Page 34: of Maritime Reporter Magazine (July 1997)

DIESEL POWER UPDATE •

Tel: +49 821 3220

Fax: +49 821 3221655

Werner Haselboeck

Product(s): DEfls, ms); GEN

Man B&W Diesel A/S-Alpha

Diesel

Niels JuelsVej 15

DK-9900 Frederikshaun, Denmark

Tel: +45 96 20 44 00

Fax: +45 96 20 40 30

E-Mail: [email protected]

T. Klingenberg

Product(s): DEfls, ms)

MAN B&W Diesel A/S, Holeby 4913 Holeby, Denmark

Tel: +45 54693386

Fax: +45 54693040

Peter Dan Petersen

Product(s): DE(ms); GEN

Mitsubishi Heavy Industries,

Ltd. 5-1 Marunouchi 2-chome (hiyoda-ku, Tokyo, lapan, 100

Tel: +81 3 3212 9080

Fax: +81 3 3212 9779

Yusuru Ichimasa

Product(s): DEfls, ms); GEN

IOGGEB TECH TALK #1

A Technical Infomation Series From Alaska Diesel Electric

How nodular iron pistons make a Lugger your best engine value.

MTU Friedrichshafen 88040 Friedrichshafen, Germany

Tel: +49 7541 90 2817

Fax: +49 7541 90 2724

E-Mail: [email protected]

Burkart Feurer

Product(s): DE(hs); GEN

N

Northrop Grumman

Corporation 401E. HendyAve.

P. 0. Box 3499

Sunnyvale, CA 94088-3499

Tel: (408) 735-2886

Fax: (408) 735-4419

Jim Gilbert

S

S.E.M.T. Pielstick 2, Quai de Seine, BP n° 75 93202 Saint-Denis Cedex, France

Tel: +33 148097600

Fax: +33 148097878

M. F. Hylander

Product(s): DE(ms, hs)

STN Atlas Elektronik GmbH

Behringstrasse 120

D-22763 Hamburg, Germany

Tel: +49 40 8825 2720

Fax: +49 40 8825 4102

R. Swoboda

Product(s): GEN

Stork Services B.V.

Klompenmakerstraat 71 3194 DD Hooguliet RT, the Netherlands

Tel: +31 10 2310555

Fax: +31 10 4163842

Michel Kurzer

Product(s): DEfls)

U

Ulstein Bergen A.S.

P.O. Box 924 5002 Bergen, Norway

Tel: +47 55 199000

Fax: +47 55 199104

Magnus Bernson/Odd M. Horgen

Product(s): DE(ms); GEN

Volvo Penta of the Americas 1300 Volvo Penta Dr., Chesapeake, VA 23320

Tel: (804)436-2800

Fax: (804) 436-5150

Ed Monacchio

Product(s): DE(hs)

W

Wdrtsild NSD Finland Oy

Marketing Communications Center

P.O. Box 252, FIN-65101 Vaasa, Finland

Tel: +358-6-3270

Fax: +358-6-327-1373

Wdrtsild NSD Switzerland Ltd.

P.O. Box 41 , CH-8401 Winterthur, Switzerland

Tel: +41 52-262-4922

Fax: +41 52-212-4917

Cross section of the unique one piece nodular iron piston from a 325-490 HP

Lugger L6125A.

The heart of a diesel is the piston. It's design and ability to withstand intense heat and pressure is critical to your vessel's operation.

Lugger 125, 140 and 170 series diesels from 400 to 1300 horse- power are the only engines in their class with one piece, nodular iron pistons. This metallurgical break- through gives you more power, longer engine life and lower fuel costs than engines with aluminum pistons.

Here's how: • One piece design eliminates failures associated with two piece pistons. 1. Combustion chamber with centered fuel injection point thoroughly mixes fuel and air for more complete, clean combustion and fuel economy. 2. Iron is stronger and has a higher melting temperature than aluminum, allowing the top compression ring to be closer to the piston crown. The combustion dead zone is minimized and fuel economy is increased. • Equal thermal expansion of the piston and liner allows a closer fit, reducing piston slap.

Engine noise is reduced. 3. Keystone shaped compression rings reduce carbon buildup and ring sticking during light load and idle speed operation. Fewer service calls. 4• Oil sprayed into the piston gallery cools the piston crown, allowing higher combustion temperatures for more power output per c.i.d., less exhaust smoke and more efficient use of fuel. • Tuftride nitrate surface treatment holds lube oil and prevents scuffing. 5. Massive wrist pin and wedge shaped connecting rod boss

UUG3E*

The Pro's Choice has a heart of iron. increases effective bearing area to carry higher firing load. More power output. • Strong but light.

A 700 HP Lugger iron piston weighs only 8.7 lbs.

A competitive aluminum piston is 7.6 and a two part steel/aluminum is 9.7.

Iron pistons are just one of many technically advanced features making a Lugger the best marine engine value for your new vessel or repower project.

Contact your regional factory branch or Lugger dealer for more information and engineering advice.

West: 1-800-762-0165

Fax: 206-782-5455

Alaska: 1-800-478-3006

Northeast: 1-800-480-4223

Southeast: 1-800-843-6140 http://www.northern-lights.com 34 Maritime Reporter/Engineering News