Scania XPI - the fuel injection system of the future

12/12/2003 9:00 AM EST

Scania XPI - for extra high-pressure injection - paves the way for
emission levels beyond what is possible with today's diesel technology.
The new high-pressure injection system is being developed jointly with
US engine manufacturer Cummins. Scania XPI enables Scania to focus on
offering the best possible operating economy, while leading the market
in environmental concern, performance and driveability.

"Scania's objective is to further reduce emissions while offering the
best possible fuel economy and driveability in order to provide the
lowest overall cost of operation," says Urban Johansson, Senior Vice
President Powertrain Development at Scania. "Our successful co-operation
with Cummins to develop and produce Scania HPI, our current high-
pressure injection system, has led into the new long-term development
project on common-rail technology.

"Efficiency and environmental performance will be the main criteria for
any transport system in the future. Efficiency also speaks for the
diesel engine, which despite century-long development, still has great
untapped potential. With common-rail technology, Scania can continue to
refine the diesel engine and its combustion process well into the
2010s."

Future developments
For the next step in emission control, Euro 4, Scania has adopted two
different technologies - EGR (Exhaust Gas Recirculation) and SCR
(Selective Catalytic Reduction). This strategy makes it possible for
Scania to tailor solutions for specific conditions and applications.
Consistent development of combustion technology will enable Scania to
provide engines that meet Euro 4 emission levels with a fuel consumption
that is equivalent to that of Euro 3 engines.

High-pressure fuel injection systems like Scania HPI are the key to
meeting current emission levels. But even higher injection pressures
will be needed to reduce emissions beyond Euro 5. This will be achieved
using Scania XPI and combinations of EGR and SCR.

By that time, the emission levels from diesel engines will be so low, at
least of the exhaust components we know of today, that other issues will
take over. Concerns about carbon dioxide emissions and the greenhouse
effect will increase and concerns about the availability of crude oil
will increase the need to use the most fuel-efficient engine technology.

On Scania's homepage www.scania.com you can find a new brochure in PDF-
format on Scania's engine development philosophy.

For more information, please contact Per-Erik Nordström, Business
Communications, tel. +46 8 55385577.

Scania is one of the world's leading manufacturers of trucks and buses
for heavy transport applications, and of industrial and marine engines.
With 28,200 employees and production facilities in Europe and Latin
America, Scania is one of the most profitable companies in its sector.
In 2002, sales totalled SEK 47 billion and income after financial items
was SEK 3.7 billion. Scania products are marketed in about 100 countries
worldwide and some 95 percent of Scania's vehicles are sold outside
Sweden.

Scania press releases are available on the Internet, www.scania.com