公开(公告)号：US20180266415A1

公开(公告)日：2018-09-20

申请号：US15517356

申请日：2015-10-02

申请人： Project Phoenix, LLC

发明人： Thomas Afshari

IPC分类号： F04C11/00 ,  F15B7/00 ,  F04C2/18 ,  F15B15/18

CPC分类号： F04C11/008 ,  F04C2/18 ,  F04C2240/402 ,  F04C2270/03 ,  F04C2270/05 ,  F15B7/006 ,  F15B15/18 ,  F15B2211/20515 ,  F15B2211/20546 ,  F15B2211/20561 ,  F15B2211/20576 ,  F15B2211/3144 ,  F15B2211/31529 ,  F15B2211/31535 ,  F15B2211/327 ,  F15B2211/625 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/6343

摘要： A linear actuator system includes a linear actuator and at least one proportional control valve and at least one pump connected to the linear actuator to provide fluid to operate the linear actuator. The at least one pump includes at least one fluid driver having a prime mover and a fluid displacement assembly to be driven by the prime mover such that fluid is transferred from the pump inlet to the pump outlet. 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 and concurrently establishes an opening of the at least one proportional control valve to 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：US20180119712A1

公开(公告)日：2018-05-03

申请号：US15342528

申请日：2016-11-03

申请人： DEERE & COMPANY

发明人： SEAN A. MAIRET ,  Thomas J. Waller ,  Bryan Rausch ,  Daniel A. Griswold

IPC分类号： F15B13/04 ,  F15B11/08 ,  F15B19/00 ,  E02F9/20

CPC分类号： E02F9/2025 ,  E02F9/2296 ,  F15B21/087 ,  F15B2211/20546 ,  F15B2211/327 ,  F15B2211/6346 ,  F15B2211/6654

摘要： An auxiliary flow adjustment system and method are disclosed for controlling an auxiliary hydraulic function on a machine in accordance with commands from an operator. The auxiliary flow adjustment system includes operator controls that control a hydraulic control valve. The control valve controls flow rate and flow direction to the auxiliary hydraulic function. When the auxiliary flow adjustment system is activated, the operator can use the operator controls to select a desired flow rate and flow direction for the auxiliary function and maintain the desired flow rate and direction without further use of the operator controls. When the flow adjustment system is activated while a non-zero flow rate is selected, the desired flow rate and direction can be set to the current settings. A resume control can retrieve and command the previously stored desired flow rate and direction. Controls can be used to increase and decrease the set flow rate.

公开(公告)号：US09932996B2

公开(公告)日：2018-04-03

申请号：US14971235

申请日：2015-12-16

申请人： DEERE & COMPANY

发明人： Michael R. Gratton ,  Aaron R. Kenkel

IPC分类号： F15B13/04 ,  F15B13/044 ,  F15B11/08 ,  E02F9/22 ,  E02F3/42 ,  E02F3/28

CPC分类号： F15B13/044 ,  E02F3/283 ,  E02F3/422 ,  E02F9/2228 ,  F15B11/08 ,  F15B13/0401 ,  F15B2211/30525 ,  F15B2211/3111 ,  F15B2211/327 ,  F15B2211/426 ,  F15B2211/6309 ,  F15B2211/6313 ,  F15B2211/6336 ,  F15B2211/6346 ,  F15B2211/665 ,  F15B2211/853

摘要： An electrohydraulic implement pressure cutoff system is disclosed that includes a pump, one or more hydraulic functions, at least one valve, sensors and control unit. The pump powers the functions, and the valves control flow between the pump and their associated function. The sensor readings indicate system parameters. The control unit receives the readings and controls the valves. When the readings indicate a function is at or beyond a threshold, the control unit closes the associated valve to prevent flow to or from that function. The sensors can be pressure, position or other types of sensors. Operator control signals can be provided to control the functions. When the readings indicate a function is at or beyond a threshold in a stalled direction and the operator signals keep commanding the function in the stalled direction, the control unit can close the associated valve regardless of the operator signals.

