发明名称 |
Double-tube vibration damper |
摘要 |
For a double-tube vibration damper which comprises an axially proceeding groove in the cylinder for by-passing the piston valves, a piston is provided which possesses a satisfactory sealing and guidance function in the cylinder. This is achieved in that the piston comprises a rigid piston ring arranged in a piston groove and acting as sealing ring against the cylindrical surface, while the piston comprises a second piston ring groove for the reception of a guide ring consisting of a piston ferrule. In this case at least one relief passage is provided which connects the second piston ring groove and/or the space situated between the piston ring grooves with the working chamber remote from the piston rod.
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申请公布号 |
US4821850(A) |
申请公布日期 |
1989.04.18 |
申请号 |
US19870031987 |
申请日期 |
1987.03.27 |
申请人 |
FICHTEL & SACHS AG |
发明人 |
GEILING, WOLFGANG;WOESSNER, FELIX |
分类号 |
F16F9/36;F16F9/48;F16J15/56;(IPC1-7):F16F9/06 |
主分类号 |
F16F9/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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