Page 27: of Marine News Magazine (August 2, 2012)
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intended for pleasure craft. One thing that hasn?t changed over the years is SCANIA?s engine philosophy that is characterized by time-honored fundamentals that include a high percentage of common parts between the two series, high reliability, longevity, low fuel consumption and ? of course ? featuring low emissions. The amount of common parts ? or the so-called SCANIA module concept ? includes, but is not limited to, pistons, cylinder liners, cylinder heads, gaskets, lters and unit- pump elements at the injection technology. The engines ful ll all existing worldwide current emission legislations. Each product intended for a marine application, passes a series of stringent tests which can run from 4 hours to 2 days. The company supplies the complete drive-line for ship propulsion ? engine, transmission, instruments ? from one source. Couplings, shafts and propellers are assembled from chosen, strategic partners. 13 AND 16-LITRE ENGINES FOR PROPULSION AND AUXILIARY Scania?s engine range illustrates the essence of maximum up-time, proven reliability and outstanding operating economy. Built into the compact and powerful package is Scania?s modular product system, which simpli es servicing and parts management, facilitates individual speci cations, as well as expediting volume production. Power in the new in-line DI13 is available from 294 to 551 kW at speeds of 1,800 to 2,300 rpm for main-drives and outputs from 323 to 426 kW with speeds of 1,500 to 1,800 rpm?s for on-board gensets. SCANIA INTRODUCES ITS NEW DI16 MARINE DIESEL ENGINE First showcased at this year?s Seawork Show in the United Kingdom, the new DI 16 diesel engine was especially developed for applications in workboats, patrol craft and yachts, too. With this entry, Scania hopes to consolidate its position in the marine market segment. The turbocharged and aftercooled engine is available as 8-cylinder, in V-90 degrees con guration. With 130 mm bore and 154 mm stroke, it features a displacement of 2.04 litres per cylinder. With the total displacement of 16.32 litres (a displacement increase of around 5% compared to the former DI 16 marine drive), the engine is capable of developing an output of 735 kW (1,000 HP). With a nod towards this impressive power increase, Robert Sobocki, Scania Vice President Engines, told MarineNews, ?We are now highly competitive with engines well above 16-litres.? Indeed, the torque ratings of up to 3.340 Nm are particularly high for this output class, ensuring robust performance even at low revolutions, while allowing operations at favorable revolutions in all conditions, including heavy seas and high loads.Individual cylinder heads with 4 valves per cylinder promote both easy maintenance and fuel economy. According to Scania, this new DI 16 engine meets the emission standards of IMO II, EU Stage IIIA and US Tier 2. The engine is equipped with a Scania developed Engine Management System (EMS) in order to ensure the control of all aspects related to engine performance. Beyond this, the injection system is based upon electronically controlled PDE unit injectors that emit low exhaust emissions, good fuel economy and high torque even at low revolutions. SUMMING UP A WINNING MARINE PROPULSION STORY According to Scania, their newest marine marine entry is a compact engine with easy connections to auxiliaries, all speci cally designed for easy access and servicing. Scania?s V8 engine traditionally meets all of these requirements thanks in part to itscompact vee-design, which reduces the overall length of the unit. Ancillaries can therefore be ef ciently accommodated inside the ?footprint? of the engine.Scania?s-Saver ring, placed at the top of each cylinder liner, reduces carbon deposits on the edge of the piston crown and reduces cylinder liner wear. Hence, and despite higher performance and tighter emissions regulations, Scania has nevertheless been able to raise maintenance and oil-change intervals to 500 hours. The new DI 16 diesel engine arguably has all the bases covered, especially for traditional workboat applications. New ideas continue to evolve from this 120-year old rm. And, given today?s onerous regulatory and tricky commercial environments, that?s not a moment too soon. Built to last: The new DI16 features an impressive max torque of 3.340 Nm at 2.000 rpm. Photo: Scaniawww.marinelink.com MN 27