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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.

    TEST DEVICE
    2.
    发明公开
    TEST DEVICE 审中-公开

    公开(公告)号：US20240011478A1

    公开(公告)日：2024-01-11

    申请号：US18028668

    申请日：2021-11-15

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Joachim MORSCH ,  Wolfgang HAHMANN ,  Gerd SCHNEIDER

    IPC: F04B51/00 ,  F04B49/06

    CPC classification number: F04B51/00 ,  F04B49/065

    Abstract: A test device for a fluidic pump device (10), which can be driven by a drive device and of which the pump rotational speed that leads to a defined fluid volumetric flow on the output side (12) of the pump device (10) is known, is characterized in that the fluid volumetric flow is conducted at least temporarily via a pressure influencing device (22) which, during operation of the pump device (10), brings about a pressure drop, by way of the decrease of which an evaluation device (32) makes a statement about a reduced functional capability of the pump device (10) possible.

    VALVE
    3.
    发明申请
    VALVE 审中-公开

    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

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

    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).

    Valve
    5.
    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
    7.
    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.

    COMPACT UNIT
    9.
    发明申请
    COMPACT UNIT 审中-公开
    紧凑型单元

    公开(公告)号：US20170058923A1

    公开(公告)日：2017-03-02

    申请号：US15120155

    申请日：2015-01-14

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Andreas BOEHLER ,  Markus KUHN

    IPC: F15B21/04 ,  H02K9/04 ,  F04D29/32 ,  H02K5/20 ,  F15B1/26 ,  F15B11/16

    CPC classification number: F15B21/042 ,  F04B17/03 ,  F04B17/06 ,  F04B53/08 ,  F04B53/16 ,  F04D29/325 ,  F15B1/26 ,  F15B11/16 ,  F15B2211/20515 ,  H02K5/20 ,  H02K9/04

    Abstract: The invention relates to a compact unit, at least consisting of an electric motor, which is accommodated in housing parts (7, 55) of a unit housing (45) and which drives at least one hydraulic pump and gives off heat at the same time, an air heat-exchanging device, and a fan (19), which can be driven in order t o produce an air flow. The compact unit is characerized in that a flow-conducting device (47, 55) that divides off from the air flow at least a first partial flow flowing around the electric motor and a second partial flow flowing to the heat-exchanging device is present in the unit housing (45), or that, arranged in series, the air flow first flows against the electric motor and then the heat-exchanging device, or that the incidence of the air flow occurs at least partially in the reverse direction.

    Abstract translation: 本发明涉及至少由电机组成的紧凑型单元，该电动机容纳在单元壳体（45）的壳体部分（7,55）中，并且驱动至少一个液压泵同时发出热量 ，空气热交换装置和风扇（19），其可以被驱动以产生空气流。 致密单元的特征在于，与从空气流中分离出的至少一个流过电动机的第一部分流和流向热交换装置的第二部分流的流动传导装置（47,55）存在于 单元壳体（45）或者串联布置的气流首先流过电动机，然后流过热交换装置，或者空气流的入射至少部分地沿相反方向发生。

    PRESSURE RETAINING VALVE
    10.
    发明申请
    PRESSURE RETAINING VALVE 审中-公开
    压力保持阀

    公开(公告)号：US20160195114A1

    公开(公告)日：2016-07-07

    申请号：US14912947

    申请日：2014-08-14

    Applicant: HYDAC FLUIDTECHNIK GMBH

    Inventor： Gerd SCHNEIDER ,  Markus BILL

    IPC: F15B13/04 ,  F16K37/00

    CPC classification number: F15B13/0401 ,  F15B13/01 ,  F15B2013/0409 ,  F16K37/0041

    Abstract: A load-holding valve (1) having at least one main control piston (39) which is guided longitudinally displaceably in a single-piece or multiple-piece valve housing (29) and a non-return piston (43), wherein, in switching positions, in the form of a load-holding position a fluid-conducting connection between at least two connection points (37, 21) is shut off by means of the two pistons (39, 43), of which connection points (37, 21) one (37) serves to feed or discharge media and the other (21) leads to a hydraulic consumer, in the form of a load-raising position the two pistons (43) move relative to one another into a release position, in which the connection between the medium feed (37) and the consumer is established, and in the form of a load-reducing position the two pistons (39, 43) assume a predefinable spacing from one another in such a way that the connection between the medium discharge (37) and the consumer is established, is characterized in that there is a monitoring device (75) which determines the individual switching positions of said pistons (39, 43), in order to ensure reliable functioning of the load-holding valve (1).

    Abstract translation: 一种具有至少一个主控制活塞（39）的负载保持阀（1），所述至少一个主控制活塞（39）在单件或多件式阀壳体（29）和非止回活塞（43）中纵向可移位地被引导，其中， 切换位置以负载保持位置的形式，通过两个活塞（39,43）切断至少两个连接点（37,21）之间的流体传导连接，其中连接点（37,31） 21）一个（37）用于进料或排出介质，而另一个（21）引导到液压消耗器，以负载提升位置的形式，两个活塞（43）相对于彼此移动到释放位置， 其中介质进料（37）和消耗者之间的连接被建立，并且以减重位置的形式，两个活塞（39,43）以彼此之间的连接的方式呈现可预定的间隔， 中等放电（37）和消费者建立，其特征在于有一个监控装置 75），其确定所述活塞（39,43）的各个切换位置，以确保负载保持阀（1）的可靠运行。

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