Cummins Tier 4 Interim “Clear Advantage”
on Display at CONEXPO-CON/AGG

Cummins Inc. will present one of the largest displays of Tier 4 Interim engines, exhaust aftertreatment and filtration products at CONEXPO-CON/AGG 2011. The Cummins display will feature a full lineup of the latest generation 3.3 l to 15 l engines, ranging from 60 hp to 600 hp.

Cummins Tier 4 Interim engines are delivering significantly higher fuel economy and improved engine response than their successful Tier 3 predecessors. This combination of higher performance and cleaner, low-emissions operation will be represented with a Tier 4 “Clear Advantage” message for visitors to the Cummins booth.

Cummins 6-cylinder QSB6.7, QSL9, QSX11.9 and QSX15 engines on display meet EPA Tier 4 Interim/EU Stage IIIB regulations for above 173 hp introduced January 1, 2011. They are integrated with the Cummins Particulate Filter aftertreatment system to remove Particulate Matter (PM) emissions by operating with up to 99% passive regeneration in most applications, with no impact on equipment performance.

For the January 1, 2012, Tier 4 Interim/Stage IIIB emissions regulations covering the 75 hp to 173 hp category, the 4-cylinder QSB3.3, QSB4.5 and lower ratings of the QSB6.7 utilize the Cummins Compact Catalyst to remove PM. The catalyst is a fully passive, exhaust flow-through aftertreatment with a service-free “fit-and-forget” advantage for smaller equipment typically used in rental fleet applications.

A cooled Exhaust Gas Recirculation (EGR) system features on all Cummins Tier 4 Interim engines above 74 hp. EGR efficiently reduce nitrogen oxides (NOx) emissions by lowering the combustion temperature.

Completing the Cummins engine lineup at the show is the B3.3, certified for current Tier 4 Interim emissions across a 60 hp to 74 hp range, without the need for aftertreatment, EGR or electronic controls to offer a cost-effective power solution.

Visitors to the Cummins booth will be able to talk to Tier 4 experts about the operational and performance benefits of Cummins technology.

Source: Cummins Inc.

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