Bosch Diesel Particulate Filters to Be in Series Production By 2005

SONOMA, Calif., Sept. 24 -- Today at Michelin's Challenge Bibendum event, Bosch announced it will begin series production of particulate filters for diesel passenger cars and light trucks in 2005. This technology has been proven to reduce up to 98 percent of particulate matter, which is essential for meeting the Environmental Protection Agency's Tier II emission regulations.

By extending its range of products, Bosch will become a single-source for essential emissions-related systems and components for diesel engines, including high-pressure direct injection, particulate filters and exhaust gas sensors, as well as related engine and exhaust gas management systems.

Bosch diesel particulate filters are made of sintered metals, differing from the current industry standard of ceramic. The filter is designed so particulate matter is deposited evenly, making it easier to regenerate. Also, the shape of the Bosch particulate filter has sufficient space for deposits to accrue during the normal service life of a vehicle. This means that drivers should incur no additional costs for service or aftermarket part replacement. Bosch development engineers are working simultaneously on two concepts for the filters, one for use with fuel additives and the other with a catalytic coating. In both cases, the filter is regenerated by the exhaust gases, which burn off the deposited particulates.

Particulate filters for diesel vehicles will be necessary for automakers to achieve Tier II emissions regulations. The company expects sales of particulate filters could reach 6 million annually by 2007, when the Tier II regulations take effect.

In 2002 Bosch acquired the basic technology for sintered metal-based particulate filters, as well as the worldwide rights for further development, manufacturing and sales of such filters for diesel passenger cars and light commercial vehicles, from HJS Fahrzeugtechnik GmbH & Co. in Menden, Germany. The company will invest approximately $223 million in development and production equipment.

Bosch designs and produces precision automotive components and systems sold to vehicle and powertrain manufacturers worldwide. These include systems and components for gasoline and diesel engine management systems, airbag components, brake systems, telematics, as well as small motors, electrical and electronic equipment.

Robert Bosch Corporation, the wholly owned subsidiary of Robert Bosch GmbH, is responsible for North American operations. Robert Bosch GmbH is headquartered in Stuttgart, Germany.