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Unsteady Flow in the Induction System of a Reciprocating Internal Combustion Engine
Annotation ability available
Sector:
Event:
Mid-Year Meeting
Language:
English
Abstract
Pressure-time variations are recorded in the intake pipe and crankcase of a motored, crankcase compression, piston ported, loop scavenged two stroke cycle engine over a range of engine speeds from 2000-7000 rpm, for several intake pipe lengths and different inlet port timings. These pressure-time histories are presented together with the results of theoretical calculations, which include unsteady flow in the induction tract.
Predicted delivery ratio trends are compared with measured values over the range of engine speeds and inlet tract lengths for different inlet port timings.
Authors
Citation
Blair, G. and Arbuckle, J., "Unsteady Flow in the Induction System of a Reciprocating Internal Combustion Engine," SAE Technical Paper 700443, 1970, https://doi.org/10.4271/700443.Also In
References
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- Nagao F. Shimamoto Y. “The Effect of Crankcase Volume and the Inlet System on the Delivery Ratio of Two-Stroke Cycle Engines.” SAE Transactions 76 paper 670030
- Benson R. S. Garg R. D. Woollatt D. “A Numerical Solution of Unsteady Flow Problems.” Int. J. Mech. Eng. Sci. 6 1964 117 144
- Blair G. P. Goulburn J. R. “The Pressure-Time History in the Exhaust System of a High-Speed Reciprocating Internal Combustion Engine.” SAE Transactions 77 paper 670477
- Blair G. P. Goulburn J. R. “An Unsteady Flow Analysis of Exhaust Systems for Multi-Cylinder Automobile Engines,” Paper 690469 SAE Mid-Year Meeting Chicago May 1969
- Blari G. P. Johnston M. B. “Unsteady Flow Effects in Exhaust Systems of Naturally Aspirated, Crankcase Compression Two-Cycle Internal Combustion Engines.” SAE Transactions 77 1968 paper 680594
- Blair G. P. Johnston M. B. “Simplified Design Criteria for Expansion Chambers for Two Cycle Gasoline Engines.” Paper presented SAE Automotive Engineering Congress Detroit January 1970
- Wallace F. J. Nassif M. H “Air flow in a Naturally Aspirated Two-Stroke Engine.” Proc. I.M.E. 168 1954 515
- Wallace F. J. Langell P. V. “Theoretical and Experimental Analysis of Air and Gas Flows in a Crankcase Scavenged Two-Stroke Engine Employing Boost Ports.” Paper 690134 SAE Automotive Engineering Congress Detroit January 1969
- Bannister F. K. “Pressure waves in Gases in Pipes.” Akroyd Stuart Memorial Lectures 1958
- Komotori K. Watanabe E. “A Study of the Delivery Ratio Characteristics of Crankcase Scavenged Two-Stroke Cycle Engines.” Paper 690136 SAE Automotive Engineering Congress Detroit January 1970
- Hayashi Y. Meyer W. E. “An Analytical Method for Optimizing the Scavenging Process of Uniflow Two-Cycle Diesel Engines.” SAE Transactions 74 1966 paper 650447