Tuesday, 07 June 2011 08:54
A new engine family, the ISF, has been introduced by Cummins in Australia for light trucks, vans and buses.? The four-cylinder ISF is available in two displacements, 2.8 and 3.8 litres. The engines are being assembled in a new world-class manufacturing facility in Beijing, China. The 2.8-litre ISF will first appear in Australia in the Foton Aumark truck (4.5 tonnes GVM) to be sold by Western Star, and will be rated at 110 kW (148 hp) at 3600 rpm, with peak torque of 360 Nm (266 lb ft) at 1800 rpm. The 3.8-litre ISF, which will become available in other truck and bus chassis, has maximum outputs of 125 kW (168 hp) at 2600 rpm, and 600 Nm (443 lb ft) of torque at 1300 rpm. “This is an exciting expansion of the Cummins product range, allowing us to compete in the light commercial vehicle market for the first time,” says Ron Deane, light-duty product manager for Cummins South Pacific. “In addition to the Foton Aumark truck, we expect to see the ISF offered in a range of light-duty trucks from 4.5 tonnes to 10 tonnes GVM. “It also allows us to broaden our engine offerings in the bus market and is ideal for light 20 to 27 seater buses for shuttle operators, clubs and community organisations.” The ISF uses proven technologies from Cummins’ B-series platform with over four million units sold to date. Emissions compliance is achieved using selective catalytic reduction (SCR) technology. In light-duty trucks and buses, SCR is the most cost-effective method to reduce NOx emissions and also the best technology to optimise fuel efficiency while allowing the engine to run cleaner. The SCR system on the ISF is a fully integrated in-house design, developed by Cummins Emissions Solutions. In fact, Cummins is the only diesel engine manufacturer that has proprietary, integrated core technologies from air intake to exhaust aftertreatment. The ISF engines have been designed for low weight and high power density, providing best in class power-to-weight ratios. ?Major engine components such as the cylinder block and head have 20 per cent less mass than traditional designs with no reduction in strength. This gives an extremely competitive engine weight (ISF3.8 at 280kg, ISF2.8 at 214kg) with no loss in durability. Life to overhaul is expected to be 500,000 km. ?The engines use a high-pressure common rail fuel system with electronic injectors for excellent startability, low noise, low emissions and fuel efficient performance. Other low noise engine features include a rear geartrain and composite oil pan and valve covers. The ISF engines are being produced by Beijing Foton Cummins Engine Company Ltd (BFCEC), a 50/50 joint venture between Cummins Inc. and China’s Beiqi Foton Motor Company. -----------From prime mover magzine
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