公开(公告)号：EP3379120A1

公开(公告)日：2018-09-26

申请号：EP18163567.3

申请日：2018-03-23

申请人： Samson Aktiengesellschaft

发明人： Kolbenschlag, Stefan

IPC分类号： F16K31/06

CPC分类号： F16K31/0675 ,  F15B13/0401 ,  F15B13/044 ,  F16K31/0624 ,  F16K31/0682

摘要： Elektromagnetische Prallventilanordnung für ein pneumatisch betriebenes Feldgerät, insbesondere Stellgerät, einer prozesstechnischen Anlage, wie einer chemischen Anlage, einer Lebensmittel verarbeitenden Anlage, einer Kraftwerksanlage oder dergleichen, umfassend eine Luftkammer, in die drei Luftkanäle münden, wobei die drei Luftkanäle einen Luftversorgungskanal zum Empfangen von Druckluft von einer Druckluftversorgungsquelle, einen Steuerluftkanal zum Be- und Entlüften eines pneumatischen Aktors des Feldgeräts und einen Entlüftungskanal zum Abgeben von Druckluft an eine Drucksenke, wie die Atmosphäre, umfassen; wobei vorgesehen ist, dass die Prallventilanordnung ein erstes elektromagnetisches Prallventil ("Belüftungsprallventil") zum Öffnen und/oder Schließen des Luftversorgungskanals und ein zweites elektromagnetisches Prallventil ("Entlüftungsprallventil") zum Öffnen und/oder Schließen des Entlüftungskanals aufweist, wobei das erste Prallventil und das zweite Prallventil elektromagnetisch mit einander gekoppelt sind.

公开(公告)号：EP3315792A1

公开(公告)日：2018-05-02

申请号：EP16814100.0

申请日：2016-05-30

申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

发明人： EGUCHI, Toru ,  NISHIDA, Yoshiharu ,  KANEI, Naofumi ,  FUJIWARA, Hideto

IPC分类号： F15B11/024 ,  F15B11/02

CPC分类号： F15B11/024 ,  F15B11/02 ,  F15B11/10 ,  F15B13/0401 ,  F15B2013/041 ,  F15B2211/6313 ,  F15B2211/6653 ,  F15B2211/7054

摘要： Provided is a hydraulic drive device, wherein the hydraulic drive device is provided with: a cylinder (101); a rod (103); a piston (102); a hydraulic pump (107); a tank (113); a valve (106) that can be switched between a positive state of connecting the hydraulic pump (107) and a head chamber (101h) and connecting a rod chamber (101r) and the tank (113), and a negative state of connecting the hydraulic pump (107) and the rod chamber (101r) and connecting the head chamber (101h) and the tank (113); and a confluence channel (114) at which, when the valve (106) is in the positive state, at least a portion of hydraulic oil going from the rod chamber (101r) to the tank (113) is merged into hydraulic oil going from the hydraulic pump (107) to the head chamber (101h).

摘要翻译： 本发明提供一种液压驱动装置，其中液压驱动装置具备：缸体（101）; 杆（103）; 活塞（102）; 一个液压泵（107）; 一个罐（113）; 能够在连接液压泵107和头部室101h并且连接杆室101r和罐113的正状态与连接该液压泵107的负状态之间切换的阀106， 液压泵107和杆腔101r连接，并连接头腔101h和罐113; 和合流通道（114），当阀（106）处于正压状态时，至少一部分从杆腔（101r）流向油箱（113）的液压油合并成从 液压泵（107）连接到头室（101h）。

公开(公告)号：EP3124799A4

公开(公告)日：2018-03-07

申请号：EP15769217

申请日：2015-03-12

申请人： DOOSAN INFRACORE CO LTD

发明人： CHO YONG LAK

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

CPC分类号： E02F9/123 ,  E02F9/2004 ,  E02F9/2228 ,  E02F9/2267 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/08 ,  F15B11/17 ,  F15B13/0401 ,  F15B2211/20546 ,  F15B2211/20553 ,  F15B2211/20576 ,  F15B2211/41554 ,  F15B2211/45 ,  F15B2211/575 ,  F15B2211/613 ,  F15B2211/6316 ,  F15B2211/67 ,  F15B2211/7058 ,  F15B2211/7135 ,  F15B2211/7142 ,  F15B2211/853 ,  F15B2211/8609 ,  F15B2211/8616

摘要： The present disclosure relates to a method for controlling a swing motor in a hydraulic system and a hydraulic system. The method for controlling the swing motor in the hydraulic system and the hydraulic system according to the exemplary embodiment of the present disclosure may ensure the sufficient amount of hydraulic oil in a make-up line in a situation in which the hydraulic oil needs to be supplementarily supplied to the swing motor in the hydraulic system. Therefore, it is possible to prevent the occurrence of cavitation in the swing motor by stably supplying the amount of hydraulic oil at the point in time where the hydraulic oil needs to be supplementarily supplied to the swing motor. In addition, it is possible to prevent the occurrence of abnormal noise which is harsh to the ear when the cavitation occurs.

