| 摘要 |
System based on the use of respective hydraulic motors 4 coupled directly on the corresponding elements 5 to be actuated, which motors 5 can be jointly actuated by means of a body of pumps 1 actuated by a propulsion motor 2, it being possible, in a selectively variable manner, to control the sending of the actuating fluid from the aforesaid body of pumps 1, by means of the set of electrovalves 24, whilst, by means of a neutralising valve 23 interposed in the circuit, it is possible in turn to control the cutting-off and opening-up of the circulating flow towards the motor 4, whilst, with an inverter 25, it is possible likewise to control alternation of the outward and return conduits for the fluid for the functional rotation of the aforesaid motors 4 in one direction or another. <IMAGE>
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