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    PRESSURE RETAINING VALVE
    1.
    发明申请
    PRESSURE RETAINING VALVE 审中-公开
    压力保持阀

    公开(公告)号：US20160195114A1

    公开(公告)日：2016-07-07

    申请号：US14912947

    申请日：2014-08-14

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Gerd SCHNEIDER ,  Markus BILL

    IPC: F15B13/04 ,  F16K37/00

    CPC classification number: F15B13/0401 ,  F15B13/01 ,  F15B2013/0409 ,  F16K37/0041

    Abstract: A load-holding valve (1) having at least one main control piston (39) which is guided longitudinally displaceably in a single-piece or multiple-piece valve housing (29) and a non-return piston (43), wherein, in switching positions, in the form of a load-holding position a fluid-conducting connection between at least two connection points (37, 21) is shut off by means of the two pistons (39, 43), of which connection points (37, 21) one (37) serves to feed or discharge media and the other (21) leads to a hydraulic consumer, in the form of a load-raising position the two pistons (43) move relative to one another into a release position, in which the connection between the medium feed (37) and the consumer is established, and in the form of a load-reducing position the two pistons (39, 43) assume a predefinable spacing from one another in such a way that the connection between the medium discharge (37) and the consumer is established, is characterized in that there is a monitoring device (75) which determines the individual switching positions of said pistons (39, 43), in order to ensure reliable functioning of the load-holding valve (1).

    Abstract translation: 一种具有至少一个主控制活塞（39）的负载保持阀（1），所述至少一个主控制活塞（39）在单件或多件式阀壳体（29）和非止回活塞（43）中纵向可移位地被引导，其中， 切换位置以负载保持位置的形式，通过两个活塞（39,43）切断至少两个连接点（37,21）之间的流体传导连接，其中连接点（37,31） 21）一个（37）用于进料或排出介质，而另一个（21）引导到液压消耗器，以负载提升位置的形式，两个活塞（43）相对于彼此移动到释放位置， 其中介质进料（37）和消耗者之间的连接被建立，并且以减重位置的形式，两个活塞（39,43）以彼此之间的连接的方式呈现可预定的间隔， 中等放电（37）和消费者建立，其特征在于有一个监控装置 75），其确定所述活塞（39,43）的各个切换位置，以确保负载保持阀（1）的可靠运行。

    PILOT-OPERATED DIRECTIONAL CONTROL VALVE
    2.
    发明申请
    PILOT-OPERATED DIRECTIONAL CONTROL VALVE 审中-公开

    公开(公告)号：US20170321820A1

    公开(公告)日：2017-11-09

    申请号：US15520107

    申请日：2015-10-14

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Frank SCHULZ ,  Markus BILL

    IPC: F16K31/40

    CPC classification number: F16K31/408 ,  F16K31/406

    Abstract: The invention relates to a pilot-controlled directional control valve, in particular a directional poppet valve, comprising a valve housing (10), at least three fluid connection points (12, 14, 16) with a main control stage (18) and a pilot control stage, characterized in that a further fluid-controlling intermediate stage (22) is arranged between the main control stage (18) and the pilot control stage (20) and that the main control stage (18) comprises a longitudinally movable main control piston (24) and the pilot control stage a longitudinally movable pilot control piston (26).

    VALVE
    4.
    发明申请
    VALVE 有权
    阀

    公开(公告)号：US20160116075A1

    公开(公告)日：2016-04-28

    申请号：US14893094

    申请日：2014-05-02

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Olaf PIPPEL ,  Frank SCHULZ ,  Markus BILL

    IPC: F16K27/00 ,  F16B21/18

    CPC classification number: F16K27/003 ,  F16B21/12 ,  F16B21/125 ,  F16B21/18 ,  F16B21/183 ,  F16B21/186 ,  F16K27/041 ,  F16K27/065 ,  F16K27/08 ,  F16K27/12

