Rotating Heat-Conducting Cone for Adjustable Grill Heat Flow
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Solution Overview
Problem
Conventional grilling devices with gas burners primarily produce top heat, leading to energy loss and food soiling due to frequent turning of food for even browning, and lack the ability to alternately supply more bottom heat.
Innovation Solution
A closable grilling device with a heat-conducting cone and an adjustable cone that allows for the redirection of heat to provide either top or bottom heat by rotating the adjustable cone relative to the heat-conducting cone, enabling flexible heat distribution without lifting the lid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a ring-shaped gas burner with a fixed heat-conducting cone is used, then the structure is simple, but the heat distribution cannot be adjusted between top heat and bottom heat
Solution Approach 1:
The heat-conducting cone is made rotatable around the central opening of the burner, transforming the static heat distribution into a dynamic system. By rotating the cone, users can adjust the orientation of its side walls to direct heat either upward (top heat) or downward (bottom heat), providing adaptability without complex mechanisms
Solution Approach 2:
The single heat-conducting cone structure serves multiple functions: it can direct heat upward for top-heat cooking, downward for bottom-heat cooking, and at intermediate angles for mixed heat distribution. This multi-functional design eliminates the need for separate burners or heating elements for different cooking modes
2Reliability
If the lid is frequently opened to turn food for even browning, then even cooking can be achieved, but energy is lost and food soiling increases
Solution Approach 1:
The rotatable heat-conducting cone enables dynamic adjustment of heat direction during cooking. Users can switch between top heat and bottom heat modes to achieve even browning on both sides of the food without opening the lid, maintaining energy efficiency while ensuring reliable even cooking
Solution Approach 2:
The system changes the spatial parameter of heat flow direction by rotating the cone. This parameter change allows the same heating system to produce different heat distribution patterns (top heat, bottom heat, or mixed), achieving even cooking while the lid remains closed to prevent energy loss
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 design allows for efficient heat distribution, reducing energy loss and food soiling by enabling adjustable heat supply, ensuring even cooking without constant turning of food, and maintaining a clean grilling environment.
Implementation Method 1
a heat-conducting cone which is held in the lower part above the gas burner
Implementation Method 2
the heat generated by a ring-shaped gas burner and whose inner diameter is larger than a central opening in a guide cone held in the lower part generates an approximately even heat distribution. The heat mainly flows around the guide cone and thus rises outside the wall of the guide cone and inside the wall of the lower part up to the lid
Data Source
Figure 1~3
Figure 4
Figure 5~8
AI summary
The invention relates to a grill apparatus (1), in the lower part (2) of which there is provided a heat conducting cone (4) which is held in a central position and in which an adjustment cone is rotatably mounted. Both cones (4, 7) have heat conducting means (10) in the form of openings (41, 71). By means of a relative rotation of the two cones (4, 7) with respect to one another, said openings go from congruently completely open to completely closed and are adjustable to any intermediate position, whereby a heat conduction with more top heat or more bottom heat can be directed onto the object being grilled.