Advanced electronics enable the QSK95 to be custom-calibrated for specific duty cycles, with the flexibility for performance to be optimized among fuel consumption, transient response and emissions reduction to suit different haul truck applications.

Reducing Emissions And Improving Fuel-Efficiency
The QSK95 utilizes an SCR aftertreatment system to meet Tier 4 Final low-emissions standards with a highly flexible installation package intended to replace the exhaust muffler. Depending on the application, Cummins SCR system is capable of achieving incremental fuel savings of 5 percent to 10 percent. These fuel savings will reduce the cost of operation by more than the cost of Diesel Exhaust Fluid (DEF) required for the functioning of the SCR system.

A major advantage of using Cummins proven SCR aftertreatment is that the QSK95 avoids the need for using an Exhaust Gas Recirculation (EGR) system on the engine to reduce Oxides of Nitrogen (NOx) emissions. The SCR system provides a simpler solution than the inherent complexity of applying EGR to high-output engines and means that no compromise is made to serviceability.

As a further benefit, using SCR means that no additional heat rejection is generated by the engine, avoiding both an installation cost and space impact. Cummins SCR system provides the rugged reliability to withstand the most extreme vibration and shock loads associated with haul truck operation.

About Cummins Inc.
Cummins Inc., a global power leader, is a corporation of complementary business units that design, manufacture, distribute and service engines and related technologies, including fuel systems, controls, air handling, filtration, emission solutions and electrical power generation systems. Headquartered in Columbus, Indiana (USA), Cummins employs approximately 40,000 people worldwide and serves customers in approximately 190 countries and territories through a network of more than 600 company-owned and independent distributor locations and approximately 6,000 dealer locations. Cummins earned $1.0 billion on sales of $13.2 billion in 2010. Press releases can be found on the Web at cummins.com or cumminsengines.com. Follow Cummins on Twitter at http://twitter.com/cumminsengines and YouTube at http://youtube.com/cumminsengines.