| 摘要 |
The equipment has a movable element moved over a working-hydraulic cylinder, and an energy recovering cylinder (3) recovering energy from motion of the movable element. The movable element comprises a chamber (42) filled with gas. The chamber stays in effective connection with an internal pressure reservoir (40), which works against pressure increase in the chamber from maximum pressure. The pressure reservoir has operating pressure, which defines maximum pressure. A pressure control valve is provided for the chamber, and the maximum pressure lies below triggering pressure of the valve. |
