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    System for improving the energy efficiency in hydraulic systems
    11.
    发明授权
    System for improving the energy efficiency in hydraulic systems 有权

    公开(公告)号：US10323657B2

    公开(公告)日：2019-06-18

    申请号：US13261912

    申请日：2012-11-09

    Applicant: Hydac Fluidtechnik GmbH

    Inventor： Frank Schulz ,  Peter Bruck

    IPC: F15B1/02 ,  F15B3/00 ,  F15B21/14 ,  F15B11/032 ,  F15B11/072 ,  F15B1/24

    Abstract: A system for hydraulic systems includes a working cylinder (58) which operates as a consumer of hydraulic energy or as a generator of hydraulic energy. A hydraulic accumulator (1) can be charged by the working cylinder for storing energy and can be discharged for delivering energy to the working cylinder (58). One hydraulic accumulator is provided in the form of an adjustable hydropneumatic piston accumulator (1), in which with a plurality of pressure chambers (19, 21, 23, 25) adjoining effective surfaces (11, 13, 15, 17) of different sizes are on the fluid side of the accumulator piston (5). An adjusting arrangement (51) connects a selected pressure chamber (19, 21, 23, 25) or a plurality of selected pressure chambers (19, 21, 23, 25) of the piston accumulator (1) to the working cylinder (58) as a function of the pressure level that prevails respectively on the gas side of the piston accumulator (1) and on the working cylinder (58).

    VALVE FOR VALVE ASSEMBLY
    13.
    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
    14.
    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
    15.
    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).

    Valve device
    16.
    发明授权
    Valve device 有权

    公开(公告)号：US10146235B2

    公开(公告)日：2018-12-04

    申请号：US14912180

    申请日：2014-07-05

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Peter Bruck ,  Frank Schulz

    IPC: F16K31/06 ,  G05D16/20

    Abstract: A proportional pressure regulating valve has a valve piston (12) longitudinally movable in a valve housing (10) and connecting a utility connection (A) to a pressure supply connection (P) or to a tank or return flow connection (T) dependent on the displacement position of the valve piston. The valve piston is actuated by an actuation magnet (48) that can be supplied with current. A control device (50) is between the valve piston (12) and the actuation magnet (48), and allows the valve piston (12) to become pressureless on the valve piston side (52) facing the actuation magnet (48). The valve piston (12) is displaced in the direction of the actuation magnet (48) under the supply and/or utility connection pressure when the actuation magnet is not actuated.

    Control device for selectively fluidically connecting and disconnecting fluid connection points
    18.
    发明授权
    Control device for selectively fluidically connecting and disconnecting fluid connection points 有权

    公开(公告)号：US09810337B2

    公开(公告)日：2017-11-07

    申请号：US14913400

    申请日：2014-08-12

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Gerd Schneider ,  Peter Bruck

    IPC: F16K11/07 ,  F16K27/02 ,  F16K31/06

    CPC classification number: F16K27/029 ,  F16K31/0613 ,  Y10T137/8671

    Abstract: A control device selectively fluidically connects and disconnects fluid connection points (A, P, T) by a valve (5), which controls fluid-conducting connection channels (55, 57, 59) extending between the connection points (A, P, T). The connection channels are arranged in a control block (3), into which the valve (5) is at least partially inserted. Proceeding from the respective fluid connection points (A, P, T), the connection channels (55, 59, 57) connected to the fluid connection points extend in parallel to each other until the connection channels lead into a respective control chamber (49; 53, 51). The valve (5) is retained in a receptacle (39) separating two adjacently arranged control chambers (49, 51) from each other.