公开(公告)号：EP3254005A4

公开(公告)日：2018-01-31

申请号：EP16745998

申请日：2016-01-19

申请人： OGON CONTRACTING PTY LTD

发明人： GOSDEN LUKE ROGER

IPC分类号： F16K17/00 ,  B25B5/00 ,  B25B21/00 ,  F16K35/02 ,  F16P3/00

CPC分类号： F16K11/07 ,  F15B13/0401 ,  F15B20/00 ,  F16K17/168 ,  F16K31/44 ,  F16K31/602 ,  F16K35/025 ,  F16P3/00

摘要： Provided is a safety valve (10) comprising a body (12) which defines an incoming fluid passage (14) and a return fluid passage (20). The incoming fluid passage (14) generally enables a fluid to pass from a fluid reservoir (18) through the body (12) to the tool head (16). The return fluid passage (20) generally enables a fluid to return from the tool head (16) through the body back to the fluid reservoir (18). The body (12) further comprises a diverter (22) which is displaceable between an active position and an inactive position. When the diverter (22) is in the active position, the diverter (22) redirects the fluid via a shunting passage (24) from the incoming fluid passage (14) to the return passage (20) to prevent operation of the tool head (16). Conversely, when the diverter is in the inactive position, fluid is allowed to pass freely through the incoming and return passages (14) and (20), respectively, to allow operation of the tool head (16).

公开(公告)号：EP3124798A4

公开(公告)日：2018-01-24

申请号：EP15770367

申请日：2015-01-09

申请人： HITACHI CONSTRUCTION MACH CO

发明人： KANETA TOMOAKI ,  ISHIKAWA KOUJI ,  IMURA SHINYA ,  SATAKE HIDETOSHI

IPC分类号： E02F9/22 ,  F15B11/00 ,  F15B11/028 ,  F15B11/08

CPC分类号： E02F9/2228 ,  E02F3/32 ,  E02F3/963 ,  E02F9/2012 ,  E02F9/2225 ,  E02F9/2267 ,  E02F9/2282 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/08 ,  F15B13/0401 ,  F15B2211/30 ,  F15B2211/40 ,  F15B2211/7135

摘要： When option attachment has not been attached, a reserve flow/direction control valve 8 is made to operate as a center bypass cut valve. When an option attachment has been attached, switching control is performed. In the switching control, when the option attachment is not used, the reserve flow/direction control valve 8 is made to operate as a center bypass cut valve for adjusting composite opening area of a center bypass and thereby controlling the flow rate of hydraulic fluid flowing into an actuator. When the option attachment is used, the reserve flow/direction control valve 8 is made to operate so as to supply the hydraulic fluid to an option hydraulic actuator 14.

公开(公告)号：EP2813309B1

公开(公告)日：2018-01-17

申请号：EP14171734.8

申请日：2014-06-10

申请人： Demolition and Recycling Equipment B.V.

发明人： De Gier, Gertrudis Maria Gerardus

IPC分类号： B23D17/00 ,  E02F3/96 ,  F15B20/00 ,  F15B11/024

CPC分类号： F15B15/149 ,  E02F3/965 ,  E02F9/2267 ,  E02F9/2271 ,  F15B11/022 ,  F15B11/024 ,  F15B13/0401 ,  F15B20/007 ,  F15B2011/0243 ,  F15B2211/30505 ,  F15B2211/3058 ,  F15B2211/329 ,  F15B2211/355 ,  F15B2211/50518 ,  F15B2211/5153 ,  F15B2211/55 ,  F15B2211/775 ,  F15B2211/8636 ,  F15B2211/8752

摘要： The invention relates to a hydraulic cylinder 20, for example for use in a hydraulic tool, comprising at least one piston/cylinder combination composed of a cylinder body and a piston 14a accommodated in said cylinder body and provided with a piston rod 14 that projects from said cylinder body, wherein the cylinder body and the piston body define a first cylinder chamber 21a while the cylinder body, the piston body and the piston rod define a second cylinder chamber 21b, and wherein during operation the piston performs alternating forward and return operational cycles under the influence of a fluidum under pressure that is conducted to the first and the second cylinder chamber through a first and a second line, respectively, and a control valve 24 which regulates the supply of a fluid under pressure through the first or the second line to the piston/cylinder combination. The invention has for its object to provide an improved actuating cylinder as described above which immediately acts on the hydraulic system in the event of the emergency situations sketched above and which prevents permanent damage to the various components. According to the invention, the hydraulic cylinder is for this purpose characterised in that it comprises a safety valve 40 which is passive in a first position and which in a second position, if the pressure in the second cylinder chamber is higher than a preset load pressure, connects the second cylinder chamber to the first cylinder chamber via a differential valve 30 .

