发明名称 |
Magnetorheological fluid damper with optimum damping |
摘要 |
An improved magnetorheological fluid damper is provided which more closely approximates ideal performance requirements including increased turn-up ratio and stiction free performance near zero velocity for realistic automotive applications. The MR damper includes a magnetic flux leakage reduction device positioned at each end of the magnetic damper piston assembly to create a magnetic flux isolation barrier causing magnetic flux to extend through an annular flow gap thereby minimizing flux leakage into other areas such as a piston rod and associated hollow tube. The magnetic flux leakage reduction devices are formed of a non-magnetic material and completely cover a respective adjacent axial face of a piston core. A laminar flow enhancing feature is also provided for enhancing laminar flow and minimizing turbulence in the annular flow gap thereby advantageously reducing the off-state force and increasing the turn-up ratio.
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申请公布号 |
US6390252(B1) |
申请公布日期 |
2002.05.21 |
申请号 |
US19990397241 |
申请日期 |
1999.09.16 |
申请人 |
DELPHI TECHNOLOGIES, INC. |
发明人 |
NAMUDURI CHANDRA SEKHAR;ALEXANDRIDIS ALEXANDER APOSTOLOS |
分类号 |
F16F9/53;(IPC1-7):F16F9/53 |
主分类号 |
F16F9/53 |
代理机构 |
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地址 |
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