Monolithic Engine Support Structure for Modular Aerial Vehicle Assembly

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Solution Overview

Problem

Existing aerial vehicle designs with gas turbine engines and vehicle bodies lack efficient integration and modular support structures, leading to complexity and high manufacturing and assembly costs.

Innovation Solution

An integrated monolithic structure that combines the gas turbine engine and vehicle body with a support structure, formed as a single unitary body using additive manufacturing, allowing for simplified assembly and reduced part count.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If separate engine support structure and vehicle body sections are used, then assembly flexibility is improved, but device complexity and manufacturing costs increase

Engineering Contradiction:
Improvemanufacturing costVSAvoidstructure complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent combines the engine support structure and vehicle body sections into a single integrated monolithic component formed by additive manufacturing. This merging eliminates the need for separate parts and their associated assembly operations, directly reducing manufacturing cost and structural complexity while maintaining functional requirements.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of repair

If multiple separate components are used for engine mounting, then ease of repair is improved, but device complexity and part count increase

Engineering Contradiction:
Improvemaintenance efficiencyVSAvoidpart count
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The integrated monolithic component incorporates internal segmentation with hollow cavities that can house bearing assemblies and other maintenanceable elements. This allows the overall structure to be single-piece (reducing part count) while maintaining internal functional segmentation for ease of repair and maintenance access.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The design nests bearing assemblies and other components within hollow cavities of the monolithic structure. This nesting approach eliminates the need for separate mounting brackets and fasteners, reducing the overall part count while maintaining the ability to access and service internal components.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Productivity

If traditional manufacturing methods are used for support structures, then manufacturing precision is maintained, but productivity and assembly time decrease

Engineering Contradiction:
Improveassembly speedVSAvoidstructural accuracy
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent employs additive manufacturing technology which fundamentally changes the manufacturing parameters from traditional subtractive or formative methods. This enables the direct fabrication of complex monolithic geometries with high precision features, including internal cavities and mounting interfaces, in a single manufacturing process that inherently ensures structural accuracy while eliminating multi-step assembly operations.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP4331994B1Vehicle component with integrated engine support structure and body section
Publication Date: 2026.03.04 RTX CORP
  • EP4331994B1 patent drawingFigure 1
  • EP4331994B1 patent drawingFigure 2
  • EP4331994B1 patent drawingFigure 3

AI summary

An assembly (20) for an aerial vehicle includes a vehicle body (24), a gas turbine engine (22) and a support structure (26). The vehicle body (24) includes a body section (111). The gas turbine engine (22) includes a stationary structure (66). The gas turbine engine (22) is housed within the vehicle body (24). The support structure (26) extends between and is connected to the body section (111) and the stationary structure (66). The support structure (26) supports the gas turbine engine (22) within the vehicle body (24). The body section (111), the stationary structure (66) and the support structure (26) are included in a monolithic body (70).