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Fuel Film Dynamics in the Intake Port of a Fuel Injected Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 01, 1994 by SAE International in United States
Annotation ability available
Up to 80 percent of the total hydrocarbons emitted during the EPA Federal emissions test are produced in the first five minutes of this procedure. It has been theorized that this is in part due to wall wetting of the intake port and cylinder.
This study measures the behavior of the fuel film thickness in the intake port during cold starting, steady state and transient operation. Three injector spray patterns with varying droplet sizes were utilized for the tests. The fuel film thickness in the intake port of a Ford 1.9L engine was measured using optical sensors. It was found that the spray pattern and droplet size affected the port wall wetting characteristics.
CitationBourke, M. and Evers, L., "Fuel Film Dynamics in the Intake Port of a Fuel Injected Engine," SAE Technical Paper 940446, 1994, https://doi.org/10.4271/940446.
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