公开(公告)号：US3744375A

公开(公告)日：1973-07-10

申请号：US3744375D

申请日：1971-08-09

申请人： KUBIK P

发明人： KUBIK P

IPC分类号： F15B1/02 ,  F15B11/036 ,  F15B11/046 ,  F01B31/00 ,  F15B11/00

CPC分类号： F15B1/02 ,  F15B11/036 ,  F15B11/046 ,  F15B2211/20553 ,  F15B2211/30505 ,  F15B2211/30515 ,  F15B2211/30525 ,  F15B2211/329 ,  F15B2211/355 ,  F15B2211/50518 ,  F15B2211/50527 ,  F15B2211/5154 ,  F15B2211/613 ,  F15B2211/615 ,  F15B2211/6336 ,  F15B2211/6355 ,  F15B2211/7053 ,  F15B2211/7055

摘要： A fluid system having a variable displacement fluid pump connected in a closed loop circuit to a fluid cylinder having a tubular member and a piston reciprocally mounted therein. The piston has a connecting rod extending from one side thereof and externally of the fluid cylinder. A second piston, fixedly attached to the tubular member, is reciprocally mounted within a blind bore in the connecting rod, with the outer face of the second piston and the blind end of the connecting rod defining an expansible pressure chamber. The effective pressure responsive areas of the two pistons are equal, such that when fluid at a selected rate of flow and at a predetermined pressure is communicated to the annular area on the rod side of the first piston, a force of a predetermined magnitude is generated against the piston to cause a contraction of the fluid cylinder at a predetermined rate, and when fluid at the same rate of flow and at the same predetermined pressure is communicated to the expansible chamber, a force of the same predetermined magnitude is generated between the second piston and the blind end of the connecting rod to cause an expansion of the fluid cylinder at the same predetermined rate as when the fluid cylinder is contracted. A directional control valve, disposed in the closed circuit between the inlet and outlet of the fluid pump, is adapted to selectively direct fluid to the rod side of the first piston within the fluid cylinder, while exhausting fluid from the expansible chamber and vice versa, so as to selectively expand and contract the fluid cylinder at the same rate. The rate of movement of expansion and contraction is controlled by the amount of fluid displaced by the fluid pump. A second directional control valve is adapted to direct fluid from a second source of fluid to a pressure responsive displacement control mechanism to selectively vary the displacement of the fuid pump. The rate of fluid flow to the pressure responsive displacement control mechanism is selectively varied to control the rate of displacement of the fluid pump and to thereby selectively control the rate of expansion and contraction of the fluid cylinder. When the side of the first piston opposite the rod carrying side thereof is communicated to a fluid under pressure, an additional expansion force may be selectively provided.

公开(公告)号：US3653208A

公开(公告)日：1972-04-04

申请号：US3653208D

申请日：1970-06-26

申请人： PHILIP A KUBIK

发明人： KUBIK PHILIP A

IPC分类号： F15B1/02 ,  F15B11/036 ,  F15B11/046 ,  F15B15/18

CPC分类号： F15B11/036 ,  F15B1/02 ,  F15B11/046 ,  F15B2211/20553 ,  F15B2211/30505 ,  F15B2211/30525 ,  F15B2211/329 ,  F15B2211/355 ,  F15B2211/50527 ,  F15B2211/5154 ,  F15B2211/613 ,  F15B2211/615 ,  F15B2211/6336 ,  F15B2211/6355 ,  F15B2211/7053

摘要： A fluid system having a variable displacement fluid pump connected in a closed loop circuit to a fluid cylinder having a piston and a pair of connecting rods extending from opposite sides of the piston externally of the fluid cylinder. A directional control valve disposed in the closed circuit between the inlet and outlet of the fluid pump is adapted to selectively direct fluid to one side of the piston within the fluid cylinder, while exhausting fluid from the other side of the piston, so as to selectively move the piston within the fluid cylinder. The rate of movement of the piston in either direction of movement is controlled by the amount of fluid displaced by the fluid pump. A second directional control valve is adapted to direct fluid from a second source of fluid to a pressure responsive displacement control mechanism to selectively vary the displacement of the fluid pump. The rate of fluid flow to the pressure responsive displacement control mechanism is selectively varied to control the rate of displacement of the fluid pump and to thereby selectively control the rate of movement of the cylinder piston.

