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“A Study of Factors Affecting Carburetor Performance at Low Air Flows”
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1969 by SAE International in United States
Annotation ability available
Carburetor repeatability at idle was investigated both on the carburetor precision flow stand and on a chassis dynamometer equipped with exhaust emission test equipment. It was determined that some factors which significantly affect idle fuel flow repeatability on the carburetor test stand are:
- 1Surface roughness of mating parts in the fuel bowl inlet system.
- 2Inlet valve eccentricity.
- 3Hydraulic shock in the fuel supply circuit.
In addition, vehicle testing had demonstrated that carbon monoxide changes at idle may occur with constant fuel-air ratio due to changes in fuel temperature. Cycle tests have also shown a relationship between fuel temperature and carbon monoxide levels.
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CitationBier, K., Frankowski, J., and Gonyou, D., "“A Study of Factors Affecting Carburetor Performance at Low Air Flows”," SAE Technical Paper 690137, 1969, https://doi.org/10.4271/690137.
- Fagley, Walter S., Jr. Nunez, Richard R. “Exhaust Gas Analysis as a Tool for Measuring Fuel-Air Ratios” SAE Paper 670483 SAE Mid-Year Meeting Chicago, Illinois May 15-19 1967
- Eltinge, Lamont “Fuel-Air Ratio and Distribution from Exhaust Gas Compositions” SAE Paper 680114 SAE Automotive Engineering Congress Detroit, Michigan January 8-12 1968