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100 years with industrial engines from Scania

In January 2006, emission legislations Stage IIIA and Tier 3 come into force. Scania is prepared to meet these standards with a highly efficient modern engine range.

Scania is constantly developing engines and technologies to meet different emission legislations for trucks, buses and industrial and marine engines around the world. The present challenge for industrial engines is to meet the European Stage IIIA and the U.S. Tier 3 regulations which are valid as from January 2006. 

“With our customers demand for compact engines in mind, we decided at an early stage to focus on further improving the combustion process, instead of any after treatment system,” declares Mr Yngve Skog, Sales Manager at Scania Industrial & Marine Engines.

A major advantage in the development was Scania’s modular engine range. The fact that several engines share the same components such as cylinder heads, pistons, camshafts, unit injectors etc., made it possible to concentrate the efforts to a limited number of components and refine them to a great extent.

“We realised that we could reach the desired emission levels with minimum complexity. We do not need to use EGR or an after-treatment system such as SCR. Instead, we focused on the source, that is the combustion process.”

The engineers equation was that the more optimised the combustion, the lower the emissions. The solution turned out to be a revised combustion chamber, a refined angle of the unit injectors and an improved camshaft.

Today, two Scania engine families comply with the Stage IIIA/Tier 3 standards. It is the new 9-litre engine with 5 cylinders and the 12-litre engine with 6 cylinders.

“Besides a new combustion chamber, etc., these engines are also equipped with Scania’s own Engine Management System,” Mr Skog explains. “This electronic management system makes it possible, for example, to ensure optimum combustion.”

Scania EMS monitors and processes thousands of pieces of vital data every second and evaluates the information to adjust injection timing and the amount of fuel in-jected to ensure optimum combustion and fuel consumption in relation to operating conditions. It also makes it possible to program each individual engine to meet the customer’s specific demands for engine revs and workload. 

Basic facts

DC9 EMSTurbocharged, charge-cooled (air-air), 4-stroke diesel engine with unit injectors and Scania EMS (Engine Management System).

Configuration 5-in-line

Displacement  8.9 litres

Bore 127 mm

Stroke  140 mm

Weight excl. oil and water 887 kg

Output range all-speed engines177kW (240hp) – 243kW (330hp) at 2200 r/min

Dimensions (mm)H (W) L: 1116 (811) 1275

EnvironmentThe DC9 EMS complies with Directive 2004/26/EC Stage IIIA and US EPA Tier 3 regulations. It is also available as compliant with Directive 97/68/EC Stage II.

DC12 EMSTurbocharged, charge-cooled (air-air), 4-stroke diesel engine with unit injectors and Scania EMS (Engine Management System).

Configuration 6-in-line

Displacement  11.7 litres

Bore 127 mm

Stroke  154 mm

Weight excl. oil and water 995 kg

Output range all-speed engines

243kW (330hp) – 330kW (450hp) at 2100 r/min

Dimensions (mm)H (W) L: 1491 (1154) 1716

EnvironmentThe DC12 EMS complies with Directive 2004/26/EC Stage IIIA and US EPA Tier 3 regulations. It is also available as compliant with Directive 97/68/EC Stage II.

For further information, please contact:

Ms Annika Stenlund

Scania Industrial & Marine Engines

Tel: +46 8 553 899 90

Fax: +46 8 553 898 12

Email: annika.stenlund@scania.com

Scania is one of the world's leading manufacturers of trucks and buses for heavy transport applications, and of industrial and marine engines. With 30,000 employees and production facilities in Europe and Latin America, Scania is one of the most profitable companies in its sector. In 2004, sales totalled SEK 56.7 billion and income after financial items was SEK 6.0 billion. Scania products are marketed in about 100 countries worldwide and some 95 percent of Scania’s vehicles are sold outside Sweden.