| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent air from entering into hydraulic fluid with simple structure. <P>SOLUTION: A shock absorber includes an upper cylinder, a piston valve arranged in a lower end of the upper cylinder, a free piston arranged to be slidably through the upper chamber, and partitioning the upper cylinder into an air chamber and upper oil chamber, and a lower cylinder arranged to be slidable around the lower end of the upper cylinder, and having a lower oil chamber. Furthermore, the shock absorber has a simple structure since both the free piston and air chamber are arranged in the upper chamber. Additionally, when both the upper cylinder and lower cylinder are moved relatively, the free piston moves in order to adjust a volume of the upper oil chamber, and provide damping effect. <P>COPYRIGHT: (C)2012,JPO&INPIT |
