New Mercedes-Benz V6 Diesel Engines Use DuraBowl® Piston Technology From Federal-Mogul

WIESBADEN, Germany, Sept. 1, 2011 /PRNewswire/ -- Federal-Mogul Corporation (NASDAQ: FDML) has jointly developed with Mercedes-Benz a piston technology for Daimler's latest V6 diesel engine that helps to reduce fuel consumption and emissions. The design gives Mercedes-Benz a piston that fully exploits the advances in thermal and mechanical durability made possible by Federal-Mogul's DuraBowl manufacturing process. Federal-Mogul's DuraBowl piston technology will be among the company latest technologies to be exhibited at this year's IAA (Frankfurt Auto Show, Hall 4.1, Stand E15).

(Photo: http://photos.prnewswire.com/prnh/20110901/DE61577)

Advances in piston designs play a critical role in reducing fuel consumption and emissions. The use of Federal-Mogul's advanced DuraBowl technology allows piston crown geometries that help to burn fuel more efficiently, improving combustion efficiency and reducing emissions. DuraBowl's increased durability also helps designers to reduce piston mass while improving performance. These attributes all lead to reductions in diesel engine fuel consumption and emissions, with improved power output.

"The rising specific output of downsized diesel and gasoline engines place higher thermal and mechanical loads on many of the key components where Federal-Mogul has expertise," said Federal-Mogul President and CEO Jose Maria Alapont. "The DuraBowl piston process shows how we are delivering specialised process technologies that help our customers meet these challenges successfully and support sustainable global profitable growth."

The large-bowl combustion chamber in Daimler's OM642 V6 3.0-litre diesel features a piston crown with an enlarged bowl recess with steep sides and a sharp cutback below the rim. It helps reduce emissions to EU5/EU6-levels by lowering the compression ratio to 15.5:1 from 18:0 (EU4). To strengthen the piston crown, Federal-Mogul's DuraBowl process uses a high-voltage, high-amperage form of Tungsten Inert Gas arc welding (TIG) to remelt the metal around the bowl rim into a highly durable microstructure.

"DuraBowl extends a piston's fatigue resistance by four to eight times under cyclic thermo-mechanical loading," said Rainer Jueckstock, Federal-Mogul senior vice president of Powertrain Energy. "The process required extensive development to produce the ideal current and voltage to deliver optimum results and consistent high quality within just 18 months. The result is a leading, technically advanced, high-performing and very cost-competitive product."

Federal-Mogul pre-machines the cast pistons used in the DuraBowl process. A welding robot then applies a precisely defined energy input around the rim of the bowl in a single pass. The re-melted alloy cools a thousand times faster than when it was originally cast, producing silicon particles that are one tenth of their previous size. This refinement of the microstructure increases the alloy's strength and durability.

About Federal-Mogul

Federal-Mogul Corporation is a leading global supplier of powertrain and safety solutions to the world's foremost original equipment manufacturers of automotive, commercial, aerospace, marine, rail and off-road vehicles; industrial, agricultural and power generation equipment; as well as the worldwide aftermarket. Federal-Mogul's leading technology and innovation, lean manufacturing expertise and global distribution network deliver world-class products, brands and services at a competitive cost. The company's sustainable global profitable growth strategy creates value for its employees, customers and shareholders. Federal-Mogul was founded in Detroit in 1899. The company is headquartered in Southfield, Michigan, and employs approximately 45,000 people in 35 countries.

Federal-Mogul's aftermarket products are sold under a variety of well-known brands, including:  Abex®, AE®, ANCO®, Beral®, Carter®, Champion®, FP Diesel®, Fel-Pro®,  Ferodo®, Glyco®, Goetze®, MOOG®, National®, Necto®, Nural®, Payen®, Precision®, Sealed Power®, Speed-Pro® and Wagner®. All Federal-Mogul trademarks are owned by Federal-Mogul Corporation, or one or more of its subsidiaries, in one or more countries. Visit the company's website at www.federalmogul.com.

* Please note accent over 'e' in Jose Maria Alapont

CONTACT:  Ursula Hellstern
+49 611 2019190
[email protected]

SOURCE Federal-Mogul Corporation

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