Further Development of the Bergen B3X Engine Platform
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Starting in 2011 Bergen Engines began the development of its first new engine platform for a decade, the B33:45. The project was kicked off in April 2011. By the end of 2013 the prototype engine was started up, the official launch took place in 2014 and the first of 39 marine engines sold.
Plans for a Bergen B3X platform engine with a 320 mm bore engine already existed in the early 1970s, however, a bigger, HFO-fuelled four-stroke medium speed engine was not of interest for typical Bergen marine applications until the turn of that decade. Analysing the market situation at that time, the preliminary design study concluded that an engine with a 320 mm bore and a 360 mm stroke, operating at 720 or 750 rpm and with mean effective pressures of 18-20 bar, translating into power outputs of around 330 to 400 kW/cyl. would be the best option for direct mechanical propulsion and auxiliary generator set applications. As the first engines equipped with ABB’s new “4P” turbocharger series...
KeywordsCylinder Head Engine Block Engine Family Prototype Engine Medium Speed Engine
The authors would like to thank all colleagues at Bergen Engines for their commitment and great efforts and without whom neither the development of the generation B type engines nor this work would have been possible.