Burning Device Air Amplifier Using Side Channels for Increased Airflow
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Solution Overview
Problem
Current burning devices lack an air amplifier, resulting in insufficient airflow and wind output, which is not adequately addressed by existing solutions.
Innovation Solution
A burning device with an air amplifier featuring a fuel channel and side channels that passively introduce external air, increasing airflow by mixing it with fuel gas and creating a turbulent current for enhanced output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If only fuel container pressure is used to blow hot wind outward, then the device structure remains simple, but the airflow amount becomes insufficient
Solution Approach 1:
The patent introduces an air amplifier as an intermediary device between the fuel container and the external environment. The air amplifier includes a fuel channel and multiple side channels that work together to amplify the airflow. The fuel channel receives pressurized fuel gas and directs it through side channels that draw in ambient air, creating a mixed airflow that is expelled with greater volume and velocity than the original fuel gas flow alone.
Solution Approach 2:
The patent utilizes pneumatic principles by employing pressurized fuel gas as a driving fluid to power the air amplifier system. The high-pressure fuel gas flows through the fuel channel and into the side channels, where it creates a suction effect that draws ambient air into the system. The mixed气流 is then expelled through the outlet, leveraging pneumatic pressure differentials to achieve amplified airflow without mechanical moving parts.
2Quantity of substance
If existing air amplifier designs are used, then airflow amount increases, but the wind output remains insufficient
Solution Approach 1:
The patent divides the air amplifier into distinct functional segments: a fuel channel for high-pressure fuel gas flow, multiple side channels for ambient air intake, and an outlet for mixed气流 expulsion. Each side channel is positioned at different locations and angles to optimize air intake. This segmentation allows independent optimization of fuel gas delivery and ambient air suction, enabling both increased airflow volume and maintained ejection velocity.
Solution Approach 2:
The side channels are designed with asymmetric positioning and orientations relative to the fuel channel. The side channels are arranged at different angles and locations to create optimal turbulence and mixing patterns. This asymmetric configuration ensures that ambient air is drawn in from multiple directions and mixes effectively with the fuel gas stream, maintaining high velocity while increasing total airflow volume.
3Stability of the object's composition
If fuel gas and air are simply mixed, then the mixture may be non-uniform, but the blowing distance decreases
Solution Approach 1:
The patent creates controlled turbulence through the asymmetric arrangement of side channels and their interaction with the fuel gas flow. This turbulence acts as a mixing mechanism that rapidly homogenizes the fuel gas and ambient air mixture. The chaotic flow patterns generated by the side channel configurations ensure thorough mixing, creating a uniform composition that maintains stability over longer distances during expulsion.
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 device achieves a significant increase in airflow and wind output, producing a more uniform mixture of fuel gas and air, thereby improving the blowing distance and efficiency of the hot wind.
Implementation Method 1
A portion of the lining corresponding to the through-hole converges, such that a sealed space formed between the sleeve and the lining intercommunicates with the through-hole for receiving external compressed air. A gap is formed between an inlet end of the lining and the sleeve and intercommunicates with the sealed space. The gap intercommunicates with an air passage in the lining. An inner wall of the inlet end is rounded, such that the air entered via the through-hole, the sealed space, and the gap creates the Coanda effect at the rounded inner wall.
Implementation Method 2
The fuel gas mixes with air and is then ignited to form a jet flame or a hot wind.
Data Source
AI summary
A burning device includes a body and an air amplifier mounted in the body. The air amplifier includes a fuel channel between an inlet and an outlet of the air amplifier. The fuel channel includes an intermediate section between an inlet section and an outlet section. A width of the inlet section gradually decreases from the inlet towards the intermediate section. A width of the outlet section gradually increases from the intermediate section towards the outlet. A width of the intermediate section is smaller than the width of the inlet section and the width of the outlet section. The air amplifier includes a plurality of side channels. Each side channel extends along an extending axis not intersecting with a longitudinal axis of the fuel gas channel and includes an inner end intercommunicating with the fuel channel and an outer end intercommunicating with an outer periphery of the air amplifier.