Burner cap

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Solution Overview

Problem

Existing gas range burner caps with a single row of fire holes suffer from unstable flame flicker, low combustion efficiency, incomplete combustion, and CO emissions, leading to environmental pollution.

Innovation Solution

A burner cap design featuring double rows of main fire holes with an annular groove and fire holding channels, where the fire holding channels are interleaved with the first main fire holes and slope towards the second main fire holes, creating a stable flame holding effect by diverting gas flow and forming a ring of flame.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single row of main fire holes is used on the annular outer side wall, then the structure is simple, but the flame is easy to flicker and combustion area is unsteady

Engineering Contradiction:
Improvestructure simplicityVSAvoidflame stability
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The single row of fire holes is segmented into two rows with different orientations. The first row of fire holes is arranged in a first direction while the second row is arranged in a second direction different from the first direction. This segmentation allows each row to stabilize flames in different orientations, preventing overall flame flicker while maintaining structural feasibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fire holes are arranged in two different directional dimensions rather than a single linear dimension. By configuring fire holes in two rows with different arrangement directions, the system creates multi-dimensional flame stabilization, where flames from different rows intersect and support each other, preventing flicker in multiple directions simultaneously.

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

2Device complexity

If a single row of main fire holes is used, then the structure is simple, but the combustion thermal efficiency is low and incomplete combustion occurs

Engineering Contradiction:
Improvestructure simplicityVSAvoidcombustion thermal efficiency
Core Design Contradiction:
Device complexityVSLoss of energy

Solution Approach 1:

The combustion system is segmented into two rows of fire holes with different orientations, increasing the total combustion surface area. This segmentation allows more complete utilization of gas flow for combustion, improving thermal efficiency and reducing incomplete combustion losses while keeping the overall structure relatively simple.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

By arranging fire holes in two different directional dimensions, the system expands the combustion interface in multiple directions. This multi-dimensional arrangement increases the effective combustion area and improves gas utilization, leading to higher thermal efficiency and reduced energy loss from incomplete combustion.

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

3Loss of energy

If double rows of outer fire holes are arranged with staggered first and second fire holes, then the combustion efficiency is improved, but the flame from the second outer fire holes is easily lifted

Engineering Contradiction:
Improvecombustion efficiencyVSAvoidflame stability
Core Design Contradiction:
Loss of energyVSStability of the object's composition

Solution Approach 1:

The two rows of fire holes are configured with asymmetric properties: different arrangement directions and different tilt angles relative to the vertical direction. The first row has a first tilt angle while the second row has a second tilt angle different from the first. This asymmetric configuration creates complementary flame dynamics where flames from different rows interact to stabilize each other, preventing flame lifting while maintaining high combustion efficiency.

Inventive Principle:
Principle #4Asymmetry

Solution Approach 2:

The system utilizes parameter changes by varying the tilt angles of different fire hole rows. By adjusting the tilt angles of the first and second rows to different values, the flame trajectories from each row are optimized to intersect and support each other, creating a stable combustion pattern that prevents flame lifting while maximizing combustion efficiency.

Inventive Principle:
Principle #35Parameter changes

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 significantly improves combustion efficiency and flame stability, reducing CO emissions and environmental pollution by ensuring steady gas burn and effective flame holding.

Implementation Method 1

the outflow of gas can be diverted from the first main fire holes to slow down the outflow velocity of gas from the first main fire port and make the gas burn steadily without flame lifting

Methodology Applied
Scientific EffectGas flow diversion:

Implementation Method 2

the fire holding channels in the grooves below the first main fire holes will be connected to form a ring of flame to hold the flame from the second main fire holes in the lower row

Methodology Applied
Scientific EffectFlame holding:

Implementation Method 3

the combustion efficiency of the gas range is effectively improved

Methodology Applied
Scientific EffectCombustion: Combustion

Data Source

PatentUS11204172B2Burner cap
Publication Date: 2021.12.21 NINGBO FOTILE KITCHEN WARE CO LTD
  • US11204172B2 patent drawing
  • US11204172B2 patent drawing
  • US11204172B2 patent drawing

AI summary

The present invention discloses a burner cap. The burner cap comprises a main body (1) with an annular wall (10), a plurality of first main fire holes (11) is defined on the upper layer, and a plurality of second main fire holes (12) is defined on the lower layer; the annular wall (10) has an annular groove (2), and the annular wall (10) also has a fire holding channel (21), which connects to the annular groove (2) and connects to the first main fire holes (11), and/or the second main fire holes (12). So that the burner cap can significantly improve the combustion efficiency of the gas range while holding the flame from the first and second main fire holes.