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111. 发明公开

EP3358198A1 SPOOL VALVE DEVICE 审中-公开
公开(公告)号：EP3358198A1
公开(公告)日：2018-08-08
申请号：EP16850824.0
申请日：2016-07-15
申请人： KYB Corporation
发明人： MATSUURA, Akio
IPC分类号： F15B11/024 , F16K3/26 , F16K11/07
CPC分类号： F16K3/26 , F15B11/024 , F15B13/027 , F15B13/0402 , F16K11/07
摘要： a spool valve device includes a valve body (B), an actuator port (34, 35), a spool (37), a supply passage (33), and a regeneration flow passage (45) formed in the spool (37). An inflow port (46) of the regeneration flow passage (45) always communicates with the actuator port (35), when the spool (37) is placed at a regeneration switching position where a predetermined moving amount from a neutral position is ensured, the outflow port (47) of the regeneration flow passage (45) communicates with the actuator port (34) through the supply passage (33), and when the spool (37) is placed at a position other than the regeneration switching position, the communication between the outflow port (47) and the actuator port (34) is blocked.

112. 发明公开

EP3329168A1 VERTEILVORRICHTUNG 有权
公开(公告)号：EP3329168A1
公开(公告)日：2018-06-06
申请号：EP16733292.3
申请日：2016-06-17
申请人： Hydac Accessories GmbH
发明人： EBERHARD, Ralph
IPC分类号： F16L39/06 , B23Q11/10 , F16L41/03 , F16K27/00 , F15B13/00
CPC分类号： F16L39/06 , B23Q11/10 , F15B13/027 , F15B13/0817 , F15B13/0821 , F15B13/0871 , F16K11/22 , F16K11/24 , F16K27/003 , F16K31/0651 , F16L41/03
摘要： A distribution device for at least one fluid that can be conducted in a fluid duct (35) via at least two distribution units (3, 4, 5) is characterized in that at least two of the distribution units (3, 5, 6) that are adjacent to each other jointly delimit a common interface (33) of the fluid duct (35) and in that at least one functional element (11, 61, 73, 87, 91) can be inserted into at least one of said interfaces (33).

113. 发明公开

EP3201475A2 DIRECTIONAL CONTROL VALVE 有权
标题翻译：方向控制阀
公开(公告)号：EP3201475A2
公开(公告)日：2017-08-09
申请号：EP15779117.9
申请日：2015-09-29
申请人： Parker Hannifin Corporation
发明人： COOLIDGE, Gregory
IPC分类号： F15B11/16
CPC分类号： F15B11/161 , E02F3/32 , E02F9/2225 , E02F9/2267 , F15B13/026 , F15B13/027 , F15B2211/3105 , F15B2211/3122 , F16K11/07 , F16K31/426
摘要： Exemplary control valves that may be configured as a load sense, closed-center, and/or open-center valve. The control valve may include optional individual valve force sensing to potentially allow an operator to smoothly operate devices operating on low-load work ports even when a variable displacement pump is inducing pressure to operate a device connected to a high-load work port of a separate valve or worksection in the same stack. This optional force sensing may be employed on any or all worksections associated with any valve stack, and may further be included on one or both workports for any given worksection. Each worksection may include parallel and variable paths of fluid supplied by the pump. Also, flow priority to one or more worksections or external valves in a corresponding hydraulic system is optional and can be customized using the variable flow path and a corresponding fixed restriction.
摘要翻译：示例性的控制阀可以构造为负载传感器，封闭式中心和/或开中心阀。控制阀可以包括可选的单独的阀力感测，以潜在地允许操作者平稳地操作在低负载工作端口上操作的装置，即使当可变排量泵正在感应压力以操作连接到单独的高负载工作端口的装置时阀门或工作区域在同一个堆栈中。这种可选的力感测可以用在与任何阀组相关联的任何或所有工作部位上，并且可以进一步包括在一个或两个工作部位上用于任何给定的工作部位。每个工作部分可以包括由泵供应的平行和可变的流体路径。而且，对于相应液压系统中的一个或多个工作部分或外部阀的流量优先是可选的，并且可以使用可变流动路径和相应的固定限制来定制。

114. 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.

