Gas Burner With Horizontal And Vertical Venturi Conduits
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing gas burners for cooking appliances fail to simultaneously meet requirements of small vertical height, insensitivity to pressure streaming effects, high power development, easy part replacement, dual and three-ring operation, and cost-effective assembly, often compromising on one or more of these aspects.
Innovation Solution
A gas burner design featuring a cup-shaped support with dual gas inlets, horizontal and vertical nozzles, and venturi conduits that allow for adjustable primary and secondary air intake, enabling efficient flame generation and operation as both dual and three-ring burner, while maintaining compact size and ease of maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If radial venturis are made to extend towards the burner interior to obtain a radial portion, then the burner shape is achieved, but the outer burner portion gets a non-annular shape with circular outer perimeter and elliptical inner perimeter, giving a strange shape and subtracting secondary air from the central inner part
Solution Approach 1:
The burner is divided into separate functional components: a cup-shaped support structure and a removable burner assembly. The venturi conduits are segmented into horizontal and vertical sections, each serving specific functions. This segmentation allows the horizontal venturis to extend properly for shape formation while the vertical section ensures adequate secondary air supply to the central burner, resolving the contradiction between shape requirements and flame performance.
Solution Approach 2:
A flame divider component is introduced as an intermediary element that distributes secondary air to both the central and outer burners. This mediator ensures that the central burner receives sufficient secondary air despite the radial extension of venturis, maintaining proper flame size and intensity while preserving the required burner shape.
2Volume of moving object
If the venturis are made of small radial extension, then the burner size is reduced, but the maximum power which the burner is able to develop is limited
Solution Approach 1:
The venturi conduits are configured with both horizontal and vertical sections. The horizontal section provides the necessary radial extension for proper burner shape, while the vertical section adds height dimension to maintain adequate venturi length for power development. This dimensional approach allows the burner to achieve both compact size and high power output.
3Ease of repair
If the burner is designed with multiple parts for easy assembly and cleaning, then accessibility for cleaning is improved, but the device complexity increases
Solution Approach 1:
The burner is segmented into a fixed cup-shaped support and a removable burner assembly containing all moving parts. This segmentation allows easy removal and cleaning of the burner assembly while keeping the support structure simple and integrated, balancing cleaning accessibility with device complexity.
Solution Approach 2:
The cup-shaped support structure serves multiple functions: it provides structural support, houses the venturi conduits, and acts as a removable assembly for easy cleaning. This multi-functionality reduces the need for additional components, maintaining simplicity while improving accessibility.
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 burner achieves high power output, remains insensitive to pressure streaming, and allows for easy part replacement and cleaning, effectively addressing the limitations of previous designs by ensuring consistent flame size and intensity across the cooking surface.
Implementation Method 1
two horizontal venturi conduits of horizontal axis extending from said back wall spaced apart and passing through substantially the entire cup-shaped support to open into an arcuate channel
Implementation Method 2
A gas burner design featuring a cup-shaped support with dual gas inlets, horizontal and vertical nozzles, and venturi conduits that allow for adjustable primary and secondary air intake, enabling efficient flame generation
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
An improved gas burner for cooking appliances, with an inner central portion (40) defining an inner chamber (52) provided with a central flame ring (72) and with an outer portion (42) concentric with said central portion (40) defining an outer chamber (47) provided with at least one outer flame ring (78), characterised by comprising a pair of first injectors (14) of substantially horizontal axis, symmetrically disposed about a diametrical vertical plane of said burner, said first injectors (14) being associated with respective adjacent venturi conduits (24) with substantially horizontal parallel axes, feeding said outer portion (42) with a gas/primary air mixture to generate said outer flame ring (78), said adjacent conduits (24) being spaced apart to define a space within which a second injector (16) of vertical axis is disposed facing a venturi conduit (50) of vertical axis feeding said inner central portion (40) with a gas/primary air mixture to generate said central flame ring (72).