Double Burner Head Ignition Structure for Stable Inner Flame
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Solution Overview
Problem
Conventional burners for cooking appliances often face issues with inconsistent flame ignition and stability, particularly in double burner configurations, where the inner burner may struggle to maintain flame due to inefficient gas distribution and ignition mechanisms.
Innovation Solution
The burner design incorporates an outer burner head with a flame spread space and hole to direct flame into an inner burner head, which features an ignition hole positioned below the inner flame hole and a guiding rib to ensure stable gas flow and ignition, regardless of gas specific gravity, preventing flame extinction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a double burner configuration is used to improve cooking efficiency, then heat utilization is improved, but flame ignition stability deteriorates
Solution Approach 1:
The burner head is segmented into an inner burner head and an outer burner head, each with separate flame holes and ignition mechanisms. The outer burner head includes an outer flame hole and outer ignition hole, while the inner burner head includes an inner flame hole and inner ignition hole, allowing independent flame establishment and improving overall ignition reliability
Solution Approach 2:
A flame guide rib is introduced as an intermediary structure between the outer flame hole and inner flame hole. This rib guides the flame from the outer burner to the inner burner, ensuring stable flame propagation and preventing flame extinction in the inner burner head
2Productivity
If the inner burner head is positioned concentrically to improve heat distribution, then heat utilization is improved, but gas flow distribution deteriorates
Solution Approach 1:
The inner and outer burner heads are equipped with different numbers and arrangements of flame holes tailored to their respective positions. The outer burner head has flame holes arranged to distribute gas outward, while the inner burner head has flame holes configured for inward and upward distribution, optimizing gas flow patterns for each location
Solution Approach 2:
The flame guide rib extends in the vertical dimension from the outer burner head toward the inner burner head, creating a three-dimensional flame propagation path. This vertical extension ensures proper gas flow distribution and flame stabilization in the concentric configuration
3Device complexity
If conventional ignition mechanisms are used to simplify the structure, then device complexity is reduced, but ignition reliability deteriorates
Solution Approach 1:
The ignition system is segmented into separate ignition holes for the inner and outer burners, each positioned and sized appropriately for its specific combustion requirements. This segmentation allows each ignition point to be optimized independently while maintaining overall system simplicity
Solution Approach 2:
The flame guide rib structure enables the outer flame to automatically ignite the inner flame through controlled flame propagation. The geometry of the rib and positioning of the ignition holes create a self-sustaining ignition sequence without requiring complex external ignition control mechanisms
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 configuration ensures stable and efficient ignition of the mixture gas in the inner burner head, preventing flame failure and maintaining consistent cooking performance across various gas types.
Implementation Method 1
the outer burner head is provided with a flame spread space to spread flame into the inner burner head, and a flame spread hole to discharge the mixture gas into the flame spread space
Implementation Method 2
the ignition hole through which the mixture gas in the inner burner head is discharged to ignite the mixture gas by the flame that is spread by the flame spread space
Implementation Method 3
a rib to guide the mixture gas discharged from the ignition hole to flow downward is disposed on the inner burner head
Data Source
Figure 1
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Figure 3
AI summary
Provided is a burner (100). The burner (100) includes a burner body (200) receiving a gas and air, a burner head (300) seated on the burner body (200), the burner head (300) including an inner burner head (350) and an outer burner head (310), and a burner cap (500) seated on the burner body (200) to cover the burner head (300). An outer flame hole (311) through which a mixture gas is discharged and a flame spread space (312) for spreading flame into the inner burner head (350) are defined on the outer burner head (310), and an inner flame hole (351) through which the mixture gas is discharged and an ignition hole (352) defined under the inner flame hole (351) are defined on the inner burner head (350).