公开(公告)号：EP1172553A2

公开(公告)日：2002-01-16

申请号：EP01115826.8

申请日：2001-06-28

Applicant: Mannesmann Rexroth AG

Inventor： Schäffer, Rudolf

IPC: F04B1/12 ,  F04B1/28 ,  F04B1/20 ,  F04B9/117 ,  F15B3/00

CPC classification number: F04B1/20 ,  F04B1/128 ,  F04B1/2042 ,  F04B1/295 ,  F04B9/117

Abstract: Offenbart ist ein Hydrotransformator mit einem Rotor, in dem eine Vielzahl von Verdrängern geführt ist. Die die Verdränger aufnehmenden Verdrängerräume sind über eine Steuereinrichtung mit zumindest drei Steuerfenstern mit einem Arbeitsanschluß, einem Versorgungsanschluß oder einem Tankanschluß verbindbar. Die Steuereinheit hat einen Steuerkörper, in dem zumindest zwei der Steuerfenster radial versetzt zu den Verdrängerräumen ausgebildet sind.

Abstract translation: 水力变压器在其安装有叶轮（6）的室中具有转子（2），其被支撑用于控制升降部件（12）的运动。 控制装置（16,32）具有至少三个控制窗口（18,20），其与供应连接件，工作连接件和罐连接件连接。 通过改变控制窗口的有效控制长度（1）可以调节压力比。 控制装置具有控制体（16），其中形成有至少两个径向移动的控制窗口。 窗户经由连接通道（30）与叶轮室（8）连接，其几何形状如此选择，使得控制窗口的有效控制长度（1）在控制体的调节上是反向变量的。

公开(公告)号：EP1135615A1

公开(公告)日：2001-09-26

申请号：EP99957983.2

申请日：1999-11-03

Applicant: Mannesmann Rexroth AG

Inventor： REITH, Werner ,  NGUYEN XUAN, Binh

IPC: F15B20/00 ,  F15B13/042

CPC classification number: F15B20/002 ,  F15B13/0402 ,  F15B13/042 ,  F15B20/004 ,  F15B2013/004 ,  H01F2007/1684 ,  Y10T137/86606 ,  Y10T137/86614 ,  Y10T137/8663 ,  Y10T137/86702

Abstract: The invention relates to a directional valve with a movable valve piston (5). Said valve piston separates two pressure chambers (6, 8) in the interior of the valve housing from each other which chambers can be impinged upon by a control pressure, thus displacing the valve piston (5) according to the pressure difference between the pressure chambers (6, 8) in axial positions which correspond to respective control positions of the valve. In said inventive valve an arrangement (29) is provided that acts on the piston valve (5) and produces an actuating power which loads the piston valve for a displacement to an axial position corresponding to a desired position.

Abstract translation: 本发明涉及一种具有可移动阀活塞（5）的方向阀。 所述阀活塞将阀壳体内部的两个压力室（6,8）彼此隔开，这些室可以通过控制压力冲击，从而根据压力室之间的压差使阀活塞（5）移位 （6,8）处于对应于所述阀的相应控制位置的轴向位置。 在所述的本发明的阀中，设置了一种装置（29），其作用在活塞阀（5）上并且产生致动力，该致动动力将活塞阀加载到对应于期望位置的轴向位置。

公开(公告)号：EP1105651A1

公开(公告)日：2001-06-13

申请号：EP99942808.9

申请日：1999-08-03

Applicant: Mannesmann Rexroth AG

Inventor： GUO, Xu

IPC: F15B1/00

CPC classification number: F15B15/222

Abstract: The invention relates to a working cylinder actuated by hydraulic fluid, comprising a piston (20) to which a piston rod (35) is fixed and which can be axially displaced in a cylinder chamber between two end positions such that it inversely modifies the volume of two cylinder chambers (21, 22) on either side. A damping element (40) is arranged at least at one side of the piston (5) which when the piston moves into one of the terminal positions enters an opening between the one cylinder chamber and a cylinder connection, such that together with said opening it forms a circular throttling gap for the throttled outflow of hydraulic fluid from the cylinder chamber to the cylinder connection. To obtain a high damping capacity and in this way to be able to slow down large masses moved by the cylinder along a defined path, the outer surface of the damping element (40) in the axial direction is shaped such that when the damping element is fully immersed, it has a maximum diameter at the chamber-side start of the opening and, following a flat section having a small diameter (52) or small diameters, if the damping element is deeply immersed, across a short section has a medium diameter situated between the maximum and the small diameter.

