Hannover, Germany (September 19, 2012) - The Euro 6 ISL G natural gas engine is displayed on Cummins stand for the first time at IAA, Hannover (Hall 11, D19). The 8.9 litre engine is available from 250 to 320 ps for alternative fuel bus and truck applications, with a peak torque of 1356 Nm.

Neil Pattison, Director - Automotive Engine Business for Europe, Middle East and Africa, said: ‘Since its introduction, truck and bus operators have noticed the impressive low-end torque, transient response and quiet operation of the ISL G. The ultra-clean nature of its design means that these benefits are carried through to Euro 6 with minimal changes from Euro 5.”

The ISL G engine uses a combination of cooled Exhaust Gas Re-circulation (EGR) with stoichiometric combustion. With the experience of over 1 million engines to date, Cummins cooled EGR systems are proven to lower combustion temperatures and reduce engine out emissions and noise. Stoichiometric combustion is where fuel is burned completely, ensuring an oxygen free exhaust. This enables the use of highly efficient
three-way catalyst aftertreatment.

The maintenance-free, three-way catalyst technology carries over from Euro 5 to Euro 6. It is an effective, simple, passive device, packaged as part of the exhaust muffler, providing consistent emissions control across the operating range without the need for a Diesel Particulate Filter (DPF) or a Selective Catalytic Reduction (SCR) system. 

The Euro 6 ISL G engine will add a closed crankcase ventilation (CCV) system and upgraded electronic controls. The new remote mounted CCV system recycles crankcase blowby gases to minimize exhaust emissions and optimize the greenhouse gas benefits of natural gas engines. An updated electronic control module is required to manage the On-Board Diagnostics (OBD) requirements for Euro 6.

“The ISL G engine block and other key components are shared with the diesel engine, meaning it offers alternative fuel capability with the inherent durability of the Cummins ISL diesel engine,” added Pattison.
Low carbon power solutions such as natural gas are growing in popularity. Their ability to run on compressed and liquefied natural gas or biomethane (renewable natural gas made from biogas or landfill gas and upgraded to vehicle fuel quality) is increasing their attractiveness with environmentally conscious operators and local

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 44,000 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 $1.85 billion on sales of $18 billion in 2011. Press releases can be found on the Web atwww.cumminsengines.com.
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