Four-Stroke Marine Engines
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FOUR STROKE MARINE ENGINES Engineering the Future - since 1758. MAN Diesel & Turbo HIGH PERFORMANCE PRODUCT RANGE

Four-Stroke Marine Engines Page 02 I 03 MAN Diesel & Turbo is the world’s leading provider of large-bore diesel engines and turbomachinery. Our portfolio includes four-stroke and two-stroke engines for marine and stationary applications, turbochargers and propellers, gas and steam turbines, compressors and chemical reactors. Our four-stroke engines offer propulsion and auxiliary power for all types of applications. We also provide dual fuel engines and complete propulsion packages. Around 50 percent of all global ocean-going trade is today powered by MAN engines. We are committed to...

Four-Stroke Marine Engines  Page 06 | 07 History made by pioneers When the M/S Selandia was launched in 1912 it was the first ocean-going ship with a diesel engine, built on a tradition of innovative engineering that went back to 1758. In the 1890s, MAN engineers helped Rudolf Diesel build the world’s first diesel engine. In just a few decades it would completely change the way ships were powered. Progress is change and change needs movement MAN engineers continued improving the diesel engine into the 21st century. We will continue to build on our tradition of innovation: responding to...

The compact high speed engine The MAN 175D diesel engine is a 12 cylinder V type with 175 mm bore for mechanical or electric propulsion and onboard power generation. Running from 1,500 to 1,900 rpm it features ratings from 1,440 to 2,220 kW. With its advanced Common Rail fuel injection system the engine combines upmost fuel efficiency with the lowest possible emissions, making it a perfect investment for the future. The MAN 175D high-performance engine is IMO Tier III compliant when fitted with MAN SCR (Selective Catalytic Reduction). Characterized by clear-cut design, the MAN 175D is easy...

Four-Stroke Marine Engines Page 10 I 11 Advanced efficiency for business or pleasure The MAN 175D is ideal for economical operation in ferries, offshore service and supply vessels, workboats, tugs, yachts and governmental ships. It combines dynamic partload operation with economical endurance. Designed from the outset considering high-level emission standards, the MAN 175D is one of the most versatile marine engines able to meet all the challenges of many different applications. Benefits .Advanced and robust Cutting-edge technology and proven reliability . Powerful and reliable Peak...

High speed performer The MAN VP185 diesel propulsion engine is a V type available with 12 or 18 cylinders with 185 mm bore. It runs on marine gas oil and has an output of 2,000 to 4,000 kW. Its class-beating power to weight ratio is 2.69 – 2.88 kg/kW. It is IMO Tier III compliant when fitted with MAN SCR (Selective Catalytic Reduction). This compact, high speed engine is easy to install. Its water-cooled exhaust system helps to maintain a low engine room temperature whilst the two-stage turbocharging arrangement provides a wide torque curve. Four-Stroke Marine Engines  Page 12 | 1

Four-Stroke Marine Engines  Page 14 | 15 Proven power and reliability The MAN VP185 has proven itself in many applications, from fast patrol boats to luxury yachts. In terms of performance, it has one of the highest power densities on the market. At the same time, its operation is simple and reliable which is essential in boats with small crews. The MAN VP185 is an ideal propulsion choice for high speed coastal and offshore patrol vessels. For naval vessels it provides a high technical readiness level, outstanding reliability with low acoustic and thermal signatures. .. Compact size...

Reliable propulsion power The MAN L21/31 is an inline diesel engine for propulsion or power generation. It is available with five to nine cylinders with 210 mm bore. It runs on MGO, MDO and HFO, and has an output of 1,000 to 1,980 kW. When fitted with MAN SCR (Selective Catalytic Reduction), it complies with IMO Tier III regulations. This engine features a jet assist device that supports the rapid acceleration in partial load operation of the main marine engines. This improves the maneuvering characteristics by increasing the charge air pressure of the turbocharger. With its outstanding...

Four-Stroke Marine Engines  Page 18 | 19 Superior load change application and long TBOs Many years of experience with the propulsion concept, together with customers’ requirements for reliability, economy and technical advancement has resulted in this attractive 1000-rpm engine with a cylinder output of 220 kW (GenSet). The MAN L21/31 engine is the ideal power source for small to medium sized tankers, cargo vessels, ferries, RoRo vessels, large fishing vessels, tugs, workboats and supply vessels. .. Convenient Power Take-Off (PTO) .. .. 100 % PTO is possible from either end of the engine. A...

Economical power generation The MAN 23/30DF is an inline dual fuel engine for power generation or propulsion available with five to eight cylinders with a bore of 225 mm and a stroke of 300 mm; the crankshaft speed is 720, 750 or 900 rpm. It runs on marine gas oil (MGO) and liquefied natural gas (LNG) and has an output of 625 to 1,200 kW. Based on the popular MAN 23/30 conventional diesel GenSet, the MAN 23/30DF is ideal for many applications requiring economical power, reliability and full compliance with IMO Tier III regulations. Four-Stroke Marine Engines  Page 20 | 21

Four-Stroke Marine Engines Page 22 I 23 A practical solution available as retrofit With over 14,000 MAN 23/30 GenSets in service around the world it makes perfect sense to offer the MAN 23/30DF as an economical retrofit solution. The MAN 23/30DF continues the GenSet's tradition of easy maintenance and long time between overhauls. The MAN 23/30DF's robust monoblock engine is made of cast iron. The engine frame and underslung crankshaft restrict combustion and inertia forces to within the same component, enhancing reliability, durability and availability. Benefits . Classic engine design and...