Compact Vent Panel Latch for Aircraft Door Pressure Control
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Solution Overview
Problem
Existing pressurization prevention systems for aircraft cabins are bulky and difficult to integrate into smaller aircraft doors, posing a challenge in maintaining safe cabin pressure while adhering to space constraints.
Innovation Solution
A compact latching, locking, handle, and pressure prevention system that includes a vent panel coupled with a first protrusion, allowing the vent panel to move between pressurization, depressurization, and intermediate positions, effectively managing cabin pressure within limited space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pressurization prevention system is installed in smaller aircraft doors, then cabin pressure safety is maintained, but the system occupies significant space that is difficult to incorporate within limited door space
Solution Approach 1:
The patent integrates the pressurization prevention system within the existing door structure by nesting the vent panel and protrusion mechanism into the door's available space. The vent panel is positioned within the door structure, and the protrusion engages with features on the door, effectively nesting the safety system within the existing architectural envelope rather than adding external bulk.
Solution Approach 2:
The door structure is designed to serve multiple functions: it provides the primary barrier function while also housing the pressurization prevention system. The vent panel and protrusion mechanism are integrated into the door assembly, allowing the door to simultaneously maintain structural integrity, enable pressurization control, and prevent unauthorized or improper cabin pressurization without requiring separate dedicated space.
2Reliability
If the vent panel is positioned to close the depressurization vent for pressurization, then the aircraft can be pressurized, but the first protrusion must abut the door structure to maintain position
Solution Approach 1:
The protrusion automatically engages with the door structure when the vent panel is moved to the closed position, and vice versa. The mechanical interaction between the protrusion and door structure features provides self-positioning and self-locking functionality, where the components guide each other into the correct configuration without requiring external actuators or complex control systems.
Solution Approach 2:
The positioning function and locking function are merged into a single mechanical interaction between the protrusion and door structure. The same protrusion that prevents improper pressurization also serves to position and secure the vent panel in the closed configuration, combining multiple functions into one integrated mechanism rather than using separate systems for positioning and securing.
Data Source
AI summary
Systems, apparatuses, and methods provide for technology that moves a vent panel into a pressurization position to close a depressurization vent to allow an apparatus to be pressurized. In the pressurization position, a first protrusion abuts a door structure. The vent panel is coupled with the first protrusion. The technology moves the vent panel to a depressurization position to open the depressurization vent to depressurize the apparatus. In the depressurization position the first protrusion is separated from the door structure. The technology moves the vent panel to an intermediate position between the pressurization position and the depressurization position. In the intermediate position the first protrusion abuts the door structure.