Development of an Electronic Fuel Injection System for a 4-Stroke Locomotive Diesel Engine

Introduction There are about 1000 WDM2 locomotives (Rated power: 2600 hp) working for the Indian Railways, which is a upgraded ALCO locomotive engine. The ALCO locomotive engines are rebuilt after 18 years of active service, and they are then upgraded to a higher power rating of 3100 hp. Technical specifications of the locomotive engine after power uprating are given in Table 1. Table 1: Technical specifications of upgraded locomotive engine Configuration V-16, DI, 4S, Turbocharged, Inter-cooled Diesel engine Bore/ Stroke 228.6/ 266.7 (mm) Displacement 10.95 liter/ cylinder Compression Ratio 11.75 (static) Fuel Injection Equipment Mechanical pump line nozzle (PLN) system Nozzle Opening Pressure 250 bar Rated Power 2312 kW @ 1050 rpm Torque at max. speed 22000 Nm @ 1050 rpm