公开(公告)号：US4072169A

公开(公告)日：1978-02-07

申请号：US702860

申请日：1976-07-06

申请人： Joachim Heiser ,  Rainer Hoheisel ,  Heinz Flaschar ,  Heinz Gand ,  Heinz Kleinschmidt ,  Konrad Braunlinger ,  Klaus Sopha ,  Roland Schempp ,  Hermann Sanzenbacher

发明人： Joachim Heiser ,  Rainer Hoheisel ,  Heinz Flaschar ,  Heinz Gand ,  Heinz Kleinschmidt ,  Konrad Braunlinger ,  Klaus Sopha ,  Roland Schempp ,  Hermann Sanzenbacher

IPC分类号： F15B11/08 ,  F15B13/043 ,  F16K11/07

CPC分类号： F15B13/043 ,  Y10T137/86614 ,  Y10T137/87185

摘要： A hydraulic control system has a three-position valve which in its central position disconnects the high-pressure and low-pressure sides of a pressure source from outlet lines but connects these sides of the source together through a low-pressure valve. Moved to either of its end positions the valve is disconnected from between the sides of the pressure source and the output lines are connected to the high-pressure and low-pressure source sides. A pressure-limiting valve is connected between the sides of the source. In addition, the high-pressure side is connected via pressure-reducing valve and a restriction to a pair of pilot valves which are in turn connected to the low-pressure side. These pilot valves are also connected to opposite chambers of a pilot cylinder that controls the valve body. The pressure-reducing valve between the pilot valves and the high-pressure side maintains a medium-pressure level in the system when the valves move from its central position.

摘要翻译： 液压控制系统具有三位置阀，其中心位置将压力源的高压侧和低压侧与出口管线分离，但是通过低压阀将源的这些侧面连接在一起。 移动到其任一端，阀从压力源的侧面断开，输出线连接到高压和低压源侧。 限流阀连接在源的侧面之间。 此外，高压侧通过减压阀和限制器连接到一对先导阀，导向阀又连接到低压侧。 这些先导阀也连接到控制阀体的先导缸的相对的腔室。 当阀门从中心位置移动时，先导阀和高压侧之间的减压阀在系统中保持中压水平。

公开(公告)号：US4266572A

公开(公告)日：1981-05-12

申请号：US73544

申请日：1979-09-07

申请人： Eckard Schuttenberg ,  Manfred Hauser ,  Winfried Hommen ,  Klaus Sopha

发明人： Eckard Schuttenberg ,  Manfred Hauser ,  Winfried Hommen ,  Klaus Sopha

IPC分类号： F15B13/043 ,  F16K31/42

CPC分类号： F15B13/0435 ,  F15B13/0402 ,  F15B13/0433 ,  F15B13/0436 ,  Y10T137/86606 ,  Y10T137/86614

摘要： The electrohydraulic directional control valve system includes a preliminary directional control valve and a main control valve, the latter having a control spool which is normally brought into its neutral or blocking position by means of two springs arranged in pressure chambers at respective ends of the control spool. The preliminary control valve has a sliding spool which at one end is urged by a spring into an additional safety position in which the pressure chambers of the main control valve are interconnected and pressure relieved, and the intake of the pressure fluid is blocked. A single proportionally operating solenoid counteracts the spring at the other end of the control spool of the preliminary control valve.

摘要翻译： 电动方向控制阀系统包括一个初级方向控制阀和一个主控制阀，后者具有一个控制阀芯，该控制阀通常通过两个弹簧设置在其中立或阻塞位置，弹簧布置在控制阀芯的各个端部处的压力室 。 预调节阀具有滑动卷轴，其一端被弹簧推压到另外的安全位置，在该安全位置，主控制阀的压力室相互连接并且释压，并且压力流体的吸入被阻挡。 单个比例操作的螺线管与预控制阀的控制线轴的另一端处的弹簧对抗。

