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    METHOD AND DEVICE FOR CONTROLLING A HYDRAULIC SYSTEM
    1.
    发明公开
    METHOD AND DEVICE FOR CONTROLLING A HYDRAULIC SYSTEM 审中-公开
    VERFAHREN UND VORRICHTUNG ZUR STEUERUNG EINES HYDRAULIKSYSTEMS

    公开(公告)号：EP2446151A4

    公开(公告)日：2014-03-12

    申请号：EP10792421

    申请日：2010-06-23

    申请人： NORDHYDRAULIC AB

    发明人： ANDERSSON BO ,  LUNDGREN BERTIL

    IPC分类号： F15B13/04 ,  E02F9/22 ,  F15B11/16

    CPC分类号： E02F9/2203 ,  B66C13/18 ,  B66F9/22 ,  E02F9/2217 ,  E02F9/2267 ,  F15B11/165 ,  F15B13/0416 ,  F15B2211/20538 ,  F15B2211/253 ,  F15B2211/50536 ,  F15B2211/528 ,  F15B2211/57 ,  F15B2211/5753 ,  F15B2211/6051 ,  F15B2211/653 ,  Y10T137/0379 ,  Y10T137/7837

    摘要： A method and a device for controlling a load sensing hydraulic system, having a bypass valve (F), which is controlled by a pump pressure (P) and which when the hydraulic system is in operation diverts a pump flow of hydraulic fluid to a tank (E). The bypass valve (F) is pre-stressed towards a closed position and is put on load by the pump pressure (P) towards an open position against the action of the pre-stress. When the hydraulic system operates in a idling operation a first pre-stress element (I) limits the pre-stress to a first pressure and upon activation of the hydraulic system, a pressure regulator (10) increases the pre-stress to a second, substantially higher pressure by applying a hydraulic, constant second pre-stress force, that is added to the first pre-stress force and is substantially greater than this.

    摘要翻译： 一种用于控制负载感测液压系统的方法和装置，具有由泵压力（P）控制的旁通阀（F），并且当液压系统运行时，将液压流体的泵流转向罐 （E）。 旁通阀（F）被预压到关闭位置，并且通过泵压力（P）朝向打开位置施加负载以抵抗预应力的作用。 当液压系统在空转操作时，第一预应力元件（I）将预应力限制到第一压力，并且在启动液压系统时，压力调节器（10）将预应力增加到第二压力， 通过施加液压的恒定的第二预应力而施加显着更高的压力，其被添加到第一预应力并且基本上大于此。

    HOLDING MEANS FOR A HYDRAULIC COUPLING
    4.
    发明公开
    HOLDING MEANS FOR A HYDRAULIC COUPLING 审中-公开
    HALTEMITTELFÜREINE HYDRAULISCHE KUPPLUNG

    公开(公告)号：EP2084450A4

    公开(公告)日：2017-05-17

    申请号：EP07835443

    申请日：2007-11-16

    申请人： NORDHYDRAULIC AB

    发明人： LUNDGREN BERTIL

    IPC分类号： F16L55/24 ,  A01B59/06 ,  E02F3/36 ,  E02F3/627 ,  E02F9/22

    CPC分类号： E02F3/627 ,  E02F3/3654 ,  E02F9/2275

    摘要： A holding device to protect a movable connector part of a hydraulic system on work equipment, which mates with a fixed connector part of a hydraulic system on a work vehicle. The holding device is fixedly mounted on the work equipment and has recesses which receive and protect the hydraulic connections of the movable connector part when they are not engaged with the fixed connector part. The holding device may have a contact surface which mates with the hydraulic connectors of the movable part. The recess or recesses can receive a multipart hydraulic connector or a plurality of individual connectors. The holding device may include an electrical connector dummy for attachment to an electrical connector on the work equipment. A cover fits over the holding device when it is not engaged by a movable connector part; and it also mates with the fixed connector part when it is not engaged by the movable connector part.

    摘要翻译： 一种保持装置，用于保护工作装置上的液压系统的可移动连接器部分，该工作装置与工作车辆上的液压系统的固定连接器部分配合。 保持装置固定地安装在工作装置上并具有凹口，当它们不与固定的连接器部分接合时，所述凹口接收和保护可移动连接器部分的液压连接。 保持装置可具有与可移动部分的液压连接器配合的接触表面。 一个或多个凹部可以容纳多部分液压连接器或多个单独的连接器。 保持装置可以包括用于附接到工作设备上的电连接器的电连接器假体。 当保持装置未被可移动连接器部件接合时，盖子装配在保持装置上; 并且当其不与可动连接器部件接合时也与固定连接器部件配合。

    HYDRAULIC CONNECTION
    6.
    发明公开
    HYDRAULIC CONNECTION 审中-公开
    液压连接

    公开(公告)号：EP2084447A4

    公开(公告)日：2017-02-22

    申请号：EP07835452

    申请日：2007-11-19

    申请人： NORDHYDRAULIC AB

    发明人： LUNDGREN BERTIL

    IPC分类号： F16L37/084 ,  A01B59/06 ,  E02F3/36 ,  E02F3/627 ,  E02F9/22 ,  F16L3/00 ,  F16L39/02

    CPC分类号： E02F3/627 ,  E02F3/3654 ,  E02F9/2275 ,  F16L37/56

    摘要： For a hydraulic system of a work vehicle, a fixed connector part fixedly arranged thereon. A fixed connector part has a plurality of hydraulic couplings. A hydraulic work system of a work equipment has hydraulic couplings which are either a movable part having a plurality of hydraulic couplings or a plurality of individual hydraulic connections, each having a hydraulic coupling. The movable connector part is connectable to the fixed connector part by a locking device. The hydraulic couplings of the fixed connector part are constructed to be hydraulically coupled to the hydraulic couplings of the movable connector part and alternatively to the hydraulic couplings of the plurality of individual hydraulic couplings.

