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    HYDRAULIC SYSTEM
    3.
    发明公开
    HYDRAULIC SYSTEM 审中-公开

    公开(公告)号：EP3396175A1

    公开(公告)日：2018-10-31

    申请号：EP18164278.6

    申请日：2018-03-27

    申请人： HULTDIN SYSTEM AB

    发明人： ANDERSSON, Rickard

    IPC分类号： F15B11/20 ,  F15B13/07

    CPC分类号： F15B11/20 ,  F15B13/07

    摘要： A hydraulic system comprising a first hydraulic line (3) which is connected to a hydraulic fluid source, and a second hydraulic line (4) which is connected to a hydraulic receiver (5), as well as a first consumer (Ca) and a second consumer (Cb) which are connected in parallel with each other between the first hydraulic line and the second hydraulic line for being activated in sequence, said consumers each comprising a first hydraulic port (1a, 1b), which is connected to the first hydraulic line, and a second hydraulic port (2a, 2b), which is connected to the second hydraulic line. The hydraulic system comprises a valve device (6) which is connected between the second consumer and the second hydraulic line, said valve device comprising a first valve port (7), which is connected to the second hydraulic port of the second consumer, and a second valve port (8), which is connected to the second hydraulic line, said valve device being adapted to assume a first, closed valve state when the hydraulic pressure (Pin) in the first hydraulic line falls below a predetermined pressure (P0) and a second, open valve state when the hydraulic pressure in the first hydraulic line exceeds said predetermined pressure, wherein in said closed valve state, the valve device is adapted to prevent hydraulic fluid to flow from the second consumer to the second hydraulic line, and wherein in said open valve state, the valve device is adapted to allow hydraulic fluid to flow from the second consumer to the second hydraulic line.

    HYDRAULIKVENTIL ZUM SCHALTEN EINES STELLKOLBENS EINES PLEUELS
    4.
    发明公开
    HYDRAULIKVENTIL ZUM SCHALTEN EINES STELLKOLBENS EINES PLEUELS 审中-公开

    公开(公告)号：EP3234320A1

    公开(公告)日：2017-10-25

    申请号：EP15808366.7

    申请日：2015-11-30

    申请人： Hilite Germany GmbH

    发明人： SCHULZE, Dietmar ,  MUDRA, Alexander

    IPC分类号： F02B75/04 ,  F16K31/122 ,  F02D15/02 ,  F15B13/07 ,  F16C7/06

    CPC分类号： F02B75/045 ,  F02D15/02 ,  F15B13/07 ,  F16C7/06 ,  F16C23/10 ,  F16C2360/22 ,  F16K11/07 ,  F16K31/1221 ,  F16K31/363 ,  F16K31/52483 ,  F16K31/56

    摘要： The invention relates to a hydraulic valve (8) having a hydraulic fluid, in particular for switching a control piston (31, 32) in a connecting rod (1) for variable compression of an internal combustion engine, which hydraulic valve comprises a valve housing (44), which has a first working connection (A1), a second working connection (A2), and a supply connection (P), to which supply connection a hydraulic pressure of the hydraulic fluid can be applied, whereby a movable piston (9) arranged in the valve housing (16) can be displaced against the force of a preloaded spring (10). The piston (9) is selectively lockable in a first switching position (S1) and in a second switching position (S2). An axial shaft (12) arranged in the valve housing (44) has a switching gate (14), whereby the piston (9) can be guided from the first switching position (S1) into the second switching position (S2) and from the second switching position (S2) into the first switching position (S1) by means of a control element (16) guided in the switching gate (14). The invention further relates to a connecting rod (1) having such a hydraulic valve (8).

