公开(公告)号：EP4039072B1

公开(公告)日：2023-12-13

申请号：EP22155207.8

申请日：2022-02-04

发明人： CIARROCCHI, Marco Pietro ,  PINTORE, Francesco

IPC分类号： A01B59/043 ,  F15B11/22

公开(公告)号：EP4237692A1

公开(公告)日：2023-09-06

申请号：EP21887545.8

申请日：2021-10-28

申请人： Naiad Maritime Group, Inc.

发明人： VENABLES, John D. ,  PAPPAS, Christopher M.

IPC分类号： F15B11/22 ,  B63H25/44 ,  B63B39/06

公开(公告)号：EP3677795A1

公开(公告)日：2020-07-08

申请号：EP19831558.2

申请日：2019-05-15

申请人： KYB Corporation

发明人： MATSUURA, Akio

IPC分类号： F15B11/22 ,  E02F9/02 ,  E02F9/22

摘要： In a valve device (100), travel control valve unit (130) has a communication path causing the lead-out passages (123) of the left and right travel control valve units (130) to communicate with each other, and a spool (170) has a lead-out side land portion (172) configured to cause communication or shut-off of the communication between the lead-out passage (123) and the communication path, a discharge-side land portion (173) configured to cause communication or shut-off of the communication between the actuator passage (125) and the discharge passage (129), a discharge portion (192B) provided on the lead-out side land portion (172) and configured to discharge a part of the working fluid led from the supply passage to the lead-out passage (123) to the discharge passage (129) at a movement initial stage of the spool (170), and a communication portion (192A) provided on the lead-out side land portion (172) and configured to cause the lead-out passage (123) and the communication path to communicate with each other at a movement final stage of the spool (170).

公开(公告)号：EP3647500A1

公开(公告)日：2020-05-06

申请号：EP19205561.4

申请日：2019-10-28

申请人： Doosan Infracore Co., Ltd.

发明人： KIM, Kiyong ,  KIM, Changmook ,  SEO, Youngmin ,  JEONG, Taeseob

IPC分类号： E02F9/22 ,  F15B11/17 ,  F15B11/22

摘要： A travel control system for construction machinery includes first and second hydraulic pumps, a first travel motor and a second travel motor operable by a working oil discharged from the first hydraulic pump or the second hydraulic pump, at least one actuator operable by the working oil discharged from the first hydraulic pump or the second hydraulic pump, a straight travel valve to be switched between a first position and a second position, first and second travel motor control valves configured to control amounts of the working oil supplied to the first and second travel motors, first and second spool displacement adjusting valves supplying pilot signal pressures to the spools of the first and second travel motor control valves respectively, and a controller configured to output a control signal to each of the first and second spool displacement adjusting valves corresponding to a manipulation signal of an operator.

公开(公告)号：EP2302222B1

公开(公告)日：2018-08-08

申请号：EP09766588.9

申请日：2009-06-12

申请人： Nabtesco Corporation

发明人： MIKI, Takashi ,  HATANAKA, Yasunori

IPC分类号： F15B11/22 ,  E02F9/22 ,  E02F3/43 ,  F15B13/08

CPC分类号： E02F9/2267 ,  E02F3/433 ,  E02F9/2225 ,  F15B13/0835 ,  F15B13/0839 ,  F15B2211/3116 ,  F15B2211/4053 ,  F15B2211/41527 ,  F15B2211/428 ,  F15B2211/782 ,  Y10T137/87249

摘要： A stack valve 1 includes an ascending dividing valve 14 which is provide on an ascending junction path 23 and controls the flow rate of a pressure fluid supplied to a head-side chamber 4a of a bucket cylinder 4, an ascending branched path 24 which is branched from the ascending junction path 23 and connected to an unloading path 21, and an ascending cancellation switching valve 19 which is provided on the ascending branched path 24 to close or open the ascending branched path 24. The ascending dividing valve 14 and the ascending cancellation switching valve 19 are provided in the same dividing section 83.

公开(公告)号：EP3207261A1

公开(公告)日：2017-08-23

申请号：EP15850204.7

申请日：2015-10-16

申请人： Vehicle Service Group, LLC

发明人： TAYLOR, Steven H. ,  KELLEY, Brian E. ,  KATERBERG, Kevin S. ,  DEUERLING, Austin

IPC分类号： F15B11/22

CPC分类号： B66F3/24 ,  B66F3/46 ,  B66F7/0666 ,  B66F7/08 ,  F15B11/16 ,  F15B2211/405 ,  F15B2211/41572 ,  F15B2211/7107 ,  F15B2211/782

摘要： An apparatus includes a housing, a piston, an input cavity, a first actuating shaft, a first output cavity, and a second output cavity. The housing comprise an input port, a first output port, a second output port, a first end, a second end, a first wide wall having a first internal surface, and a chamber at least partially defined by the first end and the first internal surface. The piston is able to actuate along the first internal surface of the first side wall. The input cavity is in fluid communication with the input port. The first output cavity is in fluid communication with the first output port. The second output cavity is in fluid communication with the second output port. The first actuating shaft is fixed to the piston and helps fluidly isolate the first output port from the second output port.

