Aircraft Insulation Retaining Device for Condensation Drainage

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Solution Overview

Problem

Current insulation systems in aircraft fuselages face challenges such as time-consuming installation, sagging of insulation blankets, and condensation leakage due to the use of clips and holes, which affect temperature control and passenger comfort.

Innovation Solution

A retaining device with an elongate member, comprising a flexible material, is positioned between frames in the fuselage to hold the insulation blanket against the skin panel, reducing the need for additional fastening systems and allowing condensation to drain through a channel formed between the insulation blanket and the frame.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If clips and holes are used to fasten insulation blankets, then the insulation is secured in place, but installation time increases and the insulation may sag

Engineering Contradiction:
Improveinsulation securityVSAvoidinstallation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent combines the fastening function and the insulation support function into a single integrated frame structure. The frame includes integrated fastening elements that directly attach to the insulation blanket, eliminating the need for separate clips and holes. This merging of functions reduces the number of installation steps and components, thereby reducing installation time while maintaining secure fastening.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The frame is divided into multiple segments or sections, each equipped with its own fastening elements. This segmentation allows for modular installation where each section can be independently secured, reducing the overall installation time compared to a single complex fastening system. The segmented design also provides multiple attachment points that prevent sagging by distributing the support load.

Inventive Principle:
Principle #1Segmentation

2Reliability

If clips and holes are used to fasten insulation blankets, then the insulation is secured in place, but the complexity of the fastening system increases

Engineering Contradiction:
Improveinsulation securityVSAvoidfastening system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The frame structure integrates the fastening function directly into its design, combining what were previously separate components (frame, clips, and holes) into a unified system. This merging reduces the total number of parts and simplifies the fastening system while maintaining the security of insulation attachment.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The frame serves multiple functions: it provides structural support, acts as a mounting surface for insulation, and includes integrated fastening elements. This multi-functionality eliminates the need for dedicated clips and holes, reducing fastening system complexity while maintaining secure insulation attachment.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Productivity

If insulation blankets are installed without proper support, then installation is faster, but condensation leakage occurs

Engineering Contradiction:
Improveinstallation speedVSAvoidcondensation leakage
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The frame is pre-configured with integrated fastening elements and support structures during manufacturing, so that when insulation blankets are installed, they are immediately and properly supported. This preliminary preparation ensures that condensation drainage pathways are established from the beginning, preventing leakage without requiring additional installation steps that would slow down the process.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9352821B2Retaining device for insulation in an aircraft
Publication Date: 2016.05.31 THE BOEING CO
  • US9352821B2 patent drawing
  • US9352821B2 patent drawing
  • US9352821B2 patent drawing

AI summary

A method and apparatus for installing insulation. An apparatus comprises an elongate member having a first end and a second end. The elongate member is configured to be positioned between a first frame and a second frame to hold an insulation blanket against a skin panel. The first end comprises an angled portion configured to rest against the first frame. The second end comprises a curved portion configured to receive the second frame and hold the elongate member on the second frame.