MAN Engines Releases Tier 3-Compliant Marine Engine

By Jack Burke15 May 2019

MAN Engines is now offering 12-cylinder, IMO Tier 3 engines with a power range from 551 to 1213 kW.

The Tier 3 designation is particularly relevant to customers in Canada and the USA’s East and West Coast Emission Control Areas (ECAs), who are now subject to regulatory limits around 70% stricter than IMO Tier 2, the company said. Customers in the North Sea and Baltic Sea ECAs needing to prepare for the mandatory limits, which will come into force on Jan. 1 2021, now have a series of options in the MAN Engines range.

The solution ensuring compliance with the IMO Tier 3 limits is MAN Engines’ modular exhaust gas aftertreatment (EAT) system, which was exhibited at the SMM trade fair last year. The system offers a high level of flexibility and is extremely compact, which makes it well suited for meeting the diverse requirements associated with professional shipping, the company said. The modular EAT allows for a wide range of installation possibilities, as the individual SCR catalytic converter components can be positioned differently, enabling flexible system integration tailored to specific customer needs.

The key to cost savings and greater system simplicity was the decision to avoid a complex exhaust gas recirculation system and heavy, bulky components like diesel particulate filters and oxidation catalytic converters, the company said

MAN Engines’ modular exhaust gas aftertreatment system was showcased at the International Workboat Show in New Orleans, LA, back in late 2017. The IMO Tier 3 compliance solution 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 the its own trucks in high-volume production since 2006. As well as this, MAN Engines said it 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.

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