Modernization of the Mechanical Fuel System of a Diesel Locomotive Engine through Physical and Numerical Modeling

Reducing harmful emissions from exhaust gases and increasing energy efficiency are urgent tasks when designing reciprocating internal combustion engines. In this experimental work, the fuel system of a diesel locomotive engine operating on Miller cycle is improved. The purpose study to improve environmental economic indicators engines at minimal financial cost. article provides an overview main research improving supply, mixing combustion. features operation also briefly described. Numerical simulation was performed before bench tests. experiments were full-size with power 1200 kW. measuring equipment technique described in article. technical solutions that made it possible supply A new design for high-pressure pump drive proposed. optimal injection advance angles determined. An original plunger developed. proposed reduce consumption by up 3% (from 217.8 211.4 g/kW·h) NOx two-fold 19.4 8.8 g/kW·h).