115. 发明公开

EP2975273A1 HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINE 审中-公开
标题翻译：建筑机械液压系统
公开(公告)号：EP2975273A1
公开(公告)日：2016-01-20
申请号：EP14764931.3
申请日：2014-03-13
申请人： Doosan Infracore Co., Ltd.
发明人： CHO, Yong Lak , JANG, Dal Sik , JUNG, Woo Yong , AN, Min Ha , SEO, A Reum , LEE, Sang Woo , JANG, Yoon Seok
IPC分类号： F15B13/02 , E02F9/22 , F15B11/028
CPC分类号： F15B1/027 , E02F9/2217 , E02F9/2267 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F15B1/04 , F15B11/10 , F15B11/17 , F15B13/027 , F15B13/04 , F15B2201/4155 , F15B2201/51 , F15B2211/20561 , F15B2211/20576 , F15B2211/212 , F15B2211/27 , F15B2211/40 , F15B2211/7053 , F15B2211/785
摘要： The present disclosure relates to a hydraulic system for a construction machine, and more particularly, to a hydraulic system for a construction machine including a plurality of actuators, in which each of the actuators includes a pump/motor, is operated under a control of a corresponding pump/motor, and stores working oil in an accumulator or receives the working oil supplemented from the accumulator in accordance with a difference between a flow rate entering the actuator and a flow rate discharged from the actuator.
摘要翻译：用于建筑机械的液压系统技术领域本发明涉及一种用于建筑机械的液压系统，并且更具体地涉及一种用于包括多个致动器的建筑机械的液压系统，其中每个致动器包括泵/马达，根据进入致动器的流量和从致动器排出的流量之间的差异，将工作油存储在蓄能器中或接收从蓄能器补充的工作油。

116. 发明申请

US20180142710A1 HYDRAULIC DRIVE WITH RAPID STROKE AND LOAD STROKE 审中-公开
公开(公告)号：US20180142710A1
公开(公告)日：2018-05-24
申请号：US15874482
申请日：2018-01-18
申请人： Voith Patent GmbH
发明人： Bert Brahmer
IPC分类号： F15B13/04 , B30B15/16 , F15B11/02 , F15B11/08 , F15B13/02 , F15B13/042 , F15B1/26
CPC分类号： F15B13/0401 , B30B15/161 , F15B1/265 , F15B11/022 , F15B11/08 , F15B13/024 , F15B13/027 , F15B13/042 , F15B2211/20515 , F15B2211/20538 , F15B2211/20561 , F15B2211/20576 , F15B2211/255 , F15B2211/27 , F15B2211/30525 , F15B2211/329 , F15B2211/351 , F15B2211/50563 , F15B2211/5157 , F15B2211/5158 , F15B2211/7051 , F15B2211/7053 , F15B2211/75 , F15B2211/76 , F15B2211/785
摘要： A hydraulic drive including at least one hydraulic cylinder that includes a piston chamber, an annulus, and a piston that separates the piston chamber from the annulus. The hydraulic drive also includes a first hydraulic pump hydraulically connected with the piston chamber, a second hydraulic pump hydraulically connected with the annulus, a third hydraulic pump, and a directional control valve that has a first switching position and a second switching position. The third hydraulic pump in the first switching position of the directional control valve is hydraulically connected with the piston chamber, and the third hydraulic pump in the second switching position of the directional control valve is not hydraulically connected with the piston chamber.

117. 发明申请

US20170356472A1 Hydraulic System of a Tool 审中-公开
公开(公告)号：US20170356472A1
公开(公告)日：2017-12-14
申请号：US15616588
申请日：2017-06-07
申请人： Milwaukee Electric Tool Corporation
发明人： James Ballard , Ian Zimmermann , Luke Skinner , Eric Norquist
IPC分类号： F15B11/10 , B23D29/00 , F15B13/02 , H01R43/048 , F15B15/20 , F15B15/16
CPC分类号： F15B11/10 , B23D17/06 , B23D29/00 , B23D29/002 , B25B27/026 , B25B27/10 , B25F5/005 , F15B13/027 , F15B15/16 , F15B15/202 , F15B2211/41581 , F15B2211/6313 , F15B2211/7057 , H01R43/048
摘要： An example tool includes a hydraulic actuator cylinder; a piston slidably accommodated within the hydraulic actuator cylinder, where the piston includes a piston head and a piston rod extending from the piston head along a central axis direction of the hydraulic actuator cylinder, the piston head divides an inside of the hydraulic actuator cylinder into a first chamber and a second chamber, and the piston rod is disposed in the first chamber and configured to move one or more jaws of the tool; a pump configured to provide pressurized fluid; and a sequence valve configured to block the pressurized fluid from flowing into the second chamber of the hydraulic actuator cylinder until pressure of the pressurized fluid exceeds a threshold pressure value.

