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DESIGN OF A HIGH COMPRESSION RATIO TEST ENGINE FOR THE PETROLEUM INDUSTRY
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English
Abstract
The cooperative effort of the automotive and petroleum industries has advanced the efficiency, durability, and performance of automotive engines to present high levels.
In 1950, G. M. Research Laboratories designed and built a 287 cu. in. high compression ratio test engine furnished with three pairs of cylinder heads at compression ratios of 8:1, 10:1 and 12:1. This engine was made available to the petroleum industry as a part of the cooperative effort to improve engine-fuel relationship. The resulting improvement during the past 10 years of engines and fuels, plus the increase in displacement and horsepower, has established the need of a new representative test engine.
This paper describes a new 371 cu. in. V-8 test engine designed to operate at three compression ratios, 10:1, 12:1 and 15:1. The engine was produced as a result of numerous requests from the petroleum industry for an experimental engine suitable for the development of fuels and lubricants for higher compression ratios.
Structurally, the engine is considered adequate after extensive endurance operation under peak load conditions. Results of dynamometer tests indicate full throttle performance gains and fuel economy improvement with increasing ratios similar to those shown by Messrs. Caris and Nelson in their paper, “A New Look At High Compression Ratios” (1958).
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Citation
Mitchell, B., Ransom, G., and Reed, H., "DESIGN OF A HIGH COMPRESSION RATIO TEST ENGINE FOR THE PETROLEUM INDUSTRY," SAE Technical Paper 600107, 1960, https://doi.org/10.4271/600107.Also In
References
- Caris D. F. Nelson E. E. “ A New Look At High Compression Engines” SAE Horning Memorial Award Paper, Presented at the SAE Summer Meeting Atlantic City, N.J. June 8-13 1958
- Kettering C. F. “More Efficient Utilization of Fuels” Presented at the SAE Summer Meeting French Lick, Indiana June 1-6 1947
- McCuen C. L. “1900 to 19XX - A Report on Automobile Engine Progress” Proc. Amer. Petrol., Inst., 31 198 1951
- Caris D. F. McDuffie A. D. “High Compression Ratios in Automotive” Engines” Presented at SAE Section Meeting Philadelphia, Pa. November 12 1947
- Campbell J. M. Caris D. F. Withrow L. L. “Increasing the Thermal Efficiencies of Internal-Combustion Engines” Presented at the SAE National West Coast Meeting San Francisco, California August 16-20 1948
- Caris D. F. McDuffie A. D. Mitchell B. J. Wyczalek F. A. “What’s Happening to Automotive Engines,” Proceedings of the Fourth World Petroleum Congress, Section VI/F, Reprint Rome 1955
- Ethyl Corporation, Distributor Spark Advance Curves for U.S. Passenger Cars 1959