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ORI of Today's Vehicles - Part III
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English
Abstract
In continued studies with full-scale engines on the laboratory dynamometer, the effect of the engine variables air-fuel ratio, ignition timing, and rate of exhaust gas recirculation on octane requirement increase and exhaust emissions was studied in two engines at two compression ratios. A lead-free base gasoline was used in all tests, and a test procedure previously shown to relate well with road tests was followed. In both engines, ignition timing and rate of exhaust gas recirculation were found to have appreciable effects on octane requirement increase. Air-fuel ratio had an effect in one engine but not the other. The effect of compression ratio was mixed.
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Citation
Gray, D., Meguerian, G., and Tracy, C., "ORI of Today's Vehicles - Part III," SAE Technical Paper 780594, 1978, https://doi.org/10.4271/780594.Also In
References
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- Keller B. D. Meguerian G. H. Tracy C. B. Smith J. B. “ORI of Today's Vehicles.” SAE Preprint 760195
- Keller B. D. Meguerian G. H. Tracy C. B. Smith J. B. “ORI of Today's Vehicles-Part II.” SAE Preprint 770195