| 摘要 |
<p>Primary passages (4) are provided in a restriction valve seat (10), normally closed by a spring-biased valve body (5). The passages are let through hydraulic damping fluid between shock absorber cylinders (21,22) upon piston action. - An auxiliary passage (7), closable by a closure element (2), adds to fluid pressure on the valve body for passage by admitting fluid into a closed space (11) between the body and seat. This causes reduced damping.</p> |