摘要翻译： 一种具有可变排量流体泵的流体系统，该可变排量流体泵连接在具有活塞的流体缸的闭环回路中，以及从流体缸的外部的活塞的相对侧延伸的一对连接杆。 设置在流体泵的入口和出口之间的闭合回路中的方向控制阀适于选择性地将流体引导到流体缸内的活塞的一侧，同时从活塞的另一侧排出流体，以便选择性地 将活塞移动到液压缸内。 活塞在两个运动方向的移动速度由流体泵移动的流体的量来控制。

公开(公告)号：US12117024B2

公开(公告)日：2024-10-15

申请号：US16500667

申请日：2018-05-31

申请人： ClearMotion, Inc.

发明人： Clive Tucker ,  Joseph Thomas Belter

IPC分类号： F15B13/02 ,  B60G17/044 ,  F15B7/00

CPC分类号： F15B13/027 ,  B60G17/044 ,  F15B7/006 ,  F15B2211/20561 ,  F15B2211/27 ,  F15B2211/3051 ,  F15B2211/3058 ,  F15B2211/50527 ,  F15B2211/625 ,  F15B2211/7053

摘要： Disclosed herein are various embodiments of a hydraulic actuator that includes one or more check valves having a dynamically varying cracking pressure. In certain embodiments, a hydraulic actuator may be configured to vary the cracking pressure of a check valve based on an operating condition of a pump of the hydraulic actuator. The check valve may be located along a bypass path in the hydraulic actuator, thereby allowing for fluid flow to bypass a pump of the hydraulic actuator by passing through the check valve. The use of such hydraulic actuators is contemplated in, for example, an active suspension system of a vehicle. Additionally, various embodiments of suitable check valves are disclosed. Additionally, methods are disclosed for operation of the check valve and the hydraulic actuator.

公开(公告)号：US09528245B2

公开(公告)日：2016-12-27

申请号：US14132704

申请日：2013-12-18

申请人： Kobelco Construction Machinery Co., Ltd.

发明人： Naoki Goto ,  Koji Ueda ,  Yusuke Kamimura

IPC分类号： F16D31/02 ,  E02F9/12 ,  E02F9/22 ,  F15B11/048

CPC分类号： E02F9/123 ,  E02F9/2235 ,  E02F9/2285 ,  E02F9/2296 ,  F15B11/048 ,  F15B2211/20546 ,  F15B2211/50527 ,  F15B2211/50536 ,  F15B2211/6336 ,  F15B2211/6346 ,  F15B2211/665 ,  F15B2211/7058 ,  F15B2211/755 ,  F15B2211/761 ,  F15B2211/77 ,  F15B2211/85 ,  F15B2211/88

摘要： The invention provides a rotation control device capable of reducing a loss of a power of a hydraulic pump in a backward direction operation and also provides a construction machine including the same. The controller controls a capacity of the hydraulic pump such that, in a forward direction operation in which an operating direction detected by the operation sensor and a rotating direction detected by a rotation sensor coincide with each other, the capacity of the hydraulic pump is increased in accordance with an increase in the operation amount detected by an operation sensor, on the other hand, restricts the capacity of the hydraulic pump more in a backward direction operation, in which the operating direction detected by the operation sensor and the rotating direction detected by the rotation sensor are reverse to each other, than in the forward direction operation.

