SYSTEM FOR CONTROLLING THE SUPPLY OF HYDRAULIC FLUID TO A WORK VEHICLE IMPLEMENT
    3.
    发明公开
    SYSTEM FOR CONTROLLING THE SUPPLY OF HYDRAULIC FLUID TO A WORK VEHICLE IMPLEMENT 审中-公开
    用于控制液压流体供应到工作车辆执行的系统

    公开(公告)号:EP3196482A3

    公开(公告)日:2017-10-25

    申请号:EP16203985.3

    申请日:2016-12-14

    IPC分类号: F15B11/02 A01B63/10 F15B11/05

    摘要: In one aspect, a system for controlling the supply of hydraulic fluid to an implement of a work vehicle may generally include a pump, a control valve coupled to the pump and first and second fluid lines provided in flow communication with output ports of the control valve. The system may also include a pressure control valve provided in flow communication with the second fluid line that is configured to regulate a fluid pressure of the hydraulic fluid being supplied to a hydraulic cylinder of the implement. Additionally, the system may include a bypass fluid line configured to provide a flow path for hydraulic fluid between the pump and the second fluid line that is independent of the control valve and a load sensing line configured to provide an indication of the fluid pressure of the hydraulic fluid being supplied to the hydraulic cylinder.

    摘要翻译: 在一个方面中,用于控制向作业车辆的工具供应液压流体的系统通常可以包括泵,联接到泵的控制阀以及与控制阀的输出端口流动连通地设置的第一和第二流体管线 。 该系统还可以包括压力控制阀,该压力控制阀设置成与第二流体管线流动连通,该压力控制阀构造成调节供应到工具的液压缸的液压流体的流体压力。 此外,该系统可以包括旁路流体管线,该旁路流体管线被配置成提供用于泵和独立于控制阀的第二流体管线之间的液压流体的流动路径,以及负载感测管线,其被配置为提供 液压流体被供应到液压缸。

    DUAL MODE FUEL PUMP SYSTEM
    5.
    发明公开
    DUAL MODE FUEL PUMP SYSTEM 审中-公开
    DOPPELMODUS-KRAFTSTOFFPUMPENSYSTEM

    公开(公告)号:EP3124797A1

    公开(公告)日:2017-02-01

    申请号:EP16181702.8

    申请日:2016-07-28

    发明人: McBRIEN, Gary M.

    摘要: A method and system providing a pressurized fluid includes a pump (114) having a pump inlet (113) and a pump outlet (115), the pump (114) to provide a fluid flow, a bypass path (119) to direct the fluid flow from the pump outlet (115) to the pump inlet (113), a load path (121) having a load path pressure, the load path (121) including: a fluid accumulator (160) to accumulate a fluid volume, and at least one load device (124), a bypass regulator valve (118) in fluid communication with the pump outlet (115), the bypass path (119), and the load path (121), and a controller (130) to direct the fluid flow to the load path (121) in response to the load path pressure being less than a low load path threshold pressure via the bypass regulator valve (118) and to direct the fluid flow to the bypass path (119) in response to the load path pressure being greater than a high load path threshold pressure via the bypass regulator valve (118).

    摘要翻译: 提供加压流体的方法和系统包括具有泵入口(113)和泵出口(115)的泵(114),用于提供流体流动的泵(114),用于引导流体的旁路路径(119) 从泵出口(115)到泵入口(113)的流动,具有负载路径压力的负载路径(121),负载路径(121)包括:累积流体体积的流体蓄积器(160) 至少一个负载装置(124),与泵出口(115)流体连通的旁路调节阀(118),旁路路径(119)和负载路径(121),以及控制器 响应于经由旁路调节阀(118)的负载路径压力小于低负载路径阈值压力,流体流向负载路径(121)并且响应于所述流量流动而将流体流引导到旁路路径(119) 旁路调节阀(118)的负载路径压力大于高负载路径阈值压力。

    VERFAHREN UND VORRICHTUNG ZUR STELLUNGSANZEIGE VON HYDRAULISCH BETÄTIGTEN ARMATUREN
    6.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR STELLUNGSANZEIGE VON HYDRAULISCH BETÄTIGTEN ARMATUREN 有权
    水硬性位置指示器的方法和装置操作阀

