Solid fuel burning appliance having an air intake control assembly and method for controlling an air intake into a combustion chamber of a solid fuel burning appliance
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Solution Overview
Problem
Solid fuel burning appliances face challenges in controlling air intake into combustion chambers, leading to inefficient combustion and the production of undesirable combustion by-products like soot and creosote, which affect heating efficiency and aesthetics.
Innovation Solution
An air intake control assembly with a shutter mechanism, temperature limit switch, and motor system that adjusts air intake based on temperature thresholds to optimize combustion efficiency and reduce by-product formation, featuring a mounting structure, shutter, power supply, and electric circuit to manage air flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If air intake is increased to improve combustion efficiency, then heating performance improves, but production of soot and creosote increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the air intake volume based on combustion chamber temperature. The system transitions from static air intake control to dynamic control, where the air supply parameter is modified in real-time according to temperature feedback, optimizing combustion efficiency while preventing harmful by-product formation.
Solution Approach 2:
The patent implements feedback control through temperature monitoring in the combustion chamber. The temperature sensor provides continuous feedback to the control system, which then adjusts the air intake shutter position accordingly. This closed-loop feedback mechanism ensures that air intake is optimized for combustion efficiency while preventing excessive air that would lead to soot and creosote production.
2Object-generated harmful factors
If air intake is decreased to reduce soot and creosote production, then combustion efficiency improves, but heating performance deteriorates
Solution Approach 1:
The system dynamically adjusts the air intake parameter based on real-time temperature conditions. During different combustion phases (ignition, steady combustion, burnout), the air intake volume is optimized to maintain high combustion efficiency while preventing harmful by-products. This resolves the contradiction by showing that proper parameter timing is more important than simply increasing or decreasing air intake.
Solution Approach 2:
The feedback mechanism monitors combustion chamber temperature and adjusts air intake accordingly. When temperature indicates efficient combustion, air intake is optimized; when temperature suggests incomplete combustion, air intake is adjusted to prevent soot formation. This feedback loop ensures both high heating performance and low harmful emissions are achieved simultaneously.
3Device complexity
If manual air intake control is used to simplify the system, then device complexity is reduced, but combustion efficiency and by-product control deteriorate
Solution Approach 1:
The system applies self-service by automatically controlling air intake based on temperature feedback without requiring manual intervention. The control assembly autonomously adjusts the shutter position according to combustion conditions, eliminating the need for user judgment and action while maintaining optimal combustion efficiency and minimizing harmful by-products.
Solution Approach 2:
The patent replaces manual mechanical control with an automated control system that uses temperature sensing and motorized shutter adjustment. This substitution of manual operation with an automated electromechanical system resolves the contradiction by demonstrating that increased automation complexity is justified by the significant improvement in combustion control and reduction of harmful emissions.
4Productivity
If automated temperature-based control is implemented to optimize combustion, then combustion efficiency improves, but device complexity increases
Solution Approach 1:
The automated control assembly serves itself by using temperature feedback to autonomously adjust air intake. The system requires no external control input and automatically optimizes combustion based on real-time conditions, achieving high combustion efficiency while the complexity is confined to a self-contained control module that manages itself.
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 effectively regulates air intake to enhance combustion efficiency, reduce soot and creosote production, and maintain a clean aesthetic by automatically adjusting air flow in response to temperature changes, thereby improving the overall performance of solid fuel burning appliances.
Implementation Method 1
a temperature limit switch electrically connected to the motor and the power supply and monitoring a temperature in proximity of the combustion chamber
Implementation Method 2
a motor operatively connected to the shutter to configure same when actuated
Implementation Method 3
combustion chamber of a solid fuel burning appliance
Data Source
AI summary
An air intake control assembly for adjusting an air intake into a combustion chamber of a solid fuel burning appliance is provided. The air intake control assembly comprises a mounting structure having at least one air intake opening, a shutter mounted to the mounting structure and configurable between an open configuration and an at least partially closed configuration, a power supply, a motor operatively connected to the shutter and activable to modify a configuration of the shutter with respect to the at least one air intake opening, a temperature sensor electrically connected to the motor and the power supply to monitor a temperature representative of a temperature of the combustion chamber; and an electric circuit connecting the motor to the power supply and being operatively connected the temperature sensor. A solid fuel burning appliance and a method for controlling an air intake into a combustion chamber of a solid fuel burning appliance are also provided.