摘要翻译： 本发明提供一种旋转控制装置，其能够减少液压泵在向后方向动作中的动力损失，并且还提供包括该旋转控制装置的施工机械。 控制器控制液压泵的容量，使得在由操作传感器检测的操作方向和由旋转传感器检测的旋转方向彼此一致的向前方向操作中，液压泵的容量增加 根据操作传感器检测到的操作量的增加，另一方面，在由操作传感器检测到的操作方向和由该操作传感器检测到的旋转方向的后向操作中更多地限制液压泵的容量 旋转传感器相对于向前方向操作相反。

公开(公告)号：US09096115B2

公开(公告)日：2015-08-04

申请号：US13298990

申请日：2011-11-17

申请人： Aaron Yun-Ren Ho ,  Aristoteles RosaNeto

发明人： Aaron Yun-Ren Ho ,  Aristoteles RosaNeto

IPC分类号： F16D31/02 ,  B60K6/12 ,  F15B1/02 ,  F15B7/00 ,  F15B21/14 ,  E02F9/20 ,  E02F9/22 ,  F16H61/4096

CPC分类号： B60K6/12 ,  E02F9/2075 ,  E02F9/2217 ,  E02F9/2253 ,  E02F9/2289 ,  E02F9/2292 ,  E02F9/2296 ,  F15B1/024 ,  F15B7/006 ,  F15B21/14 ,  F15B2211/20546 ,  F15B2211/20561 ,  F15B2211/20569 ,  F15B2211/212 ,  F15B2211/27 ,  F15B2211/50527 ,  F15B2211/88 ,  F16H61/4096 ,  Y02T10/6208

摘要： An energy transfer system includes a power transfer mechanism, a first system, and a second system. The first system includes a first pump-motor operatively connecting the first system to the power transfer mechanism and a regenerative system operatively connected to the first pump-motor. The second system is operatively connected to the power transfer mechanism. Power is transferred between systems by the power transfer mechanism. A method of energy transfer is also provided.

摘要翻译： 能量传递系统包括动力传递机构，第一系统和第二系统。 第一系统包括可操作地将第一系统连接到动力传递机构的第一泵马达和可操作地连接到第一泵马达的再生系统。 第二系统可操作地连接到动力传递机构。 电力传输机构在系统之间传输电力。 还提供了能量转移的方法。

公开(公告)号：US08944103B2

公开(公告)日：2015-02-03

申请号：US13222895

申请日：2011-08-31

申请人： Patrick Opdenbosch ,  Michael L. Knussman ,  Joshua Dierking

发明人： Patrick Opdenbosch ,  Michael L. Knussman ,  Joshua Dierking

IPC分类号： F15B13/043 ,  F15B7/00 ,  E02F9/22

CPC分类号： F15B7/006 ,  E02F9/2217 ,  E02F9/2235 ,  E02F9/2267 ,  E02F9/2289 ,  E02F9/2296 ,  F15B2211/20523 ,  F15B2211/20553 ,  F15B2211/20561 ,  F15B2211/20569 ,  F15B2211/27 ,  F15B2211/30515 ,  F15B2211/50527 ,  F15B2211/613 ,  F15B2211/7053 ,  Y02P80/13 ,  Y10T137/85978 ,  Y10T137/86614 ,  Y10T137/8663 ,  Y10T137/87193 ,  Y10T137/87209 ,  Y10T137/87249

摘要： A hydraulic system is disclosed. The hydraulic system may have a pump, a tank, a displacement actuator having first and second chambers, a regeneration valve, and a load-holding valve. The hydraulic system may also have a displacement control valve including a valve element, and a stationary cage portion at least partially forming a high-pressure passage fluidly connecting the pump and valve element, a low-pressure passage fluidly connecting the valve element and tank, a first displacement actuator passage fluidly connecting the valve element and first chamber, a second displacement actuator passage fluidly connecting the valve element and second chamber, a load-holding control passage fluidly connecting the valve element and load-holding valve, and a regeneration control passage fluidly connecting the valve element and regeneration valve. The displacement control valve may also include a movable cage portion that is movable to selectively restrict fluid flow through only the first and second displacement actuator passages.

摘要翻译： 公开了一种液压系统。 液压系统可以具有泵，罐，具有第一和第二室的排量致动器，再生阀和负载保持阀。 液压系统还可以具有包括阀元件的位移控制阀和至少部分地形成流体连接泵和阀元件的高压通道的静止保持架部分，流体连接阀元件和油箱的低压通道， 流体连接阀元件和第一室的第一排量致动器通道，流体连接阀元件和第二室的第二排量致动器通道，流体连接阀元件和负载保持阀的负载保持控制通路，再生控制通道 流体连接阀元件和再生阀。 排量控制阀还可以包括可移动的保持架部分，其可移动以选择性地限制流体流过仅第一和第二排量致动器通道。

公开(公告)号：US20140331664A1

公开(公告)日：2014-11-13

申请号：US14339031

申请日：2014-07-23

申请人： KOBELCO CONSTRUCTION MACHINERY CO., LTD.

