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Heavy-Duty, On- and Off-Highway Engines 2018

06-11-2018 – 07-11-2018 – Cologne, Germany

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Heavy-Duty-, On- und Off-Highway Engines 2017

12th International MTZ Conference an Heavy-Duty Engines

28 and 29 November 2017 | Augsburg, Germany

Efficiency and Emissions

Main Subject Areas

Improved performance and reduced fuel consumption

On- and off-road applications

The legislative framework and possible solutions

Keynote Lecture

Dr. Christian Poensgen
MAN Diesel & Turbo SE


Guided tour of the engine factory of MAN Diesel & Turbo SE at its headquarters in Augsburg, including a tour of the assembly line, mechanical production, the PrimeServ training academy and turbocharger production. The MAN factory in Augsburg is considered to be the “birthplace of the diesel engine”.

Author: Andreas Fuchs

Challenges Posed by Large Engin

Efficiency and exhaust emissions regulations are still driving the heavy-duty engine industry. The motto "Efficiency and Emissions" of the 12th International MTZ Conference on Heavy Duty, On- and Off-Highway Engines reflects these challenges.

There are also other industry-specific driving forces. In his keynote speech, Dr. Christian Poensgen from MAN Diesel & Turbo SE presented challenges facing manufacturers of stationary engines for the power generation and marine engine sectors. In this decade for example, engine development at MAN has been subject to a period of substantial restructuring among customers and regulations. As a result, the last few years have been marked by the changeover and redevelopment of engines to gas and dual-fuel capabilities. 

To achieve this, MAN’s product range was extended by a 5-litre high-speed engine in the lower class (1-4 MW). At the same time, all engines were converted to IMO’s NOx specifications from Tier II to Tier III. SCR solutions have been developed that can be used both downstream of the engine and between the turbines for two-stage turbocharging, or upstream of the turbocharger’s turbine for two-stroke engines.

Hybridisation is the impending challenge 

The concurrent changeover from PLD injection systems to CR systems made it possible to significantly improve engine efficiency, to support the regeneration of exhaust gas aftertreatment and to achieve significant fuel consumption benefits by integrating the conventional powertrain system. Dr. Poensgen also predicted additional challenges for engine manufacturers in future, such as hybridisation of powertrains, unmanned shipping, and fuel conversions within the framework of the IMO sulphur limit values.

In the subsequent first conference session “Medium Speed Engines”, Dr. Udo Schlemmer-Kelling from FEV Europe GmbH also addressed the challenges facing the shipping industry in his speech "Agenda 2030 – Mega Trends in the Large Bore Marine Engine Business". Until 2000, the main driving forces in the marine sector in terms of the development of large engines were plant reliability, acquisition and operating costs, as well as ease of maintenance. However, from the new millennium onwards, another issue was added: the gradually tightening emissions limits. 

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