Gas Burner Curved Flow Path for Thorough Mixing Without Obstruction

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Solution Overview

Problem

Existing gas stoves suffer from pipeline obstruction due to bending in the gas pipeline, leading to blocked gas paths and inefficient mixing of gaseous fuel and air.

Innovation Solution

The gas burner design includes separate gas mixing and flow guide cavities with curved transitions between them, ensuring a longer path length for gas mixing and preventing accumulation at connections, while maintaining a compact structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If the gas pipeline is extended to achieve more thorough mixing of gaseous fuel and air, then the mixing effect is improved, but the gas path may be blocked at bent positions, resulting in obstruction of the gas pipeline

Engineering Contradiction:
Improvemixing thoroughnessVSAvoidgas path obstruction
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent applies curved transition connections instead of sharp bends in the gas pipeline. The curved transitions between the gas mixing cavity, flow guide cavity, and gas supply cavity eliminate dead zones where gas could accumulate and block flow, while still providing sufficient path length for thorough mixing of fuel and air.

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The gas mixing system is divided into separate cavities (gas mixing cavity, flow guide cavity, gas supply cavity) with distinct functions. This segmentation allows each cavity to be optimized for its specific purpose while maintaining overall system efficiency and preventing obstruction through proper flow guidance.

Inventive Principle:
Principle #1Segmentation

2Quantity of substance

If the path length of gas is increased to improve mixing, then the mixing effect is enhanced, but the burner body length becomes excessively long, making mounting and placement difficult

Engineering Contradiction:
Improvemixing thoroughnessVSAvoidburner body length
Core Design Contradiction:
Quantity of substanceVSLength of moving object

Solution Approach 1:

The patent utilizes three-dimensional spatial arrangement of the cavities, positioning them at different locations and orientations within the burner body. This dimensional optimization allows the gas to traverse a sufficiently long path for thorough mixing while keeping the overall burner body dimensions compact and suitable for mounting.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The flow guide cavity and gas supply cavity are arranged in a nested or closely integrated configuration, where the end of the flow guide cavity bends toward the gas supply cavity. This nesting reduces the overall length required while maintaining the necessary flow path for effective mixing.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 ensures thorough mixing of fuel and air, stabilizes the flame, and prevents pipeline obstruction, allowing for efficient and stable operation without excessive lengthening the burner body.

Implementation Method 1

Based on the curved transition connection between the first ejection cavity and the gas mixing cavity as well as the curved transition connection between the gas mixing cavity and the gas supply cavity, after the gas reaches a connection between the first ejection cavity and the gas mixing cavity as well as a connection between the gas mixing cavity and the gas supply cavity, the mixed gas may be guided through the transition connection to enter the first ejection cavity and the gas mixing cavity to prevent the mixed gas from being stuck and accumulated at the above-mentioned connections

Methodology Applied
Scientific EffectFluid flow guidance:

Implementation Method 2

a path length of gas reaching the gas supply cavity is increased. As a result, the mixed gas is fully mixed during movement

Methodology Applied
Scientific EffectDiffusion mixing: Diffusion

Data Source

PatentEP4317782B1Gas burner and gas stove
Publication Date: 2025.12.17 WUHU MIDEA SMART KITCHEN APPLIANCE MFG CO LTD
  • EP4317782B1 patent drawingFigure 1~2
  • EP4317782B1 patent drawingFigure 3~4
  • EP4317782B1 patent drawingFigure 5~6

AI summary

Disclosed in present disclosure is a gas burner. The gas burner comprises a burner body (100), wherein the burner body (100) is internally provided with a gas mixing cavity (110), a first ejection cavity (120), a flow guide cavity (130) and a gas supply cavity (140); the burner body (100) is provided with a gas inlet (111) and a first air inlet (112), which are in communication with the gas mixing cavity (110); the gas mixing cavity (110) and the flow guide cavity (130) are respectively provided at two sides of the gas supply cavity (140), and the flow guide cavity (130) is in communication with the gas supply cavity (140); two ends of the first ejection cavity (120) are respectively in communication with the gas mixing cavity (110) and the gas supply cavity (140); the first ejection cavity (120) is in curved transition connection with the flow guide cavity (130); and the flow guide cavity (130) is also in curved transition connection with the gas supply cavity (140). By means of the arrangement of the curved transition, mixed gases can be guided into the flow guide cavity (130) and the gas supply cavity (140), such that a gas path inside the gas burner is unobstructed.