Removable filter system

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Solution Overview

Problem

Conventional air filters in gas boilers become clogged over time, leading to incomplete combustion and potential flashback phenomena due to the inability to maintain a consistent air-to-fuel ratio, as they fail to effectively filter out contaminants and are not easily replaceable.

Innovation Solution

A removable filter system that detachably couples a filter unit to the air supply unit in a boiler, featuring a support portion with a guide hole, a handle portion, and a filter that can be easily replaced by inserting the support portion into a protrusion part and guide groove, allowing for easy removal and installation of new or cleaned filters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a filter unit is installed at the air inlet to filter foreign materials, then air quality is improved and combustion efficiency is maintained, but the filter unit becomes completely clogged over time and cannot be easily replaced

Engineering Contradiction:
Improvecombustion efficiencyVSAvoidfilter replacement ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The filter system is divided into separate components: a filter element that can be removed independently from the air inlet housing. The filter element includes a filter portion and a handle portion that can be grasped and pulled out separately, allowing easy replacement without disassembling the entire air inlet structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A handle portion is introduced as an intermediary component between the user and the filter element. The handle portion extends from the filter element and can be grasped by users to easily remove and replace the filter element. The handle may include guide protrusions that fit into guide grooves in the housing for proper positioning and removal.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a filter unit is installed at the air inlet to filter foreign materials, then air quality is improved, but the filter unit becomes completely clogged and essential air for combustion cannot be provided

Engineering Contradiction:
Improvecombustion efficiencyVSAvoidair supply quantity
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The filter system transitions from a static, fixed filter to a dynamic, replaceable filter element. The filter element can be removed and replaced when clogged, allowing the system to maintain optimal air supply quantity throughout its operational life. The handle portion enables easy removal to prevent complete clogging that would restrict air flow to the combustion device.

Inventive Principle:
Principle #15Dynamics

3Object-affected harmful factors

If a filter unit is installed around the air inlet, then foreign materials are filtered out, but the filter unit is not easily replaceable and requires complex disassembly

Engineering Contradiction:
Improveforeign material filtrationVSAvoidfilter replacement ease
Core Design Contradiction:
Object-affected harmful factorsVSEase of repair

Solution Approach 1:

The filter system is segmented into a removable filter element and a stationary housing structure. The filter element can be independently extracted through the air inlet opening without disassembling the housing, making maintenance simple and quick.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The handle portion serves as a mediator that facilitates easy removal of the filter element. Users can grasp the handle to pull the filter element out through the air inlet opening. Guide protrusions on the handle align with guide grooves in the housing to ensure proper positioning and smooth removal.

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables efficient and safe replacement of filters, ensuring consistent air quality and preventing clogging issues, thereby maintaining proper combustion efficiency and preventing flashback phenomena.

Implementation Method 1

a filter unit including a support portion formed to cover an inside of the air supply unit and having a guide hole formed in a central portion, a handle portion integrally connected to one side of the support portion and formed to cover the penetrating part, and a filter for covering the guide hole

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentUS12157082B2Removable filter system
Publication Date: 2024.12.03 CHOI JIN MIN
  • US12157082B2 patent drawing
  • US12157082B2 patent drawing
  • US12157082B2 patent drawing

AI summary

The present disclosure relates to a removable filter system for removably coupling a filter unit to an air supply unit provided in a boiler. The filter unit is detachably coupled to the air supply unit, so that after removing the contaminated filter unit coupled to the air supply unit, a new filter unit can be coupled to the air supply unit or the existing filter unit can be reused after removing contaminants remaining in the filter.