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    Valve
    1.
    发明申请
    Valve 有权

    公开(公告)号：US20250163941A1

    公开(公告)日：2025-05-22

    申请号：US18843627

    申请日：2024-03-01

    Applicant: HYDAC Fluidtechnik GmbH

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

    IPC: F15B13/043 ,  F16K31/42

    Abstract: The disclosure relates to a valve, e.g., a proportional valve, comprising a main piston for actuating a main volumetric flow and a pilot piston for actuating a pilot volumetric flow. The main piston and the pilot piston are guided in a valve housing in a longitudinally movable manner, and the pilot piston can be actuated using a magnetic device. The position of the main piston can be set using the pilot piston which, based on the movement position thereof, signals the fluid pressure acting on the main piston into a pilot chamber via a fluidic connection or cuts of the fluid connection and connects the pilot chamber to a tank or low-pressure side via another fluidic connection into which a valve is introduced that closes in a leak-proof manner as soon as a fluidic connection is produced between the main piston and the pilot chamber.

    Valve
    2.
    发明授权
    Valve 有权

    公开(公告)号：US10544869B2

    公开(公告)日：2020-01-28

    申请号：US15554239

    申请日：2016-01-29

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Peter Bruck

    IPC: F15B13/04 ,  F16K11/07 ,  F16K31/06 ,  F16K29/00 ,  F15B13/044

    Abstract: A valve, in particular a proportional pressure regulating valve, has a valve piston (12) longitudinally movable in a valve housing (10) for alternately releasing and connecting a user connection (A) to a pressure supply port (P) or a tank connection (T). The valve piston can be actuated by an actuating magnet (14) that produces a dither signal during operation. The valve piston (12) reaches a floating position within the valve housing (10) by a hydraulic lift limitation for the receipt of the dither signal.

    Proportional pressure-regulating valve
    4.
    发明授权
    Proportional pressure-regulating valve 有权

    公开(公告)号：US09733651B2

    公开(公告)日：2017-08-15

    申请号：US14891691

    申请日：2014-04-08

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Martin Grill ,  Peter Bruck

    IPC: F16K11/07 ,  G05D16/20

    CPC classification number: G05D16/2013

    Abstract: A proportional pressure-regulating valve (10) for actuating a first fluid connection (f1) from a working connection (A) to a tank connection (T) and a second fluid connection (f2) from a supply connection (P) to the working connection (A), includes a regulating piston (14) guided movably in a valve housing (12). The regulating piston opens the first fluid connection (f1) and closes the second fluid connection (f2) when in a first position, and closes the first fluid connection (f1) and opens the second fluid connection (f2) when a second position. The regulating piston (14) can be displaced from a first position into a third position when the first fluid connection (f1) is open by the total differential pressure produced when fluid flows through. When the regulating piston (14) is in the third position, the first fluid connection (f1) is opened with an enlarged opening cross section compared to the first position, and the second fluid connection (f2) remains closed.

    SYSTEM FOR IMPROVING THE ENERGY EFFICIENCY IN HYDRAULIC SYSTEMS, PISTON ACCUMULATOR AND PRESSURE ACCUMULATOR PROVIDED FOR SUCH A SYSTEM
    6.
    发明申请
    SYSTEM FOR IMPROVING THE ENERGY EFFICIENCY IN HYDRAULIC SYSTEMS, PISTON ACCUMULATOR AND PRESSURE ACCUMULATOR PROVIDED FOR SUCH A SYSTEM 有权
    提高液压系统能源效率的系统，为这种系统提供的活塞式累加器和压力蓄能器

