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Scania extends its range of EEV and Euro 5 engines

24 September 2008 | Tags: EEV, Euro 5, IAA 2008 | Posted in: Engines, IAA

Scania’s new inline engine platform meets Euro 5 emission standards without aftertreatment, marking a breakthrough in engine technology. Scania is continuing to extend this new engine range to include all truck series as well as buses and coaches. Additional engines cover the need for Euro 5 and EEV, as well as giving customers a choice of EGR and SCR technology for some truck applications.

Pioneering technology in new engine platform

Scania’s new inline engine platform pioneers several new technologies. A new common-rail injection system, Scania XPI, reduces particulates with its extra-high injection pressures. Common-rail also allows fine-tuning of combustion with multiple injections. Scania EGR exhaust gas recirculation lowers the combustion temperature to reduce NOx emissions, on some engines with a patented two-stage cooling circuit. A variable-geometry turbocharger supplies precisely the right amount of EGR to the intake side. All this is controlled by Scania’s own engine management system.

The new 5- and 6-cylinder inline engines span outputs from 230 hp and 1050 Nm, to 480 hp and 2500 Nm. High torque ratings provide exceptional driveability and enable highly economical overall gearing at low cruising revs. The engines are now being introduced in all Scania truck series – P, G and R – and throughout the Scania bus and coach range.

Since the introduction around one year ago, some 2,500 trucks and buses with the new engine platform have so far been delivered to customers in selected countries.

Euro 5 and EEV (enhanced environmentally friendly vehicles)

Euro 5 becomes mandatory for all new vehicles from October 2009. However, growing environmental concern has made authorities and operators look for solutions yielding the lowest possible emissions. Until the rules for Euro 6 are finalised and manufacturers have had time to develop corresponding products, this demand is being met by EEV standards. There is thus an appreciable market for EEV in buses and also for certain truck applications.

Scania is responding to this demand by providing EEV as well as Euro 5 versions of its 230, 280 and 320 hp 9-litre engines for trucks as well as buses. A new 360 hp EEV version caters for the needs of the fast-growing intercity bus and coach segment.

An EEV version of the 420 hp truck engine covers the need for the lowest possible emissions, for example in some construction, haulage and special-purpose applications, while enabling operators to prove their environmental commitment and in some cases benefit from incentives.

Choice of technology

EGR (exhaust gas recirculation) is used exclusively on buses, whereas truck operators in the medium-output range have a choice of EGR and SCR (selective catalytic reduction). The high-output V8 engines use SCR technology. (Euro 4 and Euro 3 engines are also available for some markets.)

Overview of EEV engines for trucks, buses and coaches

hp	230	270	280	320	360	420
kW	169	198	206	235	265	309
Nm	1050	1200	1400	1600	1600	2100
Litres	9.3	8.9	9.3	9.3	9.3	11.7
Emission control	EGR	EGR	EGR	EGR	EGR	SCR
Fuel	Diesel	Ethanol	Diesel	Diesel	Diesel	Diesel
Use	Truck Bus	Truck Bus	Truck Bus	Truck Bus	Bus	Truck

Overview of Euro 5 engines for trucks, buses and coaches

hp	230	280	320	360	380	400	420	440	480	500	560	620
kW	169	206	235	265	280	294	309	324	353	368	412	456
Nm	1050	1400	1600	1900	1900	2100	2100	2300	2500	2500	2700	3000
Litres	9.3	9.3	9.3	12.7	11.7	12.7	11.7	12.7	12.7	15.6	15.6	15.6
Emission control	EGR	EGR	EGR	EGR	SCR	EGR	SCR	EGR	EGR	SCR	SCR	SCR
Fuel	Diesel	Diesel	Diesel	Diesel	Diesel	Diesel	Diesel	Diesel	Diesel	Diesel	Diesel	Diesel
Use	Truck Bus	Truck Bus	Truck Bus	Truck	Truck	Truck Bus	Truck	Truck Bus	Truck Bus	Truck	Truck	Truck

For more information, please contact

Per-Erik Nordström, Product Affairs, mobile tel. +46 70 5535577, email per-erik.nordstrom[at]scania.com

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