Browse Publications Technical Papers 2004-01-0029
2004-03-08

Diesel Common Rail Injection System Behavior with Different Fuels 2004-01-0029

In the present paper, an analysis of non-evaporating, transient Diesel sprays generated by an automotive common-rail, electronic controlled injection system is described. A standard Diesel fuel and a pure Biodiesel were used for the tests, with sprays evolving in a pressurized test chamber and generated by both cylindrical and conical hole nozzles. The spray analysis is performed mainly by means of a laser sheet technique in order to obtain global spray data suitable for tuning direct injection systems to such fuels and for numerical codes validation. A dispersion analysis among different jets was also performed, along with the injection rate measurement. A PDA system was also used to characterize the behavior of the two fuels with the prototype injector nozzles at ambient conditions.

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