Gas Burner Cover with Segmented Zones for Cooking Efficiency
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Solution Overview
Problem
Conventional gas burners, both radial and flat, suffer from inefficiencies due to heat loss and limited control ranges, with radial burners losing heat to the surroundings and flat burners facing challenges in ignition and stable flame patterns at high capacities, resulting in reduced cooking capacity and increased complexity when trying to enhance efficiency.
Innovation Solution
A gas burner design that divides burner ports into two independently controllable zones with shared gas feed means, allowing for a broader control range without the need for an auxiliary gas construction, using a single-part burner cover and optimizing port arrangement for efficient combustion and air flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If radial burners are used with high capacity to compensate for heat loss, then the burner capacity is increased, but heat loss to the surrounding area increases and efficiency decreases
Solution Approach 1:
The burner is divided into multiple independently controllable burner zones (first burner zone, second burner zone, etc.) with separate mixing chambers and burner port groups. This segmentation allows selective operation of different zones to match cooking requirements, avoiding the need to operate the entire burner at high capacity and thereby reducing unnecessary heat loss to the surroundings.
Solution Approach 2:
Different burner zones are designed with different characteristics (different numbers of burner ports, different mixing chamber configurations) to optimize performance for specific cooking tasks. This allows local optimization of heat output where needed while minimizing heat loss in areas where lower output suffices.
2Loss of energy
If flat burners are used with burner ports oriented upward, then heat efficiency is improved, but ignition and reignition become more difficult and stable flame pattern at high capacity is compromised
Solution Approach 1:
The burner is segmented into multiple zones with independent mixing chambers. Each mixing chamber can be optimized for its specific function: some zones are designed for reliable ignition and low-capacity operation, while others are designed for high-capacity stable combustion. This segmentation allows each zone to specialize in different operational requirements.
Solution Approach 2:
The gas feed means are configured to dynamically switch between different operating modes: supplying gas to individual burner zones separately for flexible control, or supplying gas to multiple zones simultaneously for high-capacity operation. This dynamic control enables the system to adapt to varying cooking requirements while maintaining optimal combustion characteristics in each zone.
3Adaptability or versatility
If multiple independent burners are used to increase cooking capacity, then the control range is broadened, but device complexity and component count increase
Solution Approach 1:
Multiple burner zones share common components including the burner cover, ignition system, and gas feed control means. The mixing chambers are integrated into a single burner head structure rather than being completely separate units. This merging approach provides the control range of multiple independent burners while significantly reducing overall component count and simplifying the device structure.
Solution Approach 2:
The gas feed means are designed with multi-functionality to control multiple burner zones through a single interface. The ignition system is positioned to serve multiple zones. This universal design allows one set of components to perform the functions that would otherwise require separate components for each burner, reducing complexity while maintaining versatility.
4Reliability
If conventional auxiliary gas construction is used in flat burners, then ignition and reignition are improved, but the construction becomes practically infeasible and control range is limited
Solution Approach 1:
Instead of using a complex auxiliary gas construction, the burner is divided into multiple zones where each zone has its own simplified mixing chamber and burner port group. This segmentation provides the reliability of multiple independent combustion zones without requiring the complex auxiliary gas distribution system that is practically infeasible in conventional flat burners.
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 design achieves a control range exceeding conventional radial burners, maintaining efficiency while reducing complexity and component count, with a control range of 1:15 and a combined maximum capacity of up to 5 kW, enhancing cooking capabilities and reducing harmful emissions.
Implementation Method 1
Gas is supplied to a first mixing chamber with a first group of burner ports and to a second mixing chamber with a second group of burner ports
Data Source
Figure 1~2
AI summary
A gas burner, for instance for a cooking device, comprises a burner housing (10) with a burner cover (20). The burner cover comprises separated group of burner ports (21, 22) which are supplied individually. A first group (21) of burner ports thus forms a first burner part with a first gas inlet (41). A second group (22) of burner ports provides a second burner part (22) with a second gas inlet (42).