| 摘要 |
The damper and spring unit (10) comprises a damper (12) having a longitudinal axis (z), a spring member (14) extending coaxially to the damper (12), a bottom spring plate (22) against which the spring member (14) rests at its bottom and a vehicle height adjustment device (26) for adjusting the height of the vehicle from the ground. The damper (12) includes a first damper element (16) adapted to be firmly connected to a wheel carrier of the suspension and a second damper element (18) slidable relative to the first damper element (16) along the longitudinal axis (z). The adjustment device (26) is interposed between the first damper element (16) and the spring member (14) to change in a controlled manner the linear position of the bottom spring plate (22), and hence of a bottom end of the spring member (14), relative to the first damper element (16) along the longitudinal axis (z) and is made as a hydraulic linear actuator comprising a cylinder (28) firmly secured to the first damper element (16) and a piston (30) drivingly connected for translation with the bottom spring plate (22) along the longitudinal axis (z) of the damper (12) between a bottom end- of-travel position, corresponding to the minimum height of the vehicle from the ground, and a top end-of-travel position, corresponding to the maximum height of the vehicle from the ground. The piston (30) of the adjustment device (26) is arranged, at least for the largest part of its longitudinal size, within the spring member (14). |
