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公开(公告)号：US10161423B2
公开(公告)日：2018-12-25
申请号：US12374454
申请日：2007-07-19
申请人： William Hugh Salvin Rampen , Niall James Caldwell , Uwe Bernhard Pascall Stein , Pierre Joly , Michael Richard Fielding
发明人： William Hugh Salvin Rampen , Niall James Caldwell , Uwe Bernhard Pascall Stein , Pierre Joly , Michael Richard Fielding
IPC分类号： F15B11/17 , F15B11/044 , F15B11/16
摘要： A fluid power system comprises a pump with multiple independently variable outlets (11, 12, 13, 14), each of which is capable of delivering fluid in individually controllable volume units and a plurality of hydraulic loads (15, 16, 18, 20). A system of switching valves is configured to create fluid connections between the pump outlets and the loads. A control system commands both the pump and the switching valves, so as to create valve state combinations to satisfy load conditions as demanded by an operator. The number of pump outlets (11, 12, 13, 14) connected to one or more of the loads (15, 16, 18, 20) is changeable to satisfy the flow required of the load due to the operator demand, each pump outlet being commanded to produce a flow depending on the status of other outlets connected a load to which the outlet is connected and the operator demand for that load.
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公开(公告)号：US09052033B2
公开(公告)日：2015-06-09
申请号：US13141527
申请日：2009-12-22
CPC分类号： F16K31/082 , F16K31/0655 , F16K47/08
摘要： A valve assembly suitable for regulating the flow of fluid between a working chamber of a fluid-working machine and a fluid manifold. The valve assembly comprises a valve body comprising a valve seat, a fluid passage extending through the valve body, and a travelling member comprising a valve member, which valve member is operable between an open position in which the valve member is spaced apart from the valve seat and fluid can flow through the fluid passage and a closed position in which the valve member is in sealing contact with the valve seat preventing fluid from flowing through the fluid passage. The valve assembly defining a fluid flow path passing, in a first fluid flow mode, between the valve member and the valve seat, and into the fluid passage. The valve assembly is characterized by defining a fluid flow path including a constricted flow region and further comprising a reduced pressure chamber in communication with both a first surface of the travelling member and the constricted flow region, arranged to exert a force on the travelling member by way of a pressure reduction in the reduced pressure chamber when fluid is flowing along the fluid flow path, through the constricted flow region, which force acts to resist closure of the valve. Thus, a force is generated which opposes forces acting on the valve member due to the flow of fluid past the valve member.
摘要翻译： 一种阀组件，适于调节流体工作机械的工作室和流体歧管之间的流体流动。 阀组件包括阀体，阀体包括阀座，延伸穿过阀体的流体通道和包括阀构件的行进构件，该阀构件可在打开位置之间操作，在该打开位置中阀构件与阀门间隔开 座和流体可以流过流体通道和关闭位置，在该关闭位置，阀构件与阀座密封接触，防止流体流过流体通道。 阀组件限定了以第一流体流动模式在阀构件和阀座之间并流入流体通道的流体流路。 阀组件的特征在于限定包括收缩流动区域的流体流动路径，还包括与行进构件的第一表面和收缩流动区域连通的减压室，该减压室布置成通过 当流体沿着流体流动路径流动通过收缩的流动区域时，减压室中的压力降低的方式，该力用于阻止阀的关闭。 因此，由于流体经过阀构件而产生与作用在阀构件上的力相反的力。
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公开(公告)号：US09052032B2
公开(公告)日：2015-06-09
申请号：US13141510
申请日：2009-12-22
CPC分类号： F16K31/082 , F16K31/0655 , F16K47/08
摘要： A valve assembly for regulating the flow of fluid between a working chamber of a fluid-working machine and a fluid manifold. The valve assembly comprising a valve body comprising a valve seat, a fluid passage extending through the valve body, and a travelling member comprising a valve member and operable between an open position in which the valve member is spaced apart from the valve seat and fluid can flow through the fluid passage and a closed position in which the valve member is in sealing contact with the valve seat preventing fluid from flowing through the fluid passage. The valve assembly further defines a fluid flow path passing in a first fluid flow mode, between the valve member and the valve seat, and into the fluid passage. The valve assembly is characterized by a barrier upstream of the valve member, to the barrier reduces one or more forces which would otherwise act on the valve member as a result of the flow of fluid to urge the valve member towards the valve seat. Thus, one or more forces which would otherwise act on the valve member to urge the valve member to the closed position due to the flow of fluid past the valve member in the first fluid flow mode are reduced or removed. There is also disclosed a valve assembly in which fluid flowing along the said fluid flow path is incident on the downstream surface of the valve member at an angle of at least 80° to the direction in which the valve member is operable to travel between the open position and the closed position.
