公开(公告)号：WO2015090589A1

公开(公告)日：2015-06-25

申请号：PCT/EP2014003409

申请日：2014-12-17

Applicant: THYSSEN KRUPP BILSTEIN GMBH

Inventor： HAMER WOLFGANG ,  GÖTZ OLE ,  SCHMIDT KLAUS ,  SMELJANSKI DMITRIJ

IPC: F16F9/46

CPC classification number: F16F9/465 ,  F16F9/19 ,  F16F9/348 ,  F16F9/3488 ,  F16F2228/066 ,  F16F2228/08

Abstract: The invention relates to a controllable vibration damper (1), in particular for a vehicle body, comprising a cylindrical tube (10) which has a hydraulic fluid that is sealed in the cylindrical tube, a piston (2) which is axially movable within the cylindrical tube (10) along a cylindrical tube axis (A) and which divides the cylindrical tube (10) into two work chambers (11, 21), and a piston rod (3) which is oriented parallel to the cylindrical tube axis (A) and which is connected to the piston (2) at one end, multiple fluid passages (12, 22) from one work chamber (11, 21) to the other work chamber (21, 11) being provided in the piston. A first valve assembly (13) for damping the piston movement in a first actuation direction (R1) is arranged in a first fluid passage (12), and a second valve assembly (23) for damping the piston movement in a second actuation direction (R2) is arranged in a second fluid passage (22), each valve assembly (13, 23) having at least one valve disk (14, 24) which sits on a valve seat (15, 25) in a closed valve position and is at least partly removed from the valve seat (15, 25) in an open valve position. Each valve assembly (13, 23) comprises a pilot control chamber (16, 26), and a pressure in the pilot control chamber (16, 26) urges the valve disk (14, 24) into the closed valve position, the pressure in each of the pilot control chambers (16, 26) being adjustable. According to the invention, one of the pilot control chambers (16, 26) is delimited by a base (4), a cylindrical lateral wall (5) which is stationary relative to the base (4) and which is coaxial to the cylindrical tube axis (A), and a dimensionally stable cover (6) which can be moved parallel to the cylindrical tube axis (A) in a radial manner within the cylindrical lateral wall (5).

Abstract translation: 本发明涉及一种可调节减震器（1），特别是用于车辆悬架，包括：缸筒（10），其具有密封在其中的液压流体，活塞（2）沿缸筒轴线（A）的缸筒（10）内轴向地 是可移动的与缸筒（10）分成两个工作腔（21 11）被划分，活塞杆（3），其平行于缸筒轴线（a）和在一端连接到所述活塞（2）连接，其中，所述活塞 从一个工作腔室中的其他工作腔室中的多个流体通道（12，22）（11,21）（21，11）设置，其中，第一阀组件（13），用于在第一致动方向（R1）阻尼活塞运动（在第一流体通道 12）设置，并且其中一个第二阀组件（23），用于在第二致动方向的阻尼活塞运动（R2）被布置在第二流体通道（22）， 其中，每个阀组件（13，23）的至少一个阀盘（14，24），其在上阀座（15，25）的关闭的阀位置放置并在所述阀座的打开阀位置至少部分地延伸（15，25）中除去 是，每个阀组件（13，23）具有一个先导室（16，26），其中，在先导室的压力（16，26）的阀盘（14，24）采取行动在阀闭合位置，其中，在先导室的压力 （16，26）是可调的。 根据本发明，它提供了的先导室之一（16，26）由底部（4），相对固定到（4）为圆柱形的侧壁（5），其被布置成在缸筒轴线（A）与同轴的，并且所述底座的径向圆柱形内 侧壁（5）平行于缸筒轴线（A）可动形状稳定的盖（6）是有限的。