This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Evaluating Effects of Fuel Factors on Stabilized Exhaust Emission Levels
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1969 by SAE International in United States
Annotation ability available
Single-cylinder engine studies show that severity of the test cycle used for deposit accumulation markedly affects the level of exhaust emissions obtained with stabilized combustion chamber deposits. These studies also show that the relative stabilized emission levels with nonleaded and leaded fuels vary significantly with the aromatic content of the base fuel.
An extensive evaluation in three groups of passenger cars operated by their owners in normal service showed no significant difference between the stabilized emission levels obtained with commercial nonleaded and leaded fuels. A dynamometer engine test procedure has been developed that simulates short-trip, city-type operation. The accelerated cooldown procedure allows for rapid accumulation of test mileage. Using this dynamometer procedure, the stabilized deposit emission levels of a commercial leaded fuel and a prototype nonleaded fuel are compared.
CitationHall, C., Felt, A., and Brown, W., "Evaluating Effects of Fuel Factors on Stabilized Exhaust Emission Levels," SAE Technical Paper 690014, 1969, https://doi.org/10.4271/690014.
- Gibson, H. J. “Factors Affecting Octane Number Requirement.” SAE Quarterly Trans. Vol. 3, No. 4, (1949), p. 557.
- Gibson, H. J. Hall, C. A. and Hirschler, D. A. “Combustion Chamber Deposition and Knock.” SAE Quarterly Trans. Vol. 61, (1953), p. 361.
- Gibson, H. J. Hall, C. A. and Huffman, A. E. “Combustion Chamber Deposition and Power Loss.” SAE Quarterly Trans. Vol. 6, No. 4, (1952), p. 594.
- Lawson S. D., Moore J. F., and RatherJ .B.Jr., “A Look at Lead Economics in Motor Gasoline.” American Petroleum Institute, Div. of Refining, Reprint No. 36–37, 32nd Midyear Meeting, Los Angeles, May 16, 1967.
- “1967 Automobile Facts and Figures.” Automobile Manufacturers Association, p. 67.