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Emissions Traps Tested on U.S. Locomotives

Posted on February 22, 2005

A Medway, Massachusetts, U.S. A., company¹s electronically controlled emissions trap is among new technology selected for locomotive engine tests by nation¹s railroad industry. An advanced diesel emissions filter, developed by Rypos, Inc., that automatically cleans itself is being tested for installation on locomotive engines as part of an intense effort to virtually eliminate air pollution from trains -- especially on the West Coast.

Sponsored by the Burlington Northern Santa Fe and Union Pacific Railroad, the study is being done to find ways to reduce emissions from 20 000 locomotive engines throughout the US. Many of these engines were manufactured between 1973 and 2000 when environmental rules were more lax. They will have to be retrofit to reduce emissions during their next regular overhaul.

The Rypos Active Filtereliminates 70 to 90% or more of the particulates and automatically cleans or regenerates to keep the exhaust flowing unimpeded without maintenance and downtime, according to the company.

Southwest Research Institute (SwRI), San Antonio, Texas, is conducting tests of the Rypos Active Filter and other emissions control devices as part of this program.

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