    SYSTEM FOR IMPROVING THE ENERGY EFFICIENCY IN HYDRAULIC SYSTEMS
    19.
    发明申请
    SYSTEM FOR IMPROVING THE ENERGY EFFICIENCY IN HYDRAULIC SYSTEMS 审中-公开
    提高液压系统能源效率的系统

    公开(公告)号：US20150152889A1

    公开(公告)日：2015-06-04

    申请号：US13261912

    申请日：2012-11-09

    Applicant: Hydac Fluidtechnik GmbH

    Inventor： Frank Schulz ,  Peter Bruck

    IPC: F15B3/00 ,  F15B11/072 ,  F15B11/032

    CPC classification number: F15B3/00 ,  F15B1/024 ,  F15B1/24 ,  F15B11/032 ,  F15B11/072 ,  F15B21/14 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/41 ,  F15B2211/216 ,  F15B2211/30525 ,  F15B2211/5152

    Abstract: The invention relates to a system for improving the energy efficiency in hydraulic systems, comprising at least one working cylinder (58) which, in an operating state, operates as a consumer of hydraulic energy and, in a different operating state, as a generator of hydraulic energy, and a hydraulic accumulator (1) which, in an operating state of the working cylinder (58), can be charged by the same for storing energy and, in a different operating state, can be discharged for delivering energy to the working cylinder (58). The invention is characterized in that at least one hydraulic accumulator is provided in the form of an adjustable hydropneumatic piston accumulator (1), in which are formed a plurality of pressure chambers (19, 21, 23, 25) which adjoin effective surfaces (11, 13, 15, 17) of different sizes on the fluid side of the accumulator piston (5), and an adjusting arrangement (51) is provided which connects a selected pressure chamber (19, 21, 23, 25) or a plurality of selected pressure chambers (19, 21, 23, 25) of the piston accumulator (1) to the working cylinder (58) as a function of the pressure level that prevails respectively on the gas side of the piston accumulator (1) and on the working cylinder (58).

    Abstract translation: 本发明涉及一种用于提高液压系统能量效率的系统，该系统包括至少一个工作缸（58），其在操作状态下作为液压能量的消耗者运行，并且在不同的运行状态下作为发电机 液压蓄能器和液压蓄能器（1），其在工作缸（58）的操作状态下能够通过其被充电以存储能量，并且在不同的操作状态下可以排出以将能量传递到工作 气缸（58）。 本发明的特征在于，至少一个液压蓄能器以可调节的液压气动活塞蓄能器（1）的形式提供，其中形成有多个与有效表面相连的压力室（19,21,23,25） ，13,15,17），并且提供一种调节装置（51），其连接选定的压力室（19,21,23,25）或多个 活塞蓄能器（1）的选择压力室（19,21,23,25）作为分别在活塞蓄压器（1）的气体侧上和在活塞蓄压器（1）的压力水平上的压力水平的函数 工作缸（58）。

    Vavle
    20.
    发明公开
    Vavle 审中-公开

    公开(公告)号：US20240271642A1

    公开(公告)日：2024-08-15

    申请号：US18568969

    申请日：2022-06-07

    Applicant: HYDAC Fluidtechnik GmbH

    Inventor： Peter Bruck ,  Benjamin Röder ,  Markus Bill

    IPC: F15B13/044 ,  F15B13/043

    CPC classification number: F15B13/044 ,  F15B13/0433

    Abstract: The invention relates to a valve, in particular a proportional pressure regulating valve, comprising a valve housing (10) and a valve piston (12) which is arranged in the valve housing in a longitudinal a movable manner and which can be actuated by means of an actuation magnet (14) so as to produce either a fluidic connection between a pressure supply connection (P) and a load connection (A) or between the load connection (A) and a return connection (T) in the valve housing (10), wherein the valve piston (12) is permanently fluidically connected to the return connection (T) at the opposing end faces (44, 46) of the valve piston. The invention is characterized in that the valve piston (12) has a pressure-active measuring surface (50) in the region of the load connection (A), said pressure-active measuring surface providing the respective fluid pressure at the load connection (A) as a counterforce to the actuation force of the actuation magnet (14) when the actuation magnet (14) is energized in order to produce a fluidic connection between the pressure supply connection (P) and the load connection (A).

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