Aircraft Galley Trash Compactor Layout for Space-Saving Access

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Solution Overview

Problem

Conventional aircraft trash compactors occupy excessive space in galleys, reducing available volume for food storage and preparation, and require safe and secure operation during flight.

Innovation Solution

A space-saving in-flight trash compactor system that includes a compactor mechanism and storage chamber, rotatably attached to an axle for easy access, with a trash chute and electronic control system for efficient operation and maintenance, utilizing a hydraulic system with a brushless DC motor and aircraft alloy steel actuator for compacting trash.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional trash compactors are installed in aircraft galleys, then trash compaction function is provided, but excessive space is occupied under the counter, reducing available volume for food storage and preparation

Engineering Contradiction:
Improvetrash compaction functionVSAvoidspace occupied under counter
Core Design Contradiction:
ReliabilityVSVolume of stationary object

Solution Approach 1:

The patent repositions the trash compactor from a horizontal under-counter installation to a vertical wall-mounted configuration. The compactor utilizes the vertical dimension by extending upward from the galley floor to the overhead panel, transforming the space utilization from horizontal (under counter) to vertical (wall space), thereby freeing up valuable under-counter space for food storage while maintaining the trash compaction function.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent incorporates a retractable or removable compactor mechanism that can be dynamically adjusted between operational and storage positions. The compactor unit can be retracted into a compact configuration or completely removed from the galley space when not in use, allowing the space to be dynamically allocated between trash compaction and food storage needs based on operational requirements.

Inventive Principle:
Principle #15Dynamics

2Ease of repair

If trash compactor is positioned for easy access during maintenance, then maintenance efficiency is improved, but space availability during normal operation may be compromised

Engineering Contradiction:
Improvemaintenance accessVSAvoidgalley space availability
Core Design Contradiction:
Ease of repairVSArea of stationary object

Solution Approach 1:

The patent divides the trash compactor into separable modules: a fixed mounting structure attached to the galley wall and a removable compactor mechanism. This segmentation allows the compactor mechanism to be easily detached and accessed for maintenance without disturbing the mounting structure, providing excellent maintenance access while maintaining a compact footprint during normal operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent employs a dynamically adjustable positioning system that allows the compactor mechanism to be moved between an operational position (retracted against the wall) and a maintenance position (extended outward). During normal operations, the compactor occupies minimal space; during maintenance, it can be extended for easy access, thus dynamically resolving the space-access contradiction.

Inventive Principle:
Principle #15Dynamics

3Volume of stationary object

If compact design is implemented to save space, then galley space is optimized, but device complexity may increase to achieve rotation and positioning mechanisms

Engineering Contradiction:
Improvespace usageVSAvoidrotation and positioning mechanism
Core Design Contradiction:
Volume of stationary objectVSDevice complexity

Solution Approach 1:

The patent utilizes a simple rotational joint or hinge mechanism that allows the compactor to pivot between operational and maintenance positions. This dynamic element provides space-efficient design during normal operation while enabling easy access during maintenance, and the mechanism itself is mechanically simple, avoiding excessive complexity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent employs a circular or arc-shaped rotational path for the compactor mechanism, allowing it to swing between positions along a curved trajectory. This circular motion is mechanically simpler than linear extension-retraction systems, as it can be achieved with a simple hinge or pivot point, thus saving space without significantly increasing device complexity.

Inventive Principle:
Principle #14Spheroidality (Curvature)

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

The system effectively compacts trash while minimizing space usage, allowing for easy maintenance and operation, with enhanced safety and efficiency, achieving four times more compaction efficiency compared to conventional systems and freeing up galley space.

Implementation Method 1

The trash compactor may be operated by direct or remote control... A remote control may be provided, for example, in a different physical location within the galley... Optionally, the invention may be operated semi-automatically through use of a trash level sensor within the storage chamber in communication with the compactor mechanism

Methodology Applied
Scientific EffectHydraulic system: Hydraulic Press

Implementation Method 2

The storage chamber optionally includes also one or more latches for securing the storage chamber in one or more positions

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 3

utilizing a hydraulic system with a brushless DC motor and aircraft alloy steel actuator for compacting trash

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS8707864B2Integrated vehicle galley trash compactor
Publication Date: 2014.04.29 BE AEROSPACE INC
  • US8707864B2 patent drawing
  • US8707864B2 patent drawing
  • US8707864B2 patent drawing

AI summary

A space-saving in-flight trash compactor, comprising a trash chute, a compactor mechanism disposed above a level of the trash chute, and a storage chamber removably positioned below the compactor mechanism and below a level of the trash chute. The storage chamber is vertically aligned with the compactor mechanism. The trash chute is configured to channel trash disposed through an opening of the trash chute at a level of a counter top and above a level of a top of the storage chamber into an opening of the storage chamber at the top of the storage chamber. The opening of the trash chute may be horizontally offset from the vertical alignment of the storage chamber and compactor mechanism.