Aircraft Galley Cart Airflow Layout for Reduced Cabin Footprint
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Solution Overview
Problem
Aircraft galleys require significant space for airflow supply and return components, limiting the available cabin space for passenger seating due to the wide footprint of these components.
Innovation Solution
The galley system rearranges airflow supply and return ducts and devices to reduce the galley's footprint by positioning them closer to the galley carts, allowing for a more compact design that frees up space for passenger seating, with the supply and return ducts often located along the top or bottom of the galley, and using barriers within the galley cart to control airflow effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If airflow supply and return components are routed along the rear wall of the galley, then cooling function is provided to galley carts, but the galley footprint increases by 4-5 inches
Solution Approach 1:
The patent transitions from routing airflow components along the rear wall (horizontal dimension) to routing them through the ceiling (vertical dimension). This allows supply and return ducts to be positioned above the galley carts, eliminating the need for rear wall routing and reducing the galley footprint by 4-5 inches while maintaining cooling functionality.
Solution Approach 2:
Instead of the conventional approach where supply and return ducts are positioned at the rear of the galley, the patent inverts the arrangement by positioning both ducts at the ceiling above the galley carts. This inversion allows for more efficient space utilization and reduces the horizontal footprint of the galley.
2Adaptability or versatility
If multiple galleys are provided on the aircraft, then food and beverage service capability is improved, but the total cabin space dedicated to airflow components increases significantly
Solution Approach 1:
By routing airflow components through the ceiling rather than along rear walls, the patent enables multiple galleys to be positioned closer together horizontally. This vertical routing approach eliminates the cumulative rear wall space requirement across multiple galleys, thereby increasing usable cabin volume for passenger seating and other purposes.
3Ease of manufacture
If supply and return ducts are positioned away from the galley carts, then installation is simplified, but the depth required for airflow components increases
Solution Approach 1:
The patent positions supply and return ducts in the ceiling above the galley carts rather than at the rear or sides. This vertical positioning reduces the horizontal depth required for airflow components while maintaining effective cooling delivery to the carts through downward-directed airflow.
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 configuration reduces the galley's footprint, providing additional space for passenger seating and legroom by minimizing the depth and width required for airflow components, thereby increasing the usable cabin space.
Implementation Method 1
A barrier is positioned between the supply port and the return port within the interior cavity of the cart to define a supply chamber and a return chamber to control airflow through the interior cavity
Implementation Method 2
A heat exchanger is typically provided at the top of the galley and supplies cooled air to each of the compartments or zones via a plurality of air ducts and other components
Data Source
AI summary
A galley cart includes walls defining an interior cavity extending between a front and a rear of the galley cart and the interior cavity extending between a top end and a bottom end. A supply port is provided in flow communication with the interior cavity at or near either the top end or the bottom end of the cart. A return port is provided in flow communication with the interior cavity that is adjacent the supply port at or near the top end or the bottom end of the cart. A barrier is positioned between the supply port and the return port within the interior cavity of the cart to define a supply chamber and a return chamber to control airflow through the interior cavity.