Corning introduces advanced particulate filter for light-duty diesel vehicles

CORNING, N.Y.–(BUSINESS WIRE)–April 27, 2005–Corning Incorporated announced that it will begin supplying a new, advanced diesel particulate filter to light-duty vehicle manufacturers later this year. The Corning DuraTrap AT filter uses an advanced material and monolithic design to deliver high filtration efficiency and excellent pressure drop performance, with enhanced durability.

With a filtration efficiency of greater than 90 percent, the Corning DuraTrap AT filter will help diesel automobile manufacturers meet increasingly stringent particulate emissions regulations. This new filter also provides excellent pressure drop performance to help minimize the impact on engine power output. The Corning DuraTrap AT filter can be used in either catalyzed or uncatalyzed applications.

Limited shipments of this new filter for serial application on selected diesel passenger cars are expected to take place by the fourth quarter of 2005. The Corning DuraTrap AT filter is one of several advanced oxide ceramic filters that the company has developed for light-duty diesel applications This new filter uses an advanced aluminum titanate composition to deliver excellent thermal shock resistance and performance under demanding conditions. The DuraTrap AT filter also uses a monolithic (single unit) structure designed to enhance long-term durability.

The new filter has a cellular structure with individual channels open and plugged at opposite ends. Exhaust gases enter the open end, flow through the pores of the cell walls, and exit through the adjacent channel. Soot particles are too large to flow through the pores, and they collect on the channel walls. Periodically, the filter is regenerated – or heated – to consume the soot and clean the filter.

With their superior fuel economy, performance and long-term durability, diesel engines are an increasingly popular choice for consumers. Capturing more than 40 percent of the new passenger vehicle market in Europe, diesel-powered automobiles continue to grow in this and other markets worldwide.

Corning is a leading supplier of advanced particulate filters and catalytic converter substrates to all of the world’s major manufacturers of diesel and gasoline engines and vehicles. The company invented an economical, high-performance cellular ceramic substrate in the early 1970s that is now the standard for catalytic converters worldwide. Corning was awarded the United States National Medal of Technology for its invention of the cellular ceramic substrate. In 1978, Corning developed a cellular ceramic particulate filter to remove soot from diesel emissions.


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