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    Ventilanordnung
    2.
    发明公开
    Ventilanordnung 审中-公开

    公开(公告)号：EP2719903A2

    公开(公告)日：2014-04-16

    申请号：EP13004271.6

    申请日：2013-08-29

    申请人： ROBERT BOSCH GMBH

    发明人： Engert, Holger ,  Schmidt, Stefan ,  Foersterling, Heino

    IPC分类号： F15B13/043 ,  F16K31/42

    CPC分类号： F15B13/0431 ,  F15B2013/0409 ,  F15B2211/30575 ,  F15B2211/328 ,  F15B2211/329 ,  F15B2211/355 ,  F15B2211/40592 ,  F15B2211/6355 ,  F15B2211/67 ,  F16K31/1225 ,  F16K31/42

    摘要： Offenbart ist, insbesondere erfindungsgemäß, eine Ventilanordnung mit einem Proportionalventil das über eine Vorsteuerschaltung vorgesteuert ist. Diese hat zum Verstellen eines Ventilschiebers des Proportionalventils in eine erste Richtung zumindest zwei Schaltventile mit unterschiedlichen Nenngrößen. Zum Verstellen des Ventilschiebers in entgegengesetzter Richtung sind ebenfalls zumindest zwei Schaltventile in unterschiedlichen Nenngrößen vorgesehen. Das jeweils größere Schaltventil dient zum schnellen Verstellen des Ventilschiebers und führt somit zu kurzen Stellzeiten, während die jeweils kleineren Schaltventile zur Feinpositionierung des Ventilschiebers eingesetzt werden.

    摘要翻译： 阀组件（1）具有在先导阀电路（6）上预先控制的液压比例阀（2）。 先导阀电路的切换阀（34,36,40,42）布置成在比例阀的供应端（S）和可调节室（26）之间流动连通，并且在罐端子（33） 和可调节室。 切换阀具有不同的标称尺寸。

    Flow summation system for controlling a variable displacement hydraulic pump
    3.
    发明公开
    Flow summation system for controlling a variable displacement hydraulic pump 有权
    Durchflusssummierungssystem zur Steuerung einer hydraulischen Pumpe mit variablerVerdrängung

    公开(公告)号：EP2439416A2

    公开(公告)日：2012-04-11

    申请号：EP11181636.9

    申请日：2011-09-16

    申请人： Husco International, Inc.

    发明人： Pfaff, Joseph ,  Hamkins, Eric

    IPC分类号： F15B11/16

    CPC分类号： F15B11/16 ,  F15B11/055 ,  F15B2211/20553 ,  F15B2211/253 ,  F15B2211/3111 ,  F15B2211/3116 ,  F15B2211/40515 ,  F15B2211/40592 ,  F15B2211/413 ,  Y10T137/85978

    摘要： A valve assembly couples a plurality of hydraulic actuators (21,22,23) to a variable displacement pump (20) and to a tank (18). A separate valve (14,15,16) is associated with each hydraulic actuator and comprises a variable flow source orifice (34a,34b,34c) between the supply conduit (28) and a summation node (44) coupled to a pump control port (19), a variable metering orifice (45) between the summation node and the associated hydraulic actuator, and a variable bypass orifice (50a,50b,50c) between the summation node and the tank. As a valve operates to enlarge the metering orifice, the flow source orifice also enlarges, and the bypass orifice shrinks. When the valve operates to shrink the metering orifice, the flow source orifice also shrinks and the bypass orifice enlarges. Those operations vary fluid flow in and out of the summation node (44), which alters pressure applied to the pump control, thereby causing the pump output to vary as required to drive the associated hydraulic actuator.

    摘要翻译： 阀组件将多个液压致动器（21,22,23）耦合到可变排量泵（20）和罐（18）。 单独的阀（14,15,16）与每个液压致动器相关联，并且包括在供应管道（28）和耦合到泵控制端口（28）之间的总和节点（44）之间的可变流量源孔（34a，34b，34c） （19），所述求和节点和相关联的液压致动器之间的可变计量孔口（45）和所述求和节点和所述罐之间的可变旁路孔口（50a，50b，50c）。 当阀门操作以扩大计量孔口时，流动源孔口也扩大，并且旁路管口收缩。 当阀门操作以收缩计量孔口时，流动源孔口也收缩，并且旁路孔口扩大。 这些操作改变流入和流出加和节点（44）的流体流量，其改变施加到泵控制器的压力，从而使得泵输出根据需要而变化以驱动相关联的液压致动器。

    METHOD FOR DEALING WITH FAULTS OCCURRING DURING THE MANUFACTURE OF A MATERIAL WEB
    4.
    发明授权
    METHOD FOR DEALING WITH FAULTS OCCURRING DURING THE MANUFACTURE OF A MATERIAL WEB 有权
    方法处理错误。在生产期间材料幅

    公开(公告)号：EP2231924B1

    公开(公告)日：2011-06-01

    申请号：EP08863004.1

    申请日：2008-12-12

    申请人： Metso Paper, Inc.

