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    REGELEINRICHTUNG FÜR EINE HYDROPUMPE
    61.
    发明公开
    REGELEINRICHTUNG FÜR EINE HYDROPUMPE 失效
    REGELEINRICHTUNGFÜREINE HYDROPUMPE

    公开(公告)号：EP0746690A1

    公开(公告)日：1996-12-11

    申请号：EP95909750.0

    申请日：1995-02-21

    申请人： MANNESMANN REXROTH GmbH

    发明人： HARNISCHFEGER, Edwin

    IPC分类号： F15B11

    CPC分类号： F15B11/165 ,  F15B2211/20553 ,  F15B2211/30525 ,  F15B2211/3144 ,  F15B2211/31511 ,  F15B2211/329 ,  F15B2211/355 ,  F15B2211/605 ,  F15B2211/67 ,  F15B2211/71

    摘要： A control system for a variable-displacement hydraulic pump having an adjustment device and being electrical current-adjustable as required for supplying pressure to a first hydraulic apparatus (13), and pressure-adjustable for supplying pressure to a second hydraulic apparatus (14), in which case the pressure rating and the setting of the pilot valve controlled by the second hydraulic apparatus (14) may be programmed by a control signal. The control system includes a first control valve (18) that can be actuated by the weight of the load of the first apparatus (13) and by a spring (23) when switching to a higher displacement, or by the pump pressure when switching to a lower displacement. The system further includes a second control valve (19) which can be exposed to a force corresponding to the control signal (25) when switching to a higher displacement, or to the pump pressure when switching to a lower displacement.

    摘要翻译： 1。一种可变容量型液压泵的控制装置，其特征在于，具有调节装置，能够根据需要向第一液压装置（13）供给压力而进行电流调节，并且能够对第二液压装置（14） 在这种情况下，压力等级和由第二液压设备（14）控制的导阀的设定可以通过控制信号来编程。 该控制系统包括第一控制阀（18），该第一控制阀能够通过第一装置（13）的负载的重量而被致动，并且在切换到较高排量时通过弹簧（23）或者在切换到 较低的排量。 该系统还包括第二控制阀（19），当切换到较高排量时，该第二控制阀可以暴露于对应于控制信号（25）的力，或者当切换到较低排量时暴露于泵压力。

    Straight travelling apparatus for heavy construction equipment
    62.
    发明公开
    Straight travelling apparatus for heavy construction equipment 失效
    一种用于重型施工设备直行

    公开(公告)号：EP0709579A2

    公开(公告)日：1996-05-01

    申请号：EP95630078.4

    申请日：1995-07-11

    申请人： SAMSUNG HEAVY INDUSTRIES CO., LTD

    发明人： Chung, Dae Seung

    IPC分类号： F15B11/17

    CPC分类号： E02F9/2239 ,  F15B11/17 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/30595 ,  F15B2211/3116 ,  F15B2211/355 ,  F15B2211/71 ,  F15B2211/78

    摘要： A straight travelling apparatus for heavy construction equipment such as excavator or crane, including a straight travel valve disposed in both lines respectively branching from first and second hydraulic pumps and switched between a first state at which a fluid delivered from the first hydraulic pump is supplied to a right travel motor and a part of the actuators of a working system while a fluid delivered from second hydraulic pump is supplied to a left travel motor and the remaining part of the actuators of the working system and a second state at which the fluid delivered from the first hydraulic pump is supplied to both the right and left travel motors while the fluid delivered from the second hydraulic pump is supplied to all actuators of the working system, first and second pilot fluid lines both branching from the pilot pump, a connecting fluid line adapted to communicate the first and second pilot fluid lines with each other, a fluid line branching from the connecting fluid line, and a relief check valve disposed at a predetermined position between a branching point where the fluid line branches from the connecting fluid line and a connecting point where the connecting fluid line is connected to the second pilot fluid line.

    Brake circuit apparatus for hydraulic motor
    64.
    发明公开
    Brake circuit apparatus for hydraulic motor 失效
    Bremskreislaufvorrichtungfüreinen液压电机。

    公开(公告)号：EP0209123A1

    公开(公告)日：1987-01-21

    申请号：EP86109746.7

    申请日：1986-07-16

    申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.

    发明人： Tanaka, Hideaki ,  Hirata, Toichi ,  Sugiyama, Genroku ,  Yoshida, Kuniaki ,  Mihara, Shinichi

    IPC分类号： E02F9/12 ,  E02F9/22

    CPC分类号： E02F9/123 ,  E02F9/128 ,  E02F9/2221 ,  E02F9/2285 ,  F15B11/0445 ,  F15B2211/20576 ,  F15B2211/3056 ,  F15B2211/3116 ,  F15B2211/329 ,  F15B2211/355 ,  F15B2211/50527 ,  F15B2211/6355 ,  F15B2211/7058 ,  F15B2211/71 ,  F15B2211/715 ,  F16H61/4061

