Darlington, UK (1 May, 2014) – Cummins Euro 6 engines made their Turkish debut in Istanbul at the Busworld Turkey event (24th-27th April).  Tailored specifically for bus use, the ISB diesel and ISL gas products were featured on stand D34, hall 1.

Ashley Watton, General Manager - Regional Bus Business, said: “Cummins has achieved significant growth in the Turkish bus market over the last few years. To keep the momentum going we are working closely with our customers to ensure they are ready for the move to Euro 6 in 2016.  Our Euro 6 bus engines are already providing high levels of service with European operators, and we are confident this can be mirrored in the Turkish market.”

Cummins’ Euro 6 ISB diesel engines use proven engine technologies of cooled exhaust gas recirculation (EGR) and variable geometry turbocharging (VGT).  The Cummins VGT is optimised for high torque and low speed capability, delivering significant performance and driveability improvements. 

The engines work with the latest Cummins designed exhaust aftertreatment technology, combining a Diesel Particulate Filter (DPF) with Selective Catalytic Reduction (SCR) to meet the ultra-low levels of emissions. The patented design uses Copper Zeolite technology for very high conversion efficiency, even at low temperatures. 

The 4-cylinder ISB4.5 engine is available up to 210 ps, with an excellent power to weight ratio and a strong peak torque of 760 Nm.  The 6-cylinder 6.7 litre ISB engine extends up to 310 ps for coach installations, and 280 ps for bus applications.  Peak torque is at a high level of 1100 Nm.

For Euro 4 and 5 Cummins adopted a very successful emissions strategy using SCR.  ISB engines delivered class-leading levels of fuel economy with low Adblue usage.  For Euro 6, Euro 5 fuel consumption levels will be at least maintained, and Adblue consumption reduced to around 2-3% of diesel.

“Recognising the regional demand for alternative fueled vehicles, we are also promoting the 8.9 litre ISL G natural gas engine,” added Watton. “In Turkey there are substantial fuel cost benefits of using gas versus diesel, and this engine is an ideal choice for low emission gas powered buses,” he concluded.

The ISL G is available from 250 to 320 ps it has a peak torque of 1356 Nm.  It uses a combination of cooled Exhaust Gas Recirculation (EGR) with stoichiometric combustion to meet Euro 5 and Euro 6 emissions.  Cummins cooled EGR lowers combustion temperatures and reduces engine out emissions and noise.

Stoichiometric combustion, where fuel is burned completely, ensures an oxygen free exhaust.  It enables the use of highly efficient three-way catalyst aftertreatment.  The maintenance-free, three-way catalyst technology is an effective, simple, passive device, packaged as part of the exhaust muffler, providing consistent emissions control across the operating range. 

About Cummins
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, electronic controls, air handling, filtration, emission solutions and electrical power generation systems. Headquartered in Columbus, Indiana, (USA) Cummins employs approximately 48,000 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 6,500 dealer locations. Cummins earned $1.48 billion on sales of $17.3 billion in 2013. Press releases can be found on the Web at www.cumminspr.com.  More Euro 6 information can be found on www.cumminseuro6.com.  Follow us on Twitter at twitter.com/cumminseuro6.