| 摘要 |
<p>The invention comprises an hydraulic-operated regulating arrangement, adapted such that it can offer a remote control of a control device, in the form of a control valve (21), where it is to be possible to bring a part (21a), belonging to the control device, from a first position towards and onwards to at least one second position and vice versa, where said regulator displays a first piston/cylinder arrangement (31) and a second piston/cylinder arrangement (32) and two lines or conduits (33, 34), adapted to allow a hydraulic connection between said first piston/cylinder arrangement and said second piston/cylinder arrangement. Both the first piston/cylinder arrangement (31) and the second piston/cylinder arrangement (32) are selected to be double?acting. A first means (37) is arranged such that it can prevent the entry of air into the said piston/cylinder arrangements (31, 32) and that said two lines or conduits (33, 34) are part of a hydraulic auxiliary system ('H') with two control circuits (301, 302), built up and interconnected as communicating vessels or chambers when the piston (32a) in the second piston/cylinder arrangement (32) is displaced to a predetermined position.</p> |
