MAN Diesel extends its large-bore, four stroke range

摘要

MAN Diesel has recently announced a further extension of its line-up of large bore, four-stroke gas engines.rnThe new engine is the S1/60G, which like its 51/60DF dual-fuel stablemate is derived from MAN Diesel's type 48/60 diesel engine platform.rnThe new engine uses a distillate fuel pilot injection system to achieve reliable, stable ignition of lean air:gas mixtures in a large-bore, open combustion chamber.rnAs a result, the new gas engine has one of the highest power densities in the four-stroke gas engine field as well as low emissions of oxides of nitrogen (NO_X) and high fuel efficiency.rnThis choice of gas ignition technology also alleviates one of the main weaknesses of spark-ignited gas engines, namely the relatively short exchange intervals of even the best spark plugs.rnBy contrast, the liquid-fuel pilot ignition system of the 51/60G gas engine exhibits the considerably longer service intervals typical of diesel engine fuel-injection equipment.