| 摘要 |
A hydraulic device for controlling an actuator, comprising a body (8) having a first conduit (9; 109) destined to be connected to a first chamber (3) of the actuator (2), the body (8) having a second conduit (10; 110) destined to be connected to a second chamber (4) of the actuator (2), a connecting conduit (32) connecting the first conduit (9; 109) and the second conduit (10; 110) in order to send an operating fluid coming from the first chamber (3) towards the second chamber (4), a valve (34) having an obturator element for selectively closing the first conduit (9; 109) such that the operating fluid coming from the first chamber (3) flows towards the connecting conduit (32), control means (50) for displacing the obturator element in an open position when the pressure of the operating fluid in the second chamber (4) exceeds a predetermined value.
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