Gas Burner Boost Mode Using Single Automatic Valve for Power Control

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing gas cooking appliances lack convenient operational modes to efficiently speed up cooking processes, particularly at varying altitudes and in professional settings.

Innovation Solution

A method and design for a gas burner with a single automatic gas valve and a single gas supply line, allowing for ordinary and boost operational modes by controlling gas flow through electronic means, enabling increased power levels without complex constructional changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If a gas burner is equipped with multiple gas valves and complex gas supply lines to enable boost mode, then the power output and cooking speed are improved, but the device complexity and constructional complexity increase

Engineering Contradiction:
Improvepower outputVSAvoidconstructional complexity
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

The patent applies dynamics by making the single gas valve adjustable between different opening states (partial opening for ordinary mode, full opening for boost mode). This dynamic adjustment of the valve opening state allows the gas flow rate to be varied, enabling the gas burner to operate in both ordinary and boost modes using a single valve rather than multiple fixed valves, thereby reducing constructional complexity while maintaining power output flexibility.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The single gas valve is designed to perform multiple functions: it controls gas flow for both ordinary operational modes (partial opening) and boost operational mode (full opening). This multi-functionality eliminates the need for separate valves for different power levels, simplifying the device structure while maintaining the capability to provide enhanced power output when needed.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Productivity

If the gas valve is fully opened to achieve maximum power output in boost mode, then the cooking speed is improved, but the risk of thermal overload and safety issues increases

Engineering Contradiction:
Improvecooking speedVSAvoidthermal overload risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system dynamically adjusts the valve opening state based on operational mode requirements. During boost mode, the valve is fully opened to maximize gas flow and cooking speed. The electronic control unit monitors and manages the transition between modes, ensuring that full power is only applied when intended, thereby managing thermal overload risk through controlled dynamic operation rather than permanent maximum capacity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The electronic control unit provides feedback control by monitoring the operational state and adjusting the valve position accordingly. The system can detect when boost mode is activated and appropriately control the valve to full opening, while in ordinary modes it maintains partial opening. This feedback mechanism ensures that maximum power output is only achieved when explicitly required, managing safety by preventing unintended thermal overload.

Inventive Principle:
Principle #23Feedback

3Device complexity

If a single gas valve is used to control all operational modes including boost mode, then the device complexity is reduced, but the precision of gas flow control for different power levels may be compromised

Engineering Contradiction:
Improvecontrol complexityVSAvoidgas flow control precision
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The single gas valve is designed with dynamic adjustment capability, allowing it to be positioned at different opening states to achieve precise gas flow control. The valve can be partially opened for ordinary modes and fully opened for boost mode, providing sufficient precision for different power levels while maintaining simple device architecture. The electronic actuator enables precise positioning of the valve at different opening states.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the opening state parameter of the single gas valve to achieve different gas flow rates. By adjusting the valve opening from partial to full position, the gas flow rate is precisely controlled for different operational modes. This parameter change approach allows a single valve to replace multiple valves while maintaining the necessary control precision through electronic actuation and positioning.

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 solution allows for a simple implementation of a boost mode that speeds up cooking processes by temporarily increasing power output, reducing control complexity and preventing thermal overload, while maintaining safety and efficiency.

Implementation Method 1

a single automatic gas valve installed in the gas supply line upstream the gas injector so as to control gas supply to the gas injector

Methodology Applied
Scientific EffectGas flow control: Valve

Implementation Method 2

gas released by the gas injector at the burner is ignited, which results in a flame suitable for heating cookware

Methodology Applied
Scientific EffectCombustion: Combustion

Data Source

PatentEP2775205B1Method of operating a gas burner of a gas cooking appliance with a boost function, and corresponding gas burner and gas cooking appliance
Publication Date: 2017.08.16 ELECTROLUX APPLIANCES
  • EP2775205B1 patent drawingFigure 1
  • EP2775205B1 patent drawingFigure 2
  • EP2775205B1 patent drawingFigure 3

AI summary

The present application in particular is directed to a mthod of operating a gas burner which comprises a gas injector, a gas supply line connected to the gas injector so as to feed gas to the gas injector, and a single automatic gas valve installed in the gas supply line upstream the gas injector so as to control gas supply to the gas injector. During ordinary operational modes (T1, T3), the single automatic gas valve always is in an opening status not exceeding a preset upper opening limit (L9), wherein during temporary boost operational modes (T2) the automatic gas valve is in an opened state (LB) exceeding the upper opening limit (L9).