MARINE High speed propulsion engines
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MARINE High speed propulsion engines - 1

High speed propulsion engines

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MARINE High speed propulsion engines - 3

Contents MAN Marine Engines Light, medium and heavy duty operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 MAN Service: Competent and motivated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 MAN Environmental Awareness: Future-oriented and ecofriendly . . . . . . . . . . . . . . . . . . . . . . 5 MAN Warranty: Relaxing and calculable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Two years