Aircraft Engine Transport Cart With Dual Support Arms

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Solution Overview

Problem

Current methods for assembling aircraft engines with test equipment and transporting these assemblies to test cells are complex, time-consuming, and prone to damage, as they lack a suitable and efficient handling solution.

Innovation Solution

A cart with a planar base frame, steerable wheels, vertically extending posts, and movable engine arms, along with adapter arms, facilitates the assembly of an aircraft engine with a test nacelle and enables efficient transportation to and from a test cell by securely engaging and disengaging the engine with the test equipment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a crane or monorail is used to manipulate the aircraft engine, then the engine can be moved and positioned, but the manipulation becomes complex and time-consuming, and there is a risk of damage to the engine and test equipment

Engineering Contradiction:
Improveease of manipulating aircraft engineVSAvoidtime-consuming assembly process
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent introduces a specialized cart as an intermediary device between the aircraft engine and the test equipment. This cart includes a base frame with vertically extending posts, engine arms for carrying the engine, and adapter arms for engaging with the adapter. The cart simplifies the manipulation process by providing dedicated engagement points and controlled movement capabilities, replacing the complex crane/monorail system and reducing assembly time while minimizing damage risk.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The handling system is segmented into distinct functional components: the base frame for stability, vertically extending posts for support, engine arms for engine carriage, and adapter arms for test equipment engagement. This segmentation allows each component to perform its specific function efficiently, improving overall ease of operation and reducing the time required for assembly operations.

Inventive Principle:
Principle #1Segmentation

2Length of moving object

If a compact cart is used for transporting the aircraft engine, then the cart width is reduced for easier transport, but the cart cannot accommodate both engine assembly and test equipment assembly operations

Engineering Contradiction:
Improvecart widthVSAvoidsuitability for assembly operations
Core Design Contradiction:
Length of moving objectVSAdaptability or versatility

Solution Approach 1:

The cart is designed as a universal platform that can perform multiple functions: transporting the aircraft engine, assembling the engine with test equipment, and facilitating disassembly operations. The base frame with vertically extending posts serves as a common structural element that supports both engine arms for engine handling and adapter arms for test equipment engagement, eliminating the need for separate specialized equipment.

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

Solution Approach 2:

The patent extends the cart structure vertically with posts that rise from the base frame, creating additional vertical space and dimensional capacity. This vertical extension allows the cart to accommodate both engine arms and adapter arms without increasing the horizontal footprint, maintaining compact width while providing the versatility needed for both assembly operations.

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

Data Source

PatentEP4200520B1Cart for assembling and transporting an aircraft engine to a test cell
Publication Date: 2024.10.09 SAFRAN AERO BOOSTERS SA
  • EP4200520B1 patent drawingFigure 1~2
  • EP4200520B1 patent drawingFigure 3~4
  • EP4200520B1 patent drawingFigure 5~6

AI summary

Disclosed is a cart (2) for transporting an aircraft engine, comprising a base frame (4) equipped with wheels (6) for riding on a floor; at least two engine arms (14, 16) extending horizontally and movable vertically relative to the base frame, structured and designed for supporting the aircraft engine; and at least two adapter arms (20) extending horizontally at a higher level than the at least two engine arms, structured and designed for supporting an adapter coupled at the top of the aircraft engine. Disclosed is also a method of transporting an aircraft engine to a test cell.