| 摘要 |
PROBLEM TO BE SOLVED: To create a self-pumping hydropneumatic spring strut provided with an internal leveling device by which a commercial vehicle with a leaf spring of large loading capacity can also be adjusted to a specified preset level without changing the basic idea of a spring suspension provided in the vehicle. SOLUTION: The force generated by a pump 12 to move a piston rod 2 outward is directed in the direction opposite to the direction of spring force. COPYRIGHT: (C)2004,JPO
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