THE CONTRIBUTION MODELLING GASOLINE INJECTION AT ENGINES WITH SPARK LIGHTING

V. Blaga, C. Daroczi

The authors present the general aspects of theoretical modeling of gasoline injection, the principle modeling of some of the elements of gasoline injection, namely the gasoline pump model and the pressure regulator model. It is presented the general model of a spark engine with gasoline injection. The modeling of the motor cycles with spark engines and gasoline injection suggested by the authors is realized by executing a computer program for determining the variation of the three-dimensional and bi-dimensional parameters with the sub-programs: program for calculating the SIE (dependence according to n and l at t= -35...+45 ºC and p= 1·102 kPa); program for calculating the SIE (dependence according to n and to at = 1 and p= 1·102 kPa); program for calculating the SIE cycle with gasoline injection. It was realized a study for calculating the pressure from the admission gallery pga and the admission pressure pa.

Keywords: pressure regulator, valve, pulverization, duration of injection

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