| 摘要 |
<p>The invention concerns a hydraulic circuit (17) and a control valve (18) dimensioned to be capable of providing the greater part the control surface (3) actuating, which requires less power than the system maximum performances. Moreover, a bi-directional hydraulic pump (23), driven by an electric motor (24), can supply backup power which, added to said circuit (17) power, can ensure said maximum performances.</p> |
