Page 35: of Maritime Reporter Magazine (July 1984)

wide-ranging torque possibilities make the engine ideal for high- speed craft.

SACM also remains active in development of its high-perform- ance engine range as non-mag- netic units for military applica- tions. These engines utilize a maximum of non-magnetic mate- rials for parts that are less highly stressed, while retaining magnetic materials for the more highly stressed parts that cannot be of non-magnetic material without sacrificing reliability.

STORK-WERKSPOOR

Circle 36 on Reader Service Card

Stork Werkspoor Diesel B.V., known as SWDiesel, with head- quarters in Amsterdam, is the leading diesel engine manufac- turer in the Netherlands, with a production program covering an output range from 300 to 16,200 kw (400 to 21,725 bhp). This pro- gram consists of five models of four-stroke, medium-speed, heavy- duty engines, all capable of oper- ating on heavy fuel.

The recently introduced SW280 engine type, fully adapted to the demands of the present and future market, is offered in six-, eight-, and nine-cylinder in-line configu- rations, and in a 12-cylinder

V-form version, with outputs ranging from 1,465 to 3,530 kw (1,965-4,735 bhp). Following its introduction, the SW 280 attracted much attention from the interna- tional marine world, resulting in the receipt of a large number of orders.

Designed using the most mod- ern computer-aided design and testbed facilities, the SW280 has proved to be both a sales and op- erational success. All types have been installed for main propul- sion, auxiliary power, and various other applications.

Special attention in Stork's re- search program was given to the reduction of fuel consumption, re- sulting in lower figures for the

SW280, F/SW240, and DR210 en- gines. R&D on the well-known

TM410 and TM620 engine types, of which more than 650 have been delivered, has also been successful in meeting market demands for reduced fuel consumption; a reduc- tion in fuel consumption of up to eight percent can be achieved. On a number of 18TM410 engines, a specific fuel consumption as low as 185 grams per kw hour has been recorded under full-load conditions.

These reductions in consump- tion have been achieved without increasing the combustion pres- sure. Further reductions are fore- seen in the near future. This will be achieved by some increase in the maximum cylinder pressure.

Major improvements on these en- gines include the application of new high-efficiency turboblowers, and valve timing in injection sys- tems to give higher injection pressures.

Operation on heavy fuel is one of the strongest points of SWDie- sel engines. The poorest quality fuels have been tested in TM and

SW engines. When installed as auxiliary engines, the SW models can use the same heavy fuel as the main engine.

Over the past few years, SWDie- sel has set up offices in New Orle- ans, Seattle, and Washington, D.C. in an effort to expand its sales in the U.S. market. SWDiesel Gulf

Inc. (Stork-Diesel) in New Orleans is a member of the SWDiesel

Group.

During the past five years,

SWDiesel has booked orders for ships under American manage- ment for more than 400,000 bhp, including 10 TM410 eight-cylinder engines ordered by the Quincy

Shipbuilding Division of General

Dynamics for installation in the five maritime prepositioning ships (T-AKX) being built for the U.S.

Navy.

SULZER

Circle 37 on Reader Service Card

Sulzer Brothers Limited of Win- terthur, Switzerland, this year cel- ebrating its 150th anniversary, is a world leader in diesel engine de- sign, development, and produc- tion. Sulzer's latest series, the

RTA superlongstroke engine, has now accumulated more than 36,000 hours of at-sea service experience (as of May 1 this year), in the 45 ships already delivered, and is well under way to proving its high reliability and low specific fuel consumption.

The outstanding fuel economy of

RTA engines has been fully con- firmed by the considerable test- bed experience gained from 3,500 running hours in long-term optim- ization tests with 10 engines, which have been complemented by the more than 125 successful shop trials.

As a result, the RTA diesel en- gine series is now able to offer even better optimum combinations of very low specific fuel consump- tion and low running speed that, together with the benefits derived from unique RTA design features, give: reduced brake specific fuel consumption from optimum en- gine tuning; better propulsive ef- ficiency through lower engine speeds offered by the wider layout field; and closer optimization to ship requirements by increased overlap of the layout fields from the six RTA cylinder bore sizes.

The outstanding fuel economy of

RTA engines can now be improved even further by incorporating the new Sulzer Efficiency Booster sys- tem. This recovers surplus ex- haust gas energy and thereby di- rectly raises engine brake thermal efficiency, up to a remarkable 53 percent maximum in the largest- bore engines, corresponding to a minimum specific fuel consump- (continued on page 38)

Circle 262 on Reader Service Card

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RECYCLER

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Convert waste diesel crankcase oil into fuel. Keeps storage tanks clean, extend service life of replaceable filter elements.

July 1,1984 Circle 113 on Reader Service Card 37