Scania industrial engines are ready for Stage IV and Tier 4 Final with only exhaust gas recirculation (EGR) and selective catalytic reduction (SCR) technology and no particulate filter. Scania engine management and emissions control ensures an attractive blend of customized performance and long-term operating economy. Versions are available that meet all of today’s emission steps, including Stage II and IIIA.
Scania's highly regarded engines are developed at the Scania Technical Center in Södertälje, Sweden, where advanced R&D is conducted on engine management and exhaust after treatment. Industrial engines are developed in parallel with engines for trucks and buses, complying with emission legislations several years before they take effect. Stage IIIB/Tier 4 Interim engines, for example, were ready already in 2009.
Clean and refined combustion technology means that Scania manages the very stringent Stage IV and Tier 4 Final regulations that apply from 2014 without the need for a particulate filter. Scania has many years’ experience with EGR and SCR from trucks and buses.
Each of the three engine ranges has the same installation dimensions irrespective of emission level. The installation remains unaffected, which significantly reduces the efforts required from OEMs that are active on the global market.
Customized Performance
Important factors in the industrial engine segment are high uptime, generous torque at low revs, good fuel economy and prompt engine response. These demands are all fulfilled with engines from Scania.
Scania’s philosophy is to secure full control of all strategic steps in development and performance control. All development is done in-house, including engine management, fuel injection and emission control. This provides exceptional flexibility in tailoring each installation precisely to its task.
Scania can thus ensure that each individual installation meets all demands and targets for performance and fuel economy, as well as for consistent environmental performance, robustness and convenience of operation.
Modular Benefits
Scania’s modular philosophy is implemented throughout the engine range. This greatly facilitates servicing, repairs and parts supply, since the engines all share the same cylinder design, featuring for instance separate cylinder heads and replaceable liners and many of the moving parts. If you know one Scania, you know them all, regardless if it is an inline 9- or 13-liter or a 16-liter V8 engine.
Long Maintenance Intervals
Maintenance and oil-change intervals for the industrial engine range are a full 500 h. Shared components and systems between the different engine series reduces costs for parts stocking and maximize availability. In addition, training of staff is facilitated by the commonality between the engine series.
Scania EGR and SCR
With EGR, a small amount of exhaust gases is returned to the intake of the engine, diluting the intake air and reducing the oxygen concentration. This will reduce combustion temperature and emissions of both particulates and NOx. NOx is a generic term for mono- and di-nitrogen oxides (NO and NO2), which are produced during combustion.
The main function of the SCR system is to further reduce NOx emissions. SCR is based on the injection of a urea solution (AdBlue or DEF [Diesel Exhaust Fluid]) in the exhaust system. Consumption of the urea solution is around 5% of fuel consumption for Stage IV and Tier 4 Final NOx-levels.
Key Characteristics
- Stage IV and Tier 4 Final compliance without particulate filter
- Scania EGR and Scania SCR for emission control (Stage IV and Tier 4 Final)
- Common-rail fuel injection Scania XPI (extra high pressure injection) with all-electronic injection control
- Scania engine management for high-precision control of combustion and aftertreatment, as well as easy adaptation to different applications
- Scania Saver ring in cylinder liner prevents coke build-up at top of piston
