Oven insert
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Solution Overview
Problem
Conventional ovens, especially those on aircraft, face challenges in achieving a crispy outer surface and short cooking times due to low maximum temperature and slow airflow, often requiring excessive oil which is unhealthy.
Innovation Solution
An oven insert with movable deflectors that redirect air towards the food cooking volume, enhancing airflow and cooking efficiency, while minimizing oil usage by allowing oil to circulate and coat the food.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional ovens are used with limited maximum temperature, then safety regulations are met, but cooking time increases and crispy surface cannot be achieved
Solution Approach 1:
The patent employs movable deflectors that can change position dynamically during cooking. These deflectors redirect hot airflow patterns within the oven cavity, creating concentrated zones of high heat exposure on food surfaces. This dynamic airflow management allows the system to achieve crispy surfaces and reduce cooking time while maintaining lower overall temperature settings that comply with aircraft safety regulations.
2Productivity
If oil is used to reduce cooking time and produce crispy food, then cooking efficiency improves, but health harmful effects increase
Solution Approach 1:
The invention extracts the essential function of oil (heat transfer and surface crisping) from the cooking process by using enhanced airflow dynamics. The movable deflectors concentrate hot air directly onto food surfaces, creating a crisping effect without requiring oil coating. This removes the harmful element (excessive oil consumption) while preserving the beneficial outcome (crispy texture and reduced cooking time).
3Speed
If airflow speed is increased to reduce cooking time, then cooking efficiency improves, but energy consumption increases
Solution Approach 1:
The movable deflectors create localized zones of high-velocity airflow directly over the food surfaces rather than increasing overall oven airflow. This concentrates thermal energy where it is most needed for crisping and cooking, achieving the desired effect with minimal additional energy consumption. The deflectors essentially create efficient local heat transfer pathways without requiring system-wide energy increases.
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 insert accelerates cooking by improving air circulation and reducing oil consumption, resulting in crisper food with shorter cooking times and healthier oil usage.
Implementation Method 1
the plurality of deflectors are configured to deflect air towards the food cooking volume when the plurality of deflectors are in the second position during operation of the oven
Data Source
AI summary
An insert for an oven including a housing and a food cooking volume inside the housing. A plurality of deflectors are movably mounted on the housing. The plurality of deflectors are configured to be actuated from a first position to a second position. The plurality of deflectors are configured to deflect air towards the food cooking volume when the plurality of deflectors are in the second position during operation of the oven.