Page 23: of Maritime Reporter Magazine (July 15, 1986)

The entire range of Gardner en- gines and spare parts is now avail- able in the U.S. from Gardner Die- sels (USA) in Houston. The range of the 6- and 8-cylinder covers power ratings from 62 to 335 bhp for pro- pulsion applications, and from 48 to 252 kva at 50 cycles or 53 to 280 kva at 60 cycles for auxiliary service.

Supporting Gardner engines is a network of 18 distributors in the

U.K., as well as overseas sales, ser- vice, and parts facilities. The Brit- ish-built engine will eventually be marketed through several geograph- ically spaced distributors in the

U.S., in addition to the Houston operation.

GENERAL ELECTRIC

Circle 23 on Reader Service Card

The fuel-efficient, four-stroke 7FDM marine diesel engines manu- factured by General Electric's Die- sel Power Products Division in Erie,

Pa., now offer ratings from 1,525 to 4,000 bhp. Its 8-cylinder model has an output of 1,525 bhp at 90 rpm, and a rating of 1,800 bhp at 1,050 rpm. The 7FDM 12-cylinder en- gines are rated 2,550 bhp at 900 rpm and 3,000 bhp at 1,050 rpm. The 16- cylinder models carry ratings of 3,400 bhp at 900 rpm and 4,000 bhp at 1,050 rpm.

GE's three-ring piston design is said to reduce lube oil consumption significantly. This design, using two compression rings and one oil con- trol ring, also reduces ring wear for longer periods between overhauls.

The development of turbocharg- ers that operate more effectively in marine service is said to improve acceleration characteristics and fur- ther improve fuel efficiency. The life expectancy of connection rod bearings and their crankshaft jour- nals has been increased with the development of a grooveless upper rod bearing half, while welded-in, stainless steel, 30-degree-value seats improve cylinder head life.

GEORGE ENGINE

Circle 24 on Reader Service Card

George Engine Company's "by- pass operation"—the upgrading of a

Detroit Diesel 149 Series engine from its normally aspirated opera- tion to a turbocharged, intercooled, blower-bypass configuration using the latest Detroit Diesel compo- nents—is said to provide a reduc- tion in fuel consumption of as much as 11.5 percent. From its facilities in

Baton Rouge, Morgan City, La- fayette, and Harvey, La., the com- pany also provides custom power packages and a broad range of ser- vices for marine and offshore appli- cations.

The blower-bypass is a simple butterfly valve arrangement that automatically diverts the incoming air around the Roots blower when turbocharger boost has reached a sufficient level. With the blower by- passed, it no longer imposes an accessory load on the engine; the horsepower that was previously re- quired is now available at the fly- wheel to do useful work.

The TIB configuration, with a smaller fuel injector, produces the same horsepower at the same rpm as the NA arrangement, but does it with significantly less fuel. Alterna- tively, the owner may elect to use larger injectors to achieve greater horsepower output, and still at a competitively low specific fuel con- sumption.

GRANDI MOTORI

Circle 25 on Reader Service Card

Grandi Motori Trieste, the diesel engine division of Fincantieri Can- tieri Navali Italiani, will introduce a number of new engine designs this year and in 1987. Most of them will be for marine applications or sta- tionary power plants.

One series is the GMT A320 me- dium-speed, four-stroke engine with outputs of 3,000 to 8,000 bhp at 720- 750 rpm, but with special features to insure improved performance at part loads. This range will use the latest bore-cooling technique for combustion chamber components, and utilize to best advantage the greater efficiency of the latest

Brown Boveri exhaust gas turbo-

Continued)

July 15, 1986

Marine Components for Precise Hydraulic &

Pneumatic Control.

Reliable, Efficient and

Proven Marine Valves—

From Parker.

Parker Colorflow® Valves assure precise and repeatable control in marine fluidpower systems. All are designed, manufactured, and tested to rigid tolerances to keep internal leakage to a minimum.

What's more, Parker offers more off-the-shelf options than any other manufacturer. This assures faster and more economical designing, installation, and delivery.

Specify Parker ParTrol/Colorflow® needle, flow and check valves, or Colorflow® pressure compensated fluid control valves for your next marine application — ship or shore.

For more Parker marine valve product information, call or write for Catalog

Packet F06.

Parker Hannifin Corporation

Hydraulic Valve Division 520 Ternes Avenue

Elyria, Ohio 44035 216/366-5200

Circle 288 on Reader Service Card

THE ROTARY ACTUATOR YOU

CAN DEPEND ON TO ROTATE,

SLEW, LIFT, TRANSFER, MIX,

OR LOAD — FROM PARKER.

Parker's rack & pinion actuators are built to out- perform and out-last all other actuators in the most demanding applications.

They have a proven record of success worldwide in the industrial, military, marine, and aerospace in- dustries. The U.S. Coast Guard, U.S. Navy, and NASA specify Parker actuators for their demanding applica- tions. In the marine industry, our actuators are being used to swing booms, open sea water valves, operate hatches, raise antennas, and perform many other functions.

Depend on Parker to have the right actuator for your next application.

For your free copy of our full- line marine catalog, write or call the Rotary Actuator Division or your local Parker Distributor.

Ask for Catalog packet K-39.

Parker Hannifin Corporation

Rotary Actuator Division 9948 Rittman Road

Wadsworth, Ohio 44281 Circle 290 on Reader Service Card

Pneumatic Controls And

Systems For Fixed Pitch & Controllable Pitch

Vessels.

Schrader Bellows top quality propulsion controls and systems allow the use of ship air to convert commands into precise, pneumatic signals that operate our clutch control panel.

This responsive, reliable pneumatic system uses one or more operator-control stations in circuit with a pneumatic clutch-control panel and various aux- iliary devices. Both direction and speed can be con- trolled with one simple lever movement.

If more than one operator-control station is used, auxiliary equipment allows command of the pro- pulsion-control system to be quickly transferred from one station to another.

For more information on Schrader

Bellows propulsion control systems, call or write today for our Propulsion

Controls brochure.

Schrader Bellows

Division of Parker Hannifin Corporation 200 West Exchange Street

Akron, Ohio 44309 216/375-5202 Circ|e 289 on Reader Service

Parker Takes the High Cost

Out of Mil-Spec Filters.

Parker Offers Many Designs Meeting the Demanding Requirements of

Military Applications. • Custom designs meeting Mil-S-17849 (duplex) • Commercial designs accepting elements conforming to:

Mil-F-24402 Mil-F-83860

Mil-F-81836 AN6235-4A

Mil-F-27656 AN6236

Mil-F-5504

Designed to meet MIL-S-901C & MIL-STD-167B.

For more information on

Parker low cost/high perfoi mance Mil-Spec Filters & elements, call or write our

Military Sales Manager for

Catalog Packet E-41.

Parker Hannifin Corporation

Filter Division 16810 Fulton County Road #2

Metamora, OH 43540 419/644-4311 Circle 287 on Reader Service Card

The Fluidpower Company