公开(公告)号：US20130074955A1

公开(公告)日：2013-03-28

申请号：US13671962

申请日：2012-11-08

申请人： Parker-Hannifin Corporation

发明人： Björn Eriksson

IPC分类号： F16K17/04

CPC分类号： F16K17/04 ,  F15B11/05 ,  F15B13/0402 ,  F15B2211/40561 ,  F15B2211/40569 ,  G05D16/10 ,  Y10T137/7754 ,  Y10T137/7788 ,  Y10T137/7838 ,  Y10T137/7929 ,  Y10T137/8242

摘要： A pressure controlling valve includes a slidable spool arranged to be spring loaded towards a neutral position. A first port and a second port are connected to allow a fluid flow through the valve. A first and a second pilot port are connected to a cavity adjacent a respective first and second end surface of the spool. The pilot ports are connected to a fluid conduit on either side of a fluid device causing a pressure drop in the fluid conduit and the fluid device is connected to one of the first or second ports. The spool is displaced against the spring load in response to a pressure difference between the first and the second pilot port, whereby a control surface of the spool is arranged to restrict the fluid flow through the valve when the control surface approaches a central cavity.

摘要翻译： 压力控制阀包括可滑动的卷轴，其被布置成朝向中立位置弹簧加载。 第一端口和第二端口被连接以允许流体流过阀。 第一和第二先导端口连接到与卷轴的相应的第一和第二端面相邻的空腔。 导向口连接到流体装置两侧的流体导管，导致流体导管中的压力降，并且流体装置连接到第一或第二端口之一。 响应于第一和第二先导端口之间的压差，阀芯相对于弹簧负载移位，由此，当控制表面接近中心腔时，阀芯的控制表面被设置成限制流过阀的流体流动。

公开(公告)号：US20110017310A1

公开(公告)日：2011-01-27

申请号：US12665744

申请日：2007-07-02

申请人： Bjorn Eriksson

发明人： Bjorn Eriksson

IPC分类号： F15D1/00 ,  F16K31/12

CPC分类号： E02F9/2203 ,  E02F9/2228 ,  E02F9/2267 ,  E02F9/2296 ,  F15B11/006 ,  F15B2211/20546 ,  F15B2211/30575 ,  F15B2211/3144 ,  F15B2211/329 ,  F15B2211/40561 ,  F15B2211/40569 ,  F15B2211/634 ,  F15B2211/7053 ,  Y10T137/0396 ,  Y10T137/7761

摘要： The invention relates to a method for controlling a fluid valve arrangement that includes a fluid conduit arrangement having a first conduit and a second conduit, the first and the second conduits being connectable with a fluid consumer; a supply connection arrangement having a pressure connection and a tank connection, and a number of valve arrangement for connecting the consumer to the pressure connection or the tank and a control device, which controls the valve arrangements. The method involves detecting output signals from opening degree sensors connected across at least the first and second valve arrangements to determine the magnitude and direction of a pressure drop across at least the first and second valve arrangements, and using the output signals to determine an operating mode for each valve arrangement.

摘要翻译： 本发明涉及一种用于控制流体阀装置的方法，其包括具有第一导管和第二导管的流体导管装置，第一和第二导管可与流体消耗器连接; 具有压力连接和罐连接的供应连接装置，以及用于将消费者连接到压力连接或罐的多个阀装置和控制阀装置的控制装置。 所述方法包括检测连接在至少第一和第二阀装置上的开度传感器的输出信号，以确定至少第一和第二阀装置上的压降的大小和方向，并且使用输出信号来确定操作模式 对于每个阀装置。

公开(公告)号：US07380489B2

公开(公告)日：2008-06-03

申请号：US11403710

申请日：2006-04-13

申请人： Man Suk Jeon

发明人： Man Suk Jeon

IPC分类号： F15B11/042 ,  F15B11/05

CPC分类号： F15B11/05 ,  F15B2211/30535 ,  F15B2211/40515 ,  F15B2211/40561 ,  F15B2211/455 ,  F15B2211/50572 ,  F15B2211/5158 ,  F15B2211/57 ,  F15B2211/575

