Telescoping Flue Gas Outlet Assembly for Compact Roof Installation

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Solution Overview

Problem

Existing flue gas outlet assemblies require large packaging, storage, and transportation volumes, and are cumbersome to handle and install, especially when dealing with roof installations.

Innovation Solution

A flue gas outlet assembly comprising separable tubular parts that telescope into each other in a pre-operational condition, allowing for reduced packaging and storage volume, and a method to transition these parts into an operational configuration suitable for installation, involving separation and rotation to achieve the expanded length needed for roof placement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the flue gas outlet assembly is provided as a single integrated unit, then the structural integrity and operational reliability are maintained, but the packaging, storage, and transportation volume increases significantly

Engineering Contradiction:
Improvestructural integrityVSAvoidpackaging volume
Core Design Contradiction:
ReliabilityVSVolume of stationary object

Solution Approach 1:

The flue gas outlet assembly is divided into multiple separate tubular parts (inner tube and outer tube) that can be packaged independently or nested within each other, significantly reducing the required packaging volume compared to a single integrated unit while maintaining structural integrity through designed connection mechanisms

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The inner tubular part is designed to be inserted into the outer tubular part for packaging and transportation, creating a compact nested configuration that minimizes packaging volume. The connection ends are dimensioned to allow this nesting arrangement while ensuring proper alignment and structural stability during installation

Inventive Principle:
Principle #7Nested doll (Nesting)

2Volume of stationary object

If the flue gas outlet assembly is divided into separate tubular parts, then the packaging and storage volume is reduced, but the complexity of assembly and installation increases

Engineering Contradiction:
Improvestorage volumeVSAvoidassembly complexity
Core Design Contradiction:
Volume of stationary objectVSDevice complexity

Solution Approach 1:

The assembly is segmented into modular tubular parts with standardized connection interfaces, allowing for simplified handling and transportation while reducing installation complexity through pre-designed connection mechanisms that guide proper assembly

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection ends of the tubular parts are pre-dimensioned and pre-configured with specific geometric features (such as tapered surfaces or interlocking profiles) that automatically guide the parts into correct alignment during assembly, eliminating the need for complex alignment procedures and reducing installation complexity

Inventive Principle:
Principle #10Preliminary action

3Volume of stationary object

If the tubular parts are dimensioned to slide into each other for compact packaging, then the packaging efficiency is improved, but the precision required for connection ends increases

Engineering Contradiction:
Improvetransportation volumeVSAvoidconnection end precision
Core Design Contradiction:
Volume of stationary objectVSManufacturing precision

Solution Approach 1:

The connection ends are designed with tapered surfaces or interlocking profiles that provide self-aligning features during the nesting process, reducing the manufacturing precision requirements compared to tight-fit cylindrical connections while still achieving compact packaging and stable assembly

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP2796786B1Flue gas outlet assembly and method for installing the same
Publication Date: 2018.11.14 M & G GRP EURO
  • EP2796786B1 patent drawingFigure 1
  • EP2796786B1 patent drawingFigure 2
  • EP2796786B1 patent drawingFigure 3

AI summary

Flue gas outlet assembly having an outlet tube (4) with an outlet end (6) and a first connection end (8) opposite the outlet end (6), and a connecting tube (10) with a main connection end (12) for connecting the flue gas outlet assembly (1) to a further flue gas system and a second connection end (14) opposite the main connection end (12). The outlet tube (4) and the connecting tube (10) are separate parts, and the first connection end (8) of the outlet tube (4) and the main connection end (12) of the connecting tube (10) are dimensioned to slide into each other in a pre-operational condition.