A hydraulic damper with an additional chamber assembly and a method of adjusting a damping characteristic of such a damper,申请号EP20080009681-传众专利搜索

A hydraulic damper with an additional chamber assembly and a method of adjusting a damping characteristic of such a damper

申请公布号：EP2128484(A1)

申请号：EP20080009681

申请日期：2008.05.28

申请公布日期：2009.12.02

申请人：

DELPHI TECHNOLOGIES, INC.

发明人：SLUSARCZYK, PAWEL;KRAZEWSKI, OLAF;KNAPCZYK, MARCIN

分类号：F16F9/512

主分类号：F16F9/512

摘要：<p>The present invention relates to a hydraulic damper (1), in particular a motor vehicle suspension damper, comprising a tube filled with working liquid, inside of which a slidable piston assembly (3) with rebound and compression valve assemblies (9, 10) to control the flow of working liquid passing through the piston assembly during rebound and compression stroke of the damper is placed, which is attached to a piston rod led outside the damper and divides the tube into main compression chamber (8) and main rebound chamber (7). Further the damper comprises at least one chamber assembly (14) with a floating piston separating this assembly into additional compression chamber and additional rebound chamber and comprising at least one valve arrangement located between the main compression chamber and additional compression chamber and/or between the main rebound chamber and additional rebound chamber. Said valve arrangement comprises a blow-off valve, which upon activation after reaching a predefined pressure threshold opens the flow of fluid from said main to said additional chamber, and a check valve, which allows return flow of fluid from said additional to said main chamber. The invention also relates to a method of adjusting a damping characteristic of a hydraulic damper of this kind.</p>