Diffusion Cap Burner Structure for Uniform Cooktop Heat
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Solution Overview
Problem
Conventional gas cooking appliances lack an efficient mechanism for diffusing heat evenly across the cooking surface, leading to hotspots and uneven cooking results.
Innovation Solution
A gas burner design featuring a frustoconically-shaped crown with a cover and shell, creating a hollow chamber that includes angled surfaces and gas ports, which diffuses heat by positioning the flame below the cooking surface and using a cap with a hollow chamber to reduce heat transfer to the cooking utensils.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a conventional gas burner is used, then the structure is simple, but heat distribution is uneven causing hotspots
Solution Approach 1:
The burner is segmented into multiple functional components: a crown with gas ports, a hollow chamber, a shell, and a cover. This segmentation allows each component to perform a specific function in the heat diffusion process, transforming concentrated flame heat into uniform distributed heat across the cooking surface.
Solution Approach 2:
The burner employs a nested structure where the crown is positioned within the hollow chamber, which is enclosed by the shell, and finally covered by the cover. This nested arrangement creates multiple chambers and pathways for gas flow and heat diffusion, enabling uniform heat distribution while maintaining a compact overall structure.
2Temperature
If the flame is positioned directly below the cooking surface, then heat transfer to utensils is efficient, but hotspots are created
Solution Approach 1:
The hollow chamber and shell act as intermediary structures between the flame and the cooking surface. These intermediaries diffuse the concentrated flame heat through multiple gas ports and chamber surfaces before it reaches the cooking utensils, maintaining efficient heat transfer while stabilizing the temperature distribution to eliminate hotspots.
Solution Approach 2:
The frustoconically-shaped crown with its inclined annular surface and the three-dimensional hollow chamber transform the one-dimensional vertical flame heat into multi-dimensional heat diffusion. The angled surfaces and multiple gas ports distribute heat across different spatial dimensions, achieving uniform temperature distribution on the cooking surface.
3Stability of the object's composition
If heat is diffused away from utensils using a hollow chamber, then hotspots are reduced, but heat transfer efficiency may decrease
Solution Approach 1:
Different regions of the burner structure have different functional qualities: the crown with gas ports provides localized heat injection points, the hollow chamber provides diffusion space, and the shell provides thermal insulation. This local quality differentiation ensures that heat is diffused uniformly while maintaining overall heat transfer efficiency to the cooking surface.
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 design achieves uniform heat distribution across the cooking surface, reducing hotspots and ensuring consistent cooking results by diffusing heat away from utensils and using the shell as an insulator to manage heat transfer.
Implementation Method 1
using the shell as an insulator to manage heat transfer
Implementation Method 2
diffuses heat by positioning the flame below the cooking surface and using a cap with a hollow chamber to reduce heat transfer to the cooking utensils
Data Source
AI summary
A gas burner for a cooking appliance includes a frustoconically-shaped crown having a plurality of gas ports defined therein, a cover positioned above the crown, and a shell secured to the cover and positioned on the crown. The shell defines a hollow chamber positioned between the crown and the cover.