Injection Gate Geometry for Fuel Atomization in Engine Throttle Bore
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Solution Overview
Problem
Existing fuel injection systems for internal combustion engines lack efficiency in atomizing secondary fuels, leading to suboptimal combustion efficiency and horsepower output, particularly in high-performance engines, and require modifications to existing engines for improved performance.
Innovation Solution
A modular atomized injection apparatus with a specific geometry of exit ports and passageways that optimize the relative spray angle between atomized and non-atomized fluids, allowing for high-pressure secondary fuel injection as a halo effect into the throttle bore, enhancing mixing and atomization of primary fuel and air.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional fuel injection systems are used, then the engine can operate with standard components, but the atomization of secondary fuels is inefficient leading to suboptimal combustion efficiency and horsepower output
Solution Approach 1:
The patent changes the geometric parameters of the injection system, specifically the spray angle and exit port configuration, to optimize atomization. The conical exit port with specific angle ranges (15-45 degrees) and the positioning of secondary fuel injection at optimized angles relative to primary fuel spray create improved mixing and atomization characteristics, directly resolving the atomization efficiency problem while maintaining standard engine operation
Solution Approach 2:
The patent introduces an intermediary mixing zone where primary and secondary fuels are combined before entering the combustion chamber. The throttled region and conical exit port act as intermediaries that facilitate thorough mixing and atomization of the two fuel streams, ensuring efficient combustion without requiring complete system redesign
2Productivity
If existing engines are modified for improved performance, then combustion efficiency can be enhanced, but major modifications are required which increase complexity and reduce adaptability
Solution Approach 1:
The patent segments the fuel injection system into distinct primary and secondary injection pathways with separate control mechanisms. The secondary fuel injection system is divided into multiple injectors positioned at different locations, each with independent passageways and exit ports. This segmentation allows for performance enhancement through adjustable secondary injection while keeping the primary injection system intact, reducing overall modification complexity
Solution Approach 2:
The patent designs the secondary fuel injection system with universal applicability to various engine types. The modular design with standardized components and adjustable geometry allows the same basic system to be adapted to different engine configurations without requiring complete redesign, thereby reducing complexity while maintaining adaptability across multiple applications
3Manufacturing precision
If high-pressure secondary fuel injection is used, then atomization and mixing are enhanced, but heat buildup increases which requires careful thermal management
Solution Approach 1:
The patent employs conical and curved geometries in the exit ports and passageways to optimize flow patterns. The conical exit port with gradual angle transitions and the curved paths of secondary fuel injection create smoother flow characteristics that enhance atomization uniformity while reducing turbulent heat generation compared to sharp-edged or linear configurations
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 apparatus significantly enhances engine performance by achieving uniform and efficient atomization of secondary fuels, increasing horsepower and reducing heat buildup, while being retrofittable and adaptable for various engine designs without major modifications.
Implementation Method 1
the high pressure jet of accelerant is emitted at 90 .degree. to the low pressure jet of air/fuel mixture, where mixing occurs as the combined streams are expressed into the engine's intake manifold
Implementation Method 2
The present invention utilizes an optimized relative spray angle between the atomized spray and a non-atomized spray for a resultant atomized admixture thereof
Data Source
AI summary
An injection gate is provided for high pressure, high velocity secondary fluid for admixture of an atomized spray thereof with another or primary fluid that atomizes the other fluid. The secondary fluid may be an accelerant and the primary fluid may be a low pressure fuel or fuel/air mixture in a fuel injection arrangement for an internal combustion engine. An injection plate assembly for an engine is interposed between the carburetor and the manifold), with an array of accelerant injection gates grouped with an array of fuel or fuel/air gates about an aperture coinciding with a throttle bore and evenly balancing the spray about the throttle bore, creating an atomized admixture of accelerant/fuel. The injection of accelerant is directed sharply downwardly toward the center of the bore and through the injected fuel stream, atomizing the fuel thereof for a high efficiency boost of horsepower.