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    Valve device
    11.
    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.

    SYSTEM FOR IMPROVING THE ENERGY EFFICIENCY IN HYDRAULIC SYSTEMS
    12.
    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）。

    DIRECTIONAL POPPET VALVE
    13.
    发明申请
    DIRECTIONAL POPPET VALVE 有权
    方向阀阀

    公开(公告)号：US20140352826A1

    公开(公告)日：2014-12-04

    申请号：US13261910

    申请日：2012-11-21

    Applicant: Hydac Fluidtechnik GmbH

    Inventor： Frank Schulz ,  Markus Bill

    IPC: F16K11/07

    CPC classification number: F16K11/07 ,  F15B13/0405 ,  F16K11/207 ,  Y10T137/86686 ,  Y10T137/86694 ,  Y10T137/86831 ,  Y10T137/87241

    Abstract: The invention relates to a directional poppet valve (10), comprising valve pistons (16-22) arranged in a valve housing (12) for controlling a plurality of fluid connections (A, B, P, T), wherein the positions of each of the valve pistons (16-22) in the valve housing (12) can be changed by means of at least one actuating device, and wherein the fluid connections (A, B, P, T) are connected to one another or separated from one another alternately depending on the position of the valve pistons (16-22). The invention is characterised in that the valve pistons (16-22) are arranged inline along at least one axis (R), consecutively and/or at least such as to partially interengage, in the valve housing (12).

    Abstract translation: 本发明涉及一种方向提升阀（10），其包括布置在阀壳体（12）中的阀活塞（16-22），用于控制多个流体连接（A，B，P，T），其中每个 可以通过至少一个致动装置来改变阀壳体（12）中的阀活塞（16-22），并且其中流体连接件（A，B，P，T）彼此连接或分离 另一个取决于阀活塞（16-22）的位置。 本发明的特征在于，阀活塞（16-22）沿着至少一个轴线（R）在阀壳体（12）中连续地和/或至少等于部分地互相排列。

    Device and valve for flow force compensation
    14.
    发明授权
    Device and valve for flow force compensation 有权

    公开(公告)号：US11307599B2

    公开(公告)日：2022-04-19

    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: A device includes a regulating piston (12) guided longitudinally movably in a housing (10) and interacting with a control edge (56), at a pressure supply port (P) that supplies a utility port (A) in regulating positions of the regulating piston (12) with fluid. The pressure can be preset via a fluid connection, pulling the regulating piston towards a closed position blocking this fluid connection due to occurring flow forces. 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. A flow contact surface for fluid is provided causing a compensating force acting against the flow force to be introduced into the regulating piston (12), which flow force pulls the regulating piston (12) into an open position opposite from the blocked position. 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).

    Hydraulic hybrid system for rotatory applications
    15.
    发明授权
    Hydraulic hybrid system for rotatory applications 有权

    公开(公告)号：US10781833B2

    公开(公告)日：2020-09-22

    申请号：US13261913

    申请日：2012-11-09

    Applicant: Hydac Fluidtechnik GmbH

    Inventor： Frank Schulz ,  Peter Bruck

    IPC: F15B1/24 ,  F15B21/14 ,  B60K6/12 ,  F15B1/02 ,  F15B11/024 ,  F15B13/02

    Abstract: A hydraulic hybrid system for rotatory applications has an actuator (49, 91) in the form of a motor pump unit (91). The motor pump unit is coupled to a rotatory-operating device (94) and works as a consumer of hydraulic energy in one operating state of the device (94) and works as a producer of hydraulic energy in another operating state of the device (94). A hydraulic accumulator (1) can be charged by the motor pump unit (91) for energy storage in the one operating state and can be discharged for energy release to the motor pump unit (91) in the other operating state. The hydraulic accumulator is an adjustable hydropneumatic piston accumulator (1) in which a plurality of pressure chambers (19, 21, 23, 25) are delimited by active surfaces (11, 13, 15, 17) of different sizes on the fluid side of the accumulator piston (5). An adjusting arrangement (51) connects a selected pressure chamber (19, 21, 13, 25) or a plurality of selected pressure chambers (19, 21, 23, 25) of the piston accumulator (1) to the actuator (49, 91) depending on the prevailing pressure level on the gas side of the piston accumulator (1) and at the actuator (49, 91).

    HYDRAULIC HYBRID SYSTEM FOR ROTATORY APPLICATIONS
    18.
    发明申请
    HYDRAULIC HYBRID SYSTEM FOR ROTATORY APPLICATIONS 审中-公开
    用于旋转应用的液压混合系统

    公开(公告)号：US20140325974A1

    公开(公告)日：2014-11-06

    申请号：US13261913

    申请日：2012-11-09

    Applicant: Hydac Fluidtechnik GmbH

    Inventor： Frank Schulz ,  Peter Bruck

    IPC: F15B21/14 ,  F15B11/024 ,  F15B13/02 ,  F15B1/24

    Abstract: A hydraulic hybrid system for rotatory applications having an actuator (49, 91) in the form of a motor pump unit (91), which is coupled to a rotatory-operating device (94), such as a traction drive, and works as a consumer of hydraulic energy in one operating state of the device (94) and works as a producer of hydraulic energy in another operating state of the device (94), and having a hydraulic accumulator (1), which can be charged by the motor pump unit (91) for energy storage in the one operating state and can be discharged for energy release to the motor pump unit (91) in the other operating state, said hybrid system being characterised in that at least one hydraulic accumulator is provided in the form of an adjustable hydropneumatic piston accumulator (1) in which a plurality of pressure chambers (19, 21, 23, 25) that are delimited by active surfaces (11, 13, 15, 17) of different sizes on the fluid side of the accumulator piston (5) are formed and in that 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, 91) depending on the prevailing pressure level on the gas side of the piston accumulator (1) and at the actuator (49, 91).

    Abstract translation: 一种用于旋转应用的液压混合动力系统，其具有电动机泵单元（91）形式的致动器（49,91），其联接到诸如牵引驱动器的旋转操作装置（94），并且作为 在设备（94）的一个操作状态下消耗液压能量，并且在设备（94）的另一操作状态下作为液压能源的生产者，并且具有液压蓄能器（1），其可由电动泵 单元（91），用于在一个操作状态下的能量存储，并且在另一个操作状态下能够释放到电动泵单元（91）的能量释放，所述混合动力系统的特征在于至少一个液压蓄能器以形式 一个可调节的液压气动活塞蓄能器（1），其中多个压力室（19,21,23,25）由蓄能器的流体侧上的不同尺寸的活动表面（11,13,15,17）界定 形成活塞（5），并且具有调节装置 （51），其将活塞蓄能器（1）的选定的压力室（19,21,23,25）或多个选定的压力室（19,21,23,25）连接到致动器（49） 91），取决于活塞蓄压器（1）的气体侧和致动器（49,91）处的主要压力水平。

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