| 摘要 |
<p>A damper, (also called a shock absorber) is provided with the additional function of wheel bouncing so that the vehicle can be moved sideways, whilst airborne, against very little resistance. To achieve this, the damper is provided with an internal central post, (2) fixed to its base which acts as a plunger in the damper's piston rod (4) which is hollow. A high pressure hydraulic bounce fluid supply (14) is attached to the top of the bore of the piston rod which forms a bounce chamber (12). The post is hollow and has an annular space (22) around it which, together, allow damper fluid to pass between the upper (8) and lower (6) damper chambers with little restriction. A pressure sensitive valve (10) in the top of the post prevents flow through the post when the bounce chamber is not pressurised. A variable-speed bounce control valve connects the bounce chamber sequentially to an hydraulic pump and to an hydraulic reservoir to energise and exhaust the bounce chamber in order to create a repetitive wheel bounce of variable height and variable cycle time.</p> |
