Top Burner Flame Transfer Structure for Uniform Cooker Heating

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Solution Overview

Problem

Existing top burners for cookers struggle to evenly heat food, efficiently transfer fire between outer and inner burners, and prevent imperfect combustion caused by fire transfer between burners.

Innovation Solution

A top burner design featuring an outer and inner burner system with a flame transfer slit and shielding rib, along with a gas chamber for re-ignition, ensures uniform heating and reduces imperfect combustion by effectively managing flame transfer and air flow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If fire transfer between outer and inner burners is implemented, then heating efficiency is improved, but risk of imperfect combustion increases

Engineering Contradiction:
Improveheating efficiencyVSAvoidimperfect combustion
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

A flame transfer slit is introduced as an intermediary structure between the outer and inner burners. This slit allows controlled flame propagation from the outer burner to the inner burner, ensuring complete combustion while enabling efficient heat transfer. The slit acts as a mediator that facilitates fire transfer without causing imperfect combustion.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The burner system employs different structural characteristics for the outer and inner burners. The outer burner has a larger diameter and different flame hole configuration compared to the inner burner, allowing each component to have optimized local properties for its specific function while working together for overall combustion efficiency.

Inventive Principle:
Principle #3Local quality

2Stability of the object's composition

If outer and inner burners are used simultaneously, then heating uniformity is improved, but device complexity increases

Engineering Contradiction:
Improveheating uniformityVSAvoidburner structure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The burner is divided into two distinct segments: an outer burner and an inner burner, each with specific flame holes and structural characteristics. This segmentation allows the system to achieve uniform heating across different zones (outer rim and inner area) by distributing flame output appropriately, while maintaining manageable complexity through clear functional division.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The inner burner is nested within the outer burner structure, with the inner burner positioned centrally and the outer burner surrounding it. This nested configuration enables compact design with efficient space utilization, achieving uniform heating coverage without excessive structural complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Ease of operation

If flame holes are formed on burner cap and burner head, then flame distribution is improved, but manufacturing precision requirements increase

Engineering Contradiction:
Improveflame distributionVSAvoidflame hole formation precision
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

Flame holes are formed on both the burner cap and the burner head, merging the flame generation functions of these two components. This combined approach improves flame distribution and combustion efficiency, while the integration of flame hole formation into existing manufacturing processes for these components helps manage precision requirements.

Inventive Principle:
Principle #5Merging (Combining)

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

The solution achieves uniform heating of food, minimizes imperfect combustion, and enhances operational reliability by preventing flame extinction and soup interference with the flame transfer slit.

Implementation Method 1

a flame transfer slit for transferring fire formed by combustion of mixed gas discharged from main and sub-flame holes of the outer burner to main and sub-flame holes of the inner burner

Methodology Applied
Scientific EffectFlame propagation: Combustion

Implementation Method 2

a shielding rib provided on a top surface of the outer burner cap adjacent to the flame transfer slit

Methodology Applied
Scientific EffectPhysical barrier protection: Physical Containment

Implementation Method 3

combustion of mixed gas discharged from main and sub-flame holes of the outer burner

Methodology Applied
Scientific EffectCombustion: Combustion

Data Source

PatentEP2232148B1A top-burner and cooker comprising the same
Publication Date: 2016.08.17 LG ELECTRONICS INC
  • EP2232148B1 patent drawingFigure 1
  • EP2232148B1 patent drawingFigure 2~3
  • EP2232148B1 patent drawingFigure 4

AI summary

A top burner and a cooker having the top burner are provided. A flame transfer slit for guiding the flame formed by the combustion of the mixed gas at an outer burner to an inner burner. A shielding member is provided to shield the flame transfer slit. Therefore, the object to be heated is uniformly heated and the flame transfer from the outer burner to the inner burner can be ef¬ fectively realized.