A New Concept of Dual Fuelled SI Engines Run on Gasoline and Alcohol
Journal Title: Archives of Transport - Year 2011, Vol 23, Issue 2
Abstract
The paper discusses tests results of dual-fuel spark ignition engine with multipoint injection of alcohol and gasoline, injected in area of inlet valve. Fuelling of the engine was accomplished via prototype inlet system comprising duplex injectors controlled electronically. Implemented system enables feeding of the engine with gasoline only or alcohol only, and simultaneous combustion of a mixture of the both fuels with any fraction of alcohol. The tests were performed on four cylinders, spark ignition engine of Fiat 1100 MPI type. The paper presents comparative results of dual-fuel engine test when the engine runs on changing fraction of methyl alcohol. The tests have demonstrated an advantageous effect of alcohol additive on efficiency and TCH and NOx emission of the engine, especially in case of bigger shares of the alcohol and higher engine loads.
Authors and Affiliations
Zdzisław Stelmasiak
Keywords
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- EP ID EP70181
- DOI 10.2478/v10174-011-0014-9
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