The Influence of Charge Air Coolers Characteristics on the Performance of Heavy Duty Diesel Engines

Abstract

The paper presents research work done on a turbocharged direct injection diesel engine in order to increase power per unit of displacement by means of a better air charge intercooling. The truck engine type D2156MTN8R was tested on the dynamometric bench with two types of air coolers, being measured specific performances on full load - speed characteristics (power, torque, specific fuel consumption, air charge temperature and pressure) and smoke opacity in terms of light absorbtion coefficients.