Grill Metal Sheet Opening Design for Localized Temperature Control
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Solution Overview
Problem
Existing grills fail to achieve a higher temperature on one area of the grilling surface compared to another, despite having gas burners with different maximum heat outputs.
Innovation Solution
The grill design features larger openings above the second gas burner, creating a chimney effect that redirects hot gases from both burners, allowing the grilling surface above the second burner to be heated more extensively than the surface above the first burner, with the second total opening area being at least twice that of the first.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If metal sheets with openings are placed above gas burners to deflect hot gases and heat the grilling surface, then the grilling surface is heated by convection and thermal radiation, but the temperature distribution across different areas of the grilling surface remains uniform and cannot be differentiated
Solution Approach 1:
The patent applies local quality by creating different opening areas in metal sheets positioned above different gas burners. Specifically, the second metal sheet has a larger opening area than the first metal sheet, allowing the second gas burner to generate higher temperatures in its corresponding grilling zone. This enables different regions of the grilling surface to have different temperature characteristics, providing localized temperature control for various cooking requirements.
Solution Approach 2:
The patent changes the parameter of opening area in the metal sheets to control temperature distribution. By varying the opening area (first opening area versus second opening area where the second is larger), the system adjusts the heat output and temperature levels of different burners, enabling differentiated temperature zones on the grilling surface without requiring additional control mechanisms.
2Temperature
If gas burners with different maximum heat outputs are used to heat different areas of the grilling surface, then temperature differentiation is possible, but the hot gases from lower-power burners are not efficiently utilized
Solution Approach 1:
The patent merges the hot gas flows from multiple gas burners by positioning metal sheets with openings above each burner. The design allows hot gases from the first gas burner to flow upward through the first metal sheet's openings and simultaneously allows hot gases from the second gas burner to flow through the second metal sheet's larger openings. This combining of gas flows ensures that even the lower-power first burner's hot gases are effectively utilized and directed toward the grilling surface, improving overall energy efficiency.
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 achieves a locally higher temperature on the grilling surface above the second gas burner, enhancing heat distribution and ensuring the second gas burner's higher heat output effectively increases the temperature in that area.
Implementation Method 1
a kind of chimney effect is also generated, so that the hot gases generated by the at least one first gas burner initially flow below the at least a plate flow to the second gas burner and emerge there through the openings above the second gas burner
Implementation Method 2
The trays are also heated by the associated burner and emit thermal radiation, with which the food is heated
Implementation Method 3
The hot gases generated by the gas burners are also deflected by the metal sheets, so that the heating of the food to be grilled is influenced by convection
Data Source
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AI summary
The present invention relates to a grill comprising: - a cooking chamber (1), - at least one grilling surface (2) arranged in the cooking chamber (1), - at least one first gas burner (3) arranged below the grilling surface (2), - at least one second gas burner (4) arranged below the grilling surface (2), - at least one sheet (5.1, 5.2) arranged between the grilling surface (2) and a first gas burner (3), which may have openings (6) with a first total opening area above the first gas burner (3), - at least one sheet (7) arranged between the grilling surface (2) and a second gas burner (4), which has openings (8) with a second total opening area above the second gas burner (4), characterized in that the second total opening area of the sheet (7) above the second gas burner (4) is larger than the first total opening area of the sheet (5.1, 5.2) above the first gas burner (3).