Page 57: of Maritime Reporter Magazine (July 1993)

^OPULSION UPDATE itork-Wartsila Debuts Its New SW 38

Engine In Zwolle, The Netherlands

By Greg Trauthwein, managing editor

The new SW 38 of Stork-Wartsila esel B.V. is the first engine devel- >ed with the combined resources of e Wartsila Diesel Group. Dubbed e environmentally conscious en- ne by its makers, the SW 38 was icently introduced at Stork- artsila's plant in Zwolle, The Neth- •lands.

SW 38

Technical Data

Cylinder bore 380 mm

Piston stroke 475 mm

Speed 600 rpm

Piston speed 9.5 m/s

Piston displacement 54 l/cyl.

Mean effective pressure. 24.5 bar

Firing pressure, max 180 bar

Cylinder output 66 kW

Output range 3,960 to 11,880 kW "The SW 38 was the full develop- mental responsibility of Stork-

Wartsila, with the full support of the Wartsila Diesel Group," said

Max J. Wieringa, president and

CEO of Stork-Wartsila Diesel.

The SW 38, which has a power range of 3,960 to 11,880 kW and an output per cylinder of660 kW at 600 rpm, is available in six-, eight- and nine-cylinder in-line configurations and 12-, 16- and 18-cylinder Vee- configuration models.

The new model was conceived to replace an aging model. "The SW 38 will replace the well-known 410 en- gine, and fits fairly well between the

Vasa 32 and Vasa 46 engines," said

Henk Th. Metz, director of diesel technology, Stork-Wartsila. TheSW 38 was designed with low emissions and fuel consumption, reliability and low maintenance costs, and overall cost effectiveness in mind. The new diesel engine is reportedly the short- est, smallest and (in terms of weight) the lightest engine in its range (see chart on page 58 for specifics).

Mr. Max Wieringa, president and CEO of Stork-Wartsila Diesel, along with colleagues from Wartsila Diesel

Intl., recently introduced its new diesel engine, the SW 38. "Existing 400mm engine designs are getting old, and we know there is a big market for this engine on the marine side," said Daniel Paro, director of research and develop- ment, Wartsila Diesel International

S.A.R.L.

To reduce maintenance costs and time, the SW 38 was designed and built with 40 percent less parts than the 410, according to Mr. Wieringa.

And because of the engine's reported operational reliablity, the servicing intervals are predictable and logis- tically plannable.

While the SW 38 was designed and developed by Stork-Wartsila in

Holland, it was supported by the total Wartsila Diesel Group Research and Development network. This means proven technology were in- corporated into the engine.

For example, the anti-polishing ring in the cylinder liner for remov- ing carbon from the piston top, a solution tested in other Wartsila (Continued on page 58)

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