    公开(公告)号:EP2926014A2

    公开(公告)日:2015-10-07

    申请号:EP13789304.6

    申请日:2013-11-11

    IPC分类号: F15B15/28 F15B11/12 F15B19/00

    摘要: The invention relates to a method for displaying the position of a hydraulically actuated fitting, with a piston (121) in an actuating cylinder (1.2) for actuating the fitting (1.1), the piston being connected via two hydraulic lines (2, 3) to a changeover valve (7), by means of which the hydraulic lines can be switched between pressure-carrying feeding and de-pressurized return. The flow of the hydraulic fluid flowing through one of the hydraulic lines is converted into a plurality of electrical pulses, each of which corresponds to a predetermined volume unit of the hydraulic fluid. The changeover valve (7) is connected to supply lines (P, T) on which additional changeover valves for actuating additional fittings (In) are connected, and the changeover valves (7) are connected via a branch line (T1) to the common return line (T) provided for all fittings. A preload pressure higher than the pressure in the common return line (T) is maintained at each changeover valve (7) in the branch line (T1) to the return line (T). In addition, a program which processes the pulses from the flow sensor performs a learning cycle.

    HYDRAULIC SYSTEM AND ARRANGEMENT FOR AN ACCESS ARRANGEMENT
    8.
    发明公开
    HYDRAULIC SYSTEM AND ARRANGEMENT FOR AN ACCESS ARRANGEMENT 审中-公开
    一种访问安排的液压系统和安排

    公开(公告)号:EP2858618A1

    公开(公告)日:2015-04-15

    申请号:EP13803807.0

    申请日:2013-05-15

    申请人: Ricon Corp.

    IPC分类号: A61G3/06 F15B13/042 B60R3/02

    摘要: A hydraulic system for an access arrangement having a platform configured for movement between a deployed position and a stowed position, the hydraulic system including: at least one hydraulic power unit configured to urge hydraulic fluid through a hydraulic circuit; at least one hydraulic cylinder directly or indirectly connected to a portion of the platform and configured to urge the platform towards at least one of the stowed position and the deployed position, wherein the at least one hydraulic cylinder is in fluid communication with the hydraulic power unit; and a pressure regulating valve in a path between the at least one hydraulic power unit and the at least one hydraulic cylinder, wherein the pressure regulating valve is operable to prevent the at least one hydraulic cylinder from urging the platform to the stowed position if a load on the platform exceeds a specified threshold.

    摘要翻译: 一种用于进入装置的液压系统,该进入装置具有构造成用于在展开位置和收起位置之间运动的平台,该液压系统包括:至少一个液压动力单元,该液压动力单元构造成促使液压流体通过液压回路; 至少一个液压缸,所述至少一个液压缸直接或间接地连接至所述平台的一部分并且构造成朝向所述收起位置和所述展开位置中的至少一个推动所述平台,其中所述至少一个液压缸与所述液压动力单元 ; 以及位于所述至少一个液压动力单元与所述至少一个液压缸之间的路径中的压力调节阀,其中所述压力调节阀可操作以防止所述至少一个液压缸将所述平台推动至所述收起位置, 在平台上超过指定的阈值。

    Hydrostatisches Antriebsystem einer mobilen Arbeitsmaschine
    10.
    发明公开
    Hydrostatisches Antriebsystem einer mobilen Arbeitsmaschine 审中-公开
    移动机的静液压驱动系统

    公开(公告)号:EP2218675A3

    公开(公告)日:2013-10-16

    申请号:EP10000411.8

    申请日:2010-01-18

    申请人: STILL GmbH

    发明人: Schwab, Markus

    IPC分类号: B66F9/22 F15B11/028 F15B20/00

    摘要: Die Erfindung betrifft ein hydrostatisches Antriebssystem einer mobilen Arbeitsmaschine, insbesondere eines Flurförderzeugs, mit einer Pumpe (1) und mindestens einem von der Pumpe (1) versorgbaren Verbraucher einer Arbeitshydraulik (2), der mittels eines elektro-hydraulisch betätigbaren Steuerventils (11), insbesondere eines Wegeventils, betätigbar ist, wobei zur Betätigung des Steuerventils (11) mindestens ein elektrisch betätigbares Vorsteuerventil vorgesehen ist, das mit einer Steuerdruckversorgungsleitung (25) in Verbindung steht. Zur Lösung der Aufgabe, ein derartiges Antriebssystem zur Verfügung zu stellen, dass hinsichtlich des Energieverbrauchs und der Wärmebelastung des Druckmittels verbessert ist und einen geringen Bauaufwand aufweist, wird erfindungsgemäß vorgeschlagen, dass zur Erzeugung des in der Steuerdruckversorgungsleitung (25) anstehenden Steuerdrucks ein mit der Förderleitung (4) der Pumpe (1) in Verbindung stehendes Druckminderventil (26) vorgesehen ist.