摘要翻译： 一种用于调节流体工作机械的工作室和流体歧管之间的流体流动的阀组件。 阀组件包括阀体，阀体包括阀座，延伸穿过阀体的流体通道以及包括阀构件的行进构件，并且可在阀构件与阀座和流体罐间隔开的打开位置之间操作 流过流体通道和关闭位置，其中阀构件与阀座密封接触，防止流体流过流体通道。 阀组件还限定了在第一流体流动模式中，在阀构件和阀座之间并流入流体通道中的流体流路。 阀组件的特征在于阀构件上游的障碍物，阻挡件减少由于流体的流动而使阀构件朝向阀座而作用在阀构件上的一个或多个力。 因此，由于流体在第一流体流动模式中流过阀构件的流动，否则作用在阀构件上以将阀构件推动到关闭位置的一个或多个力被减少或去除。 还公开了一种阀组件，其中沿着所述流体流动路径流动的流体以与阀构件可操作以在打开状态之间行进的方向至少80°的角度入口到阀构件的下游表面上 位置和关闭位置。
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4.发明授权公开(公告)号：US08347621B2
公开(公告)日：2013-01-08
申请号：US12309541
申请日：2007-07-23
申请人： Win Rampen , Onno Kuttler , Niall James Caldwell
发明人： Win Rampen , Onno Kuttler , Niall James Caldwell
CPC分类号： F04B17/05 , F03C1/0447 , F04B49/065 , F16H61/4035 , F16H61/4043 , F16H61/4148
摘要： The present invention provides a method of controlling a fluid working machine (12) having a plurality of working cylinders (14) having pistons (16) therein and arranged to drive a shaft (18), in which said cylinders are supplied with pressurized working fluid via a manifold (24), the contents of which may be 5 purged by a de-pressurizer taking one of a number for forms such as to allow re-activation of said machine (10).
摘要翻译： 本发明提供了一种控制流体工作机器（12）的方法，所述流体工作机器（12）具有多个在其中具有活塞（16）的工作缸（14），并被布置成驱动轴（18），其中所述气缸被供给加压工作流体 通过歧管（24），其内容物可以通过取消加压器5清洗，其中的一个用于允许所述机器（10）重新启动的形式。
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公开(公告)号：US20120060684A1
公开(公告)日：2012-03-15
申请号：US13320837
申请日：2011-02-23
申请人： Jack Samuel Lavender , Michael Richard Fielding , Niall James Caldwell , Uwe Bernhard Pascal Stein , Stephen Michael Laird
发明人： Jack Samuel Lavender , Michael Richard Fielding , Niall James Caldwell , Uwe Bernhard Pascal Stein , Stephen Michael Laird
IPC分类号： F01B13/06
CPC分类号： F04B53/1082 , F04B9/04 , F04B17/02 , Y02P80/158
摘要： The present invention relates to a fluid working machine comprising a controller and a working chamber, an electronically controllable low pressure valve associated therewith and a fast high pressure valve associated therewith, characterised in that the working chamber has associated therewith a slow high pressure valve for controlling the connection of the working chamber to a secondary high pressure manifold. A fluid working machine according to the invention may be operated to rotate its shaft to a certain position, for example to allow easy maintenance of a wind turbine generator.
