公开(公告)号：US20100018198A1

公开(公告)日：2010-01-28

申请号：US12449929

申请日：2008-01-18

申请人： Winfried Rüb

发明人： Winfried Rüb

IPC分类号： F15B11/05 ,  F15B11/16 ,  F15B13/06

CPC分类号： F15B11/05 ,  E02F9/2285 ,  F15B11/163 ,  F15B2211/20538 ,  F15B2211/30535 ,  F15B2211/329 ,  F15B2211/40561 ,  F15B2211/6054 ,  F15B2211/6055 ,  F15B2211/6313 ,  F15B2211/6355 ,  Y10T137/87185

摘要： The invention relates to a valve arrangement having an adjustable control valve (10), comprising a control slide (12) for actuating at least one consumer connection (A,B), and having an LS control line, wherein the differential pressure of two actuating pressures (Xa, Xb) serves for the actuation of the control slide (12). Due to the fact that the actuating pressures (Xa, Xb) also actuate a logic valve, which in turn influences an additional valve, and/or actuates a pressure scale that is connected upstream to the control valve (10) having the control slide (12), the difference of the two actuating pressures (Xa, Xb) initially displaces the control slide of the control valve, wherein the higher or the lower of the two actuating pressures (Xa, Xb) either actuate the further valve in the form of the additional valve, and/or influences the pressure scale.

摘要翻译： 本发明涉及一种具有可调节控制阀（10）的阀门装置，包括用于致动至少一个消费者连接（A，B）并具有LS控制线的控制滑块（12），其中两个致动器 压力（Xa，Xb）用于控制滑块（12）的致动。 由于致动压力（Xa，Xb）也致动逻辑阀，这进而影响附加的阀，和/或致动连接到具有控制滑块的控制阀（10）的上游的压力表 12），两个致动压力（Xa，Xb）的差异最初使控制阀的控制滑块移位，其中两个致动压力（Xa，Xb）中较高或较低的驱动压力（Xa，Xb） 附加阀，和/或影响压力标尺。

公开(公告)号：US20080110509A1

公开(公告)日：2008-05-15

申请号：US11893987

申请日：2007-08-17

申请人： Leonard H. Hancock

发明人： Leonard H. Hancock

IPC分类号： F15B13/042 ,  F15B11/08

CPC分类号： F15B11/165 ,  F15B2211/20553 ,  F15B2211/253 ,  F15B2211/605 ,  Y10T137/87185

摘要： A load sense valve assembly includes a first valve in flow communication with a pump discharge line, a second valve in flow communication with the first valve, and a third valve in flow communication with the first valve. The first valve can be a solenoid actuated directional control valve. The second and third valves can be hydraulic pilot actuated directional control valves.

摘要翻译： 负载感测阀组件包括与泵排出管流动连通的第一阀，与第一阀流动连通的第二阀和与第一阀流动连通的第三阀。 第一个阀门可以是一个电磁致动的方向控制阀。 第二和第三阀可以是液压先导式方向控制阀。

公开(公告)号：US07263924B2

公开(公告)日：2007-09-04

申请号：US11392476

申请日：2006-03-29

申请人： Kensuke Ioku

发明人： Kensuke Ioku

IPC分类号： F15B11/00 ,  F16K17/00

CPC分类号： F15B11/044 ,  F15B2211/20538 ,  F15B2211/3051 ,  F15B2211/31576 ,  F15B2211/324 ,  F15B2211/50518 ,  F15B2211/50536 ,  F15B2211/5059 ,  F15B2211/5151 ,  F15B2211/5153 ,  Y10T137/87185

摘要： To simplify a circuit structure and a path structure in a hydraulic circuit having a pilot check valve and an overload relief valve and to reduce the size of a gear. The hydraulic circuit includes a pump port; a tank port; a first actuator port; a second actuator port; a first supply and discharge port; a second supply and discharge port; a direction changing valve; a first pilot check valve; a second pilot check valve; a first pilot path; and a first overload relief valve. The direction changing valve has a neutral position to communicate the first supply and discharge port with the tank port. The first overload relief valve is arranged in parallel with the first pilot check valve and is arranged between the first supply and discharge port and the first actuator port.

