Inert Ambient Pressure Delay Mechanism for High-Altitude Egress
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Ambient pressure delays used in high-altitude aircraft emergency egress systems contain energetic materials that pose handling, shipping, and storage challenges, limiting options and increasing costs.
Innovation Solution
Inert ambient pressure delay mechanism that uses a differential pressure mechanism, including a bellows mechanism, to lock and unlock a bolt for signal transmission, eliminating the need for energetic materials and reducing potential drawbacks during shipping and use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ambient pressure delays contain energetic materials to transfer signals, then signal transmission function is achieved, but handling safety deteriorates and shipping costs increase
Solution Approach 1:
The patent removes energetic materials from the ambient pressure delay device, extracting the harmful component while preserving the essential signal transmission function through an alternative inert mechanism involving a flame front generator and pressure differential system
Solution Approach 2:
The patent introduces an inert gas or air-filled chamber as an intermediary medium to transfer the signal from input to output ports, replacing the direct energetic material combustion approach with a controlled pressure differential mechanism that achieves the same signaling function without hazardous materials
2Reliability
If ambient pressure delays contain energetic materials, then signal transmission is enabled, but shipping options are limited and storage life is reduced
Solution Approach 1:
The patent extracts energetic materials from the device, eliminating the degradation and safety concerns associated with storing combustible or explosive substances over time, thereby extending shelf life and enabling broader distribution channels
Solution Approach 2:
The patent employs consumable inert components such as replaceable flame front generators or pressure seals that can be easily replaced rather than degrading over time, allowing the main device structure to have extended service life while maintaining signal transmission capability
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 inert mechanism ensures safe and efficient signal transmission, reducing shipping costs and extending the shelf and service life of the devices while maintaining the functionality of emergency egress systems.
Implementation Method 1
a bellows mechanism configured to lock the bolt from translational movement during the first state of pressure difference and to unlock the bolt from translational movement during the second state of pressure difference
Data Source
AI summary
A pressure delay mechanism is disclosed. In various embodiments, the mechanism includes a triggering mechanism operably coupled to an input signal port and to an output signal port and configured to transmit a signal from the input signal port to the output signal port and a differential pressure mechanism operably coupled to an exterior pressure input and to an interior pressure input and configured to lock the triggering mechanism during a first state of pressure difference and to unlock the triggering mechanism during a second state of pressure difference.