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The Colt-Pielstick PA6B STC is the latest development of the PA6 engine, intended for ships requiring high-propulsion power combined with a lightweight installation. Available in 12-, 16-, 18-, and 20-cylinder configurations, the PA6B engine is designed specifically for the high demands of naval and commercial markets.
The PA6B engine features Sequential Turbo Charging (STC), which uses two turbochargers in parallel for efficient full-power operation and the use of only one turbocharger for low speed, high-torque operation. The use of one turbocharger maximizes the available energy from the whole engine instead of only half the engine, as is typically done. The extra exhaust energy (double) boosts the turbocharger away from surge conditions and delivers the necessary combustion air to allow engine operation in areas otherwise unattainable.
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The concept behind the FM-MAN 27/38 won the prestigious International Seatrade Award for Innovation in 1996. With its simplified and compact design, efficiency, few parts, and low maintenance requirements, the genset and propulsion versions of the 27/38 have the ability to significantly improve the effectiveness of any aspect of ship operations and/or cargo handling.
All support functions %u2014 oil and water pumps, coolers, filters, and safety and regulator valves %u2014 are housed in a single front-end box for easy access and maintenance. The engine is lower and shorter than the other longstroke engines in its power class. It can be installed in restricted engine room areas. The L27/38 is designed for 20,000 to 25,000 service hours between overhauls, and requires only minimal maintenance. Each complete cylinder assembly can be removed as a unit for maintenance or replacement, without requiring a large overhaul height. The L27/38 meets IMO NOx emission limits. Its automatic lube oil filter eliminates the disposal problems associated with conventional paper filter elements.
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The Colt-Pielstick PC4.2B engine is the latest design of the PC4 family of engines. As a result of continued research and service experience, the PC4.2B engine has achieved a reduced specific fuel consumption. Like the proven PC product line, the PC4.2B features high engine plant availability and reliability, low manning levels, and ease of maintenance. The PC4.2B engine can be resiliently mounted.
Colt-Pielstick PC4.2B Ease of Maintenance Features
- Bolt tensioning accomplished through use of hydraulic tools
- Numerous quick disconnects are used in fluid handling and drain systems
- Crankcase and valve gear accessible through hinged inspection doors
- All electrical and pneumatic inputs routed to common junction boxes
- Major components readily accessed for visual inspection and maintenance
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With over 840 engines in operation, the Colt-Pielstick PA6 is respected worldwide for its reliability and its incredibly advanced technology. This engine has been expanded to include the longstroke %u201CB%u201D version, which is 25 percent more powerful than the PA6. The PA6B has a redesigned connecting rod, crankshaft, cylinder head, and liner with an anti-bore polishing ring. In addition to excellent fuel consumption, the PA6B engine already meets the EPA's stringent Tier II emissions standards going into effect in 2007.
All feed pumps (fresh water, lube oil, and fuel oil) are driven by the engine. The lubricating circuit including the oil filter is fully integrated into the engine. This results in increased reliability, safety, and simplified installation. The PA6B engine incorporates an integrated combination plate heat exchanger (Combi-Cooler) for cooling both lube oil and the water cooling loop.
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Crankcase of 8 cylinders in Line, with inspection doors on both sides. Suspended crankshaft with nine main bearings. Diagonally split connecting rods. Connecting rod and crankshaft tri-metallic bearings. Aluminium alloy pistons with three rings. Cast individual cylinder heads, with four valves. Wet type cylinder liners. Monoblock injection pump with in-built mechanical governor. Direct injection. Cooled exhaust manifolds. Thermostatic valves. Raw water pump. Heat exchanger. Electric or pneumatic starter. All services driven by gears. High performance turbocharger. Supercharged air cooling by fresh water.
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Crankcase of 12 V-cylinders, with inspection doors on both sides. Suspended crankshaft with seven main bearings. Diagonally split connecting rods. Connecting rod and crankshaft tri-metallic bearings. Aluminium alloy pistons with three rings. Cast individual cylinder heads, with four valves. Wet type cylinder liners. Monoblock injection pump with in-built mechanical governor. Direct injection. Cooled exhaust manifolds. Thermostatic valves. Raw water pump. Heat exchanger. Electric or pneumatic starter. All services driven by gears. High performance turbocharger. Supercharged air cooling by fresh water.
