Advanced diesel fuel injection equipment – A never ending BOSCH story

Abstract

Since the very beginning of providing fuel metering equipment for Diesel combustion engines, injection pressure is one key enabler for mixture preparation and spray performance. A second important enabler is the injection pattern, fulfilling the task to bring the fuel into the combustion chamber in the right time, with the right quality and to the right place. This paper deals with the role of injection pressure and patterns for Diesel combustion engines fulfilling upcoming ultimate requirements for developed markets. Future requirements on propulsion coming from the overall market trends especially on emission and CO2 by means of fuel consumption are discussed. As the key technology for internal combustion engines direct fuel injection in Diesel plays a major role gaining the challenging development targets like power output, gasoline noise level, lowest emission and benchmark fuel consumption at an attractive cost level. This trend is already established in Western Europe and North America followed by the Asia market and will be rolled out in the next upcoming decade.