Aircraft PSU Unitary Chassis Modular Integration

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Solution Overview

Problem

Existing aircraft passenger service units (PSUs) are heavy, costly, and difficult to install, with separate components that require gap sealing and are not interchangeable, leading to high installation costs and limited customization for different airline configurations and seating arrangements.

Innovation Solution

A unitary chassis with interchangeable modules that integrates air vents, reading lights, and display modules, featuring an adjustable spacer for varying seat pitches and a projector for passenger information, reducing weight and installation complexity while allowing customization for different airlines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If separate components are used for each PSU feature (oxygen, lighting, gasper), then each component can be independently designed, but the overall device weight increases and installation complexity increases due to gap sealing requirements

Engineering Contradiction:

ImproveIndependent component designVSAvoidPSU weight

Core Design Contradiction:

Ease of manufactureVSWeight of moving object

Solution Approach 1:

The patent combines separate PSU components (gasper, reading light, oxygen mask, display) into a single integrated housing structure. The housing serves as a common platform that eliminates the need for separate component housings and gap sealing, thereby reducing overall weight while maintaining independent functionality of each feature through modular internal arrangements.

Inventive Principle:

Principle #5Merging (Combining)

2Ease of manufacture

If separate components are used for each PSU feature, then component independence is maintained, but installation difficulty increases due to gap sealing requirements between components and fixtures

Engineering Contradiction:

ImproveComponent independenceVSAvoidInstallation ease

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

The integrated housing design consolidates multiple components into a single assembly unit that installs as one piece. The housing includes integrated mounting features and spacing elements that eliminate the need for gap sealing between separate components and fixtures, significantly simplifying installation while maintaining component independence through internal modular design.

Inventive Principle:

Principle #5Merging (Combining)

3Ease of operation

If separate lighting and gasper components are used, then each component can be independently adjusted, but the number of components increases leading to higher costs and installation difficulty

Engineering Contradiction:

ImproveIndependent adjustment capabilityVSAvoidNumber of components

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The housing integrates the gasper and reading light into a single unified component assembly. The gasper includes an integrated lens assembly that incorporates the reading light, allowing both features to be independently adjusted through separate control mechanisms while physically occupying a single component space, thereby reducing the total number of components.

Inventive Principle:

Principle #5Merging (Combining)

4Adaptability or versatility

If PSU components are designed for specific airline configurations, then customization for different airlines is achieved, but interchangeability between airlines is lost leading to high costs

Engineering Contradiction:

ImproveAirline-specific customizationVSAvoidInterchangeability

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The housing is designed as a universal platform that can accommodate different component configurations and arrangements to suit various airline requirements. The integrated design with modular internal components allows the same housing structure to be customized for different airlines' seating configurations and feature selections, maintaining interchangeability while enabling customization.

Inventive Principle:

Principle #6Universality (Multi-functionality)

5Reliability

If spacer panels or specialty function panels are used to seal gaps between PSU fixtures, then gap sealing is achieved, but device complexity and installation cost increase

Engineering Contradiction:

ImproveGap sealingVSAvoidAdditional sealing components

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The housing incorporates integrated spacing elements and sealing features directly into its structure. The housing design includes built-in mechanisms that provide both the spacing function and the gap sealing function, eliminating the need for separate spacer panels or specialty function panels, thereby reducing device complexity while maintaining reliable sealing.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS10414499B2Passenger service unit and related systems

Publication Date: 2019.09.17 PECO

AI summary

A passenger service unit (PSU) for a transport vessel has a unitary chassis with a plurality of apertures extending therethrough. Each one of the apertures is independently sized to receive at least one of a plurality of different modules. Each one of the modules includes one or more PSU fixtures having components different from other ones of the plurality of modules. A representative vessel is a passenger aircraft. Representative modules include vent and passenger reading light module, speaker module, passenger oxygen supply module and display module.