摘要： Disclosed is a hydraulic circuit for an option device of heavy construction equipment which can facilitate manipulation of the option device such as a breaker and optionally control a flow rate by supplying hydraulic fluid from a hydraulic pump to the option device at a constant flow rate, regardless of the size of load produced on the option device. The hydraulic circuit includes a variable displacement hydraulic pump, an option device connected to the hydraulic pump, a first spool, installed in a flow path between the hydraulic pump and the option device, for being shifted in response to a pilot signal pressure applied from an outside to control a flow rate applied from the hydraulic pump to the option device, a poppet, operatively installed in a flow path between the hydraulic pump and the first spool, for supplying hydraulic fluid to the option device when the first spool is shifted, a piston resiliently urged in a back pressure chamber of the poppet, and a second spool for being shifted by a pressure difference between pressures of the hydraulic fluid before and after the hydraulic fluid passes through the first spool, and controlling the flow rate applied to the back pressure chamber of the poppet via a through-path communicating with the back pressure chamber when the second spool is shifted.

摘要翻译： 公开了一种用于重型施工设备的选项装置的液压回路，其可以便于对诸如断路器的选项装置的操纵，并且可选地通过以恒定的流量向液压泵供应液压流体至选配装置，而不管 在选件装置上产生的负载尺寸。 液压回路包括可变容量液压泵，连接到液压泵的可选装置，安装在液压泵和选件装置之间的流动路径中的第一阀芯，用于响应于从 外部控制从液压泵施加到可选装置的流量，可操作地安装在液压泵和第一阀芯之间的流动路径中的提升阀，用于当第一阀芯移位时将液压流体供应到选件装置， 活塞在提升阀的背压室中弹性地推压，以及第二阀芯，用于在液压流体通过第一阀芯之前和之后由液压流体的压力之间的压力差移动，并且控制施加到后端的流量 当第二线轴移动时，通过与后压室连通的通路，提升阀的压力室。

公开(公告)号：US20080053538A1

公开(公告)日：2008-03-06

申请号：US11821109

申请日：2007-06-21

申请人： Man Suk Jeon

发明人： Man Suk Jeon

IPC分类号： F15B21/00

CPC分类号： E02F9/2267 ,  E02F9/2271 ,  E02F9/2296 ,  F15B11/042 ,  F15B11/05 ,  F15B2211/20546 ,  F15B2211/3116 ,  F15B2211/329 ,  F15B2211/40561 ,  F15B2211/413 ,  F15B2211/428 ,  F15B2211/455 ,  F15B2211/5059 ,  F15B2211/7053 ,  Y10T137/7766 ,  Y10T137/7768 ,  Y10T137/7769 ,  Y10T137/87209

摘要： A hydraulic circuit of an option device for an excavator is disclosed, which can constantly supply hydraulic fluid to an option device, such as a breaker and so on, selectively mounted on the excavator, irrespective of the size of a load occurring when the option device operates, and control respective flow rates required for various kinds of option devices. The hydraulic circuit includes a variable hydraulic pump, an option device, a first spool shifted to control hydraulic fluid fed to the option device, a poppet and a piston, an option spool shifted to control hydraulic fluid fed to the option device via the first spool, a second spool shifted to control hydraulic fluid fed to a back pressure chamber of the poppet, and a control means installed in the poppet and controlling hydraulic fluid passing through an orifice of the poppet when the piston and the poppet are pressed by the hydraulic fluid fed from the hydraulic pump, through the shifting of the second spool.

