High-capacity sparkless mobile double-insulated wood pellet burner unit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional wood fire pits generate excessive smoke and sparks, posing safety hazards and being inadequate in capacity and flame reliability, which limits their use and safety, especially when installed on outdoor wooden decks.
Innovation Solution
A high-capacity, sparkless, mobile, double-insulated wood pellet burner unit with a cylindrical outer housing and a removable inner combustion vessel, featuring a multi-directional flow of heated combustion air that produces a large, smoke-free, and spark-free flame, along with a wind break radiant heat reflector and casters for easy movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional wood fire pits are used, then warmth and ambiance are provided, but excessive smoke and sparks are generated creating safety hazards
Solution Approach 1:
The patent changes the combustion parameters by using wood pellets instead of conventional wood, and controls the air-to-fuel ratio through regulated air intake. This creates a cleaner burn that significantly reduces smoke and sparks while maintaining the warmth and ambiance benefits
Solution Approach 2:
The patent introduces a controlled supply of oxygen through air intake registers and combustion air systems. This accelerated oxidation enables complete combustion of wood pellets, reducing harmful emissions of smoke and unburned particles while maintaining efficient heat production
2Adaptability or versatility
If conventional fire pits are installed on wooden decks, then outdoor use is enabled, but fire hazard increases due to heat and sparks
Solution Approach 1:
The patent introduces non-combustible floor protection components including steel flooring and heat-resistant barriers between the fire pit and wooden deck. These intermediaries prevent direct contact between heat/sparks and combustible surfaces, enabling safe installation on wooden decks while maintaining outdoor versatility
Solution Approach 2:
The patent extracts and removes the harmful elements (sparks and excessive heat) through spark screens, wind guards, and controlled combustion chambers. This isolation of harmful factors allows the fire pit to be safely placed on wooden decks without transferring fire hazard to the surrounding environment
3Quantity of substance
If conventional fire pits are used, then basic burning function is provided, but capacity and flame reliability are deficient
Solution Approach 1:
The patent incorporates a hopper system that pre-stores wood pellets above the combustion chamber. This preliminary positioning of fuel ensures continuous supply and consistent flame reliability, allowing the fire pit to maintain high burning capacity without interruption or flameouts
Solution Approach 2:
The patent designs a continuous combustion system with regulated air intake and automated or manual pellet feeding mechanisms. This ensures uninterrupted fuel supply and consistent combustion conditions, maintaining high flame reliability and burning capacity throughout extended operation periods
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 unit safely operates on wooden surfaces, producing a full and tall flame for up to three hours with 40 pounds of wood pellets, reducing fire hazards and enhancing safety and ambiance, while maintaining surface temperatures below 100°F due to dual insulation and efficient combustion.
Implementation Method 1
The air gap can be configured to divide the outside air into a first branch having downward flowing heated combustible air in the air gap, and a second branch having upward flowing heated combustible air in the air gap
Implementation Method 2
The one or more orifices through the grate are of such size as to allow the heated combustible air to flow through the grate in an upward direction through the wood pellets to form a gasification of the wood pellets into wood pellet gases
Implementation Method 3
an inner insulation layer disposed beneath the inner combustion vessel within the outer housing, and an outer insulation layer that is spaced apart from the inner insulation layer
Data Source
AI summary
Embodiments of the inventive concept provide a high-capacity, sparkless, mobile, double-insulated wood pellet burner unit. The wood pellet burner unit is safely operated on a wood floor or deck. The wood pellet burner unit produces a large radiant flame that enhances the surrounding area, free from dangerous sparks and smoke. The ash and coals from the fire are enclosed within a double-insulated housing. A wind break radiant heat reflector protects the flame from being distorted, enhances the flame so that it remains in a substantially upright column, and reflects some of the heat outwardly toward the users. Casters disposed on the bottom of the wood pellet burner permit easy and convenient movement of the unit. The wood pellet burner unit disclosed herein produces a larger and fuller flame than a pure gas fire pit based on a balanced multi-directional flow of heated combustion air flow through the unit.