| 摘要 |
<p>13 A shock absorber has a rebound stop assembly. The rebound stop assembly rests upon a shoulder fixed to a piston rod. The rebound stop assembly includes an elastomeric ring interposed between two collars forming an annular chamber therebetween. At the end of the rebound stroke of piston rod, the rebound stop assembly is axially compressed between the shoulder of piston rod and the rod guide until the elastomeric ring deforms to abut the inner wall of the working cylinder. As the elastomeric ring deforms, the annular chamber decreases in volume. A restrictive passage allows a restrictive flow of fluid therefrom. An additional chamber is formed which is in restrictive fluid communication through the passage with section of rebound chamber. Further compression of the stop assembly decreases the volume of both chambers and causes restrictive fluid flow out therefrom through the passage into the section of rebound chamber. The compression of the elastomeric ring and the restrictive fluid flow provides additional damping at the end of the rebound stroke.</p> |
