Scania's New DS14 Diesel Engine

A new model of a turbocharged direct-injection diesel engine has been developed to meet present and near-future power needs for heavy-duty trucks. This paper gives a full description of the new V8 design with special emphasis on the turbocharging system including exhaust manifold arrangement and valve timing. It also covers other design features, such as Scania's unique oil filtering system, the durable cylinder head sealing arrangement, and the accessory drive. Finally, the paper deals with aspects of the development and testing program that was undertaken to attain an economic and virtually smoke-free diesel engine of high durability and reliability.