摘要翻译： 本发明涉及一种流体工作机械，其包括控制器和工作室，与其相关联的电子可控低压阀和与其相关联的快速高压阀，其特征在于，工作室具有与其相连的缓慢的高压阀，用于控制 工作室与次级高压歧管的连接。 根据本发明的流体加工机可以被操作以将其轴转动到特定位置，例如以便于容易地维护风力涡轮发电机。
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公开(公告)号：US20110315003A1
公开(公告)日：2011-12-29
申请号：US13141510
申请日：2009-12-22
CPC分类号： F16K31/082 , F16K31/0655 , F16K47/08
摘要： A valve assembly for regulating the flow of fluid between a working chamber of a fluid-working machine and a fluid manifold. The valve assembly comprising a valve body comprising a valve seat, a fluid passage extending through the valve body, and a travelling member comprising a valve member and operable between an open position in which the valve member is spaced apart from the valve seat and fluid can flow through the fluid passage and a closed position in which the valve member is in sealing contact with the valve seat preventing fluid from flowing through the fluid passage. The valve assembly further defines a fluid flow path passing in a first fluid flow mode, between the valve member and the valve seat, and into the fluid passage. The valve assembly is characterised by a barrier upstream of the valve member, to the barrier reduces one or more forces which would otherwise act on the valve member as a result of the flow of fluid to urge the valve member towards the valve seat. Thus, one or more forces which would otherwise act on the valve member to urge the valve member to the closed position due to the flow of fluid past the valve member in the first fluid flow mode are reduced or removed. There is also disclosed a valve assembly in which fluid flowing along the said fluid flow path is incident on the downstream surface of the valve member at an angle of at least 80° to the direction in which the valve member is operable to travel between the open position and the closed position.
摘要翻译： 一种用于调节流体工作机械的工作室和流体歧管之间的流体流动的阀组件。 阀组件包括阀体，阀体包括阀座，延伸穿过阀体的流体通道以及包括阀构件的行进构件，并且可在阀构件与阀座和流体罐间隔开的打开位置之间操作 流过流体通道和关闭位置，其中阀构件与阀座密封接触，防止流体流过流体通道。 阀组件还限定了在第一流体流动模式中，在阀构件和阀座之间并流入流体通道中的流体流路。 阀组件的特征在于阀构件上游的障碍物，阻挡件减少由于流体的流动而使阀构件朝向阀座而作用在阀构件上的一个或多个力。 因此，由于流体在第一流体流动模式中流过阀构件的流动，否则作用在阀构件上以将阀构件推动到关闭位置的一个或多个力被减少或去除。 还公开了一种阀组件，其中沿着所述流体流动路径流动的流体以与阀构件可操作以在打开状态之间行进的方向至少80°的角度入口到阀构件的下游表面上 位置和关闭位置。
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公开(公告)号：US20090302251A1
公开(公告)日：2009-12-10
申请号：US12296183
申请日：2007-04-03
申请人： Niall James Caldwell
发明人： Niall James Caldwell
IPC分类号： F16K31/02
CPC分类号： H01F7/1646 , F02M51/0635 , H01F7/081 , H01F7/1844 , H01F2007/1692 , H01F2007/1888
摘要： An electromagnetic actuator comprises a core (1), a ferromagnetic component (2) movable in a gap (5) in the core, and a magnet (4) for attracting the component to one side of the gap. A flux concentrator (12) concentrates the magnetic flux on that side of the gap (5) and a solenoid (8) produces magnetic flux in the gap. A magnetic circuit of the solenoid is defined by part of the core (1), part of the gap (5) and by a further gap (6) between the ferromagnetic component (2) and the core (1). A demagnetiser (7) has a magnetic circuit defined by another part of the core (1), another part of the gap (5) and by the further gap (6). The demagnetiser is arranged to demagnetise the magnet (4) at least to the extent that the magnetic flux produced by the solenoid (8) is diverted from the flux concentrator (12) into the further gap (6) and the movable component (2) is movable away from the magnet (4) under the magnetic force of the solenoid (8).
摘要翻译： 电磁致动器包括芯体（1），可在芯体中的间隙（5）中移动的铁磁部件（2）和用于将部件吸引到间隙的一侧的磁体（4）。 磁通集中器（12）将磁通集中在间隙（5）的该侧，并且螺线管（8）在间隙中产生磁通量。 螺线管的磁路由铁芯（1）的一部分，间隙（5）的一部分和铁磁部件（2）和铁芯（1）之间的另外的间隙（6）限定。 退磁器（7）具有由芯部（1）的另一部分，间隙（5）的另一部分和另外的间隙（6）限定的磁路。 去磁器被布置成至少使由螺线管（8）产生的磁通从集流器（12）转移到另外的间隙（6）和可移动部件（2）的程度使磁体（4）退磁， 在螺线管（8）的磁力下可从磁体（4）移开。
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8.发明申请COOLING SYSTEM AND A TRANSMISSION SYSTEM HAVING SAID COOLING SYSTEM INTEGRATED THEREWITH 有权冷却系统和具有集成冷却系统的传动系统公开(公告)号：US20090235657A1
公开(公告)日：2009-09-24
申请号：US12309691
申请日：2007-07-27
CPC分类号： F01P7/044
摘要： The present invention provides a cooling system such as employed in cooling a heat source and a transmission system having said cooling system integrated therewith. The cooling system further includes a pump for supplying hydraulic fluid under pressure to a motor for driving a fan employed in the cooling process. In operation, a controller initiates operation of the pump such as to supply hydraulic fluid to said motor only when needed, thereby to improve the efficiency and controllability of the cooling system.