    公开(公告)号：US20140318115A1

    公开(公告)日：2014-10-30

    申请号：US13261904

    申请日：2012-12-03

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Frank Schulz ,  Peter Bruck

    IPC: F15B21/14 ,  E02F9/22 ,  F15B1/24

    CPC classification number: F15B21/14 ,  E02F9/2217 ,  F15B1/024 ,  F15B1/24 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/413 ,  F15B2201/51 ,  F15B2211/20569 ,  F15B2211/212 ,  F15B2211/625 ,  F15B2211/6309 ,  F15B2211/633 ,  F15B2211/6336 ,  F15B2211/7052 ,  F15B2211/88 ,  Y02E60/15

    Abstract: The invention relates to a system for improving the energy efficiency in hydraulic systems, comprising an actuator (49) 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, when in an operating state of the actuator (49), can be charged by the same for storing energy and, when in a different operating state, can be discharged for delivering energy to the actuator (49). The invention is characterized in that at least one hydraulic accumulator in the form of an adjustable hydropneumatic piston accumulator (1) is provided, in which a 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 actuator (49) as a function of the pressure level that prevails respectively on the gas side of the piston accumulator (1) and on the actuator (49).

    Abstract translation: 本发明涉及一种用于提高液压系统能量效率的系统，该系统包括致动器（49），该致动器在操作状态下作为液压能量消耗器运行，并且在不同的运行状态下作为液压能量发生器， 以及液压蓄能器（1），当处于致动器（49）的操作状态时，液压蓄能器（1）能够通过其被充电以存储能量，并且当处于不同的操作状态时，可以将其释放以向致动器（49 ）。 本发明的特征在于，提供至少一个液压蓄能器（1）的可调式液压活塞蓄能器（1），其中a形成有多个与有效表面相邻的压力室（19,21,23,25） 在蓄能器活塞（5）的流体侧上具有不同尺寸的阀（11,13,15,17），并且提供一个调节装置（51），其连接选定的压力室（19,21,23,25）或多个 （1）的活塞蓄能器（1）的选定的压力室（19,21,23,25）与致动器（49）之间的压力水平的函数分别对应于活塞蓄能器（1）的气体侧上的压力水平 致动器（49）。

    Valve, in particular pilot-operated proportional directional poppet valve
    7.
    发明授权
    Valve, in particular pilot-operated proportional directional poppet valve 有权

    公开(公告)号：US09777844B2

    公开(公告)日：2017-10-03

    申请号：US14417919

    申请日：2013-07-18

    Applicant: Hydac Fluidtechnik GmbH

    Inventor： Peter Bruck ,  Markus Bill

    IPC: F16K31/00 ,  F16K1/52 ,  F16K31/40 ,  F15B13/01

    CPC classification number: F16K1/526 ,  F15B13/015 ,  F16K31/408 ,  Y10T137/7771

    Abstract: A valve, in particular a pilot-operated proportional directional poppet valve, has a valve housing (7) with a fluid inlet (21) and a fluid outlet (23). The fluid stream between the fluid inlet (21) and the fluid outlet (23) is adjustable by a main piston (27). A pilot valve chamber (37) provided on a rear face (29) of the main piston (27) has a pilot valve closing member (33) movable by an actuating device (69). By closing member (33) the fluid stream between the pilot valve chamber (37) and the fluid outlet (23) can be adjusted. An inlet aperture (3) is arranged between the fluid inlet (21) and the pilot valve chamber (37). A maximum volumetric flow controller (5) is in the main piston (27) in an outflow between the pilot valve chamber (37) and the fluid outlet (23).

    System for charging and discharging at least one hydraulic accumulator
    9.
    发明授权
    System for charging and discharging at least one hydraulic accumulator 有权

    公开(公告)号：US11313387B2

    公开(公告)日：2022-04-26

    申请号：US17267554

    申请日：2019-07-30

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Peter Bruck ,  Christian Stauch

    IPC: F15B1/027 ,  F15B1/033 ,  F15B21/14

    Abstract: A system for charging and discharging at least one hydraulic accumulator (10) can be connected to a valve control device (12). The valve control device (12) has at least one logic valve (14). A shuttle valve (16) and a hydraulically operated switching valve (18) are also provided. 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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