||High Efficiency and Low Emissions from a Port-Injected Engine with Neat Alcohol Fuels.
||Environmental Protection Agency, Ann Arbor, MI. National Vehicle and Fuel Emissions Laboratory.
Spark ignition engines;
Internal combustion engines;
Port fuel injection;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||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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|PUB Date Free Form
||97K; 97R; 81J; 68A
||PC A02/MF A02