This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Model for Predicting Residual Gas Fraction in Spark-Ignition Engines
Annotation ability available
Sector:
Language:
English
Abstract
A model for calculating the residual gas fraction in spark ignition engines has been formulated. The model accounts explicitly for the contribution due to the back flow of exhaust gas to the cylinder during the valve overlap period. The model has been calibrated with in-cylinder hydrocarbon measurements at different values of intake pressure, engine speed, and valve overlap timings.
Recommended Content
Authors
Topic
Citation
Fox, J., Cheng, W., and Heywood, J., "A Model for Predicting Residual Gas Fraction in Spark-Ignition Engines," SAE Technical Paper 931025, 1993, https://doi.org/10.4271/931025.Also In
References
- Asmus T. W. “Valve Events and Engine Operation” SAE Paper 820749 1982
- Siewert R. M. “How Individual Valve Timing Events Affect Exhaust Emissions” SAE Paper 710609 1971
- Benson J. D. Stebar R. F. “Effects of Charge Dilution on Nitric Oxide Emission from a Single-Cylinder Engine” SAE Paper 710008 1971
- Aiman W. R. “Engine Speed and Load Effects on Charge Dilution and Nitric Oxide Emission” SAE Paper 720256 1972
- Toda T. Nohira H. Kobashi K. “Evaluation of Burned Gas Ratio as a Predominant Factor to NO x .” SAE Paper 760765 1976
- Cheng C. O. Cheng W. K. Heywood J. B. Maroteaux D. Collings N. “Intake Port Phenomena in a Spark-Ignition Engine at Part Load SAE Paper 912401 1991
- Cheng W. K. Galliot F. Collings N. “On the Time Delay in Continuous In-Cylinder Sampling From IC Engines,” SAE Paper 890579 1989
- Galliot F. Cheng W. K. Cheng C. O. Sztenderowicz M. Heywood J. B. Collings N. “In-Cylinder Measurements of Residual Gas Concentration in a Spark-Ignition Engine,” SAE Paper 900485 1990
- Heywood J. B. Internal Combustion Engine Fundamentals McGraw-Hill Book Company New York 1988