| 摘要 |
A spring and damper unit (10) comprises two telescopically movable housings (11, 12) bounding an interior space formed by a cavity (16) in one of the housings and a cavity (23) in the other housing, and a floating piston (24) disposed in one of the cavities (23) and dividing the interior space into a spring chamber (27) containing a gaseous medium such as air and a damping chamber (26) containing a damping fluid such as hydraulic oil, the housings being movable together in a compression stroke thereof to compress the gaseous medium through reduction in the volume of the spring chamber (27) and the piston (24) being movable by the compressed gaseous medium to cause a reduction in the volume of the damping chamber (26) for displacement of fluid therefrom. The spring thus has a dual function in the unit. The piston (24) is preferably arranged to produce an increase in the volume of the spring chamber (27) concurrently with the reduction in the volume of the damping chamber (27), the increase in the spring chamber volume being less than the mentioned reduction in that volume. As a result, a more linear rising spring rate is achieved.
|
