Kortrik, Belgium (October 20, 2011) -

The political will to lower fuel consumption and CO2 emissions in public transport is driving the demand for more diesel electric hybrid bus installations.  Displayed by Cummins at the Busworld  Europe event (Hall 9, Stand 20), the class leading ISBe4.5 and ISBe6.7 engines have become the most widely selected for this type of low-carbon solution.

The ISBe engines already meet Euro 5 and EEV emissions without the need for additional particulate filtration and the resulting installation and maintenance costs. These super clean design characteristics coupled with high power-to-weight ratios mean that, when installed in a hybrid installation, they are easily able to replace engines of higher displacement.  For instance the 4.5 litre ISBe hybrid engine will have the equivalent performance of the 6.7 litre ISBe in a standard diesel bus. The 6.7 litre ISBe hybrid will perform as well as Cummins ISLe 8.9 litre in a standard diesel bus.

“Cummins customers including Alexander Dennis, Solaris, VDL and Wright Bus have all introduced successful hybrid buses using our engines that are delivering significant fuel economy and CO2 improvements,” said Neil Pattison, Cummins Automotive Business Director for Europe, Middle East and Africa. 

“Our engineers work in close partnership with the OEM engineering teams to provide quality installations that deliver both environmental and running cost benefits.  Good examples of this are the successful ADL Enviro 400 and the Wright Bus New Bus for London, which are some of the cleanest buses on the planet,” he continued. 

“We ensure that our products are easily capable of managing the different operating characteristics of hybrids with no impact on engine durability.  They are compatible a variety of hybrid transmissions for use in series or parallel configurations, so they can be used in a wide range of single deck and double deck buses with engine capacities from 4.5 to 8.9 litres,” added Pattison.

Also on display at Busworld is Cummins Westport ISL G natural gas engine.  Designed for urban bus applications it is EPA2010, Euro 5 and EEV emissions capable. With excellent low end torque and maintenance-free aftertreatment, the ISL G delivers diesel-like performance and reliability.  Operators can take advantage of the lower cost of natural gas as well as improve their environmental credentials. 

“The ISL G gas engine provides an alternative low-carbon solution to hybrids.  The ultra clean characteristics of this product mean it will move to Euro 6 with very little development work required,” concluded Pattison.

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, 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 www.cummins.com  or www.cumminsengines.com. Follow Cummins on Twitter at http://twitter.com/cumminseurope and YouTube at http://youtube.com/cumminsengines.