MAN Engines Expands EU Stage 5 Portfolio

By Jack Burke17 December 2020

MAN Engines is expanding its portfolio to EU stage 5 engines for inland waterway transport. In addition to the existing six-cylinder in-line engines, there are four new power ratings that extend the power range from the current 394 HP to 1200 HP.  Two new V12 engines offer 24.2 l displacement and a power of 1000 HP or 1200 HP. The two new 12.4 l six-cylinder in-line engines are 500 HP or 560 HP. The four additional power engines will be available in the fourth quarter of 2021.

“Additional power ratings and types of engine for EU stage 5 are a further building block in the continual expansion of our portfolio of marine engines,” said Claus Benzler, head of Marine MAN Engines.

Currently, the engine manufacturer offers the MAN D2676 six-cylinder in-line engine as the LE487 marine propulsion unit at a power of 394 HP and as the LE328 as a marine auxiliary unit running at 1800 rpm and 1500 rpm.

MAN said the modular exhaust gas aftertreatment (EGA) system is designed to ensure compliance with the strict emission standards. The modular EGA allows for a wide range of installation possibilities since the individual components can be positioned differently, enabling flexible system integration tailored to specific customer needs. This offers advantages not only in confined spaces or situations where access is difficult but also in meeting the different requirements of the emission limit values: For engines of power ratings above 300 kW used on inland waterway transport, the legislators have set higher emission limits per engine for nitrogen oxides (NOx = 1.8 g/kWh) and particulate mass (PM = 0.015 g/kWh). In addition, the number of particulates is limited (PN = 1.0*1012 n/kWh). For this reason, MAN Engines relies on an exhaust gas aftertreatment system with selective catalytic reduction (SCR) and diesel particulate filter (DPF) for engines rated below 300 kW. At power ratings below 300 kW, the statutory specifications for nitrogen oxides (NOx = 2.1 g/kWh) and particulate mass (PM = 0.1 g/kWh) are satisfied using an SCR system on its own without employing a DPF.

MAN Engines’ modular exhaust gas aftertreatment system for working boats was showcased at the International Workboat Show in late 2017. The system employed by the Man Engines business unit is all based on the expertise of MAN Truck & Bus SE. As one of the leading European commercial vehicle manufacturers, the Group has been successfully using SCR systems in its own trucks in high-volume production since 2006. As well as this, MAN Engines also benefits from the experience in fitting and installation gained from the agricultural and industrial sectors, where the technology has been in serial production since 2015 for in-line and V-engines. The EGA is also showing how practical it can be in field trials for working boats, which are currently running on Lake Constance and also in the Netherlands.

 

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