Portable fire pit system, device, and method thereof
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Solution Overview
Problem
Existing portable smokeless fire pits face issues with damage to decks due to high temperatures, difficulty in cleaning, and lack of compact storage or transportation options.
Innovation Solution
A portable fire pit design featuring a main body with an outer and inner wall, a base body, and a stand, which includes air inlets and gaps to facilitate secondary burning, minimize exterior heating, and allow for easy disassembly for cleaning and compact storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a smokeless fire pit design is used to minimize smoke generation, then smoke control is improved, but the exterior temperature becomes excessively high causing damage to deck surfaces
Solution Approach 1:
The fire pit is divided into distinct functional zones: an inner chamber for combustion, a middle insulation layer, and an outer wall for user contact. This segmentation isolates the high-temperature combustion zone from the exterior surface, allowing smokeless burning while protecting the deck from excessive heat.
Solution Approach 2:
Thermal insulation materials are introduced as an intermediary layer between the combustion chamber and the exterior wall. This mediator reduces heat transfer to the outer surface, enabling the fire pit to maintain low exterior temperatures even during intense smokeless combustion.
2Strength
If the fire pit structure is made solid and integrated for stability, then structural strength is improved, but cleaning accessibility and portability are reduced
Solution Approach 1:
The fire pit is constructed as an assembly of separate components including a removable grate, detachable ash pan, and separable wall sections. These segmented parts maintain structural integrity when assembled but can be easily disassembled for thorough cleaning and storage, resolving the contradiction between strength and cleaning accessibility.
3Reliability
If the fire pit is designed as a single integrated unit for operational stability, then operational reliability is improved, but storage and transportation efficiency are reduced
Solution Approach 1:
The fire pit components are designed to separate into modular units that can be nested within each other during storage. The grate, ash pan, and wall sections fit concentrically, reducing the storage volume to a fraction of the expanded operational size while maintaining reliability when assembled.
Solution Approach 2:
Smaller components are designed to nest within larger ones: the ash pan fits inside the main chamber, the grate fits inside the ash pan, and smaller accessories nest within the wall structure. This nesting arrangement minimizes storage and transportation volume while preserving operational integrity.
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 enables smokeless burning, prevents deck damage, simplifies cleaning, and allows for easy storage and transportation by minimizing heat transfer and facilitating disassembly.
Implementation Method 1
The gap is sized and configured to draw air through the gap and through the multiple openings defined in the inner wall
Implementation Method 2
The base body includes inlets defined therein, the inlets sized and configured to draw air through the base body and below the grate within the chamber of the main body
Implementation Method 3
employing a secondary air flow source to provide a second burn of the smoke from the burning wood
Data Source
AI summary
A portable fire pit including a main body, a base body, and a stand. The main body includes an outer wall and an inner wall extending parallel to define a gap, the gap being sized and configured for air to enter a chamber defined by the inner wall of the main body. The chamber including a grate positioned therein. The base body and the stand positioned beneath the main body. The base body defining an upper level and a lower level. The upper level and lower level defining inlets positioned therebetween such that the gap provides air flow to an upper portion of the chamber and the inlets provide air flow to a lower portion of the chamber of the main body.