Lean turbocharged operation with methanol was characterized using a single-cylinder spark ignition engine. Efficiency, exhaust emissions, and combustion properties were measured over a range of air/fuel ratios at two naturally-aspirated and three turbocharged conditions.When compared to stoichiometric, naturally-aspirated operation, the lean turbocharged conditions improved efficiency while reducing carbon monoxide and oxides of nitrogen emissions. However, unburned fuel and aldehyde emissions increased. If used in conjunction with an oxidizing catalyst and appropriate feedback controls, lean turbocharged operation has the potential of improving efficiency and exhaust emissions performance over a stoichiometric, three-way catalyst system.
Methanol as a Fuel for a Lean Turbocharged Spark ignition Engine
Sae Technical Papers
SAE International Congress and Exposition ; 1989
1989-02-01
Conference paper
English
Methanol as a fuel for a lean turbocharged spark ignition engine
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