摘要翻译： 公开了一种用于挖掘机的可选装置的液压回路，其可以不间断地将液压流体供应到选择性地安装在挖掘机上的诸如断路器等的选项装置，而不管当选件装置 操作和控制各种选项装置所需的相应流量。 液压回路包括可变液压泵，可选装置，转动以控制供给到选件装置的液压流体的第一阀芯，提升阀和活塞，移位以控制通过第一阀芯供给到可选装置的液压流体的选件阀芯 ，第二阀芯移动以控制供给到提升阀的背压室的液压流体;以及控制装置，其安装在提升阀中，并且当活塞和提升阀被液压流体按压时控制通过提升阀的孔口的液压流体 通过第二阀芯的移位从液压泵进给。

公开(公告)号：US06931847B1

公开(公告)日：2005-08-23

申请号：US10793597

申请日：2004-03-04

申请人： Charles D. Throckmorton ,  Michael D. Gandrud ,  Jimmy W. Bolinger

发明人： Charles D. Throckmorton ,  Michael D. Gandrud ,  Jimmy W. Bolinger

IPC分类号： F15B11/16 ,  F16D31/02

CPC分类号： F15B11/162 ,  F15B2211/20546 ,  F15B2211/25 ,  F15B2211/40515 ,  F15B2211/40561 ,  F15B2211/426 ,  F15B2211/455 ,  F15B2211/50563 ,  F15B2211/57 ,  F15B2211/6054 ,  F15B2211/6055 ,  F15B2211/71 ,  F15B2211/781

摘要： A priority circuit is provided that is in communication with an open circuit pump and priority and auxiliary systems. The circuit comprises a first valve with an inlet in communication with the pump, an outlet in communication the priority system, and a load sensing inlet in communication with the priority system, wherein the first valve modulates to maintain a predetermined pressure differential between pressure at the load sensing inlet and pressure at the outlet. The circuit further comprises a second valve with an inlet in communication with the pump, an outlet in communication with the auxiliary system, and a load sensing inlet in communication with the priority system, wherein the second valve is normally closed and opens when pressure at the load sensing inlet of the second valve is less than pressure at the inlet of the second valve minus the predetermined pressure differential of the first valve.

摘要翻译： 提供了与开路泵和优先级和辅助系统通信的优先级电路。 电路包括具有与泵连通的入口的第一阀，与优先系统通信的出口以及与优先系统连通的负载感测入口，其中第一阀调节以保持预定压力差 负载检测入口和出口压力。 该电路还包括具有与泵连通的入口的第二阀，与辅助系统连通的出口以及与优先系统连通的负载感测入口，其中第二阀常闭，当压力在 第二阀的负载检测入口小于第二阀的入口处的压力减去第一阀的预定压力差。

公开(公告)号：US6041807A

公开(公告)日：2000-03-28

申请号：US057550

申请日：1998-04-09

申请人： Susumu Honaga ,  Hidetoshi Fujiwara ,  Yoshiharu Inaguma ,  Hideya Kato ,  Kazuhiro Watanabe ,  Takashi Imanishi

发明人： Susumu Honaga ,  Hidetoshi Fujiwara ,  Yoshiharu Inaguma ,  Hideya Kato ,  Kazuhiro Watanabe ,  Takashi Imanishi

IPC分类号： B62D5/06 ,  F15B11/042 ,  F15B11/05 ,  F15B13/00 ,  G05D11/03

CPC分类号： F15B11/05 ,  B62D5/062 ,  F15B11/042 ,  F15B11/0423 ,  F15B2013/008 ,  F15B2211/2053 ,  F15B2211/40515 ,  F15B2211/40561 ,  F15B2211/45 ,  F15B2211/455 ,  F15B2211/50509

摘要： A flow control device, responsive to the rotational speed of a pump and to load pressure, has a simple structure. And a housing of the flow control device for saving energy can make use of a general pump housing not for saving energy as a common housing.The flow control device of a power steering apparatus, arranged in a housing of a pump, includes a flow control valve and a load pressure responsive valve. The flow control valve includes a bypass spool with a control rod penetrating a metering orifice. The load pressure responsive valve is incorporated in a union for response to the load pressure. The control rod is located on the bypass spool for response to the rotational speed of the pump.

