| 摘要 |
An improved suspension assembly for a high capacity hauling vehicle having a strut that is connected to a two-chamber cylinder or accumulator. The strut has a first section that is connected to the axle and a second section which is secured to the vehicle chassis and telescopes in relation to the first section. Further, the strut has a chamber that contains a gas and a liquid. The suspension assembly accumulator has two chambers that are separated by a movable piston. The first accumulator chamber is filled with liquid while the second accumulator chamber is filled with a gas. The gas-filled accumulator chamber is connected to the strut chamber, which also contains gas, by way of a hose which includes a fixed size orifice. The orifice is sized to regulate the flow of gas between the chambers so that the dynamic stiffness characteristic of the strut varies as a function of the speed of the movement of the axle relative to the vehicle. The liquid filled accumulator chamber is connected to a source of liquid under pressure so that the volume of liquid in the accumulator may be varied. A self-leveling feature senses the relationship of the axle to the vehicle to automatically level the vehicle. The operator of the vehicle may manually override this feature to raise or lower the vehicle body upon command. |
