公开(公告)号：US20180222599A1

公开(公告)日：2018-08-09

申请号：US15888120

申请日：2018-02-05

Applicant: AIRBUS OPERATIONS LIMITED

Inventor： Christopher PAPADOPOULOS ,  Matthew MARPLES ,  Andy MOUNTY ,  Costas FANOURAKIS ,  Graham KING

IPC: B64D45/00 ,  B64C25/22 ,  B64C25/34

CPC classification number: B64D45/0005 ,  B64C13/48 ,  B64C25/22 ,  B64C25/34 ,  B64C25/58 ,  B64D45/00 ,  B64D2045/0085 ,  B64F5/60 ,  F15B1/021 ,  F15B1/24 ,  F15B15/1409 ,  F15B19/005 ,  F15B2201/205 ,  F15B2201/31 ,  F15B2201/505 ,  F15B2211/212 ,  F15B2211/6336

Abstract: A landing gear system for an aircraft includes a retractable landing gear assembly, a hydraulic actuator for actuating movement part, for example a bogie of the landing gear assembly, and an accumulator associated with the actuator. The accumulator comprises a volume of pressurised gas separated from hydraulic fluid by a separator piston. Travel of the separator piston beyond a certain position is indicative of a fault. The accumulator includes a snubbing device that acts to slow movement of the separator piston beyond that position. A monitoring system measures the time taken for the movement of the landing gear part effected by the hydraulic actuator. If the measured time is longer than a threshold time, that is indicative of a possible fault in the accumulator, that might, without the snubbing, remain undetected and/or hidden from view.

公开(公告)号：US20190263507A1

公开(公告)日：2019-08-29

申请号：US16287516

申请日：2019-02-27

Applicant: Airbus Operations Limited ,  Airbus Operations (S.A.S.)

Inventor： Mark HUDSON ,  Matthew GADD ,  Trevor BRIGHTON ,  Graham KING ,  Oliver MCCAMBRIDGE ,  Yann NICOLAS

IPC: B64C25/30 ,  B64C25/22 ,  E05F15/72 ,  E05F15/50

Abstract: A system for moving an aircraft door from an open position towards a closed position. The system includes an aircraft door actuator, an input receiving primary power from a primary power supply to power movement of the aircraft door from the open position towards the closed position, a secondary power supply to power the aircraft door actuator to move the aircraft door from the open position towards the closed position, and a controller configured to cause the secondary power supply to power the aircraft door actuator to cause the aircraft door actuator to move the aircraft door from the open position towards the closed position, on the basis of a determination that insufficient primary power is available from the primary power supply via the input to move the aircraft door from the open position towards the closed position.