Hydraulic drive for a reefing device, and a reefing equipped with such a drive device

摘要

The invention relates to a hydraulic drive (1) a for a sail (7) of a sail vehicle (3) certain reefing device (2). The drive (1) by means of a is from a forward flow pipe (8) and a return line (9) existing line connection to a fluid reservoir (10) for a hydraulic fluid, and can be operated in such a way that this during the winding of the sail (7) as a drive (1) serves, when unwinding of the sail (7), on the other hand, as a pump for the hydraulic fluid. Within the fluid reservoir (10) is designed as a piston separating body (11) arranged to be movable in a translatory manner, in which the fluid reservoir (10) into two variable chambers (12, 13) divides. In this case, the separating body (11) by means of a spring element in such a way (14) in the direction of a the volume of the second chamber (13) and at the same time reducing the volume of the first chamber (12) biased which increases the storage position is the fact that the unwinding of the sail (7) of fluid conveyed against this restoring force (f) into the chamber (12) is conveyed. According to the invention, in a simple manner a part of the increase of the sail area of the sail (7) force acting by means of the spring element (14) is stored and is then on the winding of the sail (7), can be used, wherein the installation effort for the drive according to the invention (1) is much less than a with an electric motor driven pump drive, which is connected and, in addition, a power supply, there is no need for.n="16"