Page 3rd Cover: of Maritime Reporter Magazine (July 1994)

Engine

Install A Nelson EcoVent Recirculator

And Eliminate The Noxious Mist Caused By

Diesel Crankcase Blowby.

Diesel engines. We love their might. We dread their mess—especially in engine rooms. Bui there is a solution. The Nelson EcoVent recirculator can ^ keep your diesel from mist-behavin! . You see, the Nelson EcoVent recirculator was — b - -m •« '•' fP' • , developed to prevent crankcase fumes from fouling 4 the air intake filter and coating the engine room with j^ps^f flg^ noxious mist from diesel crankcase blowby. ' f In fact, the Nelson EcoVent recirculator removes .'. 99% of the oil mist and airborne particles, so you can duct the now-clean blowby fumes to either the inlet side of the air cleaner, or the clean side for a completely closed system. The result? A

Nelson EcoVent recirculator system removes 100% of blowby mists and gases from the atmosphere without engine damage. No wonder it's used by the

U.S. Navy, Coast Guard, yacht owners, engine builders, packagers and work boat operators.

What's more, with the Nelson EcoVent recirculator, there's less oil consumption, installation is easy and maintenance is a snap. And you w on't find a more competitive price anywhere!

Best of all, with the Nelson EcoVent recirculator on duty, a messy engine room will never be mist.

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NELSON » tK .v^'jiH * » 1 T *• Lm & * , W T < if/1*1* * v * iV m mi lustWs, Inc. % t > * % 9 1

Circle 215 on Reader Service Card

Wartsila SACM Diesel UD25 L6 auxiliary engine. charged system and a B version with improved performance. The PA en- gines are also available in gas ver- sion.

The medium speed PC type is used for merchant marine (propul- sion); navies (propulsion); and for diesel power plants (up to 200 MW).

The PC range of medium speed die- sel engines offer two cylinder bores: • PC2.400 rated from 3,300 kW to 12,600 kW (4,490 hp to 17,135 hp) and from 500 to 530 rpm in two versions: PC2.6-400 rated at 550 kW/ cyl. (747 hp/cyl.) and PC2.6B-400 rated at 630 kW/cyl. (857 hp/cyl.). • PC4.570 rated from 6,625 kW to 23,850 kW (9,000 hp to 32,435 hp) and from 360 to 430 rpm in three versions: PC4.2-570 rated at 1,215 kW/cyl. (1,650 hp/cyl.); PC4.2B-570 rated at 1,325 kW/cyl. (1,800 hp/ cyl.); and PC40L-570 rated at 1,325 kW/cyl. (1,800 hp/cyl.).

These engines run on diesel oil as well as heavy residual fuels. The

PC2 engines are available in a gas version. For more information on

SEMT Pielstick,

Circle 31 on Reader Service Card

WARTSILA bo@®HL

Wartsila Diesel produces me- dium-speed and high-speed diesel engines for both commercial and naval propulsion as well as auxil- iary power. Within the last IS months, Wartsila Diesel has intro duced two new engine models: the

Wartsila Vasa 20 and the Stork

Wartsila 38. The Vasa 20 engine is a heavy fuel auxiliary engine; th<

SW 38 is a heavy fuel diesel engini running at 600 rpm.

The Wartsila Vasa 32 engine no\ utilizes carbon scraper rings in th combustion chamber to decreas wear on the cylinder liner and als to further decrease the lube oil con sumption. The Wartsila Vasa 4 has recently been approved b

NAVSEA (the engineering group c the U.S. Navy) for use in Nav£ vessels having completed a 1,00 hour endurance test. Wartsila Di< sel says that all of its engines wi meet the NOx requirements s< forth by the IMO in 1995 by mear of built-in engine technology ar. without the need for any secondai methods. For more information c

Wartsila Diesel,

Circle 52 on Reader Service Card 46 Maritime Reporter/Engineering News

SEMT Pielstick offers high and medium speed four-stroke diesel engines, covering a range from 1,000 kW to 23,850 kW (1,300 to 32,500 hp).

The high speed PA type is used for merchant marine, naval propul- sion and power generation, and a variety of land applications. The PA range of high speed diesels offer three cylinder bores: • PA4.200 rated from 1,060 kW to 2,650 kW (1,440 hp to 3,600 hp) and from 1,200 to 1,500 rpm. The PA4- type is fitted with a variable geom- etry combustion chamber. • PA5.255 rated from 1,050 kW to 3,960 kW (1,430 hp to 5,385 hp) and from 900 to 1,000 rpm. • PA6.280 rated from 1,745 kW to 7,920 kW (2,375 hp to 11,000 hp) and from 720 to 1,050 rpm. The

PA6.280 type comprises a CL ver- sion (so-called long stroke), a STC version with a sequential turbo-