| 摘要 |
<p>Cushioning Device For Fluid Jacks A fluid jack (10) has a cushioning device (21) positioned within a cylinder (11) between a piston means(12) and a closed end (13) with the cushioning device(21) being a self-contained unit independent of any major components of the fluid jack (10). A variable volume chamber (24) is formed between a pair of members (22,23) with the cushioning taking place by metering the fluid expelled from the variable volume chamber (24) in response to the piston means (12) engaging and moving one of the members (22,23) in a direction for decreasing the volume of the variable volume chamber (24).</p> |