公开(公告)号：EP0707686B1

公开(公告)日：2000-10-18

申请号：EP94924212.7

申请日：1994-06-29

Applicant: Mannesmann Rexroth AG

Inventor： BUCHMÜLLER, Klaus ,  PIPPES, Reinhard

IPC: F04C15/00

CPC classification number: F04C15/0026

Abstract: The starting point of the invention is a hydraulic gearwheel machine, in particular an internal-gearwheel machine. A known machine of this type has two meshed gearwheels (20, 21) inside a chamber of a multipart housing, a sealing plate (35) axially arranged at the side of both gearwheels between said gearwheels and a part of the housing, and a high pressure-loadable pressure field (36) located at the high pressure side of the housing part (13, 14), open towards the sealing plate. The object of the invention is to allow embodiments of a gearwheel machine that differ from each other by their sense of rotation to be built with many identical parts. For that purpose, a second pressure field (36) is provided in the housing part (13, 14). The first pressure field is located only on one side of a center plane (22) defined by the axes of rotation of both gearwheels, whereas the second pressure field is located only at the other side of said center plane (22), so that a piece (37) of the housing part remains between both pressure fields. High pressure may be applied to only one of both pressure fields of a housing part in the concrete clockwise or anti-clockwise embodiment. When the same housing part is used in the other embodiment, the other pressure field is used to press the sealing plate against the gearwheels.

公开(公告)号：EP1026408A2

公开(公告)日：2000-08-09

申请号：EP00100537.0

申请日：2000-01-12

Applicant: Mannesmann Rexroth AG

Inventor： Klug, Jochen ,  Ragus, Roman ,  Stahl, Konrad

IPC: F15B15/14 ,  F15B15/06

CPC classification number: F15B15/149 ,  F15B15/063 ,  F15B15/1457

Abstract: Die vorliegende Erfindung betrifft eine Antriebsvorrichtung (1) für eine Sende- und/oder Empfangseinrichtung, insbesondere für eine Sonar-Sende- und Empfangseinrichtung auf einem Schiff, mit einem doppeltwirkenden, vorzugsweise hydraulisch betätigbaren Zylinder, der einen Kolben (2) und eine aus einem Zylindergehäuse (3, 7) linear aus- und einfahrbare und um eine Antriebsachse (4) drehbare Kolbenstange (5) umfaßt, wobei der Kolben (2) und die Kolbenstange (5) hohl sind und eine ebenfalls hohle Drehantriebswelle (6) aufnehmen, gegenüber der sie linear verfahrbar sind.
Der vorliegenden Erfindung liegt das Problem zugrunde, eine Antriebsvorrichtung bereitzustellen, die eine zuverlässige und widerstandsfähige Verbindung mit der Sende- und/oder Empfangseinrichtung gewährleistet.
Das Problem ist dadurch gelöst, daß der hohle Innenraum (27) der Drehantriebswelle (6) gegenüber dem Arbeitsmedium des Zylinders abgedichtet ist und daß im hohlen Innenraum (27) Verbindungsleitungen für die Sende- und/oder Empfangseinrichtung führbar sind.

Abstract translation: 驱动装置（1）包括双作用的，优选液压致动的气缸，其包括对接件（2）和围绕驱动轴（4）旋转的活塞杆（5），所述活塞杆可以从气缸 套管（3,7）。 对接和活塞杆是中空的，并且记录一个空心旋转驱动轴（6），它们相对于它们是线性移动的。 旋转驱动轴的中空内部（27）面向气缸的工作介质被密封，并且用于传送和/或接收装置的连接导体被引导到中空的内部。

公开(公告)号：EP0857326B1

公开(公告)日：2000-06-21

申请号：EP96929320.8

申请日：1996-08-23

Applicant: Mannesmann Rexroth AG

Inventor： ZÜGNER, Jürgen ,  CORDS, Karl ,  MÜLLER, Hans ,  SCHULTE, Michael

IPC: G05D7/01 ,  F16K31/363

CPC classification number: F15B11/05 ,  F15B13/042 ,  Y10T137/7771 ,  Y10T137/7788

Abstract: Disclosed is a two-way flow-control valve (1) by means of which the rate of flow of a hydraulic fluid can be kept constant by connecting together a restrictor orifice (32) and a control orifice. When fluid flows through the valve in the opposite direction, a non-return element (44) in the valve is moved against the bias of its own spring (48) in such a way that it opens a bypass channel which bypasses the restrictor orifice (32).

公开(公告)号：EP0953767A2

公开(公告)日：1999-11-03

申请号：EP99107900.5

申请日：1999-04-21

Applicant: Mannesmann Rexroth AG

Inventor： Dantlgraber, Jörg

IPC: F04B49/00 ,  F04B49/06

CPC classification number: F04B1/2042 ,  F04B11/00

Abstract: Die Kolben (5) einer hydrostatischen Maschine (1) sind in Zylindern (4) bewegbar und einer zyklischen Hubbewegung unterworfen. Ein Steuerkörper (12) weist eine Niederdruck-Steueröffnung (13) und eine Hochdruck-Steueröffnung (14) auf, um die Zylinder (4) zyklisch, alternierend mit einer Niederdruckleitung und einer Hochdruckleitung zu verbinden. Ferner weist der Steuerkörper (12) eine Zusatzöffnung (20) zum Beaufschlagen der Zylinder (4) mit einem vorkomprimierten Druckmedium auf. Erfindungsgemäß ist die Zusatzöffnung (20) mit einer geregelten oder gesteuerten Vorkompressionseinrichtung (23) verbunden, die durch eine Regel- oder Steuereinrichtung (24) so angesteuert wird, daß sich in den Zylindern (4) beim Übergang von der Niederdruck-Steueröffnung (13) zu der Hochdruck-Steueröffnung (14) ein kontinuierlicher, stetiger Druckaufbau einstellt.

