New 7 – liter Scania engines – Scania introduces a series of 7-liter engines, primarily for urban applications, which can guarantee a reduction in fuel consumption of up to 10%. Three power levels – 220, 250 and 280 hp – 6 cylinders in line. Noise levels, weight and reduced fuel consumption. The 7-liter Scania engine offers the performance and driveability required by customers for heavy-duty urban applications. The compact dimensions of the engine also open the doors to the P-series cabs with a lowered engine tunnel. Thus, Scania produces four families of Euro6 engines that, with the new generation of vehicles, range from 220 to 730 hp, with the possibility of using different alternative fuels
New 7 Liter Scania Engines
“With this new engine series, we are about to significantly expand our offer for urban customers,” says Henrik Eng, Product Director, Urban, Scania Trucks. “Characteristics such as the reduced weight of 360 kg and the significant reduction in fuel consumption perfectly match the need to find sustainable transport solutions typical of booming cities. However, despite the format, we have not compromised on the particular characteristics of Scania as performance, robustness and efficiency “.
New Scania engines with Cummins
The new 6 – cylinder Scania engines in line, developed in collaboration with Cummins, Scania’s long-standing partner for the development of engines and components, have excellent low-speed performance, are equipped with a fixed geometry turbocharger and only use the reduction selective catalytic converter (SCR) for exhaust gas aftertreatment, in compliance with Euro6 regulations. The natural environment of the new Scania 7-liter inline 6 – cylinder engine series is represented by urban applications. These new engines are destined to conquer more and more customers.
Scania 7 Liter Engine Technology
“The 7-liter engine is based on a proven and robust 6-cylinder engine,” says Anna Wingren, Assistant Chief Engineer, Scania R & D. “This excellent starting point was then integrated with all the skills Scania developed in developing advanced diesel engines, using internally developed technologies. “The main targets are urban transport operators and buyers in the transport sector for waste collection and maintenance applications in modern cities – often in this type of application, weight is a challenge important and that’s why customers usually give up using the more powerful 9 or 13-liter engines. “
The control systems of the new Scania engines
The existing base engine has been improved in many aspects. All monitoring and control systems have been developed by Scania. In addition, it is equipped with a completely new turbocharger and the exclusive exhaust after-treatment system developed internally by Scania which uses only the SCR system to reduce NOx emissions. “The starting point was already extremely good, but now we have turned it into a real Scania engine from every point of view,” says Wingren. “It’s quiet, perfectly in line with Scania’s philosophy of high torque even at low engine speeds and is fuel efficient. We can therefore say that we have succeeded in overcoming the objectives we had set ourselves “. Wingren explains that the great watershed of the project was the decision by the team to use only the control systems developed internally by Scania to achieve the desired features and ensure perfect integration with the fifth generation Scania Opticruise gearbox and the SDP3 diagnosis.
New Scania 7 Liter Engines
“This choice has enabled us to eliminate the EGR system and opt for a robust fixed geometry turbocharger as in most other Scania engines,” adds Wingren. “Overall, we introduced a hundred new details, including the flywheel bell, which became necessary to adapt the engine to the interfaces with which the Scania modular system interacts”. In the typical style of Scania, the new engines offer maximum torque already starting at a speed of 1,050 rpm. In addition to ensuring excellent driveability, the lower fuel consumption contributes to lower fuel consumption. And just as in the case of larger models, the use of low friction oil also makes an important contribution to this.”
The low weight of the new Scania Engines
“Compared to the proven 9-cylinder 5-cylinder Scania engine series, which is the natural choice of numerous customers for the applications and types of operations the 7-liter engine is designed for, the weight reduction is significant and equates to approximately 360 kg, convertible in full payload. However, in line with Scania’s vehicle optimization philosophy, nothing prevents driving a 26-ton vehicle with the new 7-liter engine. “The differences compared to the 9 liter engine are significant, but for those who must often drive a fully loaded three axle vehicle, the most powerful engine and the features offered make it probably the ideal choice,” says Eng. “Take for example a distribution vehicle that starts the day with a gross weight of 18 tons, but that after the first deliveries has already been reduced to 10-12 tons. In this case it is useless to have a motor with excessively high performances, when according to Scania’s estimates it is possible to reduce fuel consumption up to 10%. Our offer always provides for the definition of the optimal solution together with the customer, based on his actual needs “. The personalization of the offer, both in terms of services and vehicle configuration based on specific needs, is the real motivation behind all Scania’s work. However, to be credible in the eyes of customers, a wide range of products is required. The fact that, just over a year after the introduction of the new generation of vehicles, Scania is already able to offer 19 Euro6 engines is further evidence of the company’s ability to deliver on its promises. “Our goal is always to help customers increase profitability, but this in turn requires a growing number of engines and cabs,” continues Eng. “It is thanks to Scania’s modular system that we are now able to offer such a large number of engines to always guarantee our customers the best possible total operating economy “.
Technique of the new Scania engines
“The 7-liter is based on a proven engine and used in hundreds of thousands of different vehicles. For this reason, it has the advantage of being modern, but at the same time widely tested and appreciated. “Four-valve technology with rods and rocker arms is more than adequate for the low revs in question,” says Wingren. “Complexity should never be an end in itself, for Scania it is essential to create added value for the customer in terms of reduced consumption, robustness and reliability, and it is in this context that this engine best expresses its potential”.
New Scania engines complete the range
As commercial director of Scania, Eng can only confirm. “With the addition of the 7-liter to the existing engine range, we are now able to offer” tailor-made “urban transport solutions for further applications, regardless of the specific needs of individual customers,” he says. “Among the various engine families now you can even choose whether your 280 hp engine should generate a torque of 1,200 or 1,400 Nm, depending on the expected load, opting for example for the 7-liter engine.
TECHNICAL DATA DC07
|Emissions treatment||Scania SCR|
|Engine brake||88 kW a 2.500 giri/min.|
|Oil capacity||24,5 litri|
|Max power||220 CV (162 kW) a 1.900 giri/min.||250 CV (184 kW) a 1.900 giri/min.||280 CV (206 kW) a 1.900 giri/min.|
|Max couple||1.000 Nm a 1.050-1.500 giri/min.||1.100 Nm a 1.050-1.550 giri/min.||1.200 Nm a 1.050-1.600 giri/min.|