| 摘要 |
PROBLEM TO BE SOLVED: To provide an architecture for a simplified structure for a system operating a landing gear of an aircraft. SOLUTION: This invention relates to the hydraulic system for operating the landing gear of an aircraft including a hydraulic circuit comprising a first hydraulic line "DOWN" 6 that, when pressurized, causes the landing gear to be lowered, and a second hydraulic line "UP" 5 that, when pressurized, causes the landing gear to be raised, the lines being selectively pressurized by a hydraulic distribution means comprising at least one isolation valve 10 and a selector 12 for putting one of the lines into communication with a transmission path and the other line into communication with a return path. According to the invention, this architecture includes a passive bypass means 55 for bypassing the selector, the means being disposed between the second line "UP" 5 and an admission line 20 that extends between the isolation valve and the selector, and a forced return path connection means 53 for forcing the isolation valve 10 to isolate the pressure circuit of the aircraft and connect the admission line to the return path. COPYRIGHT: (C)2008,JPO&INPIT
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