Abstract translation: 静液压机（1）的活塞（5）在气缸（4）和受环状行程运动移动。 控制本体（12）具有低的压力控制孔（13）和用于循环交替与低压管线和高压管线（4）气缸连接的高压控制孔（14）。 此外，控制本体（12），以用于与预压缩的压力介质加压的气缸（4）的补充开口（20）。 根据本发明，附加的开口（20）与调节或控制Vorkompressionseinrichtung（23）通过调节或控制装置（24），连接在所述气缸（4）从所述低压控制孔口的过渡期间被驱动，使得（13） 到高压控制孔（14）调整的连续，稳定的压力累积。

公开(公告)号：EP0914631A1

公开(公告)日：1999-05-12

申请号：EP97930502.0

申请日：1997-07-04

Applicant: Mannesmann Rexroth AG

Inventor： HAUSEN, Detlef ,  LIEBLER, Gerold ,  SACHS, Dieter

IPC: G05B11

CPC classification number: G05B11/42

Abstract: In order to reduce overshooting of the controlled variable upon rapid changes of the reference variable (w) in a closed-loop control circuit consisting of a PID controller with parallel proportional component (3), integral component (6, 7) and differential component (4, 5), and a controlled system with quasi-integral behavior, the time derivative of the actual value of the controlled variable (y) is fed to the integral component of the PID controller with a negative sign. The PID controller is particularly suitable for automatic control of the r.p.m. of hydraulic secondary units, and for automatic pressure control with hydraulic variable-displacement pumps, and can be implemented simply as a digital controller.

公开(公告)号：EP0894299A1

公开(公告)日：1999-02-03

申请号：EP97908262.0

申请日：1997-03-19

Applicant: Mannesmann Rexroth AG

Inventor： MACHAT, Götz-Dieter ,  MEYER, Karl-Josef ,  STROKA, Wilfried ,  ZÜGNER, Jürgen

IPC: F15B13 ,  G05D16

CPC classification number: G05D16/10 ,  F15B13/0402 ,  F15B13/0407 ,  Y10T137/2607 ,  Y10T137/2635

Abstract: The invention pertains to a precontrolled 3-way pressure control valve with a direct-control pressure valve (45) as pilot valve (45) and with a main valve (9). In a valve housing (10) of the main valve (9) there is a valve bore (11) in which a control piston (12) is moved axially. Said control piston (12) is acted upon in opposite directions by pressures derived from the pressure in the control connection (A) and the pressure setting of the pilot valve (45) such that it experiences an imbalance of forces when the pressure at the control connection (A) deviates from the control pressure predetermined by the pressure setting of the pilot valve (45). To create a pressure control valve with a stable action, the control piston (12) is designed as a hollow piston with a hollow chamber (30), the wall of which has a number of oblong, axially running through-holes (32) distributed over the circumference of the control piston (12), enabling the individual connections (A, P, T) of the main valve to be combined. Furthermore, the valve is subject to low-pressure control, wherein control oil is removed at an axial end of the hollow chamber (30) in the control piston (12) and flows through a control nozzle (41) into a pressure chamber (42) in front of one end face of the control piston (12), connecting to the pilot valve (45) in the form of a pressure limiting valve (45). Pressure in the control connection (A) is applied to the control piston (12) against the pressure in this first pressure chamber (42) and the force of a spring (31) acting in the same direction.

公开(公告)号：EP0819078B1

公开(公告)日：1998-12-09

申请号：EP96908143.9

申请日：1996-03-27

Applicant: Mannesmann Rexroth AG ,  Talbot GmbH & Co. KG

Inventor： BIRKHAHN, Gundolf ,  DÜSING, Manfred ,  LENGL, Karl ,  LÜ, Yvan ,  SCHÄFER, Wolfgang

IPC: B61F5/24

CPC classification number: B61F5/245

Abstract: In a device for counteracting the transverse forces acting on a rail vehicle (1), the superstructure (2) of which is supported via a suspension system (3, 3') on at least one chassis (4) and which can be shifted transversely in relation to the chassis via a transverse compensator, according to the invention there is a transverse suspension system (14) to buffer dynamic vibration, which can be engaged or disengaged depending on running conditions.

Abstract translation: 在用于抵消作用在轨道车辆（1）上的横向力的装置中，其上部结构（2）通过悬挂系统（3,3'）支撑在至少一个底盘（4）上并且可以横向移动 根据本发明相对于底盘通过横向补偿器具有用于缓冲动态振动的横向悬架系统（14），所述动态振动可以取决于运行条件而接合或分离。