公开(公告)号：US20180017087A1

公开(公告)日：2018-01-18

申请号：US15548841

申请日：2016-02-04

申请人： Caterpillar SARL

发明人： Hideki Nakajima ,  Shuhei Orimoto ,  Naoki Kuroda

IPC分类号： F15B11/10 ,  F15B21/14 ,  E02F9/22

CPC分类号： F15B11/10 ,  E02F9/2225 ,  E02F9/2228 ,  E02F9/2267 ,  F15B11/024 ,  F15B11/042 ,  F15B11/044 ,  F15B21/14 ,  F15B2211/30535 ,  F15B2211/3058 ,  F15B2211/327 ,  F15B2211/351 ,  F15B2211/353 ,  F15B2211/41509 ,  F15B2211/41563 ,  F15B2211/426 ,  F15B2211/455 ,  F15B2211/46 ,  F15B2211/465 ,  F15B2211/56 ,  F15B2211/6313 ,  F15B2211/6336 ,  F15B2211/6654 ,  F15B2211/7053

摘要： To reduce the cost by reducing the number of parts and simplify the control of regeneration in the hydraulic actuator even though the meter-in control and the meter-out control can be performed separately while the supply and the discharge of hydraulic fluid is controlled. A meter-in valve that controls supply flow from a hydraulic pump into a hydraulic cylinder is provided, and meter-out switching valve that switches the direction of supply and discharge of the hydraulic oil into the hydraulic cylinder and controls the discharge flow from the hydraulic cylinder to the oil tank is installed on the down stream side of the meter-in valve, and further, a regeneration control valve is installed on the down stream side of the meter-out switching valve.

公开(公告)号：US20170284388A1

公开(公告)日：2017-10-05

申请号：US15507964

申请日：2015-09-30

申请人： Artemis Intelligent Power Limited

发明人： Niall James CALDWELL ,  Jeremy EDMONDSON ,  Alasdair Ian Fletcher ROBERTSON ,  Uwe Bernhard Pascal STEIN

IPC分类号： F04B49/22 ,  F15B7/00 ,  F04B1/06 ,  F15B21/14

CPC分类号： F04B49/22 ,  F03C1/26 ,  F04B1/06 ,  F04B1/063 ,  F04B49/225 ,  F15B7/00 ,  F15B7/006 ,  F15B11/0426 ,  F15B21/14 ,  F15B2211/2053 ,  F15B2211/20569 ,  F15B2211/20576 ,  F15B2211/212 ,  F15B2211/214 ,  F15B2211/27 ,  F15B2211/30505 ,  F15B2211/327 ,  F15B2211/633 ,  F15B2211/6651 ,  F15B2211/6654 ,  F15B2211/7052 ,  F15B2211/7053 ,  Y02P80/13

摘要： An injection moulding system, water jet cutting machine or other industrial system has a synthetically controlled variable displacement fluid working machine which outputs hydraulic fluid to one or more fluid consumers, such as rams or hydraulic motors, through hydraulically stiff fluid retaining volumes and receives hydraulic fluid back from one or more fluid consumers through the same or other said hydraulically stiff fluid retaining volumes. Individual piston cylinder assemblies can be allocated to different outputs. There may be no valve between the machine and the consumers. A working chamber of the machine can be caused to undergo a motoring cycle to enable the machine to output more power than is received from a motor driving the machine. An accumulator can be used to provide a source of hydraulic compliance. The machine can be controlled using pressure control, flow control, feed forward control or variable power/variable power limit control.

公开(公告)号：US20170262001A1

公开(公告)日：2017-09-14

申请号：US15453729

申请日：2017-03-08

申请人： HUSCO INTERNATIONAL, INC.

发明人： Joseph L Pfaff

IPC分类号： G05D16/20 ,  F16K31/06 ,  F16K11/07 ,  F16K37/00

CPC分类号： G05D16/2026 ,  F15B19/002 ,  F15B2211/20546 ,  F15B2211/3111 ,  F15B2211/327 ,  F15B2211/45 ,  F15B2211/6309 ,  F16K37/005 ,  G01F25/00

摘要： Systems and methods for calibration of an electrohydraulic control valve are provided. In one aspect, a method for calibrating an electrohydraulic control valve includes providing fluid communication between the pump and the reservoir through a bypass calibration orifice. The bypass calibration orifice defines a known restriction. The method further includes measuring a pressure drop across the bypass calibration orifice, commanding the electrohydraulic control valve, calculating a pressure drop across the electrohydraulic control valve, recording the command applied to the electrohydraulic control valve corresponding with the calculated pressure drop across the electrohydraulic control valve, and calibrating the electrohydraulic control valve based on at least two of the recorded command, the known restriction, the measured pressure drop across the bypass calibration orifice, and the calculated pressure drop across the electrohydraulic control valve.

