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WORKBOAT ANNUAL Higman Towing Goes Green With Engine Selection At 72 x 27 x 8 ft. (22 x 6.7 x 2.4 m), with a pair of Cummins KTA38-MO main engines rated at 750-hp each and turning 72 x 54- in. wheels through Twin Disc MG- 5202 6.10:1 gears, Higman Towing's vessel is, at first glance, just another towboat. A closer look, however, shows how the Orange, Texas-based Higman Towing is getting ahead of the game by operating a new genera- tion of towboat that is designed to meet future environmental regula- tions. The vessel incorporates a combi- nation of established and demon- strated technology, and the new boat's engines are designed to eliminate waste in the lube oil sys- tem and dramatically reduce exhaust emissions. Building at Hope Services in Dulac, La., to an in-house design, the boat will be fitted with the latest in marine diesel technology. Starting with Cummins' V-12 KTA38-MO engines, two options have been added to the highly tuned base. Working with Cummins, Alfa Laval has developed the Eliminator Filter system that effectively eliminates the need for replaceable components in the lube oil system. Taking the place of seven con- ventional filters, the Eliminator Filter unites two proven Alfa Laval technologies — a self-clean- ing full-flow filter that removes 85 to 90 percent of particulates over 20 microns and a disc stack cen- trifugal separator that removes particles down to two microns or less. Emission Reduction In addition to engine design modifications to reduce emissions, Cummins has worked with Englehard Corp., a leader in emis- sion control technology, to develop a "soot trap" that is located in the muffler to provide after treatment to virtually eliminate particulates, carbon monoxide and hydrocar- bons from the exhaust. The system utilizes a ceramic fil- ter coated with a catalyst devel- oped through the joint efforts of Cummins and Englehard. These "off the shelf' Cummins compo- nents significantly reduce pollu- tants to provide a safer and clean- er working environment and greater operator profitability. A third lube oil management option is available for this engine that can even further reduce waste. Centinel is an electronically con- trolled system which actually removes small amounts of lube oil from the engine on a monitored basis. Removed oil is blended with fuel and burned, and at the same time, the lube oil in the engine is replen- ished from a make-up tank. This system eliminates the need to change oil and the resulting shut down and disposal costs. Manufacturer's research has shown that the typical operating costs on a KTA38-MO engine for lube oil replenishment together with used oil and filter disposal averages $1.3 per operating hour. With the Eliminator and Centinel systems in place, this is reduced to only $0.37 cents per hour. For more information Circle 45 on Reader Service Card No DRAIN No RAIN. 4,000 hours between oil changes! iSiSft . tM I ft m 11 Now it's easy with the new CENTINEL™ Advanced Engine Oil Management System, an innovation that can save you a lot of time and money, hour after hour. How CENTINEL Works: CENTINEL is an onboard continuous replacement system that operates according to the engine's actual duty cycle. Using proprietary electronic controls, the CENTINEL system monitors fuel rate and replaces oil at rates engineered for continued reliability and durability of the engine. CENTINEL's continuous oil replacement process stabilizes engine oil quality and allows oil and filter change intervals to be extended to unprecedented levels. With CENTINEL, you can: • Extend oil change intervals to 4,000 hours • Extend oil filter change intervals to 1,000 hours • Reduce oil and oil filter disposal costs • Reduce downtime • Increase productivity and profitability Oil Control Valve Low Oil Level Sensor Vehicle Fuel Tank Fuel/Lube Oil Blend to Engine CENTINEL is available exclusively through Cummins distributors and dealers. For details, contact your nearest Cummins location or phone 1 -800-DIESELS (1 -800-343-7357). ©1997 Cummins Engine Company, Inc., Box 3005, Columbus, IN 47202-3005, U.S.A. Circle 248 on Reader Service Card 80 Maritime Reporter/Engineering News