118. 发明申请

US20170298963A1 Integral Hydraulic System 审中-公开
公开(公告)号：US20170298963A1
公开(公告)日：2017-10-19
申请号：US15163315
申请日：2016-05-24
申请人： Big Lift, LLC
发明人： Xu Linjie , Liu Shunli , Lin Zuqian
IPC分类号： F15B15/14 , F15B15/08
CPC分类号： F15B15/149 , F15B13/01 , F15B13/027 , F15B15/088 , F15B15/18 , F15B2211/30505 , F15B2211/324
摘要： The disclosure provides an integral hydraulic system, which includes a valve board, a lift cylinder and a reservoir connected into one integral valve body, wherein the integral valve body is further connected to an electric motor and a hydraulic gear pump, so as to form a complete power unit that includes all the valves utilized in the different functions that control a hydraulic fluid circuit in lifting and lowering of a plunger rod of the lift cylinder.

119. 发明授权

US09677576B2 Flow restricted positioner control apparatus and methods 有权
公开(公告)号：US09677576B2
公开(公告)日：2017-06-13
申请号：US14853797
申请日：2015-09-14
申请人： Flexibility Engineering, LLC
发明人： Joseph Pawelski , Thomas M. Ingraham
IPC分类号： F15B15/14 , F15B13/04 , F15B13/02
CPC分类号： F15B13/0402 , F15B13/027 , F15B15/204 , F15B2211/40507 , F15B2211/755 , F15B2211/761 , F15B2211/851 , F15B2211/8606
摘要： Particular embodiments of the inventive technology disclosed herein relate to the use of a dynamic valve to reduce motion caused by impulse force applied to a positioned component. Typically, the inventive technology finds application in an internally pressurized positioning system. At times, use of the inventive technology may lead to cost savings by, e.g., allowing for the use of smaller diameter positioner actuators and/or a reduced internal pressure.

120. 发明申请

US20160230786A1 HYDRAULIC PRESSURE GENERATION UNIT WITH PNEUMATIC ACTUATION 审中-公开
标题翻译：具有气动执行的液压发电机组
公开(公告)号：US20160230786A1
公开(公告)日：2016-08-11
申请号：US15023076
申请日：2014-09-18
申请人： Ércio Miguel NEMA
发明人： Ércio Miguel NEMA
IPC分类号： F15B11/072 , F15B1/26 , F15B13/02 , F15B3/00
CPC分类号： F15B11/0725 , F04B9/133 , F04B11/005 , F15B1/265 , F15B3/00 , F15B11/032 , F15B13/021 , F15B13/027 , F15B2211/216 , F15B2211/30
摘要： A “HYDRAULIC PRESSURE GENERATION UNIT WITH PNEUMATIC ACTUATION” in particular a multifunction unit activated by low pressure air, consisting of at least one pump (1), preferably two pumps (1 and 2), which are pneumatically automated, comprising a pneumatic cylinder (5) with a medial plunger (7), in addition to two symmetrical and opposite hydraulic plungers (8 and 9) limiting an upper hydraulic chamber (1 A and 2 A) and another lower hydraulic chamber (1 B and 2 B) having different volumes, wherein since they work in parallel and out-of-phase a reduced oil volume is required and the pulsating movement thereof is removed.
摘要翻译： “具有气动执行的液压压力发生单元”特别是由低压空气激活的多功能单元，其由气动自动化的至少一个泵（1），优选两个泵（1和2）组成，包括气动缸除了两个对称和相对的液压柱塞（8和9）之外，还具有限制上液压室（1A和2A）以及另一下液压室（1B和2B）的中间柱塞（7）体积，其中由于它们并联并且异相工作，因此需要减少的油量并且消除其脉动运动。

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