| 摘要 |
<p>The present invention concerns a hydraulic circuit comprising a plurality of branches individually operated by a respective servo-valve, which allow the independent operation of as many rail actuators, the service pump being an only one for all the branches. The hydraulic circuit can be used according to the method of the invention to control any hydraulic actuator, and in particular conveniently in the railroad switches by varying pressure along time to avoid bending due to the interference of foreign body with the switch rails.</p> |