    摘要： The brake circuit apparatus (30; 40; 50; 60) having at least one main hydraulic pump (1), a hydraulic motor (3) driven by a hydraulic fluid supplied from the main pump and having a rotary shaft (3a), and a directional control valve (9; 41) actuated by an operation device (18) for control of flow rate and flow direction of the hydraulic fluid supplied to the hydraulic motor from the main pump. The hydraulic motor is provided with a mechanical brake device (15) having a brake release cylinder (19) adapted to release the rotary shaft (3a) of the motor from the braking by the mechanical brake device by supply of a hydraulic fluid to the brake re- leasa cylinder. The apparatus further has an auxiliary hydraulic pump (31; 56) and a control circuit (32; 57; 61) connected to the auxiliary pump, brake release cylinder (19) and reservoir (17) for control of fluid communication there- between. The control circuit includes a hydraulic fluid supply line (31a; 56a) for receiving a hydraulic fluid supplied from the auxiliary hydraulic pump, a first line (33; 62) connected between the hydraulic fluid supply line and the brake release cylinder, and a second line (34) connected between the hydraulic fluid supply line and the reservoir. The second line is associated with the directional control valve (9; 41) such that when the valve is in a neutral position, the hydraulic fluid supply line is brought into communication with the reservoir to thereby disable a hydraulic fluid from the supply line from being supplied to the brake release cylinder through the first line (33; 62), while when the valve is actuated, such communication is interrupted to thereby enable the hydraulic fluid from the supply line to the supplied to the brake release cylinder through the first line (33; 62).

    摘要翻译： 制动回路装置（30; 40; 50; 60）具有至少一个主液压泵（1），由从主泵供给并具有旋转轴（3a）的液压流体驱动的液压马达（3），以及 由操作装置（18）致动的用于控制从主泵供给到液压马达的液压流体的流量和流动方向的方向控制阀（9; 41）。 液压马达设置有机械制动装置（15），其具有制动释放缸（19），该制动释放缸（19）适于通过向制动器供给液压流体，通过机械制动装置将马达的旋转轴（3a）从制动中释放 释放气瓶。 该装置还具有辅助液压泵（31; 56）和连接到辅助泵，制动释放缸（19）和储存器（17）上的控制电路（32; 57; 61），用于控制其间的流体连通。 控制回路包括用于接收从辅助液压泵供给的液压流体的液压流体供给管线（31a; 56a），连接在液压流体供给管线和制动器释放缸体之间的第一管线（33; 62） 连接在液压流体供应管线和储存器之间的管线（34）。 第二线与方向控制阀（9; 41）相关联，使得当阀处于中间位置时，液压流体供应管线与储存器连通，从而使来自供应管线的液压流体不被 通过第一管线（33; 62）供应到制动释放缸，同时当阀被致动时，这种连通被中断，从而使来自供应管线的液体流经第一管线供应到制动释放缸（ 33，62）。

    Apparatus for remote hydraulic control of a subsea well device
    68.
    发明公开
    Apparatus for remote hydraulic control of a subsea well device 失效
    Vorrichtung zur hydraulischen Fernsteuerung einer Unterwasser-Bohrlochvorrichtung。

    公开(公告)号：EP0009364A2

    公开(公告)日：1980-04-02

    申请号：EP79301866.4

    申请日：1979-09-12

    申请人： FMC CORPORATION

    发明人： Milberger, Lionel John

    IPC分类号： E21B33/035 ,  E21B34/16 ,  F15B11/16 ,  G05D3/00

    CPC分类号： E21B34/16 ,  E21B33/0355 ,  F15B11/16 ,  F15B2211/30585 ,  F15B2211/329 ,  F15B2211/355 ,  F15B2211/50518 ,  F15B2211/50554 ,  F15B2211/575 ,  F15B2211/6355 ,  F15B2211/67 ,  F15B2211/71 ,  F15B2211/78 ,  F15B2211/857 ,  Y10T137/86389

    摘要： Apparatus for the remote individual control of a plurality of hydraulically-actuated operators comprises first and second signal pressure lines (A, B) connected from a pressure source (37) to supply selected pressure signals to a plurality of AND-gates (G1-G25) each having its output connected to a-separate operator, and a pair of matrices (Vl-V5, V6-V10) of series-connected valvepairs connected between the respective signal pressure lines and the respective inputs of the AND-gates to select the appropriate pressure signals, for the applicator to be energised and apply them to the two inputs of the AND-gates associated with that applicator, each AND-gate when opened by said signals connecting the associated applicator to a source of pressure.

    摘要翻译： 用于远程单独控制多个液压致动操作器的装置包括从压力源（37）连接的将选择的压力信号提供给多个与门（G1-G25）的第一和第二信号压力线（A，B） （V1-V5，V6-V10）连接在各个信号压力线与各个AND门的相应输入端之间，以选择合适的 压力信号，用于施加器被激励，并且当通过将相关联的施加器连接到压力源的所述信号打开时，将它们施加到与该施加器相关联的与门的AND门的两个输入端。