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公开(公告)号：US07975598B2
公开(公告)日：2011-07-12
申请号：US11956917
申请日：2007-12-14
IPC分类号： F15B13/042
CPC分类号： F15B11/05 , E02F9/2225 , E02F9/2267 , F15B2211/20538 , F15B2211/30555 , F15B2211/329 , F15B2211/351 , F15B2211/50518 , F15B2211/50536 , F15B2211/55 , F15B2211/565 , F15B2211/6051 , F15B2211/7053 , F15B2211/7054
摘要： The invention concerns a hydraulic valve arrangement (1) with a supply connection arrangement comprising a high-pressure connection (P) and a low-pressure connection (T), a working connection arrangement comprising two working connections (A, B), which can be connected to a motor (4), a directional valve arrangement (5) located between the supply connection arrangement (P, T) and the working connection arrangement (A, B), and a compensation valve (15) acted upon in a first activation direction by a pressure in a first pressure chamber (33), which is connected to a load-sensing pipe (LS), and, if required, by a spring (32), and in a second activation direction opposite to the first activation direction by a pressure downstream of the directional valve arrangement (5), said pressure acting in a second pressure chamber (34), the compensation valve (15) having an inlet (14) and an outlet (19). In connection with a post-compensated valve, it is endeavored to adjust the load pressures at the working connections (A, B) in dependence of the direction. For this purpose, each working connection (A, B) is connected to a control system, which amplifies the effect of the pressure in the first pressure chamber (33) on the compensation valve (15) in dependence of a pressure ruling at the working connection (A, B).
摘要翻译： 本发明涉及具有包括高压连接（P）和低压连接（T）的供应连接装置的液压阀装置（1），包括两个工作连接（A，B）的工作连接装置，其可以 连接到电动机（4），位于供应连接装置（P，T）和工作连接装置（A，B）之间的方向阀装置（5）和补偿阀（15） 通过连接到负载传感管（LS）的第一压力室（33）中的压力，以及如果需要，通过弹簧（32）和在与第一激活相反的第二激活方向上的压力的激活方向 方向阀装置（5）下游的压力，所述压力作用在第二压力室（34）中，补偿阀（15）具有入口（14）和出口（19）。 结合补偿后阀门，努力根据方向调整工作连接（A，B）的负载压力。 为此，每个工作连接（A，B）连接到控制系统，该控制系统根据工作中的压力判定放大第一压力室（33）中的压力对补偿阀（15）的影响 连接（A，B）。
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公开(公告)号：US20080245222A1
公开(公告)日：2008-10-09
申请号：US11956917
申请日：2007-12-14
IPC分类号： F15B13/042 , F15B11/00 , F15B11/05
CPC分类号： F15B11/05 , E02F9/2225 , E02F9/2267 , F15B2211/20538 , F15B2211/30555 , F15B2211/329 , F15B2211/351 , F15B2211/50518 , F15B2211/50536 , F15B2211/55 , F15B2211/565 , F15B2211/6051 , F15B2211/7053 , F15B2211/7054
摘要： The invention concerns a hydraulic valve arrangement (1) with a supply connection arrangement comprising a high-pressure connection (P) and a low-pressure connection (T), a working connection arrangement comprising two working connections (A, B), which can be connected to a motor (4), a directional valve arrangement (5) located between the supply connection arrangement (P, T) and the working connection arrangement (A, B), and a compensation valve (15) acted upon in a first activation direction by a pressure in a first pressure chamber (33), which is connected to a load-sensing pipe (LS), and, if required, by a spring (32), and in a second activation direction opposite to the first activation direction by a pressure downstream of the directional valve arrangement (5), said pressure acting in a second pressure chamber (34), the compensation valve (15) having an inlet (14) and an outlet (19). In connection with a post-compensated valve, it is endeavoured to adjust the load pressures at the working connections (A, B) in dependence of the direction. For this purpose, each working connection (A, B) is connected to a control system, which amplifies the effect of the pressure in the first pressure chamber (33) on the compensation valve (15) in dependence of a pressure ruling at the working connection (A, B).
