公开(公告)号：US07993111B2

公开(公告)日：2011-08-09

申请号：US11968821

申请日：2008-01-03

申请人： Samir Joshi ,  Leonard F. Bishop ,  Douglas C. Myers

发明人： Samir Joshi ,  Leonard F. Bishop ,  Douglas C. Myers

IPC分类号： F04B49/00 ,  F16D31/02 ,  F15B11/08

CPC分类号： B62D5/062 ,  F15B21/047

摘要： An apparatus for preventing noise from occurring due to cavitation in a power steering pump during low temperature start-up includes the addition of a multi-passage orifice element for adding wetted surface resistance to high viscous fluid flow downstream from a single passage outlet orifice element of a fluid flow control device and upstream of an associated steering gear or steering assist valve.

摘要翻译： 一种用于在低温启动期间防止由于动力转向泵中气穴引起的噪声的装置，包括添加多通道孔元件，用于向来自单个通道出口孔元件的下游的高粘性流体流增加润湿表面电阻 流体流量控制装置和相关联的舵机或转向辅助阀的上游。

公开(公告)号：US20100065135A1

公开(公告)日：2010-03-18

申请号：US12448417

申请日：2007-10-26

申请人： Winfried Rüb

发明人： Winfried Rüb

IPC分类号： F15B11/024 ,  F15B11/16 ,  F15B21/04

CPC分类号： F15B11/024 ,  F15B11/16 ,  F15B21/047 ,  F15B2211/50545 ,  F15B2211/50554 ,  F15B2211/528 ,  F15B2211/555 ,  F15B2211/565 ,  F15B2211/7135 ,  F15B2211/86 ,  Y10T137/2554 ,  Y10T137/2632 ,  Y10T137/2657 ,  Y10T137/2678 ,  Y10T137/2708 ,  Y10T137/7904

摘要： The invention relates to a controlling device for hydraulic consumers (10, 12) with at least one controlling valve (18) for controlling a supply pipeline (TReg) for the respective hydraulic consumer (10, 12) and with a tank return pipeline (TR0). Because the control valve (18) is connected to an additional supply pipeline (T0) and constructed as a priority valve in such a manner that the supply pipeline (TReg) receives priority preference of a fluid supply system over the priority of the tank return pipeline (TR0), a type of sensor circuit is realized which checks whether, in accordance with the load situation at the hydraulic consumer (10, 12), then is any need at all for a supply flow.

摘要翻译： 本发明涉及一种用于液压消耗器（10,12）的控制装置，其具有至少一个控制阀（18），用于控制用于各个液压消耗器（10,12）的供应管道（TReg）和用于回油管道（TR0 ）。 因为控制阀（18）连接到附加供油管道（T0）并且被构造为优先阀，使得供应管线（TReg）优先考虑流体供应系统优先于罐返回管线 （TR0），实现了一种类型的传感器电路，其检查根据液压消耗器（10,12）的负载情况，根本是否需要供应流量。

公开(公告)号：US20090217983A1

公开(公告)日：2009-09-03

申请号：US12282686

申请日：2007-02-08

申请人： Wolfgang Kauss ,  Vincenzo Bollero

发明人： Wolfgang Kauss ,  Vincenzo Bollero

IPC分类号： F16K17/02

CPC分类号： F15B13/0403 ,  F15B21/047 ,  Y10T137/2605

摘要： The invention relates to a hydraulic valve arrangement which is used, in particular, for a mobile machine and which has a valve housing (10) having a feed channel (34), having an outlet channel (42) and having a consumer channel (39) and has a valve bore (11) which cuts into the channels. In the valve bore (11), a valve slide (12) can be moved axially from a neutral position in at least one direction into a working position, by way of which valve slide (12) the fluidic connections between the channels can be controlled. Moreover, there is a pressure-relief and feed valve (45, 47), by way of which the pressure in the consumer channel (39) can be limited by throttled discharge of pressure fluid into the outlet channel (42) and pressure fluid can be fed from the outlet channel (42) into the consumer channel (39). The invention is based on the object of designing a hydraulic valve arrangement of this type in such a way that low manufacturing costs and a small overall size are possible. According to the invention, the object which is aimed at is achieved by the pressure-relief and feed valve (45, 47) being accommodated in a hollow space of the valve slide (12).