摘要翻译： 一种设备包括壳体，活塞，输入腔，第一致动轴，第一输出腔和第二输出腔。 壳体包括输入端口，第一输出端口，第二输出端口，第一端部，第二端部，具有第一内表面的第一宽壁以及至少部分地由第一端部和第一内部限定的腔室 表面。 活塞能够沿着第一侧壁的第一内表面致动。 输入腔与输入端口流体连通。 第一输出腔与第一输出端口流体连通。 第二输出腔与第二输出端口流体连通。 第一致动轴固定在活塞上并帮助将第一输出端口与第二输出端口流体隔离。

公开(公告)号：EP2699804A4

公开(公告)日：2015-07-29

申请号：EP12859424

申请日：2012-04-10

申请人： ACTUANT CORP

发明人： STANFORD FRANTZ D

IPC分类号： F15B7/00 ,  B66F3/24 ,  B66F3/46 ,  E01D15/02 ,  E04B1/35 ,  F15B11/13 ,  F15B11/22

CPC分类号： F15B11/13 ,  B66F3/24 ,  B66F3/46 ,  E04B1/3511 ,  F15B11/22 ,  F15B2211/20538 ,  F15B2211/3051 ,  F15B2211/30515 ,  F15B2211/327 ,  F15B2211/6309 ,  F15B2211/7052 ,  F15B2211/782

摘要： A synchronous lifting system with single-rod, single-acting hydraulic cylinders controlled by parallel-connected lift valves having two fluid passages. Hydraulic fluid for extending the actuators is delivered by a hydraulic supply system alternating between the two passages. Each time the supply circuit alternates passages, a fixed volume of hydraulic fluid is transferred by the lift valves to the cylinders causing the rods to lift a proportionate amount. All of the rods extend by approximately the same increment each time the supply circuit alternates passages. Because the rods all extend the same increment each cycle, the load is lifted evenly and the need for height sensors or transducers is eliminated.

公开(公告)号：EP2551029B1

公开(公告)日：2014-03-12

申请号：EP12177973.0

申请日：2012-07-26

申请人： Promau S.R.L.

发明人： Davi, Orazio Maria

IPC分类号： B21D5/14 ,  F15B11/17 ,  F15B11/22

CPC分类号： B21D5/14 ,  B21C51/00 ,  F15B11/16 ,  F15B11/22 ,  F15B13/06 ,  F15B2211/20576 ,  F15B2211/255 ,  F15B2211/41563 ,  F15B2211/426 ,  F15B2211/45 ,  F15B2211/6336 ,  F15B2211/71 ,  F15B2211/7107 ,  F15B2211/7142 ,  F15B2211/7656 ,  F15B2211/782

摘要： An apparatus for the electrohydraulic control of the parallelism of a roller (4) in a bending machine (1;10) for working metal pieces (L), comprises pump means (P1,P2) for supplying with an operating fluid first actuating means (C1) and second actuating means (C2) arranged for moving respectively a first end (11) and a second end (12) of said roller (4); position transducer means (T1,T2) connected operationally to an electronic control unit (U1) and suitable for detecting the positions of said first (11) and second (12) end; first (VP1) and second (VP2) proportional valve means that are operatively controllable by said electronic control unit (U1) to adjust the flow of said operating fluid into said first (C1) and second (C2) actuating means according to of signals of said position transducer means (T1,T2). The pump means comprises a first pump (P1) and a second pump (P2) that are operatively connected together, arranged for supplying in a dedicated manner said first (C1) and second (C2) actuating means respectively by means of a first (5) and a second (6) hydraulic circuit that are independent of one another, said first (VP1) and second (VP2) proportional valve means being located, according to a parallel configuration, along a first (13) and a second (14) conduit connected in a branched manner to a first (8) and second (18) delivery portion of said first (5) and second (6) hydraulic circuit respectively. The first (VP1) and second (VP2) proportional valve means are configured for being able to tap operating fluid from said first (8) and second (18) delivery portion to reduce the volumetric flowrate thereof towards said first (C1) and second (C2) actuating means. A corresponding method is also provided for controlling the parallelism of a roller (4) of a bending machine (1; 10).

