Switchable Air Delivery System for Engine Protection
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Solution Overview
Problem
Extreme temperatures and environmental conditions can damage internal combustion engines when using ambient air for combustion, and ambient air sources can become impeded or clogged, necessitating a switch to a conditioned air source.
Innovation Solution
A system with first and second air cleaners in fluid communication, where the second air cleaner has a non-perforated cap with an inlet duct for conditioned air from the underhood area, and a conduit assembly with a valve to selectively deliver cleaned air from either source to the engine based on temperature measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If ambient air is used as combustion air source, then the system is simple and cost-effective, but the engine is damaged by extreme temperatures and environmental conditions
Solution Approach 1:
The air delivery system dynamically switches between ambient air source and underhood air source based on temperature conditions. A temperature sensor monitors ambient conditions and controls a valve assembly to select the appropriate air source, making the system adaptive rather than static.
Solution Approach 2:
The valve assembly acts as an intermediary mechanism that selectively directs air from either the ambient source or the underhood source to the engine. This intermediary component enables smooth transition between different air sources based on environmental conditions.
2Device complexity
If ambient air is used as combustion air source, then no additional air delivery infrastructure is needed, but the air source becomes impeded or clogged by environmental conditions
Solution Approach 1:
The system changes the source parameter of the air supply based on environmental conditions. When ambient air becomes impeded or clogged, the system switches to an alternative underhood air source, maintaining reliable air supply by changing the source parameter rather than relying on a single fixed source.
3Reliability
If a switchable air source system is implemented, then engine protection from extreme temperatures is improved, but the device complexity increases
Solution Approach 1:
The air delivery system is segmented into distinct components: an ambient air source, an underhood air source, and a valve assembly with temperature sensor. This segmentation allows each component to perform its specific function independently, making the overall complex system manageable and maintainable through modular design.
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
Ensures the delivery of suitable air to the engine, protecting it from extreme temperatures and environmental conditions by switching between ambient and conditioned air sources, improving engine performance and reliability.
Implementation Method 1
first and second air cleaners in fluid communication with first and second air sources
Data Source
AI summary
A system for delivering air to vehicle engines generally includes at least one air cleaner configurable to receive either conditioned air or unconditioned air and a conduit assembly coupled to the air cleaner for delivering cleaned air from the air cleaner to the vehicle engine.