| 摘要 |
The invention relates to a combined cycle hydraulic motor comprising, at least, three equal groups of three cylinders having a first propulsion cylinder and a second cylinder coupled to the first cylinder for the emptying thereof, both being liftably mounted in the third cylinder. The outputs of the first cylinders are connected to a hydraulic machine, and the returns are connected to the inlet of the third cylinder and to the inlet of the first cylinder of the preceding group. The outlet of the second cylinder of each group is connected to the inlet of the first cylinder of the same group, with the outlet of the third cylinder of each group being connected to the inlet of the second cylinder of the preceding group, and wherein a control unit is provided for actuating a number of electro-valves that manage the functioning in accordance with the method according to the invention. |
