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    PILOT-OPERATED DIRECTIONAL CONTROL VALVE
    32.
    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 DEVICE
    35.
    发明申请
    VALVE DEVICE 审中-公开
    阀门设备

    公开(公告)号：US20160195879A1

    公开(公告)日：2016-07-07

    申请号：US14912180

    申请日：2014-07-05

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Peter BRUCK ,  Frank SCHULZ

    IPC: G05D16/20

    CPC classification number: G05D16/2013 ,  F16K31/0613 ,  Y10T137/86622 ,  Y10T137/86694 ,  Y10T137/86702 ,  Y10T137/8671

    Abstract: The invention relates to a valve device, in particular in the form of a proportional pressure regulating valve, comprising a valve piston (12) which is guided in a longitudinally movable manner in a valve housing (10) and which connects a utility connection (A) to a pressure supply connection (P) and to a tank or return flow connection (T) dependent on the displacement position of the valve piston, and can be actuated by means of an actuating device (48), in particular in the form of an actuation magnet (28) that can be supplied with current. The valve device is characterized in that a control device (50) is provided between the valve piston (12) and the actuating device (48), said control device allowing the valve piston (12) to become pressureless on the valve piston side (52) facing the actuating device (48) in the direction of the tank or return flow connection (T) such that the valve piston (12) is displaced in the direction of the actuating device (48) under the supply and/or utility connection pressure, which can be actuated during operation, when the actuating device is not actuated.

    Abstract translation: 本发明涉及一种阀门装置，特别是比例压力调节阀的形式，包括阀活塞（12），阀活塞（12）以可纵向移动的方式被引导到阀壳体（10）中并连接有效连接件 ）到压力供应连接（P）以及取决于阀活塞的位移位置的罐或回流连接（T），并且可以通过致动装置（48）致动，特别是以 可以提供电流的致动磁体（28）。 阀装置的特征在于，在阀活塞（12）和致动装置（48）之间设置有控制装置（50），所述控制装置允许阀活塞（12）在阀活塞侧（52）上变得无压力 ）沿罐的方向面对致动装置（48）或返回流动连接（T），使得阀活塞（12）在供应和/或公用设施连接压力下沿致动装置（48）的方向移位 ，其可在操作期间致动，当致动装置未被致动时。

    VALVE FOR VALVE ASSEMBLY
    36.
    发明申请
    VALVE FOR VALVE ASSEMBLY 有权
    阀组件阀

    公开(公告)号：US20150107699A1

    公开(公告)日：2015-04-23

    申请号：US13261975

    申请日：2013-05-15

    Applicant: Hydac Fluidtechnik GmbH

    Inventor： Philipp Hilzendegen ,  Peter Bruck ,  Dominique Dehlinger

    IPC: F15B11/16 ,  F15B13/06

    CPC classification number: F15B11/166 ,  F15B11/0423 ,  F15B13/024 ,  F15B13/06 ,  F15B2013/004 ,  F15B2211/20538 ,  F15B2211/30535 ,  F15B2211/3054 ,  F15B2211/30595 ,  F15B2211/50527 ,  F15B2211/50536 ,  F15B2211/6052 ,  F15B2211/6057 ,  F15B2211/7058 ,  Y10T137/2589 ,  Y10T137/777

    Abstract: The invention relates to a valve (18) for a valve assembly (10) for regulating the pressure of a fluid guided in a hydraulic system for supplying pressure to at least one hydraulic consumer (12a, 12b), comprising a pilot control stage (48) and a main control stage (38) for at least partially clearing or blocking a fluid path from a supply connection (P) to an outflow connection (T), a relief stage (54) for pressure relief of a third chamber arranged between the pilot control stage (48) and the main control stage (38). The relief stage (54) compares the existing load pressure at a load terminal (LS) dedicated to the at least one hydraulic consumer (12a, 12b) with the outflow pressure at the outflow connection (T), clearing the pressure relief if both pressures are approximately the same or identical, which valve is characterized in that the relief stage (54) can be directly connected to the load terminal (LS) and can be charged with load pressure.