摘要翻译： 响应于泵的转速和负载压力的流量控制装置具有简单的结构。 并且用于节能的流量控制装置的壳体可以利用一般的泵壳体，而不是为了节省能量作为共同的壳体。 动力转向装置的流量控制装置，其配置在泵的壳体中，具有流量控制阀和负载压力响应阀。 流量控制阀包括具有穿过计量孔的控制杆的旁通阀芯。 负载压力响应阀被并入用于响应负载压力的联合。 控制杆位于旁路阀芯上以响应泵的转速。

公开(公告)号：US4739617A

公开(公告)日：1988-04-26

申请号：US921735

申请日：1986-10-22

申请人： Norbert Kreth ,  Martin Schmitt ,  Armin Stellwagen

发明人： Norbert Kreth ,  Martin Schmitt ,  Armin Stellwagen

IPC分类号： F15B11/16 ,  F15B21/08 ,  F16D31/02

CPC分类号： F15B11/163 ,  F15B11/168 ,  F15B21/08 ,  F15B2211/20553 ,  F15B2211/255 ,  F15B2211/30535 ,  F15B2211/351 ,  F15B2211/40515 ,  F15B2211/40561 ,  F15B2211/428 ,  F15B2211/455 ,  F15B2211/6054 ,  F15B2211/71 ,  F15B2211/76

摘要： A pump supplies via in each case a directional valve a plurality of consumers with fluid, a pressure balance for load-independent division of the pump displacement being provided between each branch line branching off the pump delivery line and the directional valve. In a pressure regulating valve common to all pressure balances a control pressure is generated from the pressure difference between the pump pressure and the respective highest consumer pressure and is applied to all the pressure balances so that when the pump power is inadequate a proportional quantity reduction at all consumers is achieved.

摘要翻译： 泵在每种情况下通过方向阀供给具有流体的多个使用者，用于负载无关地分配泵排量的压力平衡设置在从泵输送管线分支出的分支线与方向阀之间。 在所有压力平衡通用的压力调节阀中，从泵压力和相应的最高消耗压力之间的压力差产生控制压力，并施加到所有的压力平衡，使得当泵功率不足时，比例量减少 所有消费者都实现了。

公开(公告)号：US08418723B2

公开(公告)日：2013-04-16

申请号：US10494568

申请日：2002-12-09

申请人： Hideki Tsuchiya ,  Yoshiharu Miya

发明人： Hideki Tsuchiya ,  Yoshiharu Miya

IPC分类号： F16K31/06

CPC分类号： F16K31/0655 ,  B62D5/062 ,  B62D5/065 ,  F15B11/055 ,  F15B2211/40507 ,  F15B2211/40515 ,  F15B2211/40561 ,  F15B2211/40576 ,  F15B2211/413 ,  F15B2211/41563 ,  F15B2211/41572 ,  F15B2211/426 ,  F15B2211/428 ,  F15B2211/45 ,  F15B2211/455 ,  F15B2211/50518 ,  F15B2211/5157 ,  F15B2211/55 ,  F16K31/0675 ,  G05D7/0641 ,  Y10T137/86622

摘要： An electromagnetic proportional flow rate control valve capable of performing precise flow rate control in a low flow rate side of an operating region is provided. In an electromagnetic proportional flow rate control valve 32, in which a valve member 2 is driven in a valve closing direction in accordance with the increase in a driving current I of a solenoid coil 15, a solenoid driving force F is set such that it decreases accompanying the displacement of the valve member 2 in the valve closing direction with respect to an identical driving current in the solenoid coil 15. Thus, an amount of change in an area of a valve opening with respect to unit changes in the driving current I becomes smaller in a region at which the stroke is small compared to a case of having flat characteristics, whereby the flow rate control precision in the low flow rate region can be improved.

