1985-02-01

Investigation of Two-Stage Mixing Using Two-Injector Fuel System on an Air-Cooled Diesel Engine 850105

Comparison of the results of experimental and theoretical investigations of the performance of an air cooled diesel engine with two stage mixing using two injector fuel system and the usual single stage mixing have been presented in this paper. It is shown that two injector fuel system results in an increase of power output by 20-25% on diesel fuel in both the stages and is accompanied only by a moderate rise in cycle peak pressure and exhaust gas temperature. The results of theoretical investigations using mathematical model show that the two stage mixing provides greater controllability of the combustion process through changes in injection characteristic than is possible in the conventional operation.
It is concluded that two injector fuel system provides a very simple and reliable method of carrying out two stage mixing in diesel engines.

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