摘要翻译： 简化具有先导式止回阀和过载安全阀的液压回路中的电路结构和路径结构，并减小齿轮的尺寸。 液压回路包括泵口; 坦克港 第一执行器端口; 第二致动器端口; 第一个排水口; 第二个排放口; 方向切换阀; 第一个先导止回阀; 第二个先导止回阀; 第一个试点路径; 和第一个过载溢流阀。 方向切换阀具有中间位置，以将第一供排口与罐口连通。 第一过载安全阀与第一导向止回阀并联布置，并且布置在第一供排口和第一致动器端口之间。

公开(公告)号：US20060249016A1

公开(公告)日：2006-11-09

申请号：US11392476

申请日：2006-03-29

申请人： Kensuke Ioku

发明人： Kensuke Ioku

IPC分类号： F15B11/08

CPC分类号： F15B11/044 ,  F15B2211/20538 ,  F15B2211/3051 ,  F15B2211/31576 ,  F15B2211/324 ,  F15B2211/50518 ,  F15B2211/50536 ,  F15B2211/5059 ,  F15B2211/5151 ,  F15B2211/5153 ,  Y10T137/87185

摘要： To simplify a circuit structure and a path structure in a hydraulic circuit having a pilot check valve and an overload relief valve and to reduce the size of a gear. The hydraulic circuit includes a pump port; a tank port; a first actuator port; a second actuator port; a first supply and discharge port; a second supply and discharge port; a direction changing valve; a first pilot check valve; a second pilot check valve; a first pilot path; and a first overload relief valve. The direction changing valve has a neutral position to communicate the first supply and discharge port with the tank port. The first overload relief valve is arranged in parallel with the first pilot check valve and is arranged between the first supply and discharge port and the first actuator port.

摘要翻译： 简化具有先导式止回阀和过载安全阀的液压回路中的电路结构和路径结构，并减小齿轮的尺寸。 液压回路包括泵口; 坦克港 第一执行器端口; 第二致动器端口; 第一个排水口; 第二个排放口; 方向切换阀; 第一个先导止回阀; 第二个先导止回阀; 第一个试点路径; 和第一个过载溢流阀。 方向切换阀具有中间位置，以将第一供排口与罐口连通。 第一过载安全阀与第一导向止回阀并联布置，并且布置在第一供排口和第一致动器端口之间。

公开(公告)号：US06994116B2

公开(公告)日：2006-02-07

申请号：US10468175

申请日：2002-01-25

申请人： Peter Büttner

发明人： Peter Büttner

IPC分类号： F15B13/04

CPC分类号： F15B11/163 ,  F15B13/0417 ,  F15B2211/3144 ,  F15B2211/351 ,  F15B2211/76 ,  Y10T137/8671 ,  Y10T137/87185

摘要： A directional control valve for a hydraulic load has, in a piston bore of a valve housing, a control piston which can be displaced axially in opposite directions from a central position and which has first fine control grooves for opening a connection between a load chamber and a feed chamber. There are second fine control grooves for opening a connection between a load chamber and a discharge chamber of the piston bore under control. In its central position, there is a restricted relief connection from a load chamber to the discharge chamber via the control piston. The restricted relief connection is obtained via a recess in the control piston, independently of the second fine control grooves.

摘要翻译： 用于液压负载的方向控制阀在阀壳体的活塞孔中具有可从中心位置沿相反方向轴向位移的控制活塞，该控制活塞具有用于打开负载室和负载室之间的连接的第一精细控制槽 进料室。 存在用于在控制下打开活塞孔的负载室和排出室之间的连接的第二精细控制槽。 在其中心位置，通过控制活塞具有从负载室到排放室的有限的释放连接。 受限释放连接通过控制活塞中的凹部独立于第二精细控制槽获得。

公开(公告)号：US06971407B2

公开(公告)日：2005-12-06

申请号：US10734838

申请日：2003-12-12

申请人： Thorkild Christensen ,  Carsten Christensen ,  Siegfried Zenker

发明人： Thorkild Christensen ,  Carsten Christensen ,  Siegfried Zenker

IPC分类号： E02F9/22 ,  F15B13/04

CPC分类号： E02F9/2267 ,  E02F9/226 ,  F15B13/0402 ,  F15B13/0417 ,  Y10T137/87169 ,  Y10T137/87185

摘要： The invention concerns a hydraulic valve arrangement with a supply connection arrangement, which has a high-pressure connection (P) and a low-pressure connection (T), a working connection arrangement, which has two working connections (A, B), which can be connected with a consumer, a directional valve and a compensation valve arranged between the directional valve and the supply connection arrangement, the pressure outlet of the compensation valve being connected with a pressure inlet of the directional valve. It is endeavoured to avoid dangerous situations, which occur because of uncontrolled pressures. For this purpose, it is ensured that the compensation valve has a relief outlet, which can be connected with the pressure outlet.

