Airflow-Regulated Smoker Venting for Controlled Smoke Generation
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Solution Overview
Problem
Conventional smoking devices often allow excessive smoke escape, leading to incomplete combustion and reduced smoky flavor, as they do not effectively manage airflow to maintain optimal oxygen levels for smoking materials.
Innovation Solution
A smoking device that encloses smoking materials within a cavity, allowing controlled airflow rates of approximately 1.5E-5 to 3.5E-5 grams of oxygen per second per cubic inch, achieved through strategically positioned air inlets and exhausts, to prevent full combustion while producing ample flavorful smoke.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional smoking devices use open or loosely covered enclosures, then smoke can escape freely, but this leads to excessive oxygen availability causing full combustion and flaming of smoking material
Solution Approach 1:
The smoking box employs a porous ceramic material for its walls that allows controlled diffusion of oxygen through the structure. This porous design limits oxygen availability to sub-stoichiometric levels, preventing full combustion while maintaining reliable operation without risk of flaming
Solution Approach 2:
The invention changes the oxygen concentration parameter within the smoking box by using a sealed enclosure with controlled permeability. This parameter control maintains oxygen levels below the threshold for complete combustion, ensuring reliable prevention of flaming while still allowing sufficient oxygen for smoke generation
2Quantity of substance
If conventional smoking boxes trap most smoke within the enclosure, then smoke exposure to food is improved, but pressure buildup occurs without adequate escape openings
Solution Approach 1:
The porous ceramic walls act as pressure-regulating barriers that allow controlled passage of gases. This enables the enclosure to maintain high smoke concentration for food exposure while simultaneously relieving internal pressure buildup through the porous structure, avoiding the need for large escape openings
3Reliability
If smoking material is enclosed in a sealed box, then combustion control is improved, but smoke production decreases due to insufficient oxygen flow
Solution Approach 1:
The porous ceramic enclosure provides controlled oxygen diffusion that maintains sub-stoichiometric conditions for reliable combustion control while still supplying sufficient oxygen to generate adequate smoke production. The porous structure enables simultaneous achievement of both combustion control and smoke generation
Solution Approach 2:
The invention uses natural convection currents and pressure differentials to drive oxygen through the porous walls and smoke out through the food chamber. This pneumatic system controls combustion reliably while maintaining sufficient oxygen flow for continuous smoke production
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
This approach ensures optimal smoke creation and flavoring for food without risking the smoking material from catching fire, enhancing the smoky flavor and appearance of cooked items.
Implementation Method 1
permitting air and oxygen to flow through, and be consumed for combustion in, the smoker in limited amounts, such as only approximately 1.5E-5 to approximately 3.5E-5 oxygen grams per second per cubic inch volume of the smoker. The resulting smoking may prohibit full combustion or flaming while producing smoke
Implementation Method 2
Desired airflow rates can be achieved through natural convection and proper placement of air inlets and exhausts
Data Source
AI summary
Smokers can enclose smoking subjects for production of trapped smoke with limited airflow. Optimal airflow rates and resulting smoking effects can be achieved through smokers. If a smoker has approximately 60 cubic inches volume, four 2-millimeter holes at an air inlet point achieves desired airflow and oxygen consumption in typical fills and cooking temperatures. Smokers may include a lid or other seal or access point to permit placement and enclosure of smoking materials. Smokers are useable with conventional grills and may be shaped to sit on grill racks without blocking desired airflow by grill components or smoking materials. Smokers may include a detachable handle for safer handling and heating.