Making Waves

GE’s V250 Diesel Engine

Wabtec Marine (previously GE) V250 Diesel Engine

Wabtec Marine (previously GE) has been designing and building high-performance diesel engines for more than 40 years. Today, we’re one of the leading manufacturers of medium-speed diesel engines in the world. In our V250 marine engine, we’ve combined the best features of earlier engine designs with advancements proven to deliver efficiency, reliability and performance advantages
Fuel Saving while meeting IMO Tier II
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The V250 proves it’s possible to meet the emissions compliance requirements of IMO Tier II without sacrificing fuel efficiency. In this engine, improved fuel management, a combustion system design and refined cooling deliver fuel savings of as much as 6.5%, compared to our earlier engine designs.

Greater power density in a compact design
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A relatively large bore engine with a narrow overall width and lighter weight, the V250 packs a lot of power into its footprint. Among other features, its inlet and exhaust manifolds are compactly arranged between cylinder banks. Where space is at a premium, the trim design and high power-to-weight ratio of the V250 give it a clear edge.
Engineered for reliability and maintainability
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The V250 engine is designed not only for higher efficiency and lower emissions but also for improved reliability and maintainability. Designed with on-engine accessories, every critical component and system of the V250 was engineered, manufactured, tested, refined and validated extensively for reliability. For easier maintenance, a segmented camshaft, sectional exhaust manifold, unitized power assembly and other features simplify component removal and replacement. With impressive features, ratings and a full-power PTO, the V250 is sure to exceed your marine engine expectations. Wabtec Marine’s (previously GE) V250 diesel engines are available in 12-cylinder and 16-cylinder V configurations for mediumspeed duty with continuous power from 2,725 kW to 4,240 kW.

V250 engine systems

Advanced EFI

Designed for greater efficiency at varying speeds and loads, the V250’s electronic fuel injection features precise fuel control, increased pressure capability and refined timing. Optimization of the cam profile, injection start, injection volumes and flows, and control algorithms have produced a relatively simple system, proven reliable through extensive validation.

Sophisticated control

Our controller drives the fuel-injection system with advanced closing point detection for better fuel economy and emissions control. The system features improved diagnostics and display of all engine parameters and faults without the need for a laptop computer. Engine protection algorithms predict problems earlier to avoid engine damage.

Higher-efficiency turbocharger

We have taken a proven turbocharger design and leveraged the aerodynamics expertise of our aviation business to enhance it. Improved bearing strength, better rotor dynamics, a cooled housing and integrated packaging create a high-performance, high-reliability system. Turbocharger matching optimizes performance for various speed ratings.

Sturdy mainframe

The mainframe of the V250 engine features high-strength ductile-iron construction. The main and connecting rod bearing capacity provides greater reliability and durability, and improved ribbing in the cross-bolt area adds to stiffness and lowers vibration.

Heavy-duty crankshaft

Forged of high-quality steel and nitride-hardened for long life, the V250’s crankshaft has single-piece construction with no bolted joints. Large journal surface areas minimize loads, and dynamically balanced counterweights reduce stress for longer crankshaft life.

Operating Advantages

Improved power assemblies

Our redesigned power assembly meets the high-pressure demands as well as the stringent reliability requirements of the V250 engine while retaining an easy-to-maintain assembly concept. The unit’s refined flow path enhances combustion, fuel savings and reduced emissions. The cylinder head, liner, piston and connecting rod can be

Rugged cylinder heads

A one-piece casting, wall structure fully supported by the head gasket, thicker flame deck and resizing and relocation of cooling bores significantly improves the strength and design margins of the assembly’s cylinder head.

Forged connecting rods

Exceptional strength, high stiffness and large bearings are unique features of our connecting rods. The large bearing width and optimized oil groove in the bearing shell improve oil film thickness and pressure.

One-piece liners

The stiff, one-piece, mid-stop liner has an integral external water jacket that removes the possibility of water leaks. An anti-polishing ring provides a durable running surface, improving lube oil consumption and liner life. The top one-third of the liner is cooled.

Piston design

Our piston design meets the increased weight and pressure requirements of the V250 engine. The improved skirt-andpin boss provides better lubrication and guidance. With dynamics optimized through secondary motion analysis, the piston design lowers oil consumption, reduces blowby and lengthens oil life.

Segmented camshaft

The camshaft in the V250 is arranged in individual sections for easy inspection and maintenance. Forged and hardened camshaft lobes reduce wear. Oversized journal bearings decrease loads for longer camshaft life.

Better Fuel Efficiency
Greater Power Density
Higher Reliability and Maintainability

They’re all on board

It’s all here — in the technologically advanced, fuel-efficient, environmentally compatible diesel engine built by Wabtec Marine (previously GE).

It’s the product of mre than six years in development and testing and nearly six million megawatt hours in service.

And with customization to the marine industry and competitive pricing, it’s ready to meet your marine power needs.

The V250 Diesel Engine. Wabtec Marine’s (previously GE) experience, innovation and proven performance drives down your cost of operation.

V250 MDB Engine Specification.

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the Wabtec v250 MDB – Medium Speed Diesel Marine Engine

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