Gas burner with multi-ring main flames
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Solution Overview
Problem
Traditional multiple flame ring gas burners face challenges such as laborious spot-facing operations for coupling components, constructional inaccuracies leading to poor ignition precision, limited flexibility to adapt to different market requirements, and increased complexity in producing a satisfactory seal within venturi conduits, resulting in inefficiencies and higher production costs.
Innovation Solution
The improved gas burner design consists of a burner body formed from two parts, an injector holder cup, and a cover element, with a simplified structure that reduces the number of surfaces requiring spot-facing and allows for precise positioning of the ignition spark-plug and thermocouple, enabling flexible air intake from above or below the cooking hob, easy injector replacement, and adjustable venturi conduits for adapting to different gases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional multiple flame ring burners use separate cup-shaped injector holders with circumferential flanges and multiple spot-faced surfaces for coupling components, then the burner can be fixed to the sheet metal of a cooking hob, but the laborious spot-facing operations increase production complexity and time
Solution Approach 1:
The patent merges the injector holder cup and cover element into a single integrated burner body component. This consolidation eliminates the need for separate spot-facing operations on multiple coupling surfaces between the injector holder and cover, directly reducing production complexity and time while maintaining the fixing function to the cooking hob sheet metal
2Reliability
If traditional burners have multiple separate spot-faced surfaces in each burner component to ensure coupling seals, then sealing is achieved, but the laboriousness of spot-facing operations is increased by the need to ensure perfect coplanarity between surfaces
Solution Approach 1:
By integrating the injector holder and cover element into one piece, the patent eliminates multiple separate spot-faced surfaces that required perfect coplanarity. The single integrated structure maintains sealing reliability through its designed coupling interfaces while dramatically reducing production complexity
3Reliability
If traditional burners have the spark plug electrode applied to the injector holder and the spark discharge surface on the flame divider or cover, then ignition is achieved, but constructional inaccuracies lead to poor ignition precision due to cumulative tolerances
Solution Approach 1:
The patent positions both the spark plug electrode and the spark discharge surface on the integrated burner body component. This merger eliminates the cumulative tolerances that occurred when these elements were on separate components (injector holder and flame divider/cover), thereby achieving precise spark gap control and reliable ignition
4Ease of operation
If traditional burners have separate injector holder and cover element that must be coupled together, then the burner can be assembled from separate parts, but the coupling requires considerable area of spot-faced surfaces for sealing within venturi conduits
Solution Approach 1:
By making the burner body a single integrated piece, the patent maintains assembly capability while eliminating the need for large spot-faced surfaces for sealing between separate components. The integrated structure inherently provides the necessary seals for venturi conduits without requiring extensive spot-facing operations
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 simplifies production, enhances operational reliability, reduces spark gap tolerances, increases flexibility, and allows for easy adaptation to various market requirements, while maintaining a compact size and efficient flame distribution.
Implementation Method 1
The burner body, which in certain cases is produced as a single piece with the injectors, comprises one or more venturi conduits, in which the gas is mixed with primary air entrained by the gas itself which leaves the injectors
Implementation Method 2
the ignition spark-plug, which is generally applied to the injector holder, and the burner surface, to which it discharges the spark
Data Source
AI summary
A gas burner with multiple rings of main flames includes an injector holder structure; a central distribution chamber within a central flame divider element that is rigid with the injector holder structure, generates a central ring of flames, and is closed by a circular cover; an annular distribution chamber having an annular flame divider element that is rested on the injector holder structure, generates at least one ring of main flames concentric with the central ring of flames, is separated from the central distribution chamber by an annular space, and is closed by an annular cover; and first and second venturi conduits that are substantially horizontal and parallel, are situated in the injector holder structure outline, and have inlet ends facing injectors associated with a wall of the injector holder structure and outer ends opening into cavities communicating with the central distribution chamber and with the annular distribution chamber.