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01/03/2008
FROM:
The Carideo Group Inc.
1250 One Financial Plaza
120 South Sixth Street
Minneapolis, Minnesota 55415
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FOR:
Donaldson Company, Inc.
P.O. Box 1299
Minneapolis, Minnesota 55440
(NYSE: DCI)
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CONTACTS:
Jan W. Drymon
(612) 317-2881
E-mail: jan@carideogroup.com
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Janice Kovala
(866) 484-8329
E-mail: janice.kovala@donaldson.com
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FOR IMMEDIATE RELEASE
DONALDSON ANNOUNCES TWO NEW U.S. PATENTS ON A COMBINATION OF EMISSION REDUCTION DEVICES
DOC and Spiracle™ exceed California ARB 25 percent minimum emissions standard
MINNEAPOLIS, MN – January 3, 2008 – Donaldson Company (NYSE:DCI), a leading, worldwide manufacturer of filtration systems and parts, announced two new patents for a combination of tailpipe technologies and crankcase filtration that address ‘total engine emissions.’
Donaldson began working on a line of diesel emission reduction products in 2001 as part of evolving retrofit programs by the US Environmental Protection Agency (EPA) and California Air Resources Board (ARB). These early efforts focused on the use of DOCs based on the reliability, robustness and broad applicability of the solution. The California program required a minimum particulate matter (PM) reduction level of 25% and DOCs provided only 15-20% particulate matter (PM) reduction on tailpipe emissions. Donaldson needed to develop a new approach to reducing diesel emissions.
Donaldson continued to develop a DOC-based approach by combining a crankcase filter with the DOC tailpipe device to address total engine emissions. This innovative combination resulted in a system that exceeded the 25% minimum. This new approach was recently granted two patents by the US Patent Office.
Donaldson’s total engine emissions approach was verified or approved by both California’s ARB and the US EPA. Upon testing, this approach proved that crankcase filters were also very effective at reducing in-cabin emissions, especially on school buses, where the crankcase vent emissions self-pollute the interior cabin.
Donaldson pursued a patent on this approach which ultimately expanded to include several tailpipe technologies, including partial filters and wall-flow filters. Together, these product combinations provide clean air agencies and regulators with cost-effective options to achieve varying program goals – whether focused on the most cost effective solution or on a solution that provides the highest overall efficiency.
“This innovative and differentiated approach has put Donaldson on the map in retrofit markets”, said Fred Schmidt, Director, Donaldson Retrofit Emissions group. “Not only does this approach provide greater reductions than competing ‘tailpipe only’ solutions, but the combination makes a direct and significant impact on the in-cabin air quality. Scientific studies have proven that diesel emissions cause adverse health effects, especially on respiratory and cardio-vascular health. The Donaldson approach provides significant emission reductions inside school buses, a benefit to both drivers and passengers.”
For more information, visit the Donaldson Emissions website at www.donaldson.com/en/exhaust/emission/index.html or contact Donaldson toll free at 866-675-2847.
About Donaldson Company
Donaldson is a leading worldwide provider of air and liquid filtration systems and replacement parts that improve people’s lives, enhance our customers’ equipment performance and protect our environment. We are a technology-driven company committed to satisfying our customers’ needs for diesel engine equipment and industrial filtration solutions through innovative research and development, superior technology and global presence. Our 12,000 employees contribute to the company’s success by supporting our customers at more than 100 sales, manufacturing, and distribution locations around the world.
Donaldson is a member of the S&P MidCap 400 Index, and Donaldson shares are traded on the NYSE under the symbol DCI. Additional company information is available at www.donaldson.com.
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