公开(公告)号：EP3259974A1

公开(公告)日：2017-12-27

申请号：EP17176599.3

申请日：2017-06-19

申请人： MACDON INDUSTRIES LTD.

发明人： Dunn, James Thomas ,  Leverick, Graham Michael ,  Lyons, Russel George ,  Shearer, Bruce Robert

IPC分类号： A01D41/14

CPC分类号： A01D41/127 ,  A01B63/008 ,  A01B63/10 ,  A01D41/141 ,  F15B11/08 ,  F15B13/0401 ,  F15B13/044 ,  F15B2211/426 ,  F15B2211/526

摘要： In a crop harvesting machine (100) there is provided a pair of hydraulic float cylinders (116, 117) for a header (104) relative to a vehicle (102), where a float pressure to the cylinders (116, 117) is directly controlled by an electronic control (28) supplying a variable control signal to a PPRR valve arrangement (18, 20) to maintain the float pressure at a predetermined value. At the set pressure a predetermined lifting force is provided to the header (104). A position sensor (120, 121) is used to generate an indication of movement and/or acceleration. The electronic control (28) is arranged, in response to changes in the sensor signal, to temporarily change the control signal to vary the lifting force and thus change the dynamic response of the hydraulic float cylinder (116, 117). In order to reduce static friction so that the system can react quickly, an arrangement is provided for causing relative reciprocating movement in an alternating wave pattern between the piston and cylinder.

摘要翻译： 在农作物收割机（100）中，提供用于相对于车辆（102）的集管（104）的一对液压浮筒（116,117），其中气缸（116,117）的浮动压力直接 由电子控制器（28）控制，所述电子控制器向PPRR阀装置（18,20）提供可变控制信号以将浮子压力保持在预定值。 在设定压力下，预定的提升力被提供给头部（104）。 位置传感器（120,121）用于产生运动和/或加速度的指示。 响应于传感器信号的变化，电子控制装置（28）被布置成临时改变控制信号以改变提升力并因此改变液压浮筒（116,117）的动态响应。 为了减少静摩擦以使系统能够快速反应，提供了一种装置，用于引起活塞和气缸之间的交替波形的相对往复运动。

公开(公告)号：EP3109366A4

公开(公告)日：2017-11-01

申请号：EP15751923

申请日：2015-01-06

申请人： HITACHI CONSTRUCTION MACH CO

发明人： KANETA TOMOAKI ,  ISHIKAWA KOUJI ,  IMURA SHINYA ,  SATAKE HIDETOSHI

IPC分类号： E02F9/20 ,  E02F3/43 ,  E02F9/12 ,  E02F9/22 ,  F15B11/04 ,  F15B21/08

CPC分类号： E02F9/123 ,  E02F3/32 ,  E02F3/435 ,  E02F9/265 ,  F15B11/08 ,  F15B13/0401 ,  F15B21/08 ,  F15B2211/205 ,  F15B2211/6313 ,  F15B2211/7053 ,  F15B2211/7058 ,  F15B2211/7128

摘要： A construction machine is characterized by including: a track structure 10; a swing structure 20 provided on the track structure 10 in a swingable manner; swing motors 25, 27 that drive and swing the swing structure; a boom 31 connected to the swing structure 20; a boom cylinder 32 that moves the boom 31 vertically; a swing operation system 72 that instructs a swing operation of the swing structure 20; a boom operation system 78 that instructs a vertical movement of the boom 31; a detector 74d that detects a bottom pressure of the boom cylinder 32; and a controller 80 that reduces swing speed of the swing structure 20 according to a signal from the detector 74d with respect to a reference swing speed according to a signal of the swing operation, while signals of the swing operation and a boom raising operation are being inputted. This ensures that a load acting on the boom can be felt on the basis of motion of a front work implement, and, on the other hand, the front work implement can be operated along a locus according to operation without being affected by the load on the boom.