摘要翻译： 本发明涉及具有包括高压连接（P）和低压连接（T）的供应连接装置的液压阀装置（1），包括两个工作连接（A，B）的工作连接装置，其可以 连接到电动机（4），位于供应连接装置（P，T）和工作连接装置（A，B）之间的方向阀装置（5）和补偿阀（15） 通过连接到负载传感管（LS）的第一压力室（33）中的压力，以及如果需要，通过弹簧（32）和在与第一激活相反的第二激活方向上的压力的激活方向 方向阀装置（5）下游的压力，所述压力作用在第二压力室（34）中，补偿阀（15）具有入口（14）和出口（19）。 结合补偿后阀门，努力根据方向调整工作连接（A，B）的负载压力。 为此，每个工作连接（A，B）连接到控制系统，该控制系统根据工作中的压力判定放大第一压力室（33）中的压力对补偿阀（15）的影响 连接（A，B）。
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公开(公告)号：US20080224073A1
公开(公告)日：2008-09-18
申请号：US11956833
申请日：2007-12-14
IPC分类号： F16K31/12
CPC分类号： F15B11/163 , E02F9/2267 , F15B2211/30515 , F15B2211/30555 , F15B2211/3111 , F15B2211/50527 , F15B2211/6054 , F15B2211/71 , Y10T137/87169 , Y10T137/87885
摘要： The invention concerns a hydraulic valve arrangement (1) with several valve modules (2-6), each having a supply channel arrangement with a high-pressure channel (7) and a low-pressure channel (8), a working connection arrangement with at least one working connection (A, B), a directional valve arrangement (15, 16) between the supply channel arrangement and the working connection arrangement and a compensation arrangement (19, 28). It is endeavoured to improve the control possibilities. For this purpose, it is provided that in at least one valve module (3, 5) the compensation arrangement is a pre-compensation arrangement (19) and in at least one other valve module (4, 6) the compensation arrangement is a post-compensation arrangement (28).
摘要翻译： 本发明涉及具有多个阀模块（2-6）的液压阀装置（1），每个阀模块具有一个具有高压通道（7）和低压通道（8）的供应通道装置，工作连接装置具有 在所述供应通道装置和所述工作连接装置之间的至少一个工作连接（A，B），方向阀装置（15,16）和补偿装置（19,28）。 努力提高控制的可能性。 为此，规定在至少一个阀模块（3,5）中，补偿装置是预补偿装置（19），并且在至少一个其它阀模块（4,6）中，补偿装置是一个柱 - 补偿安排（28）。
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公开(公告)号：US4981159A
公开(公告)日：1991-01-01
申请号：US442447
申请日：1989-11-27
CPC分类号： F15B13/0417 , Y10T137/8671 , Y10T137/87185
摘要： A hydraulic control valve and sensing mechanism for controlling flow between a motor and a pump and container that includes a slide mounted in a housing bore for movement between a neutral position and two operative position. The slide has a central collar separated from end collars by slide grooves, profilings on diametric opposite sides of the slide grooves intersecting each groove. The housing bore has a pump groove supplied with pressure medium, axially opposite motor grooves connectable to motor conduits, and axially opposite the motor grooves from the pump grooves there are container grooves connectable to the container. The pressure sensing mechanism includes at least one pressure sensing orifice that is connected to the pressure to be sensed in an operative position of the slide but not being fluidly connected thereto when the slide is in its neutral position.
摘要翻译： 一种用于控制电动机和泵和容器之间的流动的液压控制阀和感测机构，其包括安装在壳体孔中的滑块，用于在空档位置和两个操作位置之间移动。 滑块具有通过滑动槽与端部环分开的中心轴环，在与每个凹槽相交的滑动槽的直径相对侧上的剖面。 容纳孔具有供应有压力介质的泵槽，与马达导管连接的轴向相对的马达槽，并且与泵槽轴向相对的马达槽具有可连接到容器的容器槽。 压力感测机构包括至少一个压力感测孔口，当压载体处于其中立位置时，该压力感测孔口连接到滑动件的操作位置中的被感测压力，但不与其流体连接。
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15.发明授权Damping arrangement for damping the oscillations of valve controlled by pressure fluid 失效用于阻尼由压力流体控制的阀振荡的阻尼装置
公开(公告)号：US4955194A
公开(公告)日：1990-09-11
申请号：US418969
申请日：1989-10-10
IPC分类号： F15B11/00 , F15B11/05 , F15B21/04 , F16K31/00 , F16K31/64 , F16K31/70 , F16K47/00 , F16L55/027
CPC分类号： F15B11/003 , F15B21/045 , F16K31/002 , F16K47/00 , F16L55/027 , F15B2211/20553 , F15B2211/30535 , F15B2211/31576 , F15B2211/324 , F15B2211/40515 , F15B2211/413 , F15B2211/41581 , F15B2211/428 , F15B2211/46 , F15B2211/50545 , F15B2211/8613
摘要： A damping arrangement for damping the oscillations of valves which are controlled by pressure fluid and the control pressure conduits of which contain a throttle. A characteristic is that initial oscillations can be rapidly stabilized independently of the operating temperature of the pressure fluid. This is accomplished by the throttle having a throttle gap of which the height varies oppositely to the temperature of the pressure fluid so as to compensate fully or partially for changes in the hydraulic resistance that are occasioned by the temperature. The throttle gap is mostly traversed by laminar flow and consequently there is a high hydraulic throttling resistance even at low speeds of flow. The throttle is therefore also adapted effectively to damp small oscillations of the valve element so that the initial oscillations are rapidly stabilized.
