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Diesel Power ftnnuj Always pressed to improve perfor- mance and quality while lowering emissions and costs, diesel engine manufacturers as a group provide a good overview of business in the '90s. This year's Diesel Power Annual pro- vides the latest news and develop- ments from many of the top suppliers. For additional information from in- dividual manufacturers, please circle the appropriate number on the Reader Service Card in this issue (or use the Fast Fax" form on page 77). Krupp MaK Maschinenbau GmbH With its range of high quality medium-speed diesel engines, Krupp MaK ranks among the world's leading marine engine manufacturers. MaK's engine program comprises six series, cov- ers a power bracket from 930 to 10,000 kW, and is tried and tested for operation on beavy fuel oil. MaK engines propel ships, drive shipboard gen- erating sets, and produce reliable power for power stations worldwide. The company has introduced DIMOS, a computer-aided mainte- nance and spare part management system that runs on PC software, enabling operators to check four areas: maintenance; material management; statistics; and budget control. For more information on Krupp MaK Circle 117 on Reader Service Card Wartsila Diesel The Wartsila Diesel Group is a mainly Euro- pean-based manufacturing group that produces propulsion systems for ships and heavy vehicles, as well as systems for marine-based electric generation and cogeneration. The company is a leading manufacturer of high speed diesel en- gines and medium speed diesel engines in the output range of over 300 kW. Wartsila R&D emphasizes heavy fuel and high pressure gas technology, emissions control, and the develop- ment of high performance, heavy duty engines with low maintenance requirements. Among the company's best selling diesels is the Wartsila Vasa 32, a medium speed engine that reportedly operates on a range of fuels, from low grade heavy fuels to natural gases. The 32 model has a patented pressure lubricated piston skirt and hydraulic tools for easy maintenance. According to the company, it has commenced production of an environmentally-conscious multi-fuel technology for floating production vessels. Wartsila representatives said that with 48 The mounting of a complete 7S50MC into the engine room of a containership, type VW1100. the company's new GD technology, natural gas and crude oil can be used as vessel fuel directly from wells. The technology was designed to provide for minimal NOx emissions due to in- creased fuel efficiency, and to reduce the opera- tional costs of a vessel by decreasing overall maintenance needs and increasing lengthening maintenance intervals. For more information on Wartsila Diesel Circle 118 on Reader Service Card MAN B&W Diesel AG MAN B&W is a wholly owned subsidiary of MAN Aktiengesellschaft, Munich, Germany, and is a leading manufacturer and designer of two- stroke and four-stroke diesel engines and turbo- chargers. MAN B&W Diesel has facilities in Augsburg and Hamburg, Germany; Copenhagen, Frederikshavn, and Holeby, Denmark, as well as more than 30 licensees around the world. In addition, MAN B&W has a service network of agencies at more than 125 locations worldwide. At Augsburg, medium-speed diesels with a power range of 450 to 18,900 kW (610 to 25, 740 hp) are manufactured, as well as spark-ignited gas en- gines and dual fuel engines with ratings ranging from 405 to 16,200 kW (550 to 22,000 hp), and sophisticated, high efficiency exhaust gas turbo- chargers for two-stroke and four-stroke engines. The latest four-stroke engine development of the well-proven medium-speed family, the 32/40, was extended by a V-version (12, 14, 16 and 18 cylinders) and now covers the power range from 2,200 to 7,920 kW (3,000 to 10,800 hp). Dual-fuel and spark-ignited gas engines have become of vital importance in view of the increas- ing availability of gaseous fuels and their excel- lent environmental compatibility. MAN B&W Diesel designs and builds such engines in close cooperation with the American engine builder Fairbanks Morse Engines, a division of Coltec Industries, Inc. Fairbanks Morse Engine will also obtain licenses for MBD's Diesel engine technology. The licensing and joint development agreements will enable them to manufacture products for supply to specific U.S. government and stationary markets in North America. Development of large medium-speed four- stroke engines has focused on improvements in economy and reliability. Emphasis was placed on the reduction of production and operating costs, and on ensuring longer lifetimes and main- tenance intervals for important wear parts. For more information on MAN B&W Circle 101 on Reader Service Card Maritime Reporter/Engineering New;