公开(公告)号：US09732878B2

公开(公告)日：2017-08-15

申请号：US14992274

申请日：2016-01-11

申请人： Hassan Abdullah Ahmad Alkandari

发明人： Hassan Abdullah Ahmad Alkandari

IPC分类号： G01L27/00 ,  G01M3/02 ,  F16K37/00

CPC分类号： F16K37/00 ,  F15B1/00 ,  F15B19/00 ,  F15B2211/30565 ,  F15B2211/31558 ,  F15B2211/31576 ,  F15B2211/327 ,  F15B2211/6336 ,  F15B2211/7052 ,  F15B2211/855 ,  F15B2211/8855 ,  F16K37/0083

摘要： An emergency shut-off valve and means for initiating a test on said emergency shut-off valve includes a source of pressurized gas, a main solenoid responsive to a signal from said means for initiating a test and a source of pressurized gas are included. Further, means including a main solenoid responsive to a signal from said means for initiating a test and a main solenoid valve and a quick exhaust valve connected to the source of pressurized gas. Further, a pneumatic actuator for opening and closing the shut-off valve and test means for testing the emergency shut-off valve without fully closing the emergency shut-off valve in response to a signal from the means for initiating a test. The test means includes a second solenoid.

公开(公告)号：US20170058922A1

公开(公告)日：2017-03-02

申请号：US14841677

申请日：2015-08-31

申请人： Deere & Company

发明人： Aaron R. Kenkel ,  Ann M. Lazare

IPC分类号： F15B21/04 ,  F15B11/17 ,  F15B15/28 ,  F15B21/00

CPC分类号： F15B21/042 ,  F15B11/17 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/327 ,  F15B2211/6343 ,  F15B2211/6346 ,  F15B2211/66 ,  F15B2211/6652 ,  F15B2211/6654

摘要： In accordance with an example embodiment, a system for managing a unique hydraulic system warmup method is described. A warmup system controller is central to the system and provides an interfacing point for communication to hardware components and a machine operator. The warmup system issues commands based on sensor inputs in light of defined rules and/or known physical properties of hydraulic fluids. Hydraulic system warmup is managed by the warmup system controller, which is configured to issue commands to affect hydraulic pumps and valves. By way of a controller managed process, the system functions to maximize hydraulic system pressure and limiting release of pressures in the lines, such that the pumps are able to maintain maximum pressure for a sufficient period of time.

摘要翻译： 根据示例性实施例，描述了一种用于管理独特的液压系统预热方法的系统。 暖机系统控制器是系统的核心，并提供与硬件组件和机器操作员通信的接口点。 预热系统根据定义的规则和/或液压油的已知物理特性，基于传感器输入发出命令。 液压系统预热由预热系统控制器管理，预热系统控制器配置为发出影响液压泵和阀门的命令。 通过控制器管理的过程，该系统用于最大限度地提高液压系统压力并限制管路中的压力释放，使得泵能够在足够的时间段内保持最大压力。

公开(公告)号：US20170016208A1

公开(公告)日：2017-01-19

申请号：US15124554

申请日：2015-03-10

申请人： Hitachi Construction Machinery Co., Ltd.

发明人： Teppei SAITOH ,  Yuki AKIYAMA ,  Kenji HIRAKU ,  Hiromasa TAKAHASHI ,  Juri SHIMIZU

IPC分类号： E02F9/22 ,  F15B13/08 ,  F15B13/02 ,  E02F9/12 ,  F15B11/17

CPC分类号： E02F9/2217 ,  E02F3/32 ,  E02F9/123 ,  E02F9/2239 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/17 ,  F15B13/024 ,  F15B13/08 ,  F15B21/14 ,  F15B2211/20546 ,  F15B2211/20561 ,  F15B2211/20569 ,  F15B2211/20576 ,  F15B2211/27 ,  F15B2211/30595 ,  F15B2211/31529 ,  F15B2211/327 ,  F15B2211/613 ,  F15B2211/6309 ,  F15B2211/6346 ,  F15B2211/6652 ,  F15B2211/7058 ,  F15B2211/7135 ,  F15B2211/7142 ,  F15B2211/761 ,  F15B2211/853

