Aircraft Decompression Assembly with Dual Flap Openings
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Solution Overview
Problem
Current decompression systems in aircraft require significant installation space and do not efficiently protect internal components from misuse loads while maintaining rapid pressure equalization during decompression events.
Innovation Solution
A decompression assembly with a cabin lining element featuring two decompression openings and flaps, an air channel, and a spring mechanism, allowing for quick pressure equalization between the cabin and the aircraft outer skin, while minimizing installation space and shielding internal components from misuse loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a decompression opening is integrated in the cabin lining element, then pressure equalization is enabled during decompression, but the cabin lining element requires significant installation space and internal components are exposed to misuse loads
Solution Approach 1:
The patent integrates the decompression opening directly into the cabin lining element, nesting the decompression function within the existing structural component. This eliminates the need for separate decompression devices and reduces installation space by utilizing the cabin lining element's own structure for pressure equalization
2Reliability
If a decompression opening is integrated in the cabin lining element, then pressure equalization is enabled during decompression, but internal components are exposed to misuse loads such as foot treads
Solution Approach 1:
The patent applies a protective coating or treatment to the internal components of the cabin lining element before installation, creating a preliminary protective barrier against misuse loads such as foot treads. This preliminary anti-action prevents damage to the decompression mechanism while maintaining its pressure equalization function
3Area of moving object
If the cabin lining element is designed flat to maximize foot space, then passenger foot space is increased, but the decompression opening and internal components require adequate space for functionality
Solution Approach 1:
The patent relocates the decompression opening and internal components to the rear face of the cabin lining element, utilizing the third dimension (depth) rather than compromising the front surface area. This dimensional transition allows the front face to remain flat for maximum foot space while maintaining adequate space for decompression functionality at the rear
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The decompression assembly ensures rapid and reliable pressure equalization, reduces installation space requirements, and protects internal components from misuse loads, maintaining passenger foot space without compromising decompression functionality.
Implementation Method 1
a spring mechanism (42), which is arranged in the air channel (22) and stores energy which can be used to rapidly equalize a pressure between an aircraft cabin region (26) delimited by the cabin lining element (12) and an aircraft area (30) located between the cabin lining element (12) and an aircraft outer skin (32) in the event of a decompression
Data Source
AI summary
An aircraft decompression assembly, comprising a cabin lining element, an element opening and an air channel adjacent to an element rear face and connected to the opening. A channel outlet, during normal assembly operation, discharges air exiting a cabin region delimited by the element through the opening into a secluded area between the element and an aircraft outer skin. A first decompression opening has a first decompression flap, which during normal operation, closes the first decompression opening and, in the event of a rapid decompression, opens the first decompression opening equalizing a pressure between the cabin region and the secluded area. A second decompression opening in the lining element has a second decompression flap which, during normal operation, closes the second decompression opening and which, in the event of a rapid decompression, opens the second decompression opening equalizing a pressure between the cabin region and the secluded area.