| 摘要 |
A dual seal rod guide assembly (10) with low friction disc (38) for use in a magneto-rheological (MR) strut is described. The dual seals (26,30) separate the functions of abrasion resistance and temperature performance, with the primary seal (26) formed of a material resistant to high temperatures and the buffer seal (30) formed of a material resistant to the ferroelectric microparticles in the MR fluid. The porous rod guide (28), in conjunction with the buffer seal (30), allow only the MR carrier fluid to reach the bearing (32) and primary seal (26). The MR carrier fluid provides internal lubrication of the bearing (32) and primary seal (26). The retainer (34) holds the assembly (10) together and engages the rod guide flexible assembly (20) to the housing with a low-friction disc (38) therebetween. The disc (38) reduces surface friction during radial movement of the rod guide (28).
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