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Unsteady Gas Flow Through Reed Valve Induction Systems
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English
Abstract
Previous publications from The Queen's University of Belfast have described the unsteady gas flow through a naturally aspirated two-cycle engine and the most recent of these have detailed the scavenge process, the combustion model and muffler design. It is thus now possible to predict the unsteady gas flow behaviour through and the performance and noise characteristics in this type of engine with a good degree of accuracy. This paper describes a mathematical model which has been formulated to simulate the action of the two-cycle engine fitted with a reed valve due to the unsteady gas dynamic behaviour in the inlet tract and makes comparisons with measurements. A complete simulation on the computer of a two-cycle engine fitted with a reed intake valve is thus now possible.
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Hinds, E. and Blair, G., "Unsteady Gas Flow Through Reed Valve Induction Systems," SAE Technical Paper 780766, 1978, https://doi.org/10.4271/780766.Also In
References
- Blair G. P. Cahoon W. L. “A More Complete Analysis of Unsteady Gas Flow through a High-Specific-Output Two-cycle Engine” S.A.E. Paper No. 720156 1972
- McConnell J. H. “Unsteady Gas Flow Through a Naturally Aspirated Four-Stroke Internal Combustion Engine” The Queen's University of Belfast March 1974
- Blair G. P. Ashe M. C. “The Unsteady Gas Exchange Characteristics of a Two-Cycle Engine” S.A.E. Paper No. 760644 1976
- Blair G. P. “Prediction of Two-Cycle Engine Performance Characteristics” S.A.E. Paper No. 760645 1976
- Blair G. P. “A Theoretical Examination of Relevant Parameters for Dynamic Testing of Two-Cycle Engine Mufflers” Environmental Protection Agency Conf. November 1977 Chicago
- Blair G. P. “Computer-Aided Design for Small Two-Stroke Cycle Engines for both Performance Characteristics and Noise Levels” I.Mech.E., A.D. Conf. June 1978 Isle of Man
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- Soedel W. Navas E. Padilla Kotalik B. D. “On Helmsholtz Resonator Effects in the Discharge System of a Two-Cylinder Compressor” J. of Sound and Vibration 30 263 277 1973
- MacLaren J. F. T. Kerr S. V. “Analysis of Valve Behaviour in Reciprocating Compressors” Proc. XII Int. Cong. Refrigeration. Paper 339 1967
- Krieger R. B. Booy R. R. Myres P. S. Oyehara O. A. “Simulation of a Crankcase Scavenged, Two-Stroke, S.I. Engine and Comparisons with Experimental Data” S.A.E. Paper No. 690135 1969