Browse Publications Technical Papers 2000-05-0140
2000-06-12

Lean-burn engine~Potentail analysis 2000-05-0140

Analysis of the thermodynamic cycle of IC engine from the point of view of economy and emissions was carried out. From this analysis potential capability of engine development was derived. This potential capability is lean-burn engine fueled with homogeneous mixture with λ ≥ 1,4. Several different modes of fueling were proposed and tested on one-cylinder test engine from the point of view of extending lean operating limit of the engine, emissions and fuel economy. Among them were: fueling with evaporated preheated gasoline, with gas (LPG evaporated) and with liquid butane. From these modes, fueling with liquid butane injected to inlet port was selected and finally tested. This novel system of fueling offered better than standard engine performances and emissions at lean operating limit. These results were validated on full-scale, two-cylinder engine.

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