Swirl Combustion Air Fuel Torch Bore Ratio Optimization
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Solution Overview
Problem
Gas torches face challenges in achieving a stable and optimal fuel/air mixture due to varying fuel types and densities, leading to inconsistent flame performance.
Innovation Solution
A torch design featuring a torch body with a mixture cavity and conical bores, a tip orifice structure with a specific bore diameter ratio to the tube's inner diameter, and a swirl insert to ensure efficient mixing and combustion, optimized for acetylene and propane/propylene fuels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional torch designs are used with varying fuel types and densities, then the torch can accommodate different fuels, but the fuel/air mixture becomes inconsistent and flame stability deteriorates
Solution Approach 1:
The patent applies parameter changes by optimizing the bore diameter ratio between the tip orifice and tube to specific ranges (5-7% for acetylene, 2-3% for propane/propylene). These parameter adjustments ensure consistent fuel/air mixture ratios across different fuel types, resolving the contradiction between fuel versatility and flame stability by tailoring geometric parameters to each fuel's characteristics
Solution Approach 2:
The patent implements local quality by providing different bore diameter ratios for different fuel types within the same torch design. The tip orifice structure has specially optimized local dimensions (bore diameter) that are tailored to specific fuel properties, allowing each fuel type to receive appropriately optimized flow characteristics while maintaining overall torch versatility
2Reliability
If the bore diameter ratio is optimized for specific fuel types, then flame stability improves, but the torch design becomes more complex with fuel-specific configurations
Solution Approach 1:
The patent achieves universality by designing a single torch body structure that can accommodate multiple fuel types through interchangeable or adjustable tip orifice components. The basic torch design remains universal, while only the tip orifice parameters need to be adjusted for different fuels, maintaining design simplicity while achieving fuel-specific optimization
3Productivity
If conventional mixing structures are used, then the device complexity remains low, but the mixing efficiency and combustion performance are insufficient
Solution Approach 1:
The patent applies segmentation by dividing the mixing process into distinct functional zones: the tip orifice for fuel delivery, the mixture cavity for air-fuel mixing, and the tube for directed flow. The conical bores are segmented to provide controlled air intake at specific locations, improving mixing efficiency through structured zonation rather than a single complex mixing chamber
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 achieves improved flame stability and optimal flow rates, providing a consistent and efficient mixture of air and fuel for acetylene and propane/propylene torches, with flow rates ranging from 2 to 30 SCFH and 2 to 12 SCFH respectively, at specific pressure conditions.
Implementation Method 1
The mixture cavity has a plurality of conical bores through a sidewall of the mixture cavity to permit a flow of air into the mixture cavity
Implementation Method 2
The bore has a first diameter and the bore directs a fuel to the mixture cavity. The ratio of the first diameter to the inner diameter of the tube is in the range of 5 to 7% for acetylene torches and 2 to 3% for propane and propylene torches
Implementation Method 3
The tube delivers the flow to a flame and the ratio of the first diameter to the inner diameter of the tube is in the range of 5 to 7% for acetylene torches and 2 to 3% for propane and propylene torches
Data Source
AI summary
A torch is provided having a tube having an inside diameter, a body and an orifice tip having a bore, where the diameter of the bore of the orifice tip and the inside diameter of the tube have a particular ratio based upon the type of fuel used for the operation.