摘要翻译： 本发明提供了一种用于冷却热源的冷却系统和具有与其集成的所述冷却系统的传动系统。 该冷却系统还包括用于将压力下的液压流体供应到用于驱动在冷却过程中使用的风扇的马达的泵。 在操作中，控制器启动泵的操作，以便在需要时仅向所述电动机供应液压流体，从而提高冷却系统的效率和可控性。
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公开(公告)号：US09091253B2
公开(公告)日：2015-07-28
申请号：US13000103
申请日：2009-06-22
CPC分类号： F04B7/0076 , F01B15/06 , F01B25/10 , F04B7/0057 , F04B49/24 , Y10T137/0324
摘要： A fluid working machine comprises a controller and a working chamber of cyclically varying volume having an electronically controllable primary low pressure valve and a secondary low pressure port associated therewith, each of which is openable and closable in phased relation to cycles of working chamber volume to bring the working chamber into fluid communication with a low pressure manifold. At least the primary low pressure valve is under the active control of the controller to enable the controller to determine the net displacement of fluid by the working chamber on a cycle by cycle basis. The primary low pressure valve and the secondary low pressure port are openable concurrently and in parallel during a portion of at least some cycles of working chamber volume, including at the point in the expansion or contraction stroke where the rate of change of volume of the working chamber is greatest.
摘要翻译： 流体工作机器包括控制器和具有循环变化体积的工作室，其具有电子可控的初级低压阀和与其相关联的次级低压端口，每个低压端口可与工作室容积的周期相分离地相关 工作室与低压歧管流体连通。 至少主低压阀处于控制器的主动控制下，使得控制器能够逐周期地确定工作室的流体净排量。 初级低压阀和次级低压端口可以在工作室容积的至少一些循环的一部分期间同时并且平行地打开，包括在膨胀或收缩冲程中的工作量的变化率 房间最大。
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公开(公告)号：US09033309B2
公开(公告)日：2015-05-19
申请号：US13126631
申请日：2009-10-27
CPC分类号： H01F7/081 , F04B7/0076 , F04B49/246 , F16K31/082 , H01F7/13 , H01F7/1615
摘要： The invention relates to a valve actuator (2), comprising a magnetic core (6) with an interspace (8) and at least one bifurcating branch (7), at least one variable magnetic field generating device (16), at least one permanent magnetic field generating device (13) and at least one movable magnetic component (12), wherein the bifurcating branch (7) defines a first region (4) and a second region (5) of said magnetic core (6). Said movable magnetic component (12) is movably arranged within said interspace (8) of said magnetic core (6) in such a way that a first gap (19) is formed between a first surface (23) of said movable magnetic component (12) and a first surface (22) of said interspace (8) of said magnetic core (6), a second gap (20) is formed between a second surface (24) of said movable magnetic component (12) and a second surface (25) of said interspace (8) of said magnetic core (6), and a third gap (21) is formed between a third surface (27) of said movable magnetic component (12) and a third surface (26) of said bifurcating branch (7) of said magnetic core (6). At least one of said variable magnetic field generating devices (48, 49) is associated with said first region (4) of said magnetic core (6) and at least one of said permanent magnetic field generating devices (13) is associated with said second region (5) of said magnetic core (6). Said valve actuator (2) is designed and arranged in a way that a magnetic flux, generated by at least one at least one of said variable magnetic field generating devices (16) is able to exert a force on said at least one movable magnetic component (12) and is able to cancel the magnetic flux (48, 49), generated by at least one of said permanent magnetic field generating devices (13). At least one magnetic flux limiting means (7, 12) is provided, whose magnetic flux limit can be reached or exceeded.
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