| 摘要 |
<p>A shock absorber comprises a cylinder assembly (10,12) defining a working chamber (14) filled with a hydraulic working fluid and disposed therein a piston, and a fluid reservoir chamber (16) filled with the hydraulic working fluid and a pneumatic working fluid, a communication path (44,104) for connecting the working chamber and the fluid reservoir chamber for fluid communication therebetween, and a check and flow restriction assembly (110,116,118,120) disposed within the communication path for selectively establishing and blocking fluid communication between the working chamber and the fluid reservoir chamber, the check and seal assembly includes a check means (116) and a flow restriction means (118,158) arranged in series, the flow restriction means permitting pneumatic and hydraulic fluid flow directed to the fluid reservoir chamber (16) during piston bounding stroke and providing flow restriction for the hydraulic fluid flow, and the check means blocking fluid communication between the fluid reservoir chamber and the working chamber during piston rebounding stroke and permitting hydraulic fluid flow during the piston bounding stroke. <IMAGE></p> |
