| 摘要 |
The invention deals with an automative self-adjustable damper having a progressive damping characteristic meant to be used with vehicles and motor vehicles for damping the swing of the wheels, chassis, carosserie, the drivers and passengers seats, the engine set as well as in parachoke bars for impact energy absorbtion. Depending on the situation it can be used unpressurized, at a low pressure for improving the damping characteristic or pressurized at a high pressure for assuring a buoyant force too. For damping the oscillations it is recommendable to use high damping coefficients which have the disadvantage of reducing the comfort. The active and semiactive suspensions assure the variation of the damping coefficients function of the needs but they are complicated to build, they are expensive and require high power consumptions. According to the invention the shock absorber has the advantage of assuring a large range of damping coefficients function of the relative piston position in the cylinder as well as a technological simplicity. Both on rebound and compression, the damping coefficients have low values at the beginning of the strokes becoming medium at the middle of the stroke and high and very high when getting to the end of it. Thus a good adherency wheel-road, comfort and protection at the end of the stroke are assured. This shock absorber is made up of several systems: energy dissipation system, rod volume compensation system, the guiding scaling system and the resistance part protecting all these systems. |
