| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the generation of a leveling error of a lift in an extended state and pressure spikes in a hydraulic system due to non-homogeneous thermal stress or air enclosure in the hydraulic system. <P>SOLUTION: At least one of hydraulic cylinder units (9, 10) has an overflow channel (9c, 10c). The overflow channel is configured in such a manner that only in an area of the end position where a vehicle is maximally raised or maximally lowered, the inlet (9a, 10a) of the cylinder unit is connected in a fluid-conducting fashion to the overflow channel. <P>COPYRIGHT: (C)2012,JPO&INPIT |
