AIRCRAFT DOOR ARCHITECTURE WITH AN EMERGENCY ENERGY SOURCE

DE602021031223T2Active Publication Date: 2025-05-21LATECOERE
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Patent Information

Application Number
DE602021031223
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-12-05
Filing Date
2021-11-26
Publication Date
2025-05-21
Estimated Expiration
2041-11-26

AI Technical Summary

Technical Problem

Aircraft door architectures rely on heavy and costly pressurized gas cylinders for emergency door opening and inflatable evacuation devices, requiring frequent maintenance and complex logistics, which can lead to inadvertent door opening risks.

Method used

An aircraft door architecture utilizing a single emergency electric power source to activate both the ejector and inflatable evacuation device, eliminating the need for compressed gas and enabling electronic control for efficient and regulated emergency operations.

Benefits of technology

This solution reduces the mass, cost, and maintenance of emergency systems while ensuring safe and rapid emergency door opening and evacuation, with the electric power source being segregated from the main aircraft energy management to prevent inadvertent door openings.

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Abstract

An aircraft door architecture comprising: a door (1); an ejector (3); an inflatable evacuation device (4); an emergency energy source (6) connected to the ejector (3) and to the inflatable evacuation device (4); a control unit (9) comprising the two following operating states: a nominal operating state in which the inflatable evacuation device (4) is kept in its retracted position and the emergency energy source is deactivated; an emergency operating state in which the emergency energy source (6) activates the actuation means of the ejector (3) in an emergency opening mode of the door (1), and activates the inflation means of the inflatable evacuation device (4) in an emergency inflation mode.
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