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公开(公告)号：US20240011478A1
公开(公告)日：2024-01-11
申请号：US18028668
申请日：2021-11-15
发明人： Joachim MORSCH , Wolfgang HAHMANN , Gerd SCHNEIDER
CPC分类号： F04B51/00 , F04B49/065
摘要： 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.
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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
发明人： Peter BRUCK , Frank SCHULZ
摘要： 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：US10678276B2
公开(公告)日：2020-06-09
申请号：US15352702
申请日：2016-11-16
发明人： Harald Baer , Josef Christian Schaefer , Ferdinand Friebe , Philipp Gandner , Maximilian Gehring , Philipp Linnebach
摘要： A valve device for controlling a fluid flow includes a flow control valve (15) having a valve housing (19) with a supply connection (9) and a user connection (11). A valve piston (17) is guided inside the valve housing (19) longitudinally moveable and controls the passage to the user connection (11) by a thermocouple (61) via an orifice (37, 39) depending on the temperature of the fluid flow. A pressure compensator (21) is connected to the supply connection (9) and keeps the pressure drop across the orifice (37, 39) constant.
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公开(公告)号：US10544869B2
公开(公告)日：2020-01-28
申请号：US15554239
申请日：2016-01-29
发明人： Peter Bruck
IPC分类号： F15B13/04 , F16K11/07 , F16K31/06 , F16K29/00 , F15B13/044
摘要： 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.
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公开(公告)号：US09915276B2
公开(公告)日：2018-03-13
申请号：US13784934
申请日：2013-03-05
发明人： Peter Bruck , Philipp Hilzendegen , Gerd Schneider
IPC分类号： F15B13/043 , F15B13/04 , G05D16/20 , F16K17/10 , F16K31/42 , F16K31/06 , F16K27/04 , F16H61/02
CPC分类号： F15B13/0401 , F15B13/0433 , F15B13/0435 , F16H2061/0258 , F16K17/10 , F16K27/048 , F16K31/0613 , F16K31/426 , G05D16/2093 , Y10T137/86582 , Y10T137/86614
摘要： A valve, in particular a pilot-operated proportional pressure control valve, has a valve housing (5) with a pressure supply port (7), a working port (9), and a drain port (11). In the valve housing (5), a main valve piston (15) can be moved by a pilot stage (13) for control of the fluid flow between the pressure supply port (7) and the working port (9). The pilot stage (13) has a valve closing element (43) for a pilot chamber (41). The valve closing element (43) is movable from an open position (OS) into a closed position (SS) by an actuating apparatus (45). The valve closing element (43) can actuate a leakage reduction stage (53).
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公开(公告)号：US09733651B2
公开(公告)日：2017-08-15
申请号：US14891691
申请日：2014-04-08
发明人： Martin Grill , Peter Bruck
CPC分类号： G05D16/2013
摘要： 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.
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公开(公告)号：US09664291B2
公开(公告)日：2017-05-30
申请号：US14417912
申请日：2013-07-18
发明人： Peter Bruck , Markus Bill
CPC分类号： F16K1/526 , F15B13/015 , F16K21/04 , F16K31/122 , F16K31/408 , Y10T137/7755
摘要： 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) on a rear face (29) of the main piston (27) has a pilot valve closing member (33) movable by an actuating device (69) to adjust the fluid stream between the pilot valve chamber (37) and the fluid outlet (23). A supply aperture (3) is between the fluid inlet (21) and the pilot valve chamber (37). The opening cross-section of the supply aperture (3) can be reduced by a control element (49).
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公开(公告)号：US20170058923A1
公开(公告)日：2017-03-02
申请号：US15120155
申请日：2015-01-14
发明人： Andreas BOEHLER , Markus KUHN
CPC分类号： F15B21/042 , F04B17/03 , F04B17/06 , F04B53/08 , F04B53/16 , F04D29/325 , F15B1/26 , F15B11/16 , F15B2211/20515 , H02K5/20 , H02K9/04
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20160195114A1
公开(公告)日：2016-07-07
申请号：US14912947
申请日：2014-08-14
发明人： Gerd SCHNEIDER , Markus BILL
CPC分类号： F15B13/0401 , F15B13/01 , F15B2013/0409 , F16K37/0041
摘要： 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).
摘要翻译： 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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10.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
发明人： Frank Schulz , Peter Bruck
CPC分类号： 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
摘要： 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).
摘要翻译： 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）。
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