摘要翻译： 一种阻尼装置，用于阻尼由压力流体控制的阀的振荡，并且其控制压力管道包含油门。 其特征是初始振荡可以独立于压力流体的操作温度而迅速稳定。 这是通过节气门实现的，其节气门间隙的高度与压力流体的温度相反地变化，以便完全或部分地补偿由温度引起的液压阻力的变化。 油门间隙主要是通过层流运动，因此即使在低流速下也存在高液压节流阻力。 因此，节气门也有效地适应于阻止阀元件的小振荡，使得初始振荡快速稳定。
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公开(公告)号：US08528460B2
公开(公告)日：2013-09-10
申请号：US13098563
申请日：2011-05-02
IPC分类号： F15B13/042
CPC分类号： F15B11/05 , E02F9/2225 , E02F9/2267 , F15B2211/20538 , F15B2211/30555 , F15B2211/329 , F15B2211/351 , F15B2211/50518 , F15B2211/50536 , F15B2211/55 , F15B2211/565 , F15B2211/6051 , F15B2211/7053 , F15B2211/7054
摘要： The invention concerns a hydraulic valve arrangement (1) with a supply connection arrangement comprising a high-pressure connection (P) and a low-pressure connection (T), a working connection arrangement comprising two working connections (A, B), which can be connected to a motor (4), a directional valve arrangement (5) located between the supply connection arrangement (P, T) and the working connection arrangement (A, B), and a compensation valve (15) acted upon in a first activation direction by a pressure in a first pressure chamber (33), which is connected to a load-sensing pipe (LS), and, if required, by a spring (32), and in a second activation direction opposite to the first activation direction by a pressure downstream of the directional valve arrangement (5), said pressure acting in a second pressure chamber (34), the compensation valve (15) having an inlet (14) and an outlet (19). In connection with a post-compensated valve, it is endeavored to adjust the load pressures at the working connections (A, B) in dependence of the direction. For this purpose, each working connection (A, B) is connected to a control system, which amplifies the effect of the pressure in the first pressure chamber (33) on the compensation valve (15) in dependence of a pressure ruling at the working connection (A, B).
摘要翻译： 本发明涉及具有包括高压连接（P）和低压连接（T）的供应连接装置的液压阀装置（1），包括两个工作连接（A，B）的工作连接装置，其可以 连接到电动机（4），位于供应连接装置（P，T）和工作连接装置（A，B）之间的方向阀装置（5）和补偿阀（15） 通过连接到负载传感管（LS）的第一压力室（33）中的压力，以及如果需要，通过弹簧（32）和在与第一激活相反的第二激活方向上的压力的激活方向 方向阀装置（5）下游的压力，所述压力作用在第二压力室（34）中，补偿阀（15）具有入口（14）和出口（19）。 结合补偿后阀门，努力根据方向调整工作连接（A，B）的负载压力。 为此，每个工作连接（A，B）连接到控制系统，该控制系统根据工作中的压力判定放大第一压力室（33）中的压力对补偿阀（15）的影响 连接（A，B）。
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公开(公告)号：US07770596B2
公开(公告)日：2010-08-10
申请号：US11956833
申请日：2007-12-14
IPC分类号： F15B13/08
CPC分类号： F15B11/163 , E02F9/2267 , F15B2211/30515 , F15B2211/30555 , F15B2211/3111 , F15B2211/50527 , F15B2211/6054 , F15B2211/71 , Y10T137/87169 , Y10T137/87885
摘要： The invention concerns a hydraulic valve arrangement (1) with several valve modules (2-6), each having a supply channel arrangement with a high-pressure channel (7) and a low-pressure channel (8), a working connection arrangement with at least one working connection (A, B), a directional valve arrangement (15, 16) between the supply channel arrangement and the working connection arrangement and a compensation arrangement (19, 28). It is endeavoured to improve the control possibilities. For this purpose, it is provided that in at least one valve module (3, 5) the compensation arrangement is a pre-compensation arrangement (19) and in at least one other valve module (4, 6) the compensation arrangement is a post-compensation arrangement (28).
