Exhaust gas aftertreatment

MAN Engines complies with Euro 6c/d, EU Stage V, US EPA/CARB Tier 4, TA Luft and IMO Tier III

Exhaust gas aftertreatment solutions from MAN Engines

Exhaust gas aftertreatment from MAN Engines

To comply with the most important global emission guidelines, MAN Engines offers its customers numerous and flexible solutions for emission reduction. Together with its partners, MAN Engines can provide a wide range of variants for exhaust gas aftertreatment, from exhaust gas recirculation to diesel particulate filters and even SCR systems. As a result, we can provide you with solutions which are tailored to your specific requirements. Our engines thus satisfy the most modern emissions requirements, such as EU Stage V or US Tier 4, while also allowing for emissions downgrades in countries with less strict emission requirements. As customers you also benefit from the high quality of the components used, which have been proven not just in engines from MAN Engines, but also hundreds of thousands of times in the large-scale production of MAN commercial vehicles.

The solution to reduce emissions for most varied applications

On-Road Euro 6c/d
Off-Road EU Stage V
US EPA/CARB Tier 4
Power TA Luft
Marine IMO Tier III
US EPA Tier 4
Subject to technical modifications. Emission levels shown not available for all engine types from an area of application.

Modular exhaust gas aftertreatment (EAT) with SCR

Modular exhaust gas aftertreatment (EAT) from MAN Engines excels due to its compact design and high flexibility in restricted installation spaces. It allows for a wide range of installation possibilities and system integration tailored to specific customer needs, as the individual components can be positioned differently. Modular EAT is available over all segments and for many different applications. The centrepiece of the EAT is an SCR catalytic converter (selective catalytic reduction), which helps to reduce the nitrogen oxides (NOx) in the emissions in a targeted manner. To do this, a 32.5 percent AdBlue© fluid solution is metered in an SCR mixer and then injected continuously and directly into the exhaust tract. There, the solution reacts with the nitrogen oxides and converts them into water (H2O) and harmless nitrogen (N2). The system can either be used by itself, as SCR-only, or combined with other components such as a DOC/DPF (diesel oxidising catalytic converter/diesel particulate filter), to cover many different emission guidelines.

Functionality of the modular exhaust after-treatment of MAN Engines


Modular exhaust gas aftertreatment in the spotlight

pilot boat Luna SCR System

Compact SCR system for the “Luna” pilot vessel satisfies IMO Tier III

For its latest pilot boat “Luna”, the Dutch Pilot Association (DPA) has entrusted two MAN D2862 LE469 engines with modular exhaust gas aftertreatment (EAT) from MAN Engines. This is the first time the selective catalytic reduction (SCR) system, which enables working vessels to satisfy the IMO Tier III emission standard, has been successfully tested in the field in the port of Rotterdam.

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Götz BHKW SCR

Modular EAT safeguards upcoming biogas cogeneration unit limit values

The new 44th German Emission Control Act (Bundes-Immissionsschutzverordnung; BImSchV) considerably restricts the limit values for biogas cogeneration unit emissions. MAN Engines is ready for the particularly strict emission limit values for nitrogen oxides (NOx), and has already been successfully testing its modular exhaust gas aftertreatment system in the field at a biogas facility since spring 2018.

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Press releases about the EAT

first IMO Tier III engines for workboats

MAN Engines releases first engines for emission standard IMO Tier III for working boats

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bauma launch of MAN 9-litre off-road D1556 engine

Bauma: New launch of MAN Engines’ 9-litre off-road D1556 engine for construction machinery

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MAN Engines presents solution for meeting IMO Tier III in working boats

SMM: MAN Engines presents solution for meeting IMO Tier III in working boats

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