| 摘要 |
<p>The energy exchange device (30) has a sub-drive system (11) and another sub-drive system (12), where each sub-drive system has hydraulic pump (16), discharge pressure control unit (17), multiple regulator control elements (13), multiple control valves (15) and multiple set pressure scales (14). A delivery pressure (p1) is operated as scale pressure (w1) and pressure in a line (LS1) is operated as another scale pressure (w2) in a switching position (a) of an exchange-way valve (40). Another discharge pressure (p2) is operated as former scale pressure in another switching position (b).</p> |
