单元， 罐连接或彼此连接，并具有用于启动阀单元的预控制阀，其中液压切换机构通过单独的油箱阀单元和泵阀单元以及合适的预控制系统使得可能 实现方向控制阀功能和直接控制和叠加的预控降低制动功能，对气缸的最大压力保护和用于在负载力下的受控位移的比例节气门功能在运动和制动方向上 紧急情况 以及具有这种液压切换机构的移动式液压机械及其阀单元。

公开(公告)号：US20150298730A1

公开(公告)日：2015-10-22

申请号：US14443389

申请日：2012-11-20

申请人： Roland Wiktor ,  Kim Heybroek

发明人： Roland Wiktor ,  Kim Heybroek

IPC分类号： B62D5/20 ,  F15B15/20 ,  E02F9/22 ,  F15B15/14

CPC分类号： B62D5/20 ,  B62D12/00 ,  E02F3/431 ,  E02F9/0841 ,  E02F9/2221 ,  E02F9/2228 ,  E02F9/225 ,  F15B11/006 ,  F15B11/036 ,  F15B15/1423 ,  F15B15/20 ,  F15B2211/30575 ,  F15B2211/3144 ,  F15B2211/365 ,  F15B2211/7055

摘要： A pressurized medium assembly includes a first working chamber and a second working chamber. The first and second working chambers are adapted to together produce a load. The pressurized medium assembly includes a first control arrangement adapted to provide a fluid communication between the first working chamber and a pressure line in an on/off manner. The pressurized medium assembly further includes a second control arrangement adapted to provide a fluid communication between the second working chamber and a pressure line. The second control arrangement is adapted to proportionally regulate the pressure in the second working chamber.

摘要翻译： 加压介质组件包括第一工作室和第二工作室。 第一和第二工作室适于一起产生负载。 加压介质组件包括适于以开/关方式在第一工作室和压力管线之间提供流体连通的第一控制装置。 加压介质组件还包括适于在第二工作室和压力管线之间提供流体连通的第二控制装置。 第二控制装置适于成比例地调节第二工作室中的压力。