Conventional Against Common Rail Diesel FIE in Vehicle Application

The results of the investigation of a high pressure fuel injection system (HPFIS) with small accumulator (2500 mm³) and hydraulic intensifier (1:14), are presented. This was a critical evaluation of a new HPFIS in view of the present characteristics of up-to-date conventional fuel injection systems for vehicular diesel engines. The results show the main injection characteristics and their dependence on operating regimes of a multicylinder diesel engine under stationary and transient conditions.