Portable Oven Skirt Structure for Heat Retention and Surface Protection
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Solution Overview
Problem
Traditional wood-fired ovens are often heavy, lack flexibility in location, and suffer from reduced heat retention and safety risks due to heat conduction, while portable metal ovens face issues with heat damage to support surfaces and reduced heat retention.
Innovation Solution
A portable wood-fired oven design featuring a skirt that raises the cooking surface, restricts fluid communication underneath, and includes a multi-layered structure with an inner and outer skirt for improved heat retention and portability, using refractory materials and insulation to minimize heat damage to support surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a portable oven uses metal as the main structural component to reduce weight and improve portability, then the oven becomes lighter and more portable, but heat retention is reduced and safety risks increase due to heat conduction
Solution Approach 1:
The oven employs a composite structure combining metal components with insulating materials. The metal housing provides structural strength and portability, while integrated insulating layers (such as ceramic fiber or air gaps) prevent heat loss and reduce exterior surface temperature, thereby maintaining heat retention without sacrificing mobility.
2Object-affected harmful factors
If the cooking surface is spaced from the support surface to prevent heat damage, then heat damage to the support surface is reduced, but heat retention is also reduced
Solution Approach 1:
An intermediary insulating structure (the skirt or support legs) is introduced between the cooking surface and the support surface. This intermediary element blocks direct heat transfer to the support surface while simultaneously serving as part of the thermal insulation system to retain heat within the cooking chamber.
3Reliability
If a fixed brick oven is used to provide good heat retention, then heat retention is improved, but flexibility of location is reduced and substantial space is required
Solution Approach 1:
The oven transitions from a fixed, large-scale brick construction to a portable design with modified dimensional parameters. By reducing the overall size and using lightweight materials with high insulating properties, the oven maintains adequate heat retention while becoming movable and adaptable to various locations including outdoor and indoor settings.
4Reliability
If expensive outer protective coverings are added to reduce safety risks and prevent warping, then safety is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
Instead of adding complex rigid protective coverings, the design uses flexible or semi-rigid insulating shells and thin film barriers that provide thermal protection and prevent warping. These layers are integrated into the existing structure, offering safety benefits without significantly increasing manufacturing complexity.
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 enhances heat retention, reduces heat damage to support surfaces, and allows for safe, portable use without the need for additional protective coverings, while maintaining a compact and lightweight structure.
Implementation Method 1
the skirt delineates the side walls of a cavity extending beneath the cooking surface and is operable to restrict fluid communication between the external atmosphere and the cavity arranged underneath the cooking surface
Implementation Method 2
using refractory materials and insulation to minimize heat damage to support surfaces
Data Source
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AI summary
There is described a portable oven, such as a wood-fired oven. The oven comprises a housing and a cooking surface arranged within the housing. The housing comprises a skirt extending below the cooking surface such as to raise the cooking surface from the bottom edge of the oven. There is also provided a method for making a portable oven.