Heavy Duty Truck Engine with Maximum Efficiency – The New 15.2l Engine from MAN

Authors

Dipl.-Ing. N. Schatz, Dr.-Ing. U. Wiebicke,
MAN Truck & Bus AG, Nuremberg;
Dipl.-Ing. H. Klinger, MAN Truck & Bus Österreich AG, Steyr

Year

2015

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 783

Summary

With its D38 engine MAN Truck & Bus has presented a completely newly developed drive unit for the upper power segment in the commercial-vehicle sector. The six-cylinder in-line engine has a capacity of 15.2 litres and is available with ratings of 520 and 560 hp and with a rating of 640 hp for use in heavy-duty tractors. The concept's main features include high ignition-pressure strength, two-stage turbocharg-ing with intercooling, a common-rail injection system with an injection pressure of up to 2,500 bar, two-stage exhaust-gas recirculation and a new and very powerful engine brake called TurboEVBec. In its competitive environment and in comparison with its V8 predecessor, for which it is the replacement, the D38 engine is particularly compact and optimised for payload. Its Euro VI SCRT exhaust system permits space in the chassis for maximum tank capacities since it is just as compact as that in MAN's 12-litre engines.