    Abstract: The invention relates to a valve, in particular for use in hydraulic circuits, comprising a valve body (4) which is designed as a cartridge, can be integrated into a housing (6) that has fluid connections (8), and can be fixed in the housing by means of a securing device (20, 26, 28). The invention is characterized in that the securing device has at least one blocking element (20) in the form of a separate component which can be found between the valve body (4) and the housing (6), said blocking element having blocking surfaces that can be moved relative to the longitudinal axis (18) of the valve body (4) between an assembly position which allows the valve body (4) to be inserted into the housing (6) and a blocking position in which the blocking surfaces secure the valve body in an assembly position preferably with zero backlash by bearing against retaining surfaces (26, 28) of the housing (6) and the valve body (4).

    Abstract translation: 本发明涉及一种阀门，特别是用于液压回路中的阀门，其特征在于包括被设计为卡盘的阀体（4），可以集成到具有流体连接件（8）的壳体（6）中，并可固定 通过固定装置（20,26,28）在壳体内。 本发明的特征在于，固定装置具有至少一个分离部件形式的阻挡元件（20），其可以在阀体（4）和壳体（6）之间找到，所述阻挡元件具有阻挡表面， 可以相对于阀体（4）的纵向轴线（18）在允许阀体（4）插入壳体（6）的组装位置和阻塞位置之间移动 阀体处于组装位置，优选地通过轴承抵靠壳体（6）和阀体（4）的保持表面（26,28）而具有零间隙。

    DEVICE AND VALVE FOR FLOW FORCE COMPENSATION
    6.
    发明申请
    DEVICE AND VALVE FOR FLOW FORCE COMPENSATION 有权

    公开(公告)号：US20210089061A1

    公开(公告)日：2021-03-25

    申请号：US16954292

    申请日：2018-12-17

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Markus BILL ,  Frank SCHULZ

    IPC: G05D16/10 ,  F16K11/07

    Abstract: 1. Device and valve for flow force compensation. 2. A device comprising at least one regulating piston (12), which is guided longitudinally movable in a housing (10) having at least two ports (A, P, T) for fluid, and which interacts with a control edge (56), following a step function, of the housing (10) at a pressure supply port (P), which supplies another port (A) serving as utility port in regulating positions of the regulating piston (12) with fluid, the pressure of which can be preset, via a fluid connection and thereby aims at pulling towards a closed position blocking this fluid connection due to occurring flow forces, wherein the regulating piston (12) has a change of shape (60) from its general outer basic shape in the area of the control edge (56) of the housing (10) for a flow force compensation such that a flow contact surface for fluid is provided, which causes a compensating force acting against the flow force to be introduced into the regulating piston (12), which force aims at pulling the regulating piston (12) into an open position opposite from the blocked position, is characterized in that the change of shape (60) also follows a step function, the function graph of which has at least one step more than the number of steps required to form the control edge (56).

    PRESSURE-REGULATING VALVE
    7.
    发明申请
    PRESSURE-REGULATING VALVE 审中-公开

    公开(公告)号：US20180039291A1

    公开(公告)日：2018-02-08

    申请号：US15554452

    申请日：2016-05-06

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Maximilian Felix HESS ,  Markus BILL

    IPC: G05D16/10 ,  F15B13/02 ,  F16K17/04

    Abstract: A pressure-regulating valve having a valve piston (I0) which is subjected to the action of an energy store and which is guided in longitudinally displaceable fashion in a valve housing (12), which valve housing has ports such as a supply port (14), a utility port (16) and a tank port (18), which ports can be actuated, by way of a control part (20) which closes with a sealing action, such that, in the case of a fluidic connection from the supply port to the utility port, a pressure reduction function is realized, and in the case of a fluidic connection from the utility port to the tank port, a pressure-limiting function is realized, characterized in that the control part (20) has a control rod (22) with two control bodies (24, 26) held spaced apart from one another, of which control bodies one (24) controls at least the fluidic connection between supply port (14) and utility port (16), and the other control body (26) controls at least the fluidic connection between utility port (16) and tank port (18).

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