Filter Mounting Assembly With Covered Connecting Elements

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Solution Overview

Problem

Existing filter devices in gas turbines are prone to damage due to connecting elements detaching and being sucked into the turbine, despite high demands for protection against dust and solids.

Innovation Solution

A mounting assembly design where a second filter element is positioned to cover the first connecting element, ensuring it remains secured and protected, thereby preventing detachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If connecting elements are used to attach filter elements to the mounting element, then the filter device can be assembled and disassembled, but the connecting elements may detach and be sucked into the gas turbine causing damage

Engineering Contradiction:
Improveassembly and disassembly capabilityVSAvoidconnecting element retention
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The connecting element is nested within the frame element structure. The frame element has a receiving space that accommodates the connecting element, and a cover element that closes this space, effectively nesting the connecting element within the frame element's protective enclosure. This prevents detachment while maintaining assembly/disassembly capability.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The cover element acts as an intermediary component between the frame element and the connecting element. It mediates by providing a protective closure that secures the connecting element within the frame element's receiving space, preventing direct exposure and potential detachment while allowing controlled access for assembly and disassembly.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If additional components are added to cover or secure the connecting elements, then the reliability increases, but the device complexity and material costs increase

Engineering Contradiction:
Improveconnecting element protectionVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The cover element serves multiple functions simultaneously: it closes the receiving space of the frame element, protects the connecting element from detachment, and maintains the structural integrity of the filter element assembly. This multi-functionality reduces the need for separate dedicated protective components, thereby reducing overall device complexity while improving reliability.

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

Data Source

PatentEP4624016A1Mounting assembly for a filter device with a connecting element
Publication Date: 2025.10.01 AAF LTD
  • EP4624016A1 patent drawingFigure 1~2
  • EP4624016A1 patent drawingFigure 3~4
  • EP4624016A1 patent drawingFigure 5~6

AI summary

The present invention relates to a mounting assembly for a filter device comprising a mounting element, at least one first filter element being fixed to the mounting element by means of a first connecting element, and at least one second filter element being arranged adjacent to the first filter element, wherein the first connecting element is to be covered by locating the second filter element to the mounting element.