公开(公告)号：EP2251550A3

公开(公告)日：2013-11-06

申请号：EP10004221.7

申请日：2010-04-21

申请人： Liebherr-France SAS

发明人： Helbling, Frank ,  Graebling, Cyril

IPC分类号： F15B11/22 ,  F15B20/00 ,  E02F3/42

CPC分类号： F15B11/22 ,  E02F9/2203 ,  F15B20/005 ,  F15B2211/40553 ,  F15B2211/40584 ,  F15B2211/465 ,  F15B2211/7128

摘要： Die vorliegende Erfindung betrifft ein Hydrauliksystem mit wenigstens zwei Kolbenzylindereinheiten, wenigstens einer Ausgleichsleitung zum Druckausgleich zwischen den Kolbenzylindereinheiten und Steuerkolben, wobei je ein Steuerkolben einem Anschluss einer Kolbenzylindereinheit zugeordnet ist, und wobei wenigstens ein 2-Wege-Stromregelventil mit Rückschlagventilfunktion mit der wenigstens einen Ausgleichsleitung in Verbindung steht.

公开(公告)号：EP2551029A1

公开(公告)日：2013-01-30

申请号：EP12177973.0

申请日：2012-07-26

申请人： Promau S.R.L.

发明人： Davi, Orazio Maria

IPC分类号： B21D5/14 ,  F15B11/17 ,  F15B11/22

CPC分类号： B21D5/14 ,  B21C51/00 ,  F15B11/16 ,  F15B11/22 ,  F15B13/06 ,  F15B2211/20576 ,  F15B2211/255 ,  F15B2211/41563 ,  F15B2211/426 ,  F15B2211/45 ,  F15B2211/6336 ,  F15B2211/71 ,  F15B2211/7107 ,  F15B2211/7142 ,  F15B2211/7656 ,  F15B2211/782

摘要： An apparatus for the electrohydraulic control of the parallelism of a roller (4) in a bending machine (1;10) for working metal pieces (L), comprises pump means (P1,P2) for supplying with an operating fluid first actuating means (C1) and second actuating means (C2) arranged for moving respectively a first end (11) and a second end (12) of said roller (4); position transducer means (T1,T2) connected operationally to an electronic control unit (U1) and suitable for detecting the positions of said first (11) and second (12) end; first (VP1) and second (VP2) proportional valve means that are operatively controllable by said electronic control unit (U1) to adjust the flow of said operating fluid into said first (C1) and second (C2) actuating means according to of signals of said position transducer means (T1,T2). The pump means comprises a first pump (P1) and a second pump (P2) that are operatively connected together, arranged for supplying in a dedicated manner said first (C1) and second (C2) actuating means respectively by means of a first (5) and a second (6) hydraulic circuit that are independent of one another, said first (VP1) and second (VP2) proportional valve means being located, according to a parallel configuration, along a first (13) and a second (14) conduit connected in a branched manner to a first (8) and second (18) delivery portion of said first (5) and second (6) hydraulic circuit respectively. The first (VP1) and second (VP2) proportional valve means are configured for being able to tap operating fluid from said first (8) and second (18) delivery portion to reduce the volumetric flowrate thereof towards said first (C1) and second (C2) actuating means. A corresponding method is also provided for controlling the parallelism of a roller (4) of a bending machine (1; 10).

摘要翻译： 一种用于在弯曲机（1; 10）的辊子（4）的平行度的电动液压控制的装置，用于加工金属片（L），包括泵装置（P1，P2），用于与供应（在工作流体的第一促动装置 C1）和设置成用于分别移动所述辊子（4）的第一端（11）和第二端（12）的第二致动装置（C2）; 装置位置传感器（T1，T2）中的电子控制单元（U1）和合适的操作上连接到用于第一（11）检测所述的位置和第二（12）端部; 第一（VP1）和第二（VP2）比例阀bedeutet，DASS是由所述电子控制单元（U1），其可操作控制以所述操作流体的致动装置流入所述第一（C1）和第二（C2）雅丁调整到的信号的 所述位置换能器装置（T1，T2）。 所述泵装置包括一个第一泵（P1）和第二泵（P2）并分别由第一手段可操作地连接在一起，设置成用于以专用的方式提供所述分别在第一（C1）和第二（C2）致动装置（5 ）和第二（6）的液压回路确实是彼此独立的，所述第一（VP1）和第二（VP2）比例阀装置位于，雅丁到并联配置，沿着第一（13）和第二（14） 导管分别第一（5）和第二（6）的液压回路连接成支链的方式第一（8）和第二（18）交货的所述部分。 第一（VP1）和第二（VP2）比例阀装置被配置为能够从所述抽头工作流体的第一（8）和第二（18）部分，以减少朝向所述第一（C1）和第二它们的体积流速输送（ C2）致动装置。 因此，提供一种用于控制弯曲机（1; 10）的辊子（4）的平行的相应方法。