    VALVE FASTENING MEANS
    7.
    发明公开
    VALVE FASTENING MEANS 有权
    VENTILBEFESTIGUNGSMITTEL

    公开(公告)号：EP2304112A4

    公开(公告)日：2017-01-25

    申请号：EP09794724

    申请日：2009-06-22

    申请人： NORDHYDRAULIC AB

    发明人： LUNDGREN BERTIL

    IPC分类号： E02F9/22 ,  F16B3/00

    CPC分类号： E02F9/2267 ,  E02F3/3654 ,  E02F3/627 ,  E02F9/2275 ,  Y10T137/6851 ,  Y10T137/6892

    摘要： A valve fastening element (1) for attaching a hydraulic valve (2) to a tractor (13). The valve fastening element (1) includes a tractor part (1a) adapted to be attached on the tractor and a valve part (1b adapted for direct assembly of the valve (2), wherein the valve (2) includes at least two screw holes (10,11,12), each adapted to receive a screw (3,4,5). The valve part (1b) of the valve fastening element (1) includes at least two slits (6,7,8), of which at least a first slit (6,8) includes an opening (6a,8a) adapted to let the head of the screw pass, and all slits include a groove (6b,7,8b,8c) that is sufficiently narrow to prevent the head of the screw (3,4,5) from passing but sufficiently wide to allow the thread of the screw (3,4,5) to pass.

    摘要翻译： 一种用于将液压阀（2）附接到拖拉机（13）的阀紧固元件（1）。 阀紧固元件（1）包括适于附接在拖拉机上的拖拉机部分（1a）和适于直接组装阀（2）的阀部分（1b），其中阀（2）包括至少两个螺孔 （10,11,12），每个适于接纳螺钉（3,4,5），阀紧固元件（1）的阀部分（1b）包括至少两个狭缝（6,7,8），其中 所述至少第一狭缝（6,8）包括适于使所述螺钉头部通过的开口（6a，8a），并且所有狭缝包括足够窄以防止的凹槽（6b，7,8b，8c） 螺杆（3,4,5）的头部通过但足够宽以允许螺钉（3,4,5）的螺纹通过。

    VALVE DEVICE
    8.
    发明公开
    VALVE DEVICE 审中-公开
    VENTILVORRICHTUNG

    公开(公告)号：EP2446150A4

    公开(公告)日：2014-03-19

    申请号：EP10792419

    申请日：2010-06-23

    申请人： NORDHYDRAULIC AB

    发明人： ANDERSSON BO ,  LUNDGREN BERTIL

    IPC分类号： F15B13/04 ,  E02F9/22

    CPC分类号： E02F9/2267 ,  E02F9/2232 ,  F15B11/05 ,  F15B11/055 ,  F15B13/0417 ,  F15B2211/20553 ,  F15B2211/30505 ,  F15B2211/30535 ,  F15B2211/5756 ,  F15B2211/6051 ,  F15B2211/6052 ,  F15B2211/654

    摘要： The invention relates to a hydraulic valve device (1) including a high pressure connection (P′) and a low pressure connection (T′); at least one motor port connection (A′) that is connectable to a motor port (A) on a hydraulic motor (M), preferably a hydraulic cylinder; a flow control valve (F), which is arranged between the high pressure connection (P′) and the motor port connection (A′) and which includes a flow opening (18) that is adjustable between a fully closed position and a fully open position; and a pressure regulator (R) that is arranged between the high pressure connection (P′) and the flow regulating valve (F), wherein a regulator pressure (PR) that acts at a first connection point (3) between the pressure regulator (R) and the flow regulating valve (F) acts on the pressure regulator (R) via a first control conduit (4) to close the same. A second control conduit (5) including a first restrictor (6), is arranged to convey a load pressure (PL) that acts at the motor port connection (A′) from a second connection point (7) positioned between the flow regulating valve (F) and the motor port connection (A′) via the first restrictor (6) to a third connection point (8) at which a first control pressure (Pc) acts and which third connection point (8) is connected to the pressure regulator (R) to act on the same in the opening direction by means of said first control pressure (Pc), wherein the third connection point (8) is connected to the low pressure connection (T), via an adjustable second restrictor (9).

    摘要翻译： 本发明涉及一种包括高压连接（P'）和低压连接（T'）的液压阀装置（1）。 至少一个可连接到液压马达（M）上的马达端口（A）的马达端口连接件（A'），优选地为液压缸; 流量控制阀（F），其布置在所述高压连接部（P'）和所述马达端口连接部（A'）之间，并且包括流动开口（18），所述流动开口（18）在完全关闭位置和完全打开 位置; 以及设置在所述高压连接部（P'）和所述流量调节阀（F）之间的压力调节器（R），其中，调节器压力（PR）作用在所述压力调节器 R）和流量调节阀（F）经由第一控制管道（4）作用在压力调节器（R）上以将其关闭。 包括第一限流器（6）的第二控制管道（5）被布置成将位于所述马达端口连接（A'）处的作用力的负载压力（PL）从位于所述流量调节阀 （F）和所述马达端口连接（A'）经由所述第一限制器（6）连接到第三连接点（8），在所述第三连接点处，第一控制压力（Pc）起作用，并且所述第三连接点（8） 调节器（R）通过所述第一控制压力（Pc）在打开方向上作用在其上，其中第三连接点（8）通过可调节的第二限制器（9）连接到低压连接件（T） ）。