摘要翻译： 提供一种能够在操作区域的低流量侧进行精确的流量控制的电磁比例流量控制阀。 在电磁比例流量控制阀32中，根据螺线管线圈15的驱动电流I的增加，阀构件2以关闭方向被驱动，螺线管驱动力F被设定为使其减小 伴随着阀构件2相对于螺线管线圈15中的相同驱动电流在阀闭合方向上的位移。因此，相对于驱动电流I中单元变化的阀开口面积的变化量变为 与具有平坦特性的情况相比，在行程小的区域较小，能够提高低流量区域的流量控制精度。

公开(公告)号：US20120152368A1

公开(公告)日：2012-06-21

申请号：US12971149

申请日：2010-12-17

申请人： John Ferraz ,  Aleksandar M. Egelja ,  Pengfei Ma ,  Matthew J. Beschorner

发明人： John Ferraz ,  Aleksandar M. Egelja ,  Pengfei Ma ,  Matthew J. Beschorner

IPC分类号： F16K31/02

CPC分类号： F15B11/05 ,  F15B2211/20523 ,  F15B2211/30575 ,  F15B2211/40561 ,  F15B2211/5059 ,  F15B2211/7053 ,  Y10T137/0379 ,  Y10T137/7761

摘要： An independent metering valve (IMV) assembly is disclosed that includes a metering stem including an inlet. The IMV assembly also includes a hydro-mechanical control valve in communication with a fluid source and the inlet. The control valve also including a spool with a closed end and an open end. The control valve includes a biasing member that biases the control valve or spool towards an open position thereby establishing communication between the fluid source and the inlet. The control valve also including a load signal line providing communication between an outlet of the control valve upstream of the inlet and the closed end of the spool. Wherein high pressure in the load signal line allowing the control valve to move towards a closed position thereby overcoming bias of the biasing member and reducing flow to the inlet during a high pressure condition.

摘要翻译： 公开了一种独立计量阀（IMV）组件，其包括包括入口的计量阀杆。 IMV组件还包括与流体源和入口连通的水力机械控制阀。 控制阀还包括具有封闭端和开口端的线轴。 控制阀包括偏压构件，该偏置构件将控制阀或阀芯朝向打开位置偏置，从而建立流体源和入口之间的连通。 控制阀还包括负载信号线，其提供在入口上游的控制阀的出口与阀芯的封闭端之间的连通。 其中负载信号线中的高压允许控制阀朝向关闭位置移动，由此克服偏置构件的偏压并且在高压条件期间减少到入口的流量。

公开(公告)号：US07784391B2

公开(公告)日：2010-08-31

申请号：US10549728

申请日：2004-03-19

申请人： Per-Ola Vallebrant ,  Mikael Sannelius

发明人： Per-Ola Vallebrant ,  Mikael Sannelius

IPC分类号： F15B13/04

CPC分类号： F15B11/044 ,  B27B17/08 ,  F03C1/0678 ,  F15B11/0406 ,  F15B11/05 ,  F15B13/0402 ,  F15B2211/40553 ,  F15B2211/40561 ,  F15B2211/50563 ,  F15B2211/57 ,  F15B2211/7058 ,  F15B2211/75 ,  F15B2211/755 ,  F15B2211/76 ,  F15B2211/851 ,  F15B2211/853

摘要： The present invention relates to an arrangement for controlling a hydraulically driven motor, forming part of a hydraulic system in which hydraulic fluid under pressure forms a main flow through a main duct in which the motor is connected. The motor drives a varying load, and one or more valves (7) are adapted for controlling the hydraulic fluid flow through the motor on the one hand during operation and on the other hand for starting and stopping of the motor. One of the valves consists of a flow control valve (7) which is connected in the main duct (1) downstream of the outlet of the motor, and the flow control valve (7) is integrated with the motor housing (50).

摘要翻译： 本发明涉及一种用于控制液压驱动马达的装置，其形成液压系统的一部分，其中压力下的液压流体通过主马达连接的主管道形成主流。 电动机驱动变化的负载，并且一个或多个阀（7）适于在操作期间一方面控制通过电动机的液压流体流动，另一方面用于控制电动机的起动和停止。 其中一个阀门由流量控制阀（7）组成，流量控制阀连接在电机出口下游的主管道（1）中，流量控制阀（7）与马达壳体（50）集成。