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arbcombo -- Extensions of ECS Purifilter Systems

Posted: 14 Apr 2011 11:58:31
Extension of Engine Control Systems (ECS) Purifilter PlusTM and
PurifilterTM Systems for On-Road Applications

The Air Resources Board (ARB) granted an extension for ECS
Limitedís Purifilter PlusTM and PurifilterTM Systems to include
an upgraded backpressure monitor design. The extension for
Purifilter also includes certain on-road engines with model years
1996 and 1997, certified by the United States Environmental
Protection Agency (federal engines).  The approved federal
engines are certified to particulate matter emission levels equal
to or less than 0.1 grams per brake horsepower-hour, and are not
certified with exhaust gas recirculation.  Purifilter PlusTM and
PurifilterTM both include a catalyzed silicon carbide wall-flow
filter for passive regeneration.  Purifilter PlusTM also includes
electric heating elements for active regeneration.  Both systems
achieve at least an 85 percent reduction in emissions of diesel
particulate matter.  Specific conditions for which Purifilter
PlusTM and PurifilterTM have been approved may be found in the
Executive Orders at:
http://www.arb.ca.gov/diesel/verdev/verdev.htm . 

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