    发明人： IKONEN, Arto ,  SUOMI, Eero ,  VANTOLA, Pekka

    IPC分类号： D21G1/00 ,  D21G9/00

    CPC分类号： D21G1/004 ,  D21G9/0045 ,  F15B11/0426 ,  F15B2211/40592

    摘要： The invention relates to a method for dealing with faults occurring during the calendering of a material web, said method comprising at least the following steps of: -identifying the location of a fault (H) on the surface of a roll (5) or in a material web and estimating or calculating an arrival time of the fault (H) at a roll nip (N) and a dwell time for the fault in the roll nip, -transmitting from a control system (4) to at least one digital valve unit (100), used for controlling a nip pressure of the roll nip (N), a feed-forward adjustment instruction (F) for dealing with a fault in the roll nip (N) of a calender, -reducing as per adjustment instruction (F), through the intermediary of at least one digital valve (1), a nip pressure of the roll nip (N) at the latest when the fault (H) arrives at the roll nip (N) and increasing the nip pressure as the fault exits the roll nip.

    Hydraulic control system for an actuator
    5.
    发明公开
    Hydraulic control system for an actuator 失效
    Hydraulisches Steuersystemfürein Stellglied。

    公开(公告)号：EP0525547A1

    公开(公告)日：1993-02-03

    申请号：EP92112243.8

    申请日：1992-07-17

    申请人： PIONEER ELECTRONIC CORPORATION

    发明人： Kaneko, Hitoshi, c/o Oomori Koujou ,  Ichikawa, Shunichi, c/o Oomori Koujou

    IPC分类号： F15B9/09 ,  F15B21/08 ,  G05D3/16

    CPC分类号： F15B11/0426 ,  F15B9/09 ,  F15B2211/20538 ,  F15B2211/212 ,  F15B2211/40507 ,  F15B2211/40592 ,  F15B2211/411 ,  F15B2211/6336 ,  F15B2211/6654 ,  F15B2211/7052 ,  F15B2211/7054 ,  F15B2211/765 ,  G05D7/0652 ,  Y10T137/87322 ,  Y10T137/8741

    摘要： A hydraulic control system for controlling an actuator (19) has a cylinder (20) and a piston (25), and an oil pump (39). A first passage (31) communicates with the oil pump (39), and a second passage (32) communicates with the cylinder (20) of the actuator (19). A plurality of branch passages (34 to 37) are connected in parallel between the first and second passages (31, 32), and a valve (21 to 24) is provided in each branch passage (34 to 37). The hydraulic control system has a flow rate setting means (30) for operating each valve (21 to 24) thereby supplying a predetermined quantity of oil to the cylinder (20) of the actuator (19) to shift the piston (25) by a desired distance.

    摘要翻译： 用于控制致动器（19）的液压控制系统具有气缸（20）和活塞（25）以及油泵（39）。 第一通道（31）与油泵（39）连通，第二通道（32）与致动器（19）的气缸（20）连通。 多个分支通道（34至37）在第一和第二通道（31,32）之间并联连接，并且在每个分支通道（34至37）中设置有阀门（21至24）。 液压控制系统具有用于操作每个阀（21至24）的流量设定装置（30），从而向致动器（19）的气缸（20）供应预定量的油以将活塞（25）移动一 期望的距离。

    DETECTING OF FAULTS IN A VALVE SYSTEM AND A FAULT TOLERANT CONTROL
    10.
    发明公开
    DETECTING OF FAULTS IN A VALVE SYSTEM AND A FAULT TOLERANT CONTROL 审中-公开
    误差的阀系统和容错控制检测

    公开(公告)号：EP1924774A1

    公开(公告)日：2008-05-28

    申请号：EP06778564.2

    申请日：2006-09-06

    申请人： SIIVONEN, Lauri ,  LINJAMA, Matti

    发明人： SIIVONEN, Lauri ,  LINJAMA, Matti

    IPC分类号： F15B19/00 ,  F15B20/00

    CPC分类号： F15B11/006 ,  F15B11/0426 ,  F15B19/005 ,  F15B20/008 ,  F15B2211/30575 ,  F15B2211/40507 ,  F15B2211/40592 ,  F15B2211/411 ,  F15B2211/8636 ,  F15B2211/8752 ,  Y10T137/0318 ,  Y10T137/86493

    摘要： In a method for controlling a valve system controlling an actuator, the first direction of motion (X) of the actuator (1) is controlled solely by means of the first and the second valve series (DFCU P→A, DFCU B→T); or, its second direction of motion (Y) is controlled solely by means of the third and the fourth valve series (DFCU P→B, DFCU A→T); and an error caused by a fault situation in the control of the actuator (1) is compensated for by using, for the control of the first direction of motion (X), also the third valve series (DFCU P→B), the fourth valve series (DFCU A→T), or both of them; or, an error in the control of the actuator (1) caused by a fault situation is compensated for by using, for the control of the second direction of motion (Y), also the first valve series (DFCU P→A), the second valve series (DFCU B→T), or both of them. In the method, for searching for faults in the valve system controlling the actuator, the pressure of the inlet port (P) of the valve system, the pressure of the first working port (A), and the pressure of the outlet port (T) are determined; one or more valves of the first valve series (PAI-PAn) and one or more valves of the second valve series (AT1 - ATn) are opened; the measured pressure of the first working port (A) is compared with a situation corresponding to a system operating correctly; and on the basis of the comparison it is concluded whether the single valve is faulty or not.