摘要翻译： 本发明涉及一种液压阀装置，该液压阀装置特别用于移动式机器，并具有一个具有进料通道（34）的阀壳体（10），该进料通道具有出口通道（42）并具有消耗通道（39） ）并且具有切入通道的阀孔（11）。 在阀孔（11）中，阀滑块（12）可以在至少一个方向上的中立位置轴向移动到工作位置，通过该滑阀（12）可以控制通道之间的流体连接 。 此外，还有一个减压和进给阀（45,47），通过这个压力释放和进给阀（45,47），消耗通道（39）中的压力可以通过将压力流体节流地排放到出口通道（42）中来限制，而压力流体 从出口通道（42）进入消费者通道（39）。 本发明是基于这样一种液压阀装置的设计，其目的在于使制造成本低，整体尺寸小。 根据本发明，通过减压阀和进料阀（45,47）容纳在阀滑块（12）的中空空间中来实现目标物体。

公开(公告)号：US20080178587A1

公开(公告)日：2008-07-31

申请号：US12015189

申请日：2008-01-16

申请人： Harry J Last

发明人： Harry J Last

IPC分类号： F16D31/02 ,  F16H61/40

CPC分类号： F16H61/456 ,  F15B21/047 ,  F15B2211/20561 ,  F15B2211/613 ,  F15B2211/7058 ,  F16D31/02 ,  F16H61/4043 ,  F16H61/4183

摘要： An improved anti-cavitation hydraulic manifold for hydraulically coupling the hydraulic input and output of two, drive coupled, reversible hydraulic motors and a reversible source of hydraulic power for winding and unwinding systems is described wherein a stop confines a shuttle ball within each of two input/output (I/O) chambers receiving driving hydraulic input liquid from the reversible source of hydraulic power between an annular valve seat around a bypass passage communicating between the bases of the input/output (I/O) chambers and any ports penetrating into the respective input/output (I/O) chambers supplying high pressure or driving hydraulic input from the reversible source of hydraulic power where, responsive to supplied high pressure or driving hydraulic input to a particular I/O chamber, the shuttle ball in the chamber seats upon the particular annular valve seat translating a shuttle rod in the bypass passage unseating the particular shuttle ball from the annular valve seat around the passageway in the other I/O chamber.

摘要翻译： 描述了一种用于液压耦合两个驱动耦合的可逆液压马达的液压输入和输出以及用于卷绕和退绕系统的可逆的液压动力源的改进的防空化液压歧管，其中止动器将穿梭球限制在两个输入 在输入/输出（I / O）室的基座之间连通的旁通通道周围的环形阀座和贯穿所述输入/输出（I / O）室的任何孔之间，从可逆的液压动力源驱动液压输入液体 提供高压的相应输入/输出（I / O）腔室或从可逆式液压动力源驱动液压输入，其中响应于提供的高压或驱动液压输入到特定I / O室，腔室座中的穿梭球 在特定的环形阀座上，使穿梭杆在旁路通道中平移，使特定的梭球从环形阀海上移开 围绕另一个I / O室的通道。

公开(公告)号：US20080110167A1

公开(公告)日：2008-05-15

申请号：US11791744

申请日：2005-11-21

申请人： Dieter Laukemann ,  Karl Mondorf ,  Werner Adams ,  Achim Neher ,  Heinz Holler ,  Jurgen Wolf

发明人： Dieter Laukemann ,  Karl Mondorf ,  Werner Adams ,  Achim Neher ,  Heinz Holler ,  Jurgen Wolf

IPC分类号： F16D31/02

CPC分类号： F15B21/047 ,  F15B1/265 ,  F16D33/16

摘要： The invention concerns a combined relief and positive surge protection device for operating fluid containers that can be put under pressure in operating fluid supply systems of hydrodynamic machines with a housing; with an inlet chamber that can be coupled to the inner space of the operating fluid container and an outlet chamber that can be coupled to a relief space; with a relief valve that comprises a valve component that is supported in the housing in such a way that it can be displaced, and a valve seat that is arranged stationary in the housing, whereby the valve seat is arranged in such a way that it, in cooperation with the valve component, blocks the connection between the inlet chamber and the outlet chamber; with an actuation mechanism that is assigned to the valve component; with a positive surge protection device comprising a positive surge plate that can be guided outside the housing on a guidance element that is connected to the valve component, whereby the guidance element contains, on its end region that is opposite from the valve component, a limit stop for the motion of the positive surge plate. with a seat on the housing that, in cooperation with the positive surge plate, closes the inlet chamber, whereby at least one throttle point is provided between the positive surge plate and the guidance element.

