Page 34: of Maritime Reporter Magazine (October 15, 1980)

Two of these Enterprise RV-12 engines will power each of three bulk carriers under construction at Levingston yard.

Diesel Power

Review (continued from page 33) ing Company for Levingston Fal- con I Shipping Company. And twin RV-16s, each rated at 9,100 bhp, will propel each of the three catamaran tugs that Halter Ma- rine is building under subcontract from Bethlehem-Sparrows Point, who is building the barges for the three tug/barge units.

Delaval is also supplying the diesel generators for the three

American President Lines con- tainerships under construction at

Avondale Shipyards. Designed to operate on heavy fuel, these gen- erators are 2,500-kw DMR46, in- line medium-speed units.

Wartsila Diesel Division

One of the leading manufac- turers of medium-speed diesel en- gines is the Wartsila Diesel Divi- sion, which today includes Nohab

Diesel AB, Trollhattan, Sweden; the Vasa Factory in Vasa, Fin- land; and the diesel engineering department of the Turku Ship- yard in Turku, Finland, which manufactures heavy medium- speed engines and low-speed die- sels under license.

The Division belongs to the

Wartsila Group, which is one of the biggest privately owned en- terprises in Finland with 14,000 employees and production plants at 12 different sites all over the country, and is one of the world's leading shipbuilders, concentrat- ing on icebreakers, car/passenger ferries, and cruise liners.

Early in 1980 Wartsila Power,

Inc. was established in New Or- leans, primarily to service the close to 200 Nohab F-type engines that are in operation in North

America, as well as to promote the sale of Nohab engines and introduce Wartsila-Vasa engines.

Nohab Diesel AB follows a long tradition in designing, developing, and manufacturing diesel engines.

During an 80-year period, Polar and Nohab engines have been produced in a wide range of dif- ferent engine types, but since 1969 Nohab has concentrated on developing a medium-speed en- gine series with only one cylinder size throughout. The F-type en- gine is a 4-stroke, trunk type diesel with a bore of 250 mm and a stroke of 300 mm. During the fall of this year the next devel- opment step, the F30 generation, is being introduced in the North

American market.

The design parameters of the new F30 engine were governed by the following requirements: high service reliability, foolproof systems, installation simplicity, and wide exchangeability of en- gine components with respect to all F-type engines delivered dur- ing the years.

Diesel engine production at

Wartsila-Vasa in Finland began in 1955 when the factory started to manufacture auxiliary engines under license. The design of a die- sel engine of its own began in the late 1950s, and the first engines of the Vasa 24 type were mar- keted in 1960. To date, the Vasa factory has delivered more than 1,900 engines.

The main product at the Vasa factory today is the Vasa 32, which is a heavy-fuel engine with a bore of 320 mm and a stroke of 350 mm, with a maximum out- put of 5,760 kw (7,725 bhp) in the speed range of 720-800 rpm. The

Vasa 32 is produced in 4-, 6-, 8-, and 9-cylinder in-line versions, and in 12-, 16-, and 18-cylinder

V engines. It is intended primar- ily for marine propulsion and land power generation, but has also found a market for auxiliary pur- poses, especially when the auxil- iaries are to run on the same fuel as the main engines.

Serial production of the Vasa 32 was started in 1978, and today more than 100 engines have been delivered for marine production and auxiliary purposes in vessels built in Norway, Sweden, Ger- many, Holland, Japan, South Ko- rea, and Finland.

Wartsila's latest development is the Vasa 22HF engine, which is also a heavy-fuel engine capable of burning MFO (1,500 Sec. Rl).

This engine has a bore of 220 mm and a stroke of 290 mm, and has a per cylinder output of 150 kw (200 bhp) at 1,000 rpm. Cylinder numbers from 4 to 16 cover an output range from 600 to 2,500 kw (805 to 3,350 bhp). The first engines of this new design will be delivered in 1981.

Waukesha Engine Division

Within the past year, Dresser

Industries' Waukesha Engine Di- vision has delivered units of its new 9^-inch bore series marine engine for several applications.

These include generator service for a U.S. dredge and a North

Sea offshore platform, as well as for propulsion duty in a Rhine

River barge.

The new 6- and 12-cylinder ma- rine diesel of 232 mm bore with maximum bhp ratings of 1,021 and 2,042, respectively, at 1,215 rpm, are available in either tur- bocharged and intercooled, or na- turally aspirated configurations.

Typical standard equipment in- cludes heat exchanger and oil cooler with removable tube bun- dle for ease of maintenance; pre- lubrication system for reliability; shielded high-pressure fuel injec- tion lines for safety; and variable fuel injection timing for smooth operation at variable speeds.

The 6-cylinder engine, Model

F3335DSIM, has a bore and stroke of 9.125 by 8.5 inches (232 by 216 mm) and a displacement of 3,335 cubic inches (54.6 liters).

The 12-cylinder Model L6670DS-

IM has the same bore and stroke and a displacement of 6,670 cubic inches (109.3 liters).

The installation in the Army

Corps of Engineers hopper dredge under construction at Avondale

Shipyards involves three Wau- kesha VHP6700DSIM Enginator® generating sets, which utilize the

L6670DSIM engines. These are the first Waukesha engine/gen- erators to be installed in a U.S. (continued on page 36)

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