Front-Mounted Oven Air Circulator for Uniform Heat Distribution
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Solution Overview
Problem
Vertically oriented ovens experience heat stratification due to the elongated cooking chamber, leading to uneven cooking, and existing fans fail to effectively circulate heat and smoke, especially when overloaded with food.
Innovation Solution
A heat and air circulator system with a front-mounted air mover that produces turbulent airflow by directing heated air rearward in the cooking chamber, utilizing a combination of a fire chamber below the cooking chamber and a fan assembly to create a horizontal air stream that impinges on a wall, promoting uniform temperature distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the oven is vertically oriented to save space, then the vertical space utilization is improved, but heat stratification occurs leading to uneven cooking
Solution Approach 1:
The air mover is divided into multiple independent blades that segment the airflow into multiple streams, creating turbulent flow patterns that break up heat stratification layers and distribute heat more uniformly throughout the vertically elongated cooking chamber
Solution Approach 2:
The air mover redirects horizontal airflow from the fire chamber into vertical and diagonal flow patterns within the cooking chamber, adding dimensional complexity to the airflow path and preventing stagnant heat zones that cause stratification
2Productivity
If fans are used to circulate heated air and smoke, then heat circulation is improved, but the fans fail to resolve heat stratification when the oven is overloaded with food
Solution Approach 1:
The air mover creates dynamic turbulent flow that adapts to different loading conditions, using variable flow patterns and eddies to penetrate through food blocks and redistribute heat effectively whether the oven is lightly or heavily loaded
Solution Approach 2:
The system uses pneumatic principles to generate high-velocity air streams that impinge on the cooking chamber walls and create turbulent eddies, forcing heated air and smoke to circulate through and around food blocks that would otherwise block conventional fan airflow
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 system achieves more uniform heat distribution and reduces stratification, ensuring consistent cooking results even in vertically oriented ovens, especially when loaded with excess food, by circulating heated air and smoke effectively within the cooking chamber.
Implementation Method 1
The air mover is arranged to move air rearward in the cooking chamber to produce turbulent air flow in the cooking chamber and thereby a more uniform temperature and heat distribution in the cooking chamber
Implementation Method 2
A heating source is provided for heating air in the housing
Implementation Method 3
An air mover assembly is arranged in the housing to produce an air stream in the cooking chamber flowing across the cooking chamber and impinging on the wall creating a turbulent airflow in the cooking chamber
Data Source
AI summary
An oven for cooking food includes a housing having a front, a back, a top, a bottom, and a cooking chamber in the housing sized and shaped for receiving the food to be cooked. The cooking chamber has a front, a back, an upper portion, and a lower portion. A heating source heats air in the housing. An air mover is mounted generally at the front of the housing for moving heated air in the cooking chamber to produce a more uniform temperature and heat distribution in the cooking chamber.