发明人： Yusuke KAMIMURA

IPC分类号： E02F9/12 ,  F15B13/02 ,  F15B9/14 ,  F15B21/08

CPC分类号： E02F9/123 ,  E02F9/2228 ,  E02F9/2285 ,  F15B9/14 ,  F15B11/024 ,  F15B13/024 ,  F15B21/082 ,  F15B21/087 ,  F15B21/14 ,  F15B2011/0243 ,  F15B2211/3116 ,  F15B2211/50527 ,  F15B2211/6313 ,  F15B2211/6316 ,  F15B2211/6336 ,  F15B2211/7058 ,  F15B2211/88

摘要： Provided is a slewing-type working machine capable of reducing back pressure generated during slewing. The slewing-type working machine includes: a base carrier; an upper slewing body; a hydraulic motor 11 including first and second ports 11a and 11b and slewing the upper slewing body; a hydraulic pump 10, a slewing operation device 12 including an operating member 12a; a control valve 13 controlling the hydraulic motor 11 based on the operation signal of the slewing operation device 12; first and second pipe-lines 14, 15 connecting the first and second ports 11a and 11b of the hydraulic motor 11 to the control valve; a communication switching device 25 and 26 capable of switching communication and cutting of between both pipe-lines 14, 15 and the tank T; and a switching command section 27 operating the communication switching devices 25 and 26, when the upper slewing body is slewed, to bring only a pipe-line, which corresponds to a discharge-side pipe-line of the hydraulic motor 11, of the pipe-lines 14 and 15 into communication with the tank T, while bypassing the control valve 13.

摘要翻译： 提供了能够减少回转时产生的背压的回转式作业机。 回转式工作机包括：基座; 上部回转体; 包括第一和第二端口11a和11b并回转上部回转体的液压马达11; 液压泵10，包括操作构件12a的回转操作装置12; 基于回转运转装置12的运转信号控制液压马达11的控制阀13; 将液压马达11的第一和第二端口11a和11b连接到控制阀的第一和第二管道14,15; 能够切换管路14,15与箱体T的通信切断的通信切换装置25,26。 以及操作通信切换装置25,26的切换命令部27，当上部回转体旋转时，仅使与液压马达11的排出侧管线对应的管路成为管 - 线14和15与储罐T连通，同时绕过控制阀13。

公开(公告)号：US08793023B2

公开(公告)日：2014-07-29

申请号：US13062305

申请日：2009-09-11

申请人： Dale Vanderlaan ,  Ralf Gomm ,  Amir Shenouda

发明人： Dale Vanderlaan ,  Ralf Gomm ,  Amir Shenouda

IPC分类号： G05D7/06

CPC分类号： F15B21/087 ,  E02F9/207 ,  E02F9/2228 ,  F15B2211/20515 ,  F15B2211/20538 ,  F15B2211/20561 ,  F15B2211/26 ,  F15B2211/27 ,  F15B2211/3058 ,  F15B2211/50527 ,  F15B2211/613 ,  F15B2211/6313

摘要： A method of controlling an electro-hydraulic actuator system having multiple functions includes the steps of: receiving input signals corresponding to a desired operation of the functions of the system; establishing an operating limit for the system; determining an operating characteristic of the system; using the operating limit and the determined operating characteristic to determine a limitation control factor; and influencing the received input signal with the determined limitation control factor for operating the system within the established operating limit.

