1978-02-01

Simulation of Thermodynamic Cycle of Three-Valve Stratified Charge Engine 780319

This paper describes the development of a mathematical model for the compression, combustion, expansion, exhaust and intake processes of a three-valve stratified charge engine. After calculating the mixture formation at the end of compression process, a simple combustion model was developed to compute the gas temperature, gas pressure and the rate of formation of NO and CO at each crankangle, using basic energy and reaction kinetic equations for both the auxiliary and main chambers.
The evaluation of the model was carried out by comparing the computed and experimental data. A satisfactory correlation was observed between them.

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