    Abstract translation: 本发明涉及一种用于阀组件（10）的阀门（18），用于调节在用于向至少一个液压消耗器（12a，12b）供应压力的液压系统中引导的流体的压力，包括先导控制级 ）和用于至少部分地清除或阻挡从供应连接（P）到流出连接（T）的流体路径的主控制台（38），用于第三室的压力释放的释放级（54） 先导控制级（48）和主控级（38）。 释放级（54）将专用于至少一个液压消耗器（12a，12b）的负载端子（LS）处的现有负载压力与流出连接件（T）处的流出压力进行比较，如果两个压力 大致相同或相同，该阀的特征在于，溢流级（54）可以直接连接到负载端子（LS）并且可以被负载压力充电。

    Pilot-Control Electromagnetic Valve
    37.
    发明申请
    Pilot-Control Electromagnetic Valve 有权

    公开(公告)号：US20250137548A1

    公开(公告)日：2025-05-01

    申请号：US18836960

    申请日：2023-01-10

    Applicant: HYDAC Fluidtechnik GmbH

    Inventor： Peter Bruck ,  Christian Groh ,  Frank Schulz ,  Andre Jäger ,  Lennard Günther ,  Jan Frederik Lübbert

    IPC: F16K31/40

    Abstract: The disclosure relates to a valve, comprising a main plunger for controlling a main volume flow and comprising a pilot-control plunger for controlling a pilot-control volume flow. The main and pilot-control plungers are longitudinally moveably guided in a valve housing and the pilot-control plunger can be actuated by a magnetic device. The position of the main plunger can be adjusted by the pilot-control plunger in that a fluid pressure at the main plunger is communicated, via a fluid connection, into the pilot control chamber containing the pilot-control piston, which keeps the main plunger in its closed position blocking the main volume flow when the magnetic device is not actuated. When the magnetic device is actuated, the pilot-control plunger moves into a position in which the fluid pressure falls in the pilot-control chamber until the main plunger moves into an open position controlling the main volume flow.

    Pressure compensator valve
    39.
    发明授权
    Pressure compensator valve 有权

    公开(公告)号：US11268544B2

    公开(公告)日：2022-03-08

    申请号：US16643892

    申请日：2018-09-05

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Peter Bruck ,  Frank Schulz

    IPC: F15B13/04 ,  B66F9/22 ,  F15B11/05 ,  F15B13/00

    Abstract: A valve, in particular for use as a pressure compensator or maintenance-type component (38) in hydraulically actuated hoisting devices (2), has a valve housing (54) with a control port (40), a fluid inlet (64) and a fluid outlet (66). A regulating piston (68) is longitudinally displaceably in the valve housing (54) and acts against an energy storage device (70) in the form of a compression spring, bringing the regulating piston (68) into positions forming a fluid-conveying connection between the fluid inlet (40) and the fluid outlet (66) or blocking this connection by a control pressure existing at the control port (40). A first orifice (88) in the regulating piston (68) connects the control port (40) to a receiving space (62) for the energy storage device (70) in a fluid-conveying manner. A second orifice (90) is in an intermediate part (72) in the valve housing (54). The receiving space (62) can be connected to a compensating chamber (92), which connected to the fluid outlet (66) in a fluid-conveying manner (98).

    SYSTEM FOR CHARGING AND DISCHARGING AT LEAST ONE HYDRAULIC ACCUMULATOR
    40.
    发明申请
    SYSTEM FOR CHARGING AND DISCHARGING AT LEAST ONE HYDRAULIC ACCUMULATOR 有权

    公开(公告)号：US20210317846A1

    公开(公告)日：2021-10-14

    申请号：US17267554

    申请日：2019-07-30

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Peter BRUCK ,  Christian STAUCH

    IPC: F15B1/033

    Abstract: A system for charging and discharging at least one hydraulic accumulator (10), which can be connected to a valve control device (12), wherein the valve control device (12) comprises at least one logic valve (14), is characterized in that a shuttle valve (16) and a switching valve (18) are also provided and the valves (14, 16, 18) are interconnected such that the hydraulically actuatable switching valve (18) compares the accumulator pressure (pA) to a minimum accumulator pressure (pA0) that can be adjusted via the control pressure setting of this switching valve (18).

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