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Simplified Design Criteria for Expansion Chambers for Two-Cycle Gasoline Engines
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English
Abstract
Pressure-time diagrams taken near the exhaust port of a 2-cycle engine provide valuable insight into the performance of the power unit. The optimum phasing of the scavenging and plugging pulses are then observable from these diagrams. Unsteady flow gas dynamic theory, with the arithmetic handled by a digital computer, will predict the phasing and amplitude of these important exhaust pulse reflections at any engine speed, in any exhaust system, for any engine. Design of such an exhaust system for a projected engine unit or an existing design becomes a real possibility, thus saving valuable development time and money.
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Citation
Blair, G. and Johnston, M., "Simplified Design Criteria for Expansion Chambers for Two-Cycle Gasoline Engines," SAE Technical Paper 700123, 1970, https://doi.org/10.4271/700123.Also In
References
- Blair G. P. Johnston M. B. “Unsteady Flow Effects in Exhaust Systems of Naturally Aspirated, Crankcase Compression Two-Cycle Internal Combustion Engines.” Paper 680594 SAE FCIM Powerplant & Transportation Meeting Milwaukee September 1968
- Blair G. P. Goulburn J. R. “The Pressure-Time History in the Exhaust System of a High-Speed Reciprocating Internal Combustion Engine.” SAE Transactions 76 1968
- Blair G. P. “A Direct Evaluation of the Exhaust Lead of a Two-Stroke Cycle Diesel Engine.” SAE Transactions 74 1966
- Nakajima K. Shenoda K. Onoda K. “Experiments on Effects of Atmospheric Conditions on the Performance of an Automotive Gasoline Engine.” Paper 690166 SAE Automotives and Engineering Congress Detroit January 1969
- Wallace F. J. Boxer G. “Wave Action in Diffusers for Exhaust Pipe Systems, with Special Reference to The Scavenging of Two-Stroke Engines.” Proc. I.M.E. 170 39 1956 1131
- Naito H. Taguchi M. “Some Development Aspects of Two-Stroke Cycle Motorcycle Engines.” SAE Transactions 75 1967