摘要翻译： 本发明涉及具有供应连接装置的液压阀装置，其具有高压连接（P）和低压连接（T），工作连接装置具有两个工作连接（A，B），其中 可以与消费者连接，方向阀和布置在方向阀和供应连接装置之间的补偿阀，补偿阀的压力出口与方向阀的压力入口连接。 尽可能避免因不受控制的压力而发生的危险情况。 为此，确保补偿阀具有可与压力出口连接的泄压出口。

公开(公告)号：US20040237772A1

公开(公告)日：2004-12-02

申请号：US10716069

申请日：2003-11-18

申请人： VOLVO CONSTRUCTION EQUIPMENT HOLDING SWEDEN AB

发明人： Jin Wook Kim

IPC分类号： F15B011/08

CPC分类号： F15B13/0417 ,  E02F9/226 ,  E02F9/2267 ,  E02F9/2271 ,  Y10T137/87185

摘要： The present invention relates to a variable flow control apparatus for an actuator of a heavy construction equipment capable of implementing constant flow of hydraulic fluid from a hydraulic pump to an actuator even when a pilot pressure capable of driving a seat valve openably and closably installed in a discharge flow path of the hydraulic pump exceeds a certain pressure level. A variable flow control apparatus for an actuator of a heavy construction equipment is comprised of an actuator connected to a hydraulic pump, a directional control valve that is disposed between the hydraulic pump and the actuator and is adapted to control a start, stop and direction change of the actuator when a spool installed in a housing is switched, a first seat valve that is movably installed in the housing and has a variable throttle varying according to its movement, a second seat valve that is openably and closably installed between a pump path of the hydraulic pump and a upstream/downstream flow paths and has a variable throttle adapted to change opening area from the pump path to the flow paths when being moved relative to the first seat valve, a pilot flow control valve that has a pilot spool switchable by pilot pressure and is adapted to control the movement of the first and second seat valves, a third seat valve that is installed elastically and movably relative to the second seat valve and switched to direct constant flow from the hydraulic pump path to the downstream flow paths when pilot pressure over a certain level is applied to the pilot flow control valve and a sub-piston that is slidably installed in the interior of the pilot spool and expands opening area of the downstream flow paths of the hydraulic pump, which is in a throttling state, by switching the second seat valve in the upward direction when pressure of the downstream flow paths exceeds a certain pressure level.

摘要翻译： 本发明涉及一种用于重型施工设备的致动器的可变流量控制装置，其能够实现从液压泵到致动器的液压流体的恒定流量，即使当能够将座阀可开启和关闭地安装在 液压泵的排出流路超过一定的压力水平。 用于重型施工设备的致动器的可变流量控制装置包括连接到液压泵的致动器，设置在液压泵和致动器之间的方向控制阀，并且适于控制起动，停止和方向变化 当安装在壳体中的线轴被切换时，第一座阀可移动地安装在壳体中并且具有根据其运动而变化的可变节流阀;第二座阀，其可开启和关闭地安装在泵的路径 液压泵和上游/下游流动路径，并且具有可变节流阀，其适于在相对于第一座阀移动时改变从泵路径到流路的开口面积;先导流量控制阀，其具有可由 先导压力并且适于控制第一和第二座阀的运动，第三座阀相对于s弹性地和可移动地安装 并且当先导压力超过一定水平的导向流量控制阀和可滑动地安装在先导阀芯内部的副活塞时，切换到从液压泵路径到下游流路的恒定流量 并且当下游流路的压力超过一定的压力水平时，通过在向上的方向切换第二座阀，来扩大处于节流状态的液压泵的下游流路的开口面积。

公开(公告)号：US20040099316A1

公开(公告)日：2004-05-27

申请号：US10297215

申请日：2002-12-02

发明人： Wolfgang Koetter

IPC分类号： F15B013/04 ,  F15B013/08

CPC分类号： F15B13/0417 ,  F15B2013/006 ,  Y10T137/5109 ,  Y10T137/87169 ,  Y10T137/87185

摘要： A hydraulic control device (10, 90) for load pressure-independent control of a double-acting motor, in which by replacing the pressure balance regulator throttle slide valve element (68, 93) but using the same housing (13), the control device can be converted from a directional-control valve (11) with a primary individual pressure balance regulator (12) for load pressure-independent control to a directional-control valve (91) with a secondary individual pressure balance regulator (92) for an oil flow distribution in the event of undersupply. To this end, in a second longitudinal bore (41) containing the control pressure opening (68, 93), the housing (13) has three axially spaced infeeds of control pressure openings (51, 52, 53), which can be activated differently through interchangeable installation of a sealing plug (66) and a stopper (67) and, together with the respective throttle slide valve element, constitute a primary pressure balance regulator (12) or a secondary pressure balance regulator (92). The control device (10, 90) can be inexpensively produced for different functions using the same housing (13).

