Air Cooling Chamber Assembly for Internal Combustion Engine
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Solution Overview
Problem
Internal combustion engines face reduced fuel efficiency due to the increase in temperature of pressurized air, which decreases the density of charge air, thereby affecting the performance of turbochargers intended to improve fuel consumption rates.
Innovation Solution
An air cooling chamber assembly comprising an air intake duct, an air cooling chamber with an evaporator, and an air output duct, which cools ambient air before it enters the engine, using thermal shield materials to maintain low temperatures and increase oxygen molecules in the cooled air, thereby enhancing fuel efficiency and reducing greenhouse gas emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If turbocharger compresses intake air to increase density, then mass of air entering cylinders increases, but temperature of charge air rises to 150°C which reduces density
Solution Approach 1:
The air cooling chamber assembly is positioned in the air intake duct before the turbocharger compressor outlet, cooling the compressed air before it enters the engine cylinders. This preliminary cooling action reduces the temperature of charge air from 150°C to a lower temperature, thereby increasing air density and oxygen content before combustion, which resolves the contradiction by maintaining high mass of air while reducing temperature.
2Use of energy by moving object
If charge air temperature is reduced to maintain density, then fuel efficiency improves, but additional cooling components increase device complexity
Solution Approach 1:
The air cooling chamber assembly utilizes the existing air intake duct system of the engine, integrating the cooling function into the existing air delivery pathway. The cooling chamber is positioned within the air intake duct and uses the natural flow of compressed air through the duct, eliminating the need for separate cooling fans or additional power-consuming components. This multi-functional integration resolves the contradiction by improving fuel efficiency through cooling while minimizing increases in device complexity.
3Quantity of substance
If air cooling chamber assembly is added to cool charge air, then oxygen molecules increase and fuel efficiency improves, but the assembly occupies space in the engine compartment
Solution Approach 1:
The air cooling chamber assembly is nested within the existing air intake duct structure of the engine. The cooling chamber is positioned inside the air delivery duct, utilizing the existing duct volume rather than occupying additional engine compartment space. This nesting approach allows the cooling function to be integrated into the existing air delivery pathway, increasing oxygen molecules and improving fuel efficiency while minimizing the volume occupied in the engine compartment.
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 air cooling chamber assembly increases the density of cooled air, leading to improved fuel efficiency and reduced greenhouse gas emissions by increasing the amount of oxygen molecules, with laboratory and road tests showing significant fuel savings and emission reductions.
Implementation Method 1
The evaporator includes: an array of fins and a gaseous refrigerant tube... The evaporator cools the ambient air passing through the air cooling chamber to generate the cooled air
Implementation Method 2
The air output duct is shielded by one or more thermal shield materials to maintain low temperature of the cooled air in an engine compartment of the internal combustion engine
Data Source
AI summary
Present disclosure relates to air cooling chamber assembly. The air cooling chamber assembly includes: an air intake duct receiving ambient air outside of an internal combustion engine, an air cooling chamber cooling the ambient air received from the air intake duct to generate cooled air, and an air output duct providing the cooled air generated from the air cooling chamber to the internal combustion engine. The air cooling chamber assembly is connected to engine air intake of the internal combustion engine to cool the ambient air to generate the cooled air prior to entering the internal combustion engine, and to provide the cooled air generated to engine air intake of the internal combustion engine. The cooled air from air cooling chamber contains increased amount of oxygen molecules, and increased amount of oxygen molecules in the cooled air improves fuel efficiency and reduces greenhouse gas emission of the internal combustion engine.