公开(公告)号：US4061155A

公开(公告)日：1977-12-06

申请号：US674739

申请日：1976-04-07

申请人： Klaus Sopha

发明人： Klaus Sopha

IPC分类号： F15B13/043 ,  G05D7/06

CPC分类号： F15B13/0436 ,  Y10T137/2409 ,  Y10T137/776 ,  Y10T137/86598

摘要： The system includes a way valve of the type provided with a housing, fluid inflow and consumer ports in the housing, and at least one valve member movable in the valve housing for establishing connections between ports. A positioning arrangement receives an electrical input signal and positions the valve member in dependence thereon. A desired-value selector generates a desired-value signal indicative of the desired volumetric flow rate for the flow of fluid into the fluid inflow port and out one of the consumer ports. Transducers sense the position of the valve member and the pressures at the inflow and consumer ports and generate corresponding electrical feedback signals. A circuit arrangement connected to the desired-value selector and to the transducers compensates for the effect upon such volumetric flow rate of variations in the hydraulic loading of consumers supplied via the way valve by furnishing the aforementioned electrical input signal to the positioning arrangement as a predetermined function of both the desired-value and feedback signals.

摘要翻译： 该系统包括一种具有壳体的方式阀，流体流入和壳体中的消耗端口，以及可在阀壳体中移动的至少一个阀构件，用于在端口之间建立连接。 定位装置接收电输入信号并根据其定位阀构件。 期望值选择器产生一个期望值信号，该信号指示用于流体进入流体流入端口并流出消费者端口之一的所需体积流量。 传感器感测阀构件的位置和流入端口和消费者端口处的压力，并产生相应的电反馈信号。 连接到期望值选择器和换能器的电路装置通过将前述的电输入信号提供给定位装置来补偿通过路阀提供的消耗者的液压负载的变化的体积流量的影响，作为预定值 功能的期望值和反馈信号。

公开(公告)号：US3964518A

公开(公告)日：1976-06-22

申请号：US612577

申请日：1975-09-11

申请人： Horst Hesse ,  Walter Kobald ,  Heinz Gand ,  Rainer Hoheisel ,  Klaus Sopha ,  Heinz Flaschar ,  Heinz Kleinschmidt ,  Winfried Arnold ,  Werner Zeuch

发明人： Horst Hesse ,  Walter Kobald ,  Heinz Gand ,  Rainer Hoheisel ,  Klaus Sopha ,  Heinz Flaschar ,  Heinz Kleinschmidt ,  Winfried Arnold ,  Werner Zeuch

IPC分类号： F16K31/42 ,  F15B11/08 ,  F15B13/043 ,  F15B11/12

CPC分类号： F15B13/043 ,  Y10T137/86614

摘要： An electrohydraulic control unit which regulates the flow of hydraulic fluid to and from one or more consumers by way of a directional control valve has a cylinder for a piston which is mechanically connected with or constitutes the spool of the directional control valve and divides the interior of the cylinder into two plenum chambers connected to the outlet of the pump, either directly or by way of a pressure reducing valve. The chambers are further connected with the tank and each of the fluid supplying and evacuating conduits for each of the two chambers contains a flow restrictor. Th flow restrictors in conduits for admission of fluid to the chambers are mounted upstream of check valves and the flow restrictors in conduits for evacuation of fluid from the chambers are mounted upstream of or constitute integral parts of two solenoid-operated auxiliary valves. The four flow restrictors together constitute a hydraulic bridge circuit.

摘要翻译： 通过方向控制阀来调节来自一个或多个消耗者的液压流体的电动液压控制单元具有用于与方向控制阀机械连接或构成方向控制阀的阀芯的活塞的气缸， 将气缸直接或通过减压阀连接到泵的出口的两个增压室中。 这些室还与罐连接，并且用于两个腔室中的每一个的每个流体供应和排出管道都包含限流器。 用于将流体进入腔室的管道中的流量限制器安装在止回阀的上游，并且用于从腔室排出流体的管道中的限流器安装在两个电磁辅助阀的上游或构成两个电磁辅助阀的一体部分。 四个流量限制器一起构成一个液压桥接电路。