The engine Series 1000 to 1500 supplement the established Mercedes- Benz engines OM 924 LA, OM 926 LA, OM 460 LA, OM 501 LA and OM 502 LA. These engines were developed to comply with Emission Standards EU IIIB and EPA Tier 4i, which came into effect in 2011.
The MTU Series 1000 for off-highway applications was derived from the new commercial vehicle engine family OM 93x from Daimler AG, which was introduced with the Euro VI. After 15 years, this engine series will gradually replace the OM 92x engines.
The new global engine platform was developed consistently with regard to operating costs, a long service life and reliability. Tognum said that from the outset, the focus was not only on the operation of the familiar vehicle applications but also on the implementation of further applications from the off-highway sector. This was achieved, amongst other things, by making a clear distinction between easily modifiable, application-specific interface components and highly integratable, standardized modules (for example, the oil-coolant module) that are used for different applications.
To utilize the modular concept of the OM 93x on-highway engines for offhighway applications, the construction kit was extended by application-specific components and testing was supplemented by offhighway- specific requirements.
The manufacturer said that right from the project’s start, the requirements of the exhaust gas legislation for on- and off-highway applications were clearly evident. Customer and emission requirements were met from the start by using numerous nonvariable parts.
The aim was to position the Series 1000 with regard to torque and power above the predecessor series OM 92x. This requirement was determined by the customers’ demands for increased engine power and the need to close the gap between the engine series that existed up to now. A further goal during development was to increase the operational life in comparison to the predecessor series by 20%.
The company went on to say that when Emission Standards EU IV and EPA Tier 4 final come into effect, MTU will offer Series 1000 and 1100, 1300 and 1500 for off-highway applications. The new Series 1000 to 1500 cover a power range from 100 to 460 kW and will observe the emission limit values by means of exhaust gas recirculation and exhaust gas aftertreatment without particulate filters. All of the engines are in-line engines with a compact design.
The on-highway equivalents of these series are the Daimler engines of type OM 93x and OM 47x, which meet the requirements of the more stringent exhaust gas standard Euro VI with a combined SCR and diesel particulate filter system.
The company went on to say that in the event of further tightening of the off-highway exhaust gas legislation, a fully developed system that has already proven its value in large-scale production in the on-highway sector is already available as a basis. Tognum said that this meant that the Series 1000 to 1500 were ideally equipped for future emissions requirements.