摘要翻译： 本发明涉及一种用于操作流体容器的组合的释放和积极浪涌保护装置，其可以在具有壳体的流体动力学机械的工作流体供应系统中被施加压力; 其具有能够联接到工作流体容器的内部空间的入口室和可联接到浮雕空间的出口室; 具有安全阀，该安全阀包括以能够移位的方式支撑在壳体中的阀部件，以及静止地设置在壳体中的阀座，由此阀座以这样的方式布置， 与阀组件协作，阻止入口室和出口室之间的连接; 具有分配给阀部件的致动机构; 具有正浪涌保护装置，其包括正喘振板，该正浪涌板可以在连接到阀部件的引导元件上引导到壳体外部，由此引导元件在其与阀部件相对的端部区域上包含极限 停止正浪涌板的运动。 在壳体上具有座位，其与正浪涌板协作关闭入口室，由此在正浪涌板和引导元件之间提供至少一个节气门点。

公开(公告)号：US07302798B2

公开(公告)日：2007-12-04

申请号：US10885109

申请日：2004-07-07

申请人： Steve Carlton Smith ,  Masami Kimoto ,  Takashi Imanishi ,  Teruaki Kabeya

发明人： Steve Carlton Smith ,  Masami Kimoto ,  Takashi Imanishi ,  Teruaki Kabeya

IPC分类号： F04F5/00 ,  F04C15/00 ,  B62D5/06

CPC分类号： F15B1/26 ,  B62D5/062 ,  B62D5/075 ,  F15B1/265 ,  F15B21/047

摘要： A hydraulic system for a motor vehicle is provided with a pump suction enhancer includes a body section defining a small chamber, a venturi tube passage exposed to the small chamber at an inner end thereof and connected to the suction port of the oil pump, and a nozzle protruding into the small chamber to face the inner end of the venturi tube passage with a space relative to the venturi tube passage in axial alignment with the same. The flow divider divides the operating oil discharged from the oil pump into a return flow to the pump suction enhancer and a supply flow which passes through a power steering device to return to an oil reservoir. The pump suction enhancer may be integrally formed with the oil reservoir or provided as a discrete component separated from the oil reservoir, oil pump and the flow divider.

摘要翻译： 一种用于机动车辆的液压系统设置有泵抽吸增强器，其包括限定小室的主体部分，在其内端处暴露于小室并连接到油泵的吸入口的文丘里管通道，以及 喷嘴突出到小室中，以相对于文丘里管通道的空间相对于文丘里管通道的内端轴向对准。 分流器将从油泵排出的工作油分离成泵吸力增强器的返回流和通过动力转向装置返回到储油器的供给流。 泵吸力增强器可以与储油器一体地形成，或者作为与储油器，油泵和分流器分离的分立部件提供。

公开(公告)号：US20050229594A1

公开(公告)日：2005-10-20

申请号：US11086392

申请日：2005-03-23

申请人： Takao Nanjo ,  Naoki Sugano ,  Etsujiro Imanishi ,  Yutaka Toji ,  Hidekazu Oka

发明人： Takao Nanjo ,  Naoki Sugano ,  Etsujiro Imanishi ,  Yutaka Toji ,  Hidekazu Oka

IPC分类号： E02F9/22 ,  F15B11/02 ,  F15B11/064 ,  F15B11/16 ,  F15B11/17 ,  F15B21/04 ,  B60T8/34

CPC分类号： E02F9/2225 ,  E02F9/2228 ,  E02F9/226 ,  E02F9/2282 ,  E02F9/2292 ,  F15B11/17 ,  F15B21/047 ,  F15B2211/20546 ,  F15B2211/20576 ,  F15B2211/30505 ,  F15B2211/3116 ,  F15B2211/50518 ,  F15B2211/5156 ,  F15B2211/555 ,  F15B2211/7142

摘要： A hydraulic control system of the present invention comprising control valves for controlling the direction and flow rate of pressure oil discharged from a hydraulic pump, hydraulic actuators which the pressure oil is fed to and controlled by the control valves, the hydraulic actuators including hydraulic cylinders and a hydraulic motor, and a first return passage provided as a passage for returning return oil present at the head side of one of the hydraulic cylinders to the tank, the first return passage being in communication with the tank, and a second return passage for returning return oil from each of the other hydraulic actuators including the hydraulic motor except for the hydraulic cylinders to the tank, the second return passage having a back pressure check valve and a replenishing passage, the replenishing passage being configured so as to provide a back pressure developed by the back pressure check valve to the low pressure side of each of the other hydraulic actuators to prevent cavitations.

