Cummins Debuts Mobile Tier 4 Generators

Posted by Irina Tabakina

U.S. EPA Tier 4 Final certified mobile generator sets with 150 kW to 275 kW power outputs are now available from Cummins Power Generation for the rental market. The new units are based on the Cummins QSB7 and QSL9 engine platforms that have undergone refinements to meet EPA Tier 4 Final regulations. Cummins was able to meet the new Tier 4 Final regulations through a combination of in-cylinder engine improvements, exhaust gas recirculation (EGR), selective catalytic reduction (SCR) exhaust aftertreatment and diesel oxidation catalyst (DOC). These engines do not require the use of a diesel particulate filter (DPF) to meet the new air quality standards.  In addition, these mobile rental generators are approximately 4 to 5 percent more fuel efficient than previous Tier 3 models, according to the company. The Tier 4 Final regulations limit mobile generator set emissions to 0.4 grams per kWh of nitrogen oxides (NOx) and 0.02 grams per kWh of particulate matter (PM or soot). These levels represent a 90 percent reduction of the two pollutants from the previous Tier 3, which was introduced in 2005. The new Cummins Power Generation Tier 4 Final certified units include the C150D2RE generator set, standby rated at 150 kW, the C200D2RE generator set, standby rated at 200 kW and the C275D2RE generator set, standby rated at 275 kW.


(As published in the November 2014 edition of Maritime Reporter & Engineering News -

Other stories from November 2014 issue


Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.