公开(公告)号：EP3101285A4

公开(公告)日：2017-09-06

申请号：EP14881268

申请日：2014-01-28

申请人： HITACHI CONSTRUCTION MACH CO

发明人： HIJIKATA SEIJI ,  ISHIKAWA KOUJI ,  OOKI TAKATOSHI ,  IMURA SHINYA

IPC分类号： F15B21/14 ,  E02F9/20 ,  E02F9/22

CPC分类号： E02F9/2217 ,  E02F3/32 ,  E02F9/2075 ,  E02F9/2091 ,  E02F9/2235 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/08 ,  F15B13/0401 ,  F15B13/044 ,  F15B21/14 ,  F15B2211/20546 ,  F15B2211/41527 ,  F15B2211/41581 ,  F15B2211/426 ,  F15B2211/611 ,  F15B2211/6316 ,  F15B2211/7053 ,  F15B2211/7058 ,  F15B2211/88

摘要： Provided is a hydraulic fluid energy recovery system for a work machine equipped with a hydraulic pump, a hydraulic actuator for driving the work machine, an operating device for operating the hydraulic actuator, and a regenerating device for recovering a return fluid flowing back from the hydraulic actuator. The hydraulic fluid energy recovery system includes: a fluid line for allowing the return fluid from the hydraulic actuator to flow through the line; a section for branching the fluid line into a plurality of fluid lines; a recovery circuit that serves as one of the branch fluid lines and includes the regenerating device; a discharge circuit that serves as the other of the branch fluid lines and discharges the return fluid to a tank; a flow control device disposed in the discharge circuit so as to be able to control a flow rate of the return fluid; an operation amount detector for detecting the operation amount on the operating device; and a control device configured to acquire the operation amount detected by the operation amount detector, calculate a target discharge flow rate of the return fluid flowing through the discharge circuit, and calculate a target regeneration flow rate of the return fluid flowing through the recovery circuit, the control device thereby controlling the flow control device according to the target discharge flow rate and also controlling the regenerating device according to the target regeneration flow rate.

摘要翻译： 本发明提供一种作业机械的液压流体能量回收系统，该液压流体能量回收系统具备液压泵，驱动该作业机械的液压执行机构，该液压执行机构的动作用的操作装置以及回收从该液压回流的返回液体的再生装置 执行器。 液压流体能量回收系统包括：流体管线，用于允许来自液压致动器的回流流体流过管线; 用于将流体管线分支成多个流体管线的部分; 作为分支流体管线之一并包括再生装置的回收回路; 排出回路，其用作分支流体管路中的另一个并将返回流体排出到箱; 流量控制装置，其设置在所述排出回路中以能够控制所述返回流体的流量; 操作量检测器，用于检测操作装置上的操作量; 以及控制装置，其被构造成获取由所述操作量检测器检测到的操作量，计算在所述排出回路中流动的所述返回流体的目标排出流量，并且计算流过所述回收电路的所述返回流体的目标再生流量， 控制装置根据目标排放流量来控制流量控制装置，并且还根据目标再生流率来控制再生装置。

公开(公告)号：EP3196482A2

公开(公告)日：2017-07-26

申请号：EP16203985.3

申请日：2016-12-14

申请人： CNH Industrial Italia S.p.A.

发明人： BRINKLEY, Jerry L. ,  LACHER, Jonathan ,  FREISLEBEN, Michael

IPC分类号： F15B11/02 ,  A01B63/10 ,  F15B11/05

CPC分类号： F15B13/0401 ,  A01B63/10 ,  A01B63/1013 ,  A01C7/205 ,  F15B11/02 ,  F15B11/05 ,  F15B11/055 ,  F15B11/08 ,  F15B13/0417 ,  F15B13/044 ,  F15B2211/20538 ,  F15B2211/20546 ,  F15B2211/25 ,  F15B2211/253 ,  F15B2211/3144 ,  F15B2211/329 ,  F15B2211/50554 ,  F15B2211/7128

摘要： In one aspect, a system for controlling the supply of hydraulic fluid to an implement of a work vehicle may generally include a pump, a control valve coupled to the pump and first and second fluid lines provided in flow communication with output ports of the control valve. The system may also include a pressure control valve provided in flow communication with the second fluid line that is configured to regulate a fluid pressure of the hydraulic fluid being supplied to a hydraulic cylinder of the implement. Additionally, the system may include a bypass fluid line configured to provide a flow path for hydraulic fluid between the pump and the second fluid line that is independent of the control valve and a load sensing line configured to provide an indication of the fluid pressure of the hydraulic fluid being supplied to the hydraulic cylinder.