摘要 |
<p>The solar reflector (S) has an electro-hydraulic adjusting device (V) with a pressure source (10), a tank (R) and an electronic controller, where the adjusting device has two double-sided pressurized hydraulic cylinders (Z1,Z2), where each hydraulic cylinder has a valve group (13) with magnetized path-seat valves. The combination (K) has only path-seat valves and optional and individual commonly actuated magnets (M1,M2,M3,M4) for the activation of hydraulic cylinders.</p> |