Exhaust Emissions Characteristics for a General Aviation Light-Aircraft Avco Lycoming I0-360-A1B6D Piston Engine.
NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY N J
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The Avco Lycoming IO-360-A1B6D engine SN888-X was tested at the National Aviation Facilities Experimental Center NAFEC to develop a steady state exhaust emissions data base. This data base consists of current production baseline emissions characteristics, lean-out emissions data, effects of leaning-out the fuel schedule on cylinder head temperatures, and data showing ambient effects on exhaust emissions and cylinder head temperatures. The engine operating with its current full-rich production fuel schedule could not meet the proposed Environmental Protection Agency EPA standard for carbon monoxide CO under sea level, standard day conditions. The engine did, however, meet the proposed EPA standards for unburned hydrocarbons HC and oxides of nitrogen NOx under the same sea level test conditions. The results of testing the engine under different ambient conditions hot day are also presented, and these results show a trend toward higher levels of emissions output for CO and HC while producing slightly lower levels of NOx. Author
- Jet and Gas Turbine Engines
- Air Pollution and Control