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Propulsion for the U.S. Navy's new 170-foot Cyclone Class Coastal Patrol Boat (PBC) will be supplied by Paxman Valenta 16RP200CM engines. Each Bollinger-built PBC will be fitted with four units. For use in conventional subma- rines, offshore oil exploration and deep-water research applications, the closed cycle system (CCS) condi- tions exhaust gases from diesel en- gines down to a water depth of 3,000 meters while maintaining the prime movers' efficiency. WesTech Gear Corp. which holds the exclusive U.S. licensing agreement with Cosworth Deep Sea Systems, Ltd., to market, manufacture, install and service the system, reports that the CCS allows for the first time a diesel to provide both significant underwater power generation and propulsion. GE Electric Transportation Sys- tems offers two lines of diesels, the GE FDM and Alco 251. For direct drive marine propulsion the GE FDM 12 produces 3,000 hp and the GEFDM16 produces 4,000 hp, both at 1,050 rpm. The GE Alco 251 is available in six-, eight-, 12-, 16- and 18-cylinder versions at rotational speeds from 750 to 1,200 rpm, and power from 703 to 3,725 hp. Dorman Diesels Ltd. recently launched 12- and 16-cylinder V-form Sea King models. The new V-form engines compliment the manufac- turers' range of in-line marine die- sel engines, which were launched in 1984. The Sea King marine diesel power range is 300 to 1,970 bhp. Finally, Lister-Petter, which manufactures air- and water-cooled industrial diesel and natural gas engines, was recently selected by Iveco Aifo as its master distributor in the U.S. for its marine diesel engines up to 1,200 hp. Diesel-Electric Propulsion AC propulsion and power plants from ABB Stromberg Drives have been installed on a number of cruise liners. They include CCL's 70,000- grt Fantasy, Ecstasy, Sensation, Fascination and Imagination, each with two 14-MW propulsion drives, the Crystal Harmony, with two 12- MW propulsion drives, operated by Crystal Cruises, and the Statendam, Maasdam and Noordam, with 12- MW units, for Holland America Line. These nine orders have estab- lished AC propulsion as viable in commercial shipping. The Industrial Systems Division of Siemens Electric Ltd. supplied the integrated electric propulsion system for two 300-passenger/85- vehicle ferries for British Colum- bia. The power plant consists of three brushless 1,700-kW Bergen Diesel gensets. The 4.16 kv sup- plied by the gensets is distributed by a Siemens medium voltage switchboard to four900-kW Siemens propulsion motors, which each drive a Z-drive propeller. Siemens also supplied a turnkey electrical equip- ment package for the new Canadian Louis S. St. Laurent icebreaker. It included electric drives, generators, switchgear and automation. Gas Turbines A new advanced marine gas tur- bine propulsion system for use in U.S. Navy ships is under joint devel- opment by Westinghouse Electric and Rolls-Royce, based on the Rolls- Royce RB211 gas turbine. The two companies will undertake the ad- vanced development of a 19,685-kW intercooled recuperative (ICR) gas turbine engine system expected to improve fuel consumption by 30 per- cent. Westinghouse is responsible for the propulsion system integra- tion, systems engineering and test- ing and overall engine performance. Rolls-Royce will handle the design, testing and performance of the gas turbine. The development program is expected to take four years. GE Marine & Industrial has been the beneficiary of several recent or- ders from the growing fast ferry and passenger vessel market. A popular choice in the naval ship propulsion market, with more than 400 instal- lations worldwide, the GE LM2500 was recently selected for installa- tion on an Italian fast ferry. The Aquastrada from the Rodriquez Cantieri Navali will have a single 27,880-hp LM2500 gas turbine mod- REDUCE STRESS & LIVE LONGER vf. || Protect Valuable Equipment with ji' jr^ | Advanced Damping Technology \ of Holset Resilient Couplings Wm 1 | Jft' \ * Absorb Vibration & Shock Loads ap " | ^^ • Tune Out Resonant Vibration B Jr \A • Long Life, Heavy Duty Design PP • No Lubrication. Ever! Hl^B & *** Holset's Vibration Engineering pp, JM| f MJ group offers a precise study of your k ^ 0?: complete drive system • Holset m^^ . ^HT . Illy combines 43 years experience with the ^Btajk fltek Vp| J -Jr latest analytical techniques to insure Q^Vp ^m I At. your system is safe from damage by jk I f JKKr torsional vibration •> Services range from ^ • system design consulting and computer analysis to on-site measurement vibration • Holset also offers custom engineered couplings, utilizing their proprietary rubber compounds, for your specific requirements • Holset specializes in practical solutions to torsional vibration problems in most industries, including: diesel & marine drives, electrical drives, metal working mills, mining, petrochemical, and utilities. fe'ft 07 Wf.jy Js ' Call the vibration engineering experts today 1-800-852-6648 Holset Engineering Co. Inc. Suite 500, Dept. SH 1320 Kemper Meadow Drive Cincinnati, Ohio 45240 FAX: 513-825-2967 September, 1992 Circle 229 on Reader Service Card 35
