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U.S. Department of Energy
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Exhaust emissions characteristics for a general aviation light-aircraft Teledyne Continental Motors 6-285-B (Tiara) piston engine. Final report

Technical Report ·
OSTI ID:5669567
The Teledyne Continental Motors 6-285-B engine (S/N700106) was tested at the National Aviation Facilities Experimental Center (NAFEC) to develop an 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 temperature, 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 sea level standard-day conditions. The results of engine testing under different ambient conditions are also presented, and these results show a trend toward higher levels of emissions output for CO and HC under warm-or hot-day conditions while producing slightly lower levels of NOx.
Research Organization:
National Aviation Facilities Experimental Center, Atlantic City, NJ (USA)
OSTI ID:
5669567
Report Number(s):
AD-A-074338/5
Country of Publication:
United States
Language:
English