发明名称 Vibration damper with stroke-dependent damping force
摘要 A piston rod with a piston is installed with freedom of axial movement in a damping medium-filled cylinder, where, as a function of the stroke position of the piston, a bypass connects the two working spaces separated from each other by the piston. The piston has at least one through-channel for at least one flow direction, which channel is at least partially covered on the outlet side by at least one valve disk, so that a first pressure-actuated surface to which pressure can be applied in the opening direction is present on the valve disk. In addition to the first pressure-actuated surface, the valve disk has a second pressure-actuated surface, which is separated from the first when the valve disk is closed and which can be actuated via the bypass, in which case the effects of the two pressure-actuated surfaces are additive. The second pressure-actuated surface of the valve disk, in addition to the first pressure-actuated surface of the valve disk, is designed with its throttle point in the area of the second pressure-actuated surface at least during a certain phase of the travel of the valve disk.
申请公布号 US2005061592(A1) 申请公布日期 2005.03.24
申请号 US20040946972 申请日期 2004.09.22
申请人 ZF FRIEDRICHSHAFEN AG 发明人 HEYN STEFFEN;GUNDERMANN FRANK;BOHM CHRISTIAN;ZEISSNER BERND;GRUNDEI MANFRED
分类号 F16F9/32;F16F9/34;F16F9/346;F16F9/348;(IPC1-7):F16F9/34 主分类号 F16F9/32
代理机构 代理人
主权项
地址