Bosch's Third-Generation Common Rail Technology Available for All Vehicle Classes

FARMINGTON HILLS, Mich., March 16 -- Bosch's third-generation common rail injection system is now available on an increasing number of diesel engines on the market. In 2005, nine new engines by four OEMs will be equipped with Bosch's piezo injection system including Audi, Volkswagen, Mercedes-Benz and Renault.

The special feature of the third-generation common rail is the inline injectors with their piezo actuators integrated into the injector shaft located near the nozzle needle. The inline injector transmits the movement of the piezo package without mechanical elements and friction to the nozzle needle, which allows for extremely quick switching. Additionally, the system provides OEMs with more freedom in engine design.

"To the driver, the change to the new generation means even fewer pollutant emissions and -- depending on the application -- greater fuel economy, more engine power and, last but not least, more quiet running diesel engines," said Dr. Ulrich Dohle, president of the Bosch Diesel Systems Division.

Compared to the previous common rail systems, the new injection technology, depending on the design concept, has the potential of reducing fuel consumption by another three percent; lower pollution emissions by up to 20 percent; increase engine power by up to five percent; and, reduce engine noise by up to three decibels.

Bosch started the large-scale production of the innovative injection system in 2003, first fitting it to the 3.0 liter six-cylinder Audi engine. For its next common rail system for passenger cars, Bosch is currently studying concepts with even higher injection pressures of more than 2,000 bar and injectors with variable injection geometry.

One of the largest North American automotive suppliers, Bosch develops, manufactures and supplies precision components and systems -- including body electronics, chassis and powertrain -- for every major vehicle manufacturer worldwide.

In North America, the Bosch Group manufactures and markets automotive original equipment and aftermarket products, industrial automation and mobile products, power tools and accessories, security technology, packaging equipment and household appliances. Bosch employs more than 23,300 associates in more than 80 facilities throughout North America and reported sales surpassing $7.5 billion in 2004. For more information, visit http://www.bosch.us/ .