New Daimler Heavy Duty Commercial Vehicle Engine Series - Introduction of the 14.8 l EPA07 Engine for Freightliner

Authors

Dipl.-Ing. B. Heil, Dipl.-Ing. W. Schmid, Dr.-Ing. M. Teigerer, Dipl.-Ing. U. Weiß, Dipl.-Ing. S. Melcher, M. Gröneweg, Daimler AG, Stuttgart/Detroit

Year

2008

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 672

Summary

Currently Daimler AG is developing a new Heavy Duty Engine Platform (HDEP) as part of the global standardization of its group-wide product portfolio. The first engine of this engine family with a displacement of 14.8l was recently launched in North America with the presentation of the Detroit Diesel DD 15. Additional variants of this platform with displacements of 15.6l, 12.8l and 10.6l will follow. These engines will then be gradually introduced into all Daimler AG trucks. The first vehicles to receive the new engines will be the Freightliner, Western Star and Sterling brands, which were previously equipped with S60 engines. As from 2009 FUSO trucks will follow which were previously equipped with the 6M70. After that these new engines will also supersede the presently successful Series 500 and the OM457 at Mercedes-Benz Truck in Europe. The whole of the Daimler portfolio will then have been consolidated worldwide. All displacement classes of the Heavy Duty Engine Platform are inline 6-cylinder engines where, alongside economic aspects such as the implementation of maximum commonality throughout all brands and engine sizes, the emphasis is placed particularly on technical progress.

The technical objectives are as follows:

Development of a new engine platform which represents the benchmark and complies with current as well as future emission legislation. For this reason, a new pressure amplified common rail fuel-injection system is being used exclusively for the first time in these engines worldwide.

Furthermore, in order to improve the exhaust gas energy utilization, a turbocompound is an option of this new platform.

The engines are designed to achieve extremely good efficiency rates at high peak pressures, which require a compact and rigid design of the basic engine and crankshaft drive.

Another feature of the new HDEP engine generation is a gear train mounted on the power take off side of the engine, which, among other things, drives the two overhead camshafts.

With this new engine family for heavy duty commercial vehicles, an important step has been made for the successful future and competitiveness of Daimler AG.

Order Members Login