VOLVO RAISES THE BAR IN DIESEL DESIGN

摘要

Volvo's next-generation diesels will use a 2,500bar commonrail system featuring integrated pressure sensors. The four-cylinder engines were designed in-house. The higher rail pressure and improved control should increase combustion efficiency and reduce emissions. Volvo claims that this is the world's first application of the injection system, supplied by Denso. Volvo's vice-president of powertrain engineering, Derek Crabb, said: "Each injector has a small computer on top which monitors injection pressure. The system makes sure that the ideal amount of fuel is injected during each combustion cycle." The 2,500bar rail pressure should result in more rapid and more complete combustion, helping to reduce NOx and particulates.