Gas Range Burner Temperature Sensing for Automatic Fire Prevention
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Solution Overview
Problem
Current gas fueled range top burners lack a reliable solution for remotely sensing and controlling temperatures to prevent overheating and potential fires, as they require user attention to adjust heat settings, leading to accidents when unattended.
Innovation Solution
A temperature sensing device is integrated within the gas supply tubing at the burner head, sensing radiant heat from cooking utensils and reducing gas flow through the burner orifice if temperatures exceed a predetermined limit, using a bimetal disc or flexible membrane to restrict gas flow and maintain safe combustion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a temperature sensing device is integrated within the gas supply tubing at the burner head to remotely sense temperatures and reduce gas flow automatically, then cooking safety is improved and fire prevention is enhanced, but device complexity increases
Solution Approach 1:
A temperature sensing device is integrated within the gas supply tubing at the burner head to remotely sense temperatures and reduce gas flow automatically, preventing fires while maintaining simple operation
Solution Approach 2:
The temperature sensing device provides feedback on cooking surface temperature to automatically modulate gas flow, creating a closed-loop safety system that responds to actual cooking conditions without requiring user intervention
2Reliability
If electronic software based controls are used to provide programmed operating options and safety subroutines, then cooking safety and control precision are improved, but product cost increases substantially
Solution Approach 1:
The patent replaces complex electronic software controls with a simpler temperature sensing device integrated into the gas supply system, achieving safety through direct thermal-mechanical response rather than electronic processing
Solution Approach 2:
The invention uses a cost-effective temperature sensing mechanism integrated into the gas tubing rather than expensive electronic control systems, making safety accessible without substantial cost increases
3Ease of operation
If mechanical valves actuated by control knobs are used for burner control, then device simplicity and ease of operation are maintained, but automatic temperature control and fire prevention capabilities are lost
Solution Approach 1:
The temperature sensing device enables the burner system to self-regulate gas flow based on actual cooking surface temperature, providing automatic fire prevention while maintaining the simplicity of mechanical valve operation for the user
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 solution significantly reduces the likelihood of cooking fires by automatically adjusting gas flow to prevent overheating, while ensuring safe flame maintenance and operation, even when the user is not present.
Implementation Method 1
sensing radiant heat from cooking utensils
Implementation Method 2
using a bimetal disc or flexible membrane to restrict gas flow
Data Source
AI summary
A gas range has burner head which have temperature sensing devices as a portion of the burner heads. Upon reaching a predetermined temperature, the temperatures sensing devices reduces gas flow to a bypass amount until temperature drops below to at least the predetermined temperature. Lowering the temperature in a cooking utensil below a common ignition temperature, while still allowing boiling, is an objective of many embodiments.