摘要翻译： 本发明的液压控制系统包括用于控制从液压泵排出的压力油的方向和流量的控制阀，压力油被控制阀供给和控制的液压致动器，包括液压缸的液压致动器和 液压马达和第一返回通道，其设置为用于将存在于一个液压缸的头部侧的返回油返回到罐的通道，第一返回通道与罐连通，第二返回通道用于返回 将除了液压缸以外的液压马达的液压驱动器的各个液压致动器的油返回到油箱，第二返回通路具有背压止回阀和补充通路，所述补充通路构成为提供背压 通过背压单向阀到每个其他液压致动器的低压侧 恢复空洞。

公开(公告)号：US06929088B2

公开(公告)日：2005-08-16

申请号：US10353366

申请日：2003-01-29

申请人： Ulrich Wienecke

发明人： Ulrich Wienecke

IPC分类号： B62D5/083 ,  B62D6/02 ,  F15B21/04 ,  B62D5/06

CPC分类号： B62D5/083 ,  B62D6/02 ,  F15B21/047 ,  Y10T137/86743

摘要： A power steering system includes a rotary slide valve which has a housing, an input shaft and an output shaft which can be rotated relative to each other to a limited extent. A centering piston is provided which is non-rotatably and axially movably connected with the input shaft and delimits a pressure space in the housing. The rotary slide valve further comprises a centering ring which is non-rotatably connected with the output shaft, and arm inlet to the pressure chamber. The pressure chamber has a controlled outlet. There is also proposed a method of operating such a power steering system.

摘要翻译： 动力转向系统包括旋转滑阀，其具有壳体，输入轴和输出轴，其可以相对于彼此旋转到有限的程度。 设置有定心活塞，其不可旋转地和轴向地可移动地与输入轴连接并限定壳体中的压力空间。 旋转滑阀还包括与输出轴不可旋转地连接的定心环和到压力室的臂入口。 压力室具有受控的出口。 还提出了一种操作这种动力转向系统的方法。

公开(公告)号：US20050092375A1

公开(公告)日：2005-05-05

申请号：US10883111

申请日：2004-07-01

申请人： Min Kim

发明人： Min Kim

IPC分类号： B62D5/07 ,  B60T17/06 ,  B62D5/06 ,  F15B21/04 ,  B60T11/26

CPC分类号： F15B21/047 ,  B60T17/06 ,  B62D5/062 ,  Y10T137/8122 ,  Y10T137/86212 ,  Y10T137/86228

摘要： A reservoir tank of power steering system for a car includes an inlet port delivering oil through a swirl prevention member. The oil is then allowed to flow so swirl does not form in the oil flow of a reservoir tank. Furthermore, bubble formation in the oil is minimized.

摘要翻译： 用于汽车的动力转向系统的储罐包括通过涡流防止构件输送油的入口。 然后允许油流动，从而在储存罐的油流中不形成旋流。 此外，油中的气泡形成最小化。

公开(公告)号：US20050039805A1

公开(公告)日：2005-02-24

申请号：US10645967

申请日：2003-08-22

申请人： Mark Cherney

发明人： Mark Cherney

IPC分类号： F15B11/024 ,  F15B13/04 ,  F15B21/04 ,  F17D1/00

CPC分类号： F15B21/047 ,  F15B13/0402 ,  F15B2013/0413 ,  F15B2211/30525 ,  F15B2211/3127 ,  F15B2211/8609 ,  Y10T137/8671

摘要： A spool-type hydraulic directional control valve having improvements to reduce cavitation when the spool is in the float position. The flow area of a first passageway on the valve spool is appropriately sized to reduce the flow hydraulic fluid flow from the head end of the hydraulic cylinder to the hydraulic fluid reservoir, such that a sufficient proportion of that hydraulic fluid instead flows internally through control valve and back to the rod end of the hydraulic cylinder to reduce cavitation when the valve spool is in the “float” position. Additionally, a second passageway on the valve spool may be blocked-off, eliminating the hydraulic fluid flow path from the hydraulic fluid reservoir to the rod end of the hydraulic cylinder when the valve spool is in the “float” position.