Press-Information

Friedrichshafen, 30 July 2008. Tognum subsidiary MTU Friedrichshafen will supply the traction system for the World’s cleanest diesel locomotive. From End of July, an engine of the Series 4000 with exhaust gas after-treatment will be operated for trial on a switcher engine of the Deutsche Bahn. The research project with the short name “Locex“ (for “Locomotive with Clean Exhaust“) is scheduled to run for two years. “With this joint project, we are continuing the trials for future-orientated technologies for emission reduction“, explains Tognum CTO Dr. Gerd-Michael Wolters. “As a supplier of drive & propulsion systems, we are fully prepared to face future emission limits with technologies such as the Particulate Filter, Exhaust Gas Recirculation (EGR) and Urea Injection for NOx Reduction.“

The success of the exhaust gas after-treatment has already been proven on the test stand at MTU Friedrichshafen: this prototype exceeded the required exhaust gas regulations that will apply to diesel engines in rail vehicles throughout Europe from 2012, the future standard IIIB. Project partners Deutsche Bahn and MTU Friedrichshafen now want to provide practical proof of this success. The NOx emissions, including CO2, is supposed to be reduced by more than half, whilst soot particle emissions are planned to decrease to one tenth of current levels. These extremely low levels can be obtained by way of a combination of particulate filters and urea injection in the SCR catalyst (“Selective Catalytic Reduction“). To achieve this, the locomotive needs an additional tank with urea, as well as a suitable filling station in the locomotive depot in Kornwestheim. The Series 294 Locex loco provides a power output of 1,000 kilowatts and is utilized in heavy-duty switcher operations.


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MTU Friedrichshafen GmbH – A Tognum Group Company
MTU Friedrichshafen GmbH is the core company of the Tognum Group. It develops and manufactures diesel engines and complete propulsion/drive systems for ships, heavy land and rail vehicles, industrial drive systems and decentralized power generation plants. Covering diesel engines from 20 to 9,100kW as well as gas turbines, the range of products is one of the most modern and wide-ranging in the industry. For the control and monitoring of engines and drive systems, the company produces custom-tailored electronic systems.

Tognum is one of the world’s leading suppliers of high-speed diesel engines and complete propulsion systems for ships and heavy land and rail vehicles, as well as industrial drive systems and decentralized power plants. These business operations are organized in two divisions: Engines and Onsite Energy Systems & Components.

Tognum’s product portfolio includes diesel engines in the power range from 20 to 9,100 kilowatts, gas engine systems, gas turbines and fuel cells, and is one of the most modern and comprehensive in its sector. In addition, the Group develops and manufactures tailored electronic control and monitoring systems for its engines and propulsion systems.

Sales of the Tognum Group amounted to more than €2.8 billion in 2007. At the end of 2007, the Group employed approximately 8,200 personnel worldwide. It maintains a global sales and distribution network including 26 fully consolidated subsidiaries, more than 130 distribution partners and 1,100 authorized dealers
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