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Crankcase of 6 cylinders in line, with inspection doors on both sides. Suspended crankshaft with seven main bearings. Diagonally split connecting rods. Connecting rod and crankshaft tri-metallic bearings. Aluminium alloy pistons with three rings. Cast individual cylinder heads, with four valves. Wet type cylinder liners. Monoblock injection pump with in-built mechanical governor. Direct injection. Cooled exhaust manifolds. Thermostatic valves. Raw water pump. Heat exchanger. Electric or pneumatic starter. All services driven by gears. High performance turbocharger. Supercharged air cooling by fresh water.
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Crankcase of 16 V-cylinders, with inspection doors on both sides. Suspended crankshaft with nine main bearings. Diagonally split connecting rods. Connecting rod and crankshaft tri-metallic bearings. Aluminium alloy pistons with three rings. Cast individual cylinder heads, with four valves. Wet type cylinder liners. Monoblock injection pump with in-built mechanical governor. Direct injection. Cooled exhaust manifolds. Thermostatic valves. Raw water pump. Heat exchanger. Electric or pneumatic starter. All services driven by gears. High performance turbocharger. Supercharged air cooling by fresh water.
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Engine model
No. of cylinders
12V
16V
20V
Cylinder arrangement
60°V
60°V
60°V
Bore/stroke mm
230/280
230/280
230/280
Max. output kW
4440
5920
7400
Max. speed rpm
1300
1300
1300
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No. of cylindersl 8V 12V 16V
Cylinder arrangement 90°V 90°V 90°V
Bore/stroke mm 165/185 165/185 165/185
Max. output kW 1120 1680 2150
Max. speed rpm 2000 2000 2000
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Engine model
No. of cylinders
8V
12V
16V
20V
Cylinder arrangement
90°V
90°V
90°V
90°V
Bore/stroke mm
165/190
165/190
165/190
165/210
Max. output kW
1100
2040
2720
3010
Max. speed rpm
1860
2100
2100
1800
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Electronically controlled ME/ME-C engines
Characteristics:
-reduced fuel consumption,
- better cylinder compensation,
- better acceleration,
Detailed observation and diagnostics of ME series engines also revealed:
- easier service,
- longer intervals between overhauls,
- easier gain of mean indicated pressure (MIP).
The operators of engines also indicated lower fluctuations in engine revolutions during stormy weather compared to fluctuations in engines with fuel injection controlled by distribution shaft. The fuel savings of the order of 4% were indicated in comparison to engines without electronic control.
Detailed specification:
The essence of the engines from this group is based on automatic and hydraulic system of fuel injection activation and on the control of exhaust valves. The activating devices are electronically controlled here, through determined number of controlling systems forming "Engine Control System".
Fuel injection in the engines of ME series is improved by supporting pressure device (Buster), which mechanically is a simpler device compared to fuel pumps used in traditional engines of MC series. The fuel plunger in engines of ME series is driven by piston activated by electronically controlled, hydraulically dosing oil valve, which is also the source of fuel in this case. Also the exhaust valve is, in engines of ME series, hydraulically opened, and closed by pneumatic shockabsorber.
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RT-Flex - Intelligent engines
Silniki
These engines are equipped with high pressure rails of fuel and oil (common rail) and electronic control.
The designed rails offer new options as far as the engine design and operation are concerned, among the others they:
1. Simplified mechanical subassemblies of the engine.
2. Introduced flexibility of injection and valves operation.
3. Increased movement dependability of the engine due to the use of the double engine safety system.
4. Gave higher efficiency in comparison to traditional engines.
5. Introduced many options of reducing exhaust gas emission.
In the engines of "flex" type the designers resigned from such generally used so far designing schemes like:
1. Fuel pumps of SULZER construction - one big pump for one cylinder.
2. Overload valves (forward - backward).
3. Distribution shaft.
4. Overload actuator.
5. Distribution shaft drive (three or four gear wheels of ~1500 mm diameter).
Rejecting the above subassemblies allowed to introduce innovative designing solutions, e.g.:
1. Injection pumps of Bosch type - for example for 7-cylinder engine there are just three small pumps generating fuel pressure for the rail.
