Compacted graphite iron - A material solution for modern diesel engine cylinder blocks and heads

摘要

The demands for improved fuel economy, performance and emissions continue to pose challenges for engine designers and the materials they choose. This is particularly true in the rapidly growing commercial vehicle sector in India. As road infrastructure improves, and as the need for goods transportation and personal mobility increases, fleet owners will respond by demanding state-of-the-art heavy-duty diesel engines that can carry heavier payloads while providing optimal fuel efficiency. Based on the European experience, the primary path to achieving improved engine performance is to increase the Peak Firing Pressure (P) in the combustion chamber. In max the European commercial vehicle sector, P has increased max from approximately 180 bar in 1999 to 220～240 bar in 2007.