| 摘要 |
<p>The working machine has energy recovery control unit (2) through which pivoting movement of pivotally arranged element takes place. The oil is supplied to three-chamber cylinder (1) having pre-stroke chambers (3,5) and return stroke chamber (4). The pre-stroke chamber (5) is connected with gas-pressure-filled reservoir (6). The sealing ring (12) and guide ring/belt (13) are provided at sealing and sliding surfaces (27) of chambers.</p> |