摘要翻译： 一种用于双作用电动机的负载压力独立控制的液压控制装置（10,90），其中通过更换压力平衡调节器节气门滑阀元件（68,93）但使用相同的壳体（13），控制 装置可以从具有主要单独压力平衡调节器（12）的方向控制阀（11）转换成用于负载压力独立控制到方向控制阀（91），具有辅助单独压力平衡调节器（92），用于 供油不足时的油流分布。 为此，在包含控制压力开口（68,93）的第二纵向孔（41）中，壳体（13）具有三个轴向间隔开的控制压力开口（51,52,53）的进给，其可以被不同地启动 通过可互换地安装密封塞（66）和塞子（67），并与相应的节气门滑阀元件一起构成主压力平衡调节器（12）或二次压力平衡调节器（92）。 使用相同的壳体（13）可以廉价地为不同的功能生产控制装置（10,90）。

公开(公告)号：US20040069359A1

公开(公告)日：2004-04-15

申请号：US10468175

申请日：2003-08-16

发明人： Peter Buttner

IPC分类号： F15B013/04

CPC分类号： F15B11/163 ,  F15B13/0417 ,  F15B2211/3144 ,  F15B2211/351 ,  F15B2211/76 ,  Y10T137/8671 ,  Y10T137/87185

摘要： The invention is based on a directional control valve which is used for the control, in particular the load-independent control, of a hydraulic load in terms of direction and speed. A known directional control valve of this kind has, in a piston bore of a valve housing, a control piston which can be displaced axially in opposite directions from a central position and which has first fine control grooves for opening a connection between a load chamber and a feed chamber under control, and second fine control grooves for opening a connection between a load chamber and a discharge chamber of the piston bore under control. In its central position, there is a restricted relief connection from a load chamber to the discharge chamber via the control piston. The restricted relief connection is obtained in the known directional control valve by the second fine control grooves being lengthened to such an extent that they already project into the load chambers in the rest position of the control piston. The invention is based on the object of developing such a directional control valve in such a way that, even at the start of opening the first fine control grooves, precise control of the hydraulic load is possible, and that the effort for the design of the fine control grooves is reduced. This object is achieved by the relief connection existing via a recess in the control piston, independently of the second fine control grooves, and, in the event of displacement of the control piston with the effect of connecting the load chamber to the discharge chamber, by the relief connection being interrupted before the second fine control grooves open a flow cross section. Accordingly, the second fine control grooves no longer have anything to do with relieving a load chamber. Their design can therefore be based only on the dimensions necessary for the desired control of the hydraulic load. At a predefined maximum flow rate, the second fine control grooves of the control piston can be the same as those on a control piston for a directional control valve with a blocked central piston.

公开(公告)号：US06267141B1

公开(公告)日：2001-07-31

申请号：US09487695

申请日：2000-01-19

申请人： Michel Rivolier

发明人： Michel Rivolier

IPC分类号： F15B1302

CPC分类号： F15B13/0417 ,  Y10T137/87169 ,  Y10T137/87185

摘要： A hydraulic directional control valve with a regulating balance comprising a plunger which can be displaced in a housing (13) under the action of a differential pressure (&Dgr;p) between the intake pressure (P) and the highest load pressure (LS), and which is designed to open, in proportion to this differential (&Dgr;p), a lateral orifice of the housing linked to a working orifice (A, B) of the directional control valve; the wall of the housing and/or the plunger is provided with a calibrated passage linking the intake of fluid at pressure (P) and the lateral orifice when the plunger is pushed back into an end position by the pressure (LS) exceeding the intake pressure (P); consequently, in spite of the excess value of the pressure (LS) intended to inhibit operation of the directional control valve, hydraulic fluid is delivered to the lateral orifice at a low rate and allows the hydraulic receiver controlled by the hydraulic directional control valve to be displaced at a low rate.

摘要翻译： 一种具有调节平衡的液压方向控制阀，包括可在进气压力（P）和最高负载压力（LS）之间的差压（DELTAp）的作用下在壳体（13）中移位的柱塞， 设计成与该差速器（DELTAP）成比例地打开连接到方向控制阀的工作孔口（A，B）的壳体的侧向孔口; 壳体和/或柱塞的壁设置有校准通道，当通过超过进气压力的压力（LS）将柱塞推回到终止位置时，压力（P）的流体和侧向孔口连接流体入口 （P）; 因此，尽管旨在抑制方向控制阀的操作的压力（LS）的过大值，但是液压流体以低速率输送到侧向孔口，并且允许由液压方向控制阀控制的液压接收器为 以低的速度流离失所。