Aircraft thrust reverser actuation system including locking hooks.

The actuation system with a main actuator, secondary actuators, and locking hooks synchronizes thrust reverser movements, reducing mass and complexity while ensuring safe, synchronized operation.

FR3169942A1Pending Publication Date: 2026-06-19SAFRAN NACELLES
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Patent Information

Application Number
FR2024014107
Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2026-06-19

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Abstract

Actuation system (6) for actuating a pair of moving parts (4a, 4b) of an aircraft thrust reverser (1) (0), comprising: - a main actuator (7); - secondary actuators (8a, 8b); - a transmission mechanism (9) configured to simultaneously drive the movement of the moving elements (8a1, 8b1) of the secondary actuators (8a, 8b) to simultaneously move the moving parts (4a, 4b) to their over-retracted positions. The actuation system (6) includes a locking mechanism (10) comprising a first pair of hooks (10a1, 10a2), a first locking actuator (11a) for simultaneously moving the hooks (10a1, 10a2), and the transmission mechanism (9) opposing the movement of each of the moving elements (8a1, 8b1) as soon as at least one of the hooks (10a1, 10a2) in the locked position prevents said movement of all the moving parts (4a, 4b) via the transmission mechanism. [Figure from the summary: Fig.]3.
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Citation Information

Patent Citations

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    EP3593011B1

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    EP0861978B1

  • Thrust reverser flow limiting valve

    EP3577332B1

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    US5819527A

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    WO2001057382A2