Scania premieres two Euro 6 heavy truck engines 31 March 2011
Scania's Euro 6 440 and 480hp (2,300 and 2,500Nm torque respectively) 13-litre engines received their official premiere today, with a web conference for the world's transport press.
The firm's new inline six cylinder engine technology includes EGR, SCR and particulate filtering – DOC (diesel oxidation catalyst) and full-flow DPF (diesel particulate filter).
There is also its high-pressure XPI common rail fuel injection (handling up to three injection pulses), a variable geometry turbo, plus Scania's own engine and exhaust management system.
Both units are based on Scania's modular engine (introduced with EGR for Euro 5, in 2007), with the cast iron cylinder block, ladder frame between block and sump, low-friction, plasma-coated cylinder liners and steel pistons (although these have a remodelled bowl, giving 17.3:1 compression ratio).
Beyond that, low emitting crankcase ventilation is now standard, a plastic oil sump increases capacity by three litres (also reducing noise and saving weight) and cooling capacity is up, as per the R Series, introduced in 2009.
Notwithstanding an overall weight increase of around 200kg, compared to its Euro 5 EGR engine (due to the addition of the AdBlue system and more complex exhaust), the company claims that performance and fuel consumption are easily as good as its Euro 5 engines. In brief, that means Scania's classic high torque to power ratio, at around 5.2, with full torque from 1,000rpm and low rev cruising at 1,100rpm.
Transmissions include 12+2-speed range splitter gearboxes, with or without overdrive, and Scania also recommends its Opticruise for optimised gear changing and ultimate fuel efficiency.
Looking at the fuel itself, these engines are approved for use with 8% biodiesel and tests are underway with 100% biodiesel – the aftertreatment system being the issue. As for AdBlue, consumption is around 3—4%, compared with 5—6% on Scania's Euro 5 SCR engines.
"We're pound to be able to make this remarkable feat of engineering available now," says Martin Lundstedt, Scania's executive vice president of sales and marketing.
"These engines make it possible for keen operators to take the next step and invest in the greenest technology on the market… Vehicles with the latest emission standard command a higher value in the second-hand market," he adds.
Scania's new Euro 6 engines are immediately available across its G- and R-Series rigids and tractor units, with all the cab types and for all applications, including ADR. That includes 4x2, 6x2 and 6x4s – 8x2s and 8x4s won't arrive until next year.
Scania (Great Britain) Ltd
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