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标题翻译：带液压机械止动器的液压悬挂阻尼器

公开(公告)号：EP3176464A1

公开(公告)日：2017-06-07

申请号：EP16002363.6

申请日：2016-11-08

申请人： BeijingWest Industries Co. Ltd.

发明人： Chyla, Lukasz , Widla, Waldemar , Gasior, Grzegorz , Wrzesinski, Jakub

IPC分类号： F16F9/49 , B60G17/08 , F16F9/58 , F16F9/34

CPC分类号： F16F9/516 , B60G13/08 , B60G15/061 , B60G17/08 , B60G2202/24 , B60G2500/10 , B60G2800/16 , F16F9/065 , F16F9/19 , F16F9/3214 , F16F9/34 , F16F9/3465 , F16F9/36 , F16F9/49 , F16F9/585 , F16F13/007 , F16F2228/066

摘要： The present invention relates to a hydraulic damper (1), in particular a motor vehicle hydraulic suspension damper, comprising a tube (2) filled with working liquid, a main piston assembly (3) disposed slidably inside the tube (2), attached to a piston rod (4) led outside the damper (1) through a sealed piston rod guide (5) and dividing the tube (2) into a rebound chamber (7) and a compression chamber (9), rebound (31) and compression (32) valve assemblies to control the flow of working liquid within the tube (2) during rebound and compression stroke of the damper (1), wherein at least one end of the tube (2) is provided with an additional stroke stop arrangement (11) comprising a narrowed section (124) of a diameter smaller than the diameter of the tube (2), having an Inlet (125) opening to the tube (2) and provided at least partially with at least one axial groove (122) having the cross-sectional area decreasing from said inlet (125) along said narrowed section (124), a spring (14) disposed at least partially in said narrowed section (124) of the tube (2) and secured to said at least one end of the tube (2), and an additional piston assembly (13) having a diameter smaller than the diameter of the tube (2), displaceable along with the main piston assembly (3) apt to be slidably disposed in said narrowed section (124) of the tube (2) and apt to engage said spring (14) to generate additional damping force. In order to provide a tunable and smooth increase of damping force at the end of the stroke said additional piston assembly (13) is further provided with a shaped sleeve (134) distal with respect to the main piston assembly (3), a sealing ring (133) apt to make a sliding fit with the Internal wall of said narrowed section (124) of the tube (2), and a supporting sleeve (132) proximal with respect to the main piston assembly (3), wherein the sealing ring (133) surrounds an inner axial rim (1343) of the shaped sleeve (134) and is axially displaceable between the supporting sleeve (132) and an outer axial rim (1344) of the shaped sleeve (134) and wherein the Inner axial rim (1343) defines at least one axial channel (1341) in fluid connection with at least one radial channel (1342) defined In the outer axial rim (1344).

摘要翻译：本发明涉及一种液压阻尼器（1），尤其是一种机动车辆液压悬挂阻尼器，其包括填充有工作液体的管（2），可滑动地设置在管（2）内的主活塞组件（3）活塞杆（4）通过密封的活塞杆导向件（5）引导到阻尼器（1）的外部并且将管（2）分成回弹室（7）和压缩室（9），回弹（31）和压缩（32）阀组件以在阻尼器（1）的回弹和压缩冲程期间控制管（2）内的工作液体的流动，其中管（2）的至少一个端部设置有另外的行程停止装置 11）包括直径小于所述管（2）的直径的缩窄部分（124），具有通向所述管（2）的入口（125）并且至少部分地设置有至少一个轴向凹槽（122）具有从所述入口（125）沿着所述变窄部分（124）减小的横截面面积的弹簧（14）d 至少部分地位于所述管（2）的所述变窄部分（124）中并固定到所述管（2）的所述至少一端，以及附加活塞组件（13），其直径小于所述管（2）可与主活塞组件（3）一起移动，以便可滑动地设置在管（2）的所述变窄部分（124）中并适于接合所述弹簧（14）以产生附加的阻尼力。为了在冲程结束时提供阻尼力的可调和平稳增加，所述附加活塞组件（13）还设置有相对于主活塞组件（3）远端的成形套筒（134），密封环（133）能够与所述管（2）的所述变窄部分（124）的内壁滑动配合，以及相对于所述主活塞组件（3）靠近的支撑套筒（132），其中所述密封环（133）围绕所述成形套筒（134）的内部轴向边缘（1343）并且可在所述支撑套筒（132）与所述成形套筒（134）的外部轴向边缘（1344）之间轴向移动，并且其中所述内部轴向边缘（1343）限定至少一个轴向通道（1341），所述至少一个轴向通道（1341）与限定在外部轴向边缘（1344）中的至少一个径向通道（1342）流体连接。

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