2. The fuel rail - capable of keeping fuel pressure of ~1000 bar.
3. Injection control assembly - small hydraulic device enabling precise control of the injection parameters.
4. Oil rail - powered with two small piston pumps (for 7-cylinder engine), in which the pressure of ~200 bar is maintained.
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Characteristics:
- reduced fuel consumption,
- better cylinder compensation,
- better acceleration,
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The Engine & Machinery Division of Hyundai Heavy Industries Co.,Ltd. (HHI- EMD) has been supplying "One out of Three" of the world's two-stroke diesel engines for marine propulsion and power generation, and has always been striving to provide our valuable customers with high quality and most economical products. Our established reputation is well supported by our superb performance in the category of marine and stationary use of diesel engines since the start of production in 1978.
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Model S35 MC
Application Products:
Low-speed 2-ST propulsion engine Oil
Chemical Tanker and others
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Wärtsilä RT-flex96C and RTA96C low-speed marine diesel engines are tailor-made for the economical propulsion of large, fast container liners.
For all sizes of large, fast containerships from around 3000 up to more than 10,000 TEU capacity, at service speeds of around 25 knots, the RT-flex96C and RTA96C low-speed engines provide a comprehensive engine programme for power outputs from 25,320 to 84,420 kW.
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The Wärtsilä RT-flex84T and RTA84T low-speed marine diesel engines are tailor-made for the economical propulsion of very large crude oil tankers (VLCCs and ULCCs) up to more than 300,000 dwt.
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The Wärtsilä RT-flex60C low-speed marine diesel engines are tailor-made for the economical propulsion of container feeder vessels to serve the growing fleets of the major container lines.
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The Wärtsilä RT-flex82T and RTA82T low-speed marine diesel engines are tailor-made for the economical and reliable propulsion of large tankers, VLCCs and ULCCs of 200,000 tdw to more than 350,000 tdw.
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The Wärtsilä RTA48T, RT-flex58T, RTA58T, RT-flex68 and RTA68 low-speed marine diesel engines are tailor-made for the economical propulsion of tankers and bulk carriers from around 20,000 to more than 150,000 dwt. This covers all types from Handysize and Handymax up to Capesize and Suezmax.
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The Wärtsilä RTA48T, RT-flex58T, RTA58T, RT-flex68 and RTA68 low-speed marine diesel engines are tailor-made for the economical propulsion of tankers and bulk carriers from around 20,000 to more than 150,000 dwt. This covers all types from Handysize and Handymax up to Capesize and Suezmax.
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The Wärtsilä RT-flex82C and RTA82C low-speed marine diesel engines are tailor-made for the economical and reliable propulsion of Panamax containerships with capacities up to about 5000 TEU at a typical service speed of around 24 knots.
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Model L27/38
Application Products:
Medium-speed 4-ST Main propulsion
Marine Gen-set container carrierand others
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Model L21/31
Application Products:
Medium-speed 4-ST Main propulsion
Marine Gen-set container carrier and others
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The Wärtsilä 20 medium-speed engine offers a remarkable combination of state-of-theart design and top performance in a compact,space-saving package. With its virtually pipeless, operator-friendly “heavy duty” design, the engine has started a new era in the development of medium-speed engines.
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The Wärtsilä 38 was developed in response to a need in the market for an engine in the 400 mm cylinder bore class. The Wärtsilä 38 is a technologically advanced engine – a product that sets standards.
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Model V32/40
Application Products:
Medium-speed 4-ST Main propulsion
Marine Gen-set Drill Ship, FPSO, LNG ship and others
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The V250 proves it’s possible to meet the emissions compliance requirements of U.S. EPA Tier 2 without sacrificing fuel efficiency. In this new engine, improved fuel management, a new combustion system design and refined cooling together deliver fuel savings of as much as 6.5%, compared to our earlier engine designs. At the same time, the V250 meets the EPA’s new, more stringent emissions guidelines as well as Marpol Annex VI standards.
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