Aircraft Lavatory-Galley Monument Layout for Cabin Space Savings

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Solution Overview

Problem

The limited space within aircraft internal cabins poses a challenge for providing comfortable areas for passengers, as existing lavatories and galleys often require separate installations, occupying valuable space that could be used for seating.

Innovation Solution

A combination monument integrating a lavatory and a galley into a single unit, including a housing with a lavatory within an internal chamber and a galley coupled to the housing, featuring a cart compartment, countertop, and optionally an attendant seat, which can be secured to the cabin's structure, allowing for efficient use of space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate lavatories and galleys are installed in the aircraft cabin, then essential facilities are provided, but valuable space is occupied that could be used for seating

Engineering Contradiction:

Improvespace utilizationVSAvoidcabin space

Core Design Contradiction:

Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent combines a lavatory and a galley into a single integrated monument structure, allowing both facilities to share common walls, flooring, and structural support. This merging eliminates the need for separate installations and optimizes the use of cabin space while maintaining all essential functions of both the lavatory and galley.

Inventive Principle:

Principle #5Merging (Combining)

2Area of stationary object

If a combination monument integrating lavatory and galley is used, then space is freed for additional seating, but the device complexity increases

Engineering Contradiction:

Improveavailable seating spaceVSAvoidintegration complexity

Core Design Contradiction:

Area of stationary objectVSDevice complexity

Solution Approach 1:

The combination monument is designed as a modular structure with distinct sections for the lavatory and galley, each with its own functional components. The lavatory section includes a toilet, sink, and storage, while the galley section includes countertops, storage cabinets, and equipment mounting points. This segmentation allows for independent design optimization and simplifies installation and maintenance.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The monument structure serves multiple functions simultaneously: it provides structural support for both facilities, houses shared utilities such as electrical and plumbing systems, offers storage space through integrated cabinets and compartments, and creates a stable platform for both lavatory and galley operations. This multi-functionality reduces the need for separate structural elements.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Ease of operation

If the galley is positioned outside the internal chamber, then accessibility is improved, but the housing volume increases

Engineering Contradiction:

Improvegalley accessibilityVSAvoidhousing volume

Core Design Contradiction:

Ease of operationVSVolume of stationary object

Solution Approach 1:

The galley is positioned to extend outward from the lavatory chamber in a perpendicular direction, utilizing the lateral space within the cabin rather than expanding the chamber volume. This dimensional arrangement allows the galley to be easily accessible from the cabin aisle while the lavatory maintains its compact enclosed space, effectively using three-dimensional space optimization.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS12559237B2Combination monument having lavatory and galley for an internal cabin of an aircraft

Publication Date: 2026.02.24 THE BOEING CO

AI summary

A combination monument for an internal cabin of an aircraft includes a housing defining an internal chamber. A lavatory is within the internal chamber. A galley is coupled to the housing.