Broil Burner Reflector Layout for Faster Central Oven Heating
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Solution Overview
Problem
Conventional broil burners in ovens generate heat that rises through natural convection, leading to inefficiencies in heating the central region of the oven cavity, prolonging the time needed to achieve elevated temperatures.
Innovation Solution
A broil burner with a generally-tubular gas conduit extending between the rearward and forward regions of the oven cavity, featuring a reflector that directs heat generated by combustion downward toward the central region, enhancing heat distribution and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional broil burners generate heat through natural convection, then the heating process is simple and requires no additional components, but the time needed to elevate temperature in the central region of the oven cavity is prolonged
Solution Approach 1:
The burner is segmented into multiple functional components: a gas conduit with multiple apertures for gas distribution, a reflector with specific geometric shaping to redirect heat, and a support structure. This segmentation allows each component to perform its specialized function, with the reflector specifically designed to redirect heat downward to reduce heating time in the central region.
Solution Approach 2:
The reflector introduces a new dimensional aspect to heat distribution by redirecting heat in a downward direction rather than allowing only upward natural convection. This dimensional change in heat flow direction enables faster heating of the central region by utilizing both upward and downward heat paths simultaneously.
2Productivity
If a reflector is added to redirect heat downward, then heating efficiency in the central region is improved, but the device complexity increases
Solution Approach 1:
The burner system is divided into distinct functional segments: the gas conduit for fuel delivery, the apertures for controlled gas release, and the reflector for heat redirection. This segmentation allows the reflector to be optimized specifically for heat redirection efficiency without compromising the gas delivery system, thereby improving overall heating efficiency while maintaining manageable complexity through functional specialization.
Solution Approach 2:
The reflector serves multiple functions simultaneously: it redirects heat downward to improve central region heating, it structures the flame pattern through its geometric design, and it provides a mounting structure for the gas conduit. This multi-functionality justifies the added complexity by delivering multiple benefits from a single component.
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 solution ensures faster and more efficient heating of the central oven region by reflecting heat downward, thereby reducing the time required to achieve elevated temperatures.
Implementation Method 1
A reflector provided to the broil burner extends between opposing segments of the gas conduit to reflect heat generated by combustion of the combustible gas in a downward direction
Implementation Method 2
a plurality of apertures through which the combustible gas exits the gas conduit to be combusted
Implementation Method 3
Combustion of this gas generated heat for cooking food within an oven cavity, but the heat generated by such conventional burners rises through natural convection
Data Source
AI summary
Provided is a broil burner including a generally-tubular gas conduit configured to extend between a rearward region of an oven cavity and a forward region of the oven cavity. The gas conduit includes an inlet that cooperates with a gas source to convey a combustible gas from the gas source to the gas conduit, and a plurality of apertures through which the combustible gas exits the gas conduit to be combusted. A reflector is provided, and extends between opposing segments of the gas conduit to reflect heat generated by combustion of the combustible gas in a downward direction, generally toward a central region of the oven cavity.