Technical Paper
Optimized Air Intake Systems
1995-05-01
951264
A calculation method has been developed to analyze and to optimize both the acoustic and performance aspects of air intake systems for internal combustion engines. The method integrates an acoustic linear one-dimensional computer code (SISASP) together with an acoustic linear three-dimensional computer code (SYSNOISE) and a one-dimensional thermodynamics analysis code (MARKPLUS XIV). The method enables the design of complete intake systems, integrating the acoustic and performance aspects and allows the designer to optimize the design to achieve legal, subjective comfort and engine performance targets. The results obtained from system simulations carried out in this way have been validated on a four cylinder gasoline engine and are illustrated here. The method can be used as part of the overall integrated design of an engine and also as a tool for intake system optimization.