Aircraft Cargo Lining Assembly With Ductless Ventilation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional aircraft cargo hold ventilation systems require significant ducting, increasing fuel consumption and occupying valuable space, while existing designs do not efficiently utilize the triangle area around the cargo hold.
Innovation Solution
A cargo lining assembly with independent ventilation and air recirculation systems, featuring ventilation inlets and outlets positioned to maximize airflow coverage and eliminate the need for longitudinal ducts, supplemented by a recirculation system that circulates air without relying on ventilation outlets, allowing for a lightweight and space-efficient design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional ventilation systems with multiple air inlets and outlets connected to air ducts are used, then ventilation coverage is achieved, but significant ducting is required which increases fuel consumption and occupies valuable space
Solution Approach 1:
The invention extracts and eliminates the complex ducting system from the cargo hold ventilation design. Instead of using multiple air ducts running along the cargo hold, the system uses a single air inlet at the forward end and a single air outlet at the aft end, with air circulation achieved through the cargo hold interior space itself, thereby removing the need for extensive ductwork and reducing fuel consumption
Solution Approach 2:
The cargo hold interior space serves multiple functions: it acts as both the storage space for cargo and as the air circulation pathway for ventilation. The air stream flows through the cargo hold interior, providing both ventilation and space utilization, eliminating the need for separate ducting structures
2Ease of operation
If multiple air ducts are arranged in the triangle area, then ventilation is provided, but valuable space in the triangle area is occupied
Solution Approach 1:
The invention removes the air ducts from the triangle area entirely. By positioning the air inlet at the forward end wall and the air outlet at the aft end wall, with air flowing through the cargo hold interior, the system eliminates the need for ducting in the triangle area, freeing up this valuable space for other aircraft components
Solution Approach 2:
The air circulation path is repositioned from a horizontal duct-based system in the triangle area to a three-dimensional flow through the cargo hold interior volume. Air enters at the forward end, circulates through the cargo hold space, and exits at the aft end, utilizing the vertical and depth dimensions of the cargo hold rather than occupying lateral triangle area
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
This design reduces fuel consumption by minimizing ducting, optimizes ventilation efficiency, and frees up space for other aircraft components by eliminating the need for extensive ductwork in the triangle area, while maintaining temperature control and pressure regulation.
Implementation Method 1
ventilation is performed in the cargo hold by introducing air at the first transverse sidewall and extracting air at the ventilation outlet
Implementation Method 2
an air recirculation system that is independent from the ventilation inlet and the ventilation outlet
Data Source
AI summary
A cargo lining assembly for an aircraft, and an aircraft section and aircraft having the same. The cargo lining assembly has a ventilation inlet and outlet arranged at different sidewalls of the cargo lining assembly, and independent therefrom an air recirculation system. Also, an aircraft section and an aircraft with such a cargo lining assembly.