Goods transport by road is increasing every year, and is projected to grow by 50 percent in Europe until 2030. Emissions from truck engines have been reduced sharply in recent decades, and development continues. For example, between 1970 and 2000 Scania halved fuel consumption per tonne-km for truck transport. 
 
EU emission limits are being tightened up gradually and by 2020 emissions must be reduced by a further 20 percent. Scania aims to go even further and to reduce carbon dioxide emissions per tonne transported by 50 percent during this period.
 
Truck manufacturers are working on a variety of areas to achieve environmental goals, and more efficient engines are an important part of this.

For several years now, Opcon has worked together with engine manufacturer Cummins-Scania JV to develop new eco-friendly engines for Scania and Cummins. A stator, developed and manufactured by SEM, a member of Opcon’s Engine Efficiency business area, is a core component of the new engine's XPI fuel injection system. This system simultaneously provides better performance and lower emissions of harmful substances. 

XPI, which means extra-high pressure injection, features exceptionally high injection pressure - up to 2400 bar and with a typical working pressure of 1800 bar - and reduces emissions so that engines meet the increasingly stringent emission requirements of Euro 5, and Euro 6 concerning particles and NOx. Euro 5 comes into force in the EU on 1 January 2011 for the registration and sale of new vehicles.

Components supplied by SEM are used in fuel injection systems in the engines of both heavy trucks and buses.
 
SEM will deliver significant volumes to Cummins-Scania JV up to 2015. A completely new process line has been built for production of core components at the Engine Efficiency development and production center in Åmål, an investment of nearly SEK 60 million.
 
In the summer of 2009 the first test series was delivered, in the autumn of 2010 production was gradually increased and in 2011 series production started.
 
SEM supplies components to Cummins engine plants in Juarez, Mexico, in Columbus, Indiana, USA, and to Cummins-Scania XPI Manufacturing LLC in Södertälje (formerly Saab’s engine plant). They produce injector and pump systems for engines used in Scania trucks.
 
A stator is a type of solenoid that acts as an opening and closing valve. Electrical current is sent through a coil and provides magnetic force that is converted into movement, a technology area where Opcon and SEM have extensive experience.