摘要： To provide a work machine capable of efficiently regenerating the energy owned by hydraulic fluid during a swing deceleration. In the present invention, when a swing deceleration detection section 57a detects the state of a revolving upperstructure 102 being decelerated, when an operation judgment section 57c judges the state that a double-tilting pump/motor 14 is not supplying hydraulic fluid to any of a boom cylinder 1 and an arm cylinder 3, and when the number of double-tilting pumps/motors 14, 18 having supplied hydraulic fluid to a swing hydraulic motor 7 in the state before the swing deceleration detection section 57a detects the state of the revolving upperstructure 102 being decelerated is equal to one or more, a pump valve control section 57d controls changeover valves 43a, 45b, 45d, 49d to open and increases the displacements of the double-tilting pumps/motors 14, 18 to the side to make suction pressures become higher than discharge pressures of the double-tilting pumps/motors 14, 18 so that the double-tilting pumps/motors 14, 18 operate as motors.

摘要翻译： 提供能够在摆动减速期间有效再生由液压流体所拥有的能量的作业机械。 在本发明中，当回转减速度检测部57a检测到旋转的上部结构102的状态正在减速时，当操作判断部57c判断双重倾斜泵/电动机14不向液压流体供给时 动臂缸1和斗杆缸3，并且当在摆动减速度检测部分57a之前的状态下向摆动液压马达7供应液压流体的双倾斜泵/马达14,18的数量检测到旋转上部结构的状态 102被减速等于一个以上，泵阀控制部57d控制切换阀43a，45b，45d，49d打开并将双倾斜泵/马达14,18的位移增加到一侧以使吸入压力 变得高于双倾斜泵/马达14,18的排出压力，使得双倾斜泵/马达14,18作为马达运转。

公开(公告)号：US20160289926A1

公开(公告)日：2016-10-06

申请号：US14675011

申请日：2015-03-31

申请人： Caterpillar Inc.

发明人： Jeffrey S. Alig ,  Conrad G. Grembowicz ,  Bradley Bomer ,  Jeffrey Fletcher ,  Karl Kirsch ,  Zhijun Cai

IPC分类号： E02F9/22 ,  F15B13/04 ,  E02F3/42 ,  F15B15/14 ,  E02F3/43 ,  E02F9/20

CPC分类号： E02F9/2228 ,  E02F3/422 ,  E02F3/431 ,  E02F9/2004 ,  E02F9/2012 ,  F15B13/0401 ,  F15B15/14 ,  F15B19/007 ,  F15B2211/327 ,  F15B2211/351 ,  F15B2211/665 ,  F15B2211/6654 ,  F15B2211/6658 ,  F15B2211/75 ,  F15B2211/8643

摘要： A hydraulic system for a machine is provided including a first cylinder, a pump and an operator input device for entering a commanded rate of flow of hydraulic fluid to the first cylinder. A control valve operatively is connected between the pump and the first cylinder. A sensor is configured and arranged to provide signals relating to a first operating characteristic of the machine. A controller is in communication with the operator input device, the control valve and the sensor. The controller is configured to determine a skill level of an operator of the machine based on a comparison of the first operating characteristic of the machine and a first threshold and to direct the control valve to provide hydraulic fluid to the first cylinder at an adjusted hydraulic fluid flow rate if the skill level of the operator is below a predetermined level.

摘要翻译： 提供了一种用于机器的液压系统，包括第一气缸，泵和操作者输入装置，用于将液压流体的指令流量输入到第一气缸。 控制阀可操作地连接在泵和第一气缸之间。 传感器被配置和布置成提供与机器的第一操作特性有关的信号。 控制器与操作员输入装置，控制阀和传感器通信。 控制器被配置为基于机器的第一操作特性与第一阈值的比较来确定机器的操作者的技能水平，并且引导控制阀以在调节的液压流体下向第一气缸提供液压流体 如果操作者的技能水平低于预定水平，则流量。