| 摘要 |
An electric motor (3) rotating in one or the other direction moves the piston (6) of a basic hydraulic cylinder (7) in one or the other direction, namely to provoke the exit of the fluid against a spring (8) bias, or the intake towards such spring through a single conduit (11) which branches into a series of conduits (20), one of which ends at a hydraulic fluid supply reservoir (13), while all the remaining conduits end at their relevant activation hydraulic cylinders (21), the pistons (22) of which have an activating rod (24) that is driven to the outside against a spring (23) bias, each conduit having an electric valve (15), (16), (17), (18) and (19) and all these valves being controlled, alike the basic hydraulic group (1), by a microprocessor that receives signals from the devices to be controlled, thus automatically giving raise to the propulsion or retraction of any one of the activating rods (24), whenever a variation in the relevant device parameter so requires. <IMAGE> |
