Page 27: of Maritime Reporter Magazine (August 1986)

PROPULSION

UPv»/\TK

M.A.N.-B&W Offers Cost-Saving

Systems For Their MC Engines —New Brochures Available

L60MC S60MC K80MC • "V;:1

T « •m • i •cM."' f * if - t .!

M r •i i y ^ * 11 . k " f4 \ hi i :

Jil

Cross-section drawings of K, L and S-MC engines. Courtesy of M.A.N.-B&W Diesel A/S

With their line of MC engines well-established in the marine in- dustry, M.A.N.-B&W Diesel A/S is now focusing on the continuing ex- pansion of their engine program and its application possibilities, includ- ing the use of turbo compound sys- tems, which have kept pace with the increased specialization in the ship- building sector.

The current range of M.A.N.-

B&W two-stroke engines comprises three variants of long-stroke en- gines—the K-MC, L-MC and S-

MC.

As a new feature which will ex- pand opportunities for the applica- tion of MC-engines, a special ver- sion designated the MC-GI, is now being introduced. The MC-GI en- gine (GI stands for gas injection) will, through the application of a unique high pressure gas injection technology, enable the use of natu- ral gas and other combustile gases in the engines at outputs and thermal efficiencies identical to those of cur- rent heavy fuel burning MC-en- gines.

This system, which has been demonstrated in operation on a full scale 35MC engine and approved by the classification societies, now rep- resents an economically attractive propulsion alternative for LNG car- riers and for stationary power plants.

Realizing that the engine process itself needs only a certain turbo- charger efficiency, the high efficien- cy of the latest versions of the tur- bochargers (M.A.N. NA/TO and

BBC VTR-4A) makes it possible to obtain even lower fuel consumption by utilizing part of the exhaust gas in a Turbo Compound System (TCS). (continued)

The Choice is Markey

Wilmington Transportation co.'s newest tug the 95' "PHILIP W." joins the fleet in handling many ships in these harbors. Once again Wilmington selects Markey deck machinery to give the tug the capability of working her chores more efficiently. Her Hydraulic stern Capstan and Gypsy Bitt Windlass are "MARKEY." How about yours? [(MARKEY)]

MARKEY MACHINERY CO., INC.

P.O. Box 24788, Seattle, Wash. 98124 79 S. Horton St., Seattle, Wash. 98134

Ph. 206-622-4697

I REPRESENTED BY

H.J,/ WICKERT & CO.. INC.. 1550 Burke St. • Unit D

San Francisco. Ca. 94124 • Ph. 415-647-3500

J.H. MENGE CO.. INC.. P.O. Box 23602

New Orleans. La 70183 • Ph. 504-733-4871 .J.H. MENGE CO.. INC.. 1011 World Trade Bldg. 1520 Texas Ave.. Houslon. Tx. 77002 • 713-224-9750

WILDEN AIR OPERATED

DOUBLE DIAPHRAGM PUMPS offer • No Electrical Connections • Abrasion Resistant • Self priming • Submersible • Variable volume and pressure • Portable • Simple Clamp band construction • Write for free literature and prices

In

Water. one stands alone

It also stands up to chemicals, grout, resin, oil, glue and low density powders.

The heart of the Wilden air-oper- ated double diaphragm pump is its unique air valve which shifts the air supply to both dia- phragms alternately with com- plete reliability under all condi- tions of head and flow.

Up to 90% solids and over 250' heads are no problem for the

WILDEN PUMP. Our double diaphragm design cuts velocity in pump to half total discharge velocity. The most abrasive slur- ries are handled with ease since there are no seals and no metal to metal contact.

Volume is infinitely variable by controlling air flow to pump, from a few gallons per minute to over 14,000 gallons per hour. No pressure relief valve is required and the pump can run dry inde- finitely.

Wilden pumps are available with wetted parts in aluminum, cast iron, stainless steel, and Hastel- loy C. Non-wetted parts in alu- minum or cast iron. Elastomers in Neoprene, Buna N, Nordel,

Viton®, and Teflon®.

Circle 110 on Reader Service Card

WILDEN PUMP Si ENGINEERING CO. 22069 VAN BUREN ST., P.O. BOX 845, COLTON, CALIFORNIA 92324 (714) 783-0621 I TELEX 676-452

Circle 346 on Reader Service Card

August, 1986 29

DECK AND AUXILIARY MACHINERY DESIGNING, BUILDING, REPAIRING