    摘要翻译： 具有液压流体的液压阀技术领域本发明涉及一种具有液压流体的液压阀（8），特别是用于在连杆（1）中切换用于内燃机的可变压缩的控制活塞（31,32），该液压阀包括阀壳体 （A1），第二工作连接件（A2）和供应连接件（P）的供应连接件（44），所述供应连接件能够施加所述液压流体的液压压力，由此可移动活塞 布置在阀壳体（16）中的阀（9,9）可以抵抗预加载弹簧（10）的力而移动。 活塞（9）可选择性地锁定在第一切换位置（S1）和第二切换位置（S2）中。 布置在阀壳体（44）中的轴向轴（12）具有切换闸门（14），由此可以将活塞（9）从第一切换位置（S1）引导到第二切换位置（S2） 第二切换位置（S2）通过在切换门（14）中引导的控制元件（16）而切换到第一切换位置（S1）。 本发明还涉及一种具有这种液压阀（8）的连杆（1）。

    Multiplexed hydraulic control systems
    9.
    发明公开
    Multiplexed hydraulic control systems 失效
    多路复用液压控制系统

    公开(公告)号：EP0437111A3

    公开(公告)日：1991-08-21

    申请号：EP90314419.4

    申请日：1990-12-28

    申请人： WOODWARD GOVERNOR COMPANY

    发明人： Sievert, Dale W. ,  Wardle, John W. ,  Leeson, James L.

    IPC分类号： G05B19/46 ,  G05B19/41 ,  F15B13/07

    CPC分类号： F15B13/07 ,  G05B19/414 ,  G05B19/46 ,  Y10T137/86911 ,  Y10T137/87201 ,  Y10T137/87209

    摘要： A multiplexed hydraulic control system having a plurality of hydraulic channels for individually controlling the positions of a plurality of actuators in the respective channels in accordance with a corresponding plurality of electrical control signals. The system includes a relatively small multiplexing valve or valve array which has a common input and a plurality of individually selected outputs. The multiplexing valve has a control input which is responsive to a source of binary selector signals, such selector signals being used to directly address any particular channel connected to the multiplexer. The system also includes means for modulating a hydraulic signal in accordance with selected ones of the plurality of electrical control signals, and applying the modulated hydraulic signal to the multiplexer common input. Control means then coordinates the addressing of the multiplexer with the modulating of the hydraulic signal to assure that hydraulic signals of the appropriate magnitude are coupled to each addressed channel, thereby to control all of the channels in accordance with the control signals for each channel.

    摘要翻译： 一种多路复用液压控制系统，具有多个液压通道，用于根据相应的多个电控制信号分别控制各个通道中的多个致动器的位置。 该系统包括具有共同输入和多个单独选择的输出的相对小的复用阀或阀阵列。 多路复用阀具有响应于二进制选择器信号源的控制输入，这种选择器信号被用于直接寻址连接到多路复用器的任何特定信道。 该系统还包括用于根据多个电控制信号中的选定电控制信号来调制液压信号并且将经调制的液压信号施加到多路复用器公共输入的装置。 然后，控制装置将多路复用器的寻址与液压信号的调制协调，以确保具有适当幅度的液压信号耦合到每个寻址的通道，从而根据每个通道的控制信号来控制所有通道。

    Multiplexed hydraulic control system
    10.
    发明公开
    Multiplexed hydraulic control system 失效
    多重液压控制系统

    公开(公告)号：EP0410812A3

    公开(公告)日：1991-06-19

    申请号：EP90308304.6

    申请日：1990-07-27

    申请人： WOODWARD GOVERNOR COMPANY

    发明人： McLevige, Daniel J. ,  Wernberg, Donald E.

    IPC分类号： F15B13/07 ,  F15B21/08

    CPC分类号： G05B19/46 ,  G05B19/4144 ,  Y10T137/86501

    摘要： A multiplexed hydraulic control system in which high force margins for the multiplexer are achieved by employing hydraulic oscillators as the multiplexer driving means. The multiplexer (20) is typically in the form of a hydraulic cylinder (25) having an input port (40) and a plurality of output ports (27,28,41-43), with an operator (26) in the cylinder (25) for individually connecting the input port (40) to the output ports (27,28,41-43). The hydraulic oscillator (30) is mechanically coupled to the multiplexer operator (26), and oscillation of the former causes oscillation of the latter to sequentially connect the input (40) to each of the outputs (27,28,41-43). Various means are taught for initiating reversal of the oscillator (30) and controlling the oscillation speed.