Ongoing work with methanol- and ethanol-fueled engines at the EPA's National Vehicle and Fuel Emissions Laboratory has demonstrated improved brake thermal efficiencies over the baseline diesel engine and low steady state NOx, HC and CO, along with inherently low PM emissions. In addition, the engine is expected to have significant system cost advantages compared with a similar diesel, mainly by virtue of its low-pressure port fuel injection (PFI) system. While recognizing the considerable challenge associated with cold start, the alcohol-fueled engine nonetheless offers the advantages of being a more efficient, cleaner alternative to gasoline and diesel engines. The unique EPA engine used for this work is a turbocharged, PFI spark-ignited 1.9L, 4-cylinder engine with 19.5:1 compression ratio.


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    Title :

    High Efficiency and Low Emissions from a Port-Injected Engine with Neat Alcohol Fuels


    Contributors:
    M. Brusstar (author) / M. Stuhldreher (author) / D. Swain (author) / W. Pidgeon (author)

    Publication date :

    2010


    Size :

    7 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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