摘要翻译： 一种控制具有多种功能的电动液压致动器系统的方法包括以下步骤：接收对应于所述系统的功能的期望操作的输入信号; 建立系统的运行限制; 确定系统的操作特性; 使用操作限制和确定的操作特性来确定限制控制因素; 并用确定的限制控制因素影响所接收的输入信号，以在所建立的运行极限内操作系统。

公开(公告)号：US20140044514A1

公开(公告)日：2014-02-13

申请号：US14008207

申请日：2012-04-19

申请人： Yusuke Kamimura

发明人： Yusuke Kamimura

IPC分类号： E02F9/12

CPC分类号： E02F9/123 ,  E02F9/2228 ,  E02F9/2285 ,  F15B9/14 ,  F15B11/024 ,  F15B13/024 ,  F15B21/082 ,  F15B21/087 ,  F15B21/14 ,  F15B2011/0243 ,  F15B2211/3116 ,  F15B2211/50527 ,  F15B2211/6313 ,  F15B2211/6316 ,  F15B2211/6336 ,  F15B2211/7058 ,  F15B2211/88

摘要： A slewing-type working machine capable of reducing back pressure generated during slewing. The slewing-type working machine includes: a base carrier; an upper slewing body; a hydraulic motor including first and second ports and slewing the upper slewing body; a hydraulic pump, a slewing operation device including an operating member; a control valve controlling the hydraulic motor based on the operation signal of the slewing operation device; first and second pipe-lines connecting the first and second ports of the hydraulic motor to the control valve; a communication switching device capable of switching communication and cutting of between both pipe-lines and the tank; and a switching command section operating the communication switching devices, when the upper slewing body is slewed, to bring only a pipe-line, which corresponds to a discharge-side pipe-line of the hydraulic motor, of the pipe-lines into communication with the tank, while bypassing the control valve.

摘要翻译： 一种能够减少回转时产生的背压的回转式作业机。 回转式工作机包括：基座; 上部回转体; 液压马达，其包括第一和第二端口和回转所述上部回转体; 液压泵，包括操作构件的回转操作装置; 基于所述回转运转装置的运转信号控制所述液压马达的控制阀; 将液压马达的第一和第二端口连接到控制阀的第一和第二管路; 一种能够切换两条管线和罐体之间的通信和切断的通信切换装置; 以及切换命令部，其操作所述通信切换装置，当所述上部回转体被转动时，仅将与所述液压马达的排出侧管线对应的管路与管路连通， 同时绕过控制阀。

公开(公告)号：US08511490B2

公开(公告)日：2013-08-20

申请号：US12759122

申请日：2010-04-13

申请人： Hiroaki Kawai ,  Akira Tsutsui ,  Koichi Shimomura

发明人： Hiroaki Kawai ,  Akira Tsutsui ,  Koichi Shimomura

IPC分类号： B66C23/08

CPC分类号： B66C23/94 ,  B66C23/86 ,  E02F9/123 ,  F15B2211/3116 ,  F15B2211/50527 ,  F15B2211/6316 ,  F15B2211/6336 ,  F15B2211/6346 ,  F16H61/4157

摘要： A slewing stop control apparatus and method, capable of executing, while performing the control of determining the target slewing velocity based on a remaining slewing angle from the actual slewing motion position up to the slewing stop angular position, an automatic control of re-slewing the slewing structure having been stopped before the slewing stop angular position. The apparatus executes slewing angular velocity control for deciding the slewing braking start timing to stop the stewing structure at a slewing stop angular position in accordance with a predetermined slewing deceleration and the subsequent target slewing angular velocity, based on the remaining slewing angle of the slewing structure. When the slewing structure stops before the slewing stop angular position due to disturbance despite the foregoing control, the target slewing angular velocity is corrected to be increased for generating slewing torque to restart the slewing.

摘要翻译： 一种回转停止控制​​装置和方法，能够在执行基于从实际回转运动位置到回转停止角位置的剩余回转角度来确定目标回转速度的控制的同时执行重新回转 在回转停止角位置之前已经停止了回转结构。 该装置执行回转角速度控制，用于基于回转结构的剩余回转角度，根据预定的回转减速度和随后的目标回转角速度来决定回转制动开始正时以停止回转止动角位置处的炖结构 。 当尽管进行上述控制，由于扰动而在回转停止角位置之前停止旋转结构时，校正目标回转角速度以增加以产生回转转矩以重新开始回转。