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公开(公告)号：US20200347855A1
公开(公告)日：2020-11-05
申请号：US16643892
申请日：2018-09-05
Applicant: HYDAC FLUIDTECHNIK GMBH
Inventor： Peter BRUCK , Frank SCHULZ
Abstract: A valve, in particular for use as a pressure maintenance-type component (38) in hydraulically actuated hoisting devices (2), having a valve housing (54), which has a control port (40) plus a fluid inlet (64) and a fluid outlet (66), and having a regulating piston (68) longitudinally displaceably arranged in the valve housing (54), which regulating piston, against the action of an energy storage device (70), in particular in the form of a compression spring, brings the regulating piston (68) into at least one position forming a fluid-conveying connection between the fluid inlet (40) and the fluid outlet (66) or blocks this connection by means of a control pressure existing at the control port (40), is characterized in that a first diaphragm (88) is arranged in the regulating piston (68), which connects the control port (40) to a receiving space (62) for the energy storage device (70) in a fluid-conveying manner, and in that a second diaphragm (90) is arranged in an intermediate part (72) in the valve housing (54), by means of which 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).
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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
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。
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公开(公告)号：US20200378409A1
公开(公告)日：2020-12-03
申请号：US16970715
申请日：2019-02-07
Applicant: HYDAC FLUIDTECHNIK GMBH
Inventor： Peter BRUCK , Frank SCHULZ , Christian STAUCH , Jan LÜBBERT
IPC: F15B13/04 , F15B11/044
Abstract: A valve device having an inlet port (ZA) of an inlet side for supplying a hydraulic consumer with hydraulic fluid, wherein said hydraulic consumer can be connected to the inlet port (ZA), having an outlet port (AA) of an outlet side for discharging pressurized fluid from the connectable consumer, wherein, depending on the direction of actuation of this consumer, the inlet side becomes the outlet side and the outlet side becomes the inlet side, having a pressure supply port (P), and having a return port (T), is characterized in that a pressure regulating device is acting on the respective inlet side and a volume flow regulating device is acting on the respective outlet side.
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公开(公告)号：US20180173253A1
公开(公告)日：2018-06-21
申请号：US15579651
申请日：2016-06-02
Applicant: HYDAC FLUIDTECHNIK GMBH
Inventor： Frank SCHULZ , Michael REIK
IPC: G05D16/20
CPC classification number: G05D16/202 , G05D16/2033 , G05D16/2053
Abstract: The invention relates to a pressure control device, consisting of at least—two switching valves (10, 12), —a feedback control unit (14), —a sensor unit (20), and —a voltage supply unit (24).
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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).
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Patent Agency Ranking
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。
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公开(公告)号：US20230182706A1
公开(公告)日：2023-06-15
申请号：US17925389
申请日：2021-05-07
Applicant: HYDAC FLUIDTECHNIK GMBH
Inventor： Michael SCHEIDT , Frank SCHULZ , Christian STAUCH , Timo RINGLE
CPC classification number: B60T13/683 , B60T15/027 , B60T17/22 , F15B13/0405 , F15B2211/665 , F15B2211/6313 , F15B2211/30525
Abstract: A system for braking a displacement-controlled drive system (10), which can be driven by means of an inflow pressure and an outflow pressure at an inflow end and an outflow end thereof, respectively, for a motion, characterized in that by means of an electro-proportional adjustment of at least one valve element (26, 28, 126, 128) an outflow volume flow of the drive system (10) is controlled such that the outflow pressure is decoupled from the motion of the drive system and can be freely preset and coupled to the inflow pressure, which can in that way be lowered to the extent necessary for the motion of the drive system (10).
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公开(公告)号：US20190162319A1
公开(公告)日：2019-05-30
申请号：US16313537
申请日：2017-06-19
Applicant: HYDAC FLUIDTECHNIK GMBH
Inventor： Frank SCHULZ , Peter BRUCK
Abstract: A device, consisting of at least one control piston (12) which is longitudinally displaceable in a housing (10) comprising at least two connection points (P, A) for fluid, and which cooperates with a metering edge (34) of the housing (10) at a connection point (P), said point, in control positions of the control piston (12), supplying the other connection point (A) with fluid via a fluid connection, and which piston, as a result of occurring flow forces, tends to be drawn in the direction of a closing position which blocks one of these fluid connections. The device is characterized in that in order to compensate the flow force, the control piston (12) has, in the region of the control edge (34) of the housing (10), a shape modification (48) of its cylindrical exterior basic form (50), such that a flow contact surface (52) for fluid is created, which surface transfers a compensating force that acts against the flow force to the control piston (12) and that seeks to pull the control piston (12) into an opening position opposed to the closing position.
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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
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).
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公开(公告)号：US20170356554A1
公开(公告)日：2017-12-14
申请号：US15540280
申请日：2015-12-10
Applicant: HYDAC FLUIDTECHNIK GMBH
Inventor： Frank SCHULZ
CPC classification number: F16K11/0716 , F16K31/0613 , Y10T137/86702 , Y10T137/8671
Abstract: The invention relates to a valve device having a valve housing, and comprising a main piston (4) that is arranged in an axially slidable manner in a piston bore of the valve housing (2), via which a first consumer connection (A) and a second consumer connection (B) can be alternately connected to a pressure connection (P) and a tank connection (T1, T2) by way of the action of a first magnetic actuating system (6) and a second magnetic actuating system (8) and comprising two pilot pistons (14, 16). The invention is characterized in that in an actuated state of the respective pilot piston (14, 16), the main piston (4) follows the movement of said pilot piston (14, 16) due to the force ratio adjusting itself thereon, thus actuating the fluid-carrying connection between the pilot chamber (10, 12) of said pilot piston (14,16) and the assignable tank connection (T1, T2) such that pilot oil flows.
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