摘要翻译： 本发明涉及具有多个阀模块（2-6）的液压阀装置（1），每个具有一个具有高压通道（7）和低压通道（8）的供应通道装置，一个工作连接装置 在所述供应通道装置和所述工作连接装置之间的至少一个工作连接（A，B），方向阀装置（15,16）和补偿装置（19,28）。 努力提高控制的可能性。 为此，规定在至少一个阀模块（3,5）中，补偿装置是预补偿装置（19），并且在至少一个其它阀模块（4,6）中，补偿装置是一个柱 - 补偿安排（28）。
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公开(公告)号：US5323687A
公开(公告)日：1994-06-28
申请号：US967679
申请日：1992-10-23
摘要： A hydraulic circuit for a backhoe loader having two double-acting cylinders for the arm and bucket of the loader and respective directional valves for the cylinders. There are heavy demands on the oil pump of the system when the two cylinders are moved simultaneously from one extreme position to another which requires substantially two whole cylinder volumes of oil. The cylinders are arranged in parallel relative to the pump. A first source of pressure medium displaced from one cylinder is used to perform work in the other cylinder and the other cylinder is also supplied with a second source of pressure medium directly from a pump. The line section through which the first source of pressure medium is supplied is shunted to a tank by valving apparatus upon a predetermined pressure being reached to freely accommodate the simultaneous movements of the cylinders.
摘要翻译： 一种用于挖掘装载机的液压回路，其具有用于装载机的臂和铲斗的两个双作用缸以及用于缸的相应方向阀。 当两个气缸同时从一个极限位置移动到另一个极限位置时，对系统的油泵有很大的要求，这需要大致两个整个气缸体积的油。 气缸相对于泵平行布置。 使用从一个气缸移位的第一压力介质源在另一个气缸中进行工作，另一个气缸也直接从泵供应第二压力介质源。 在达到预定压力时，供应第一压力介质源的管段部分通过阀装置分流到罐中，以自由地容纳气缸的同时运动。
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公开(公告)号：US5337778A
公开(公告)日：1994-08-16
申请号：US40141
申请日：1993-03-30
IPC分类号： F15B11/028 , F15B11/05 , F15B11/16 , F15B13/08 , F16K17/02
CPC分类号： F15B11/165 , F15B2211/205 , F15B2211/30515 , F15B2211/30535 , F15B2211/3111 , F15B2211/323 , F15B2211/6054 , F15B2211/7054 , F15B2211/71 , Y10T137/2597 , Y10T137/263 , Y10T137/87185
摘要： A pressure control valve of the type having pump, tank and load-sensing connections used in conjunction with one or more proportional type valves. In this type of system a load-sensing signal is tapped off from the output side of the proportional valves and conveyed to the load-sensing connection of the pressure control valve. A pressure control valve of the type herein has load-sensing and pressure chambers at opposite ends thereof with a slide valve therebetween which is spring biased towards the pressure chamber and controls the internal flow from the pump connection to the tank connection. The slide valve has an auxiliary change-over type valve which selectively connects the pressure chamber to the pump and load-sensing connections in response to a pressure differential between the pump and load-sensing connections to achieve a pressure balance between the load-sensing chamber and the pressure chamber.
摘要翻译： 一种具有泵，罐和负载传感连接类型的压力控制阀，与一个或多个比例型阀一起使用。 在这种类型的系统中，负载感测信号从比例阀的输出侧分接，并被传送到压力控制阀的负载感测连接。 这种类型的压力控制阀在其相对端具有负载感测和压力室，其间具有一个滑阀，弹簧偏压朝向压力室，并控制从泵连接到罐连接的内部流。 滑阀具有辅助换向阀，其响应于泵和负载感测连接之间的压力差选择性地将压力室连接到泵和负载感测连接，以实现负载感测室 和压力室。
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20.发明授权公开(公告)号：US08530191B2
公开(公告)日：2013-09-10
申请号：US12714900
申请日：2010-03-01
申请人： Peter Becker , Thorkild Christensen
发明人： Peter Becker , Thorkild Christensen
CPC分类号： C07K1/1136 , C07K14/61
摘要： A method for reducing or substantially preventing formation of a trisulfide derivative of a polypeptide in a liquid medium containing the polypeptide ijn question comprises stripping the liquid medium with a gas, suitably a chemically unreactive gas such as nitrogen or argon.
摘要翻译： 减少或基本上阻止在含有多肽问题的液体介质中形成多肽的三硫化物衍生物的方法包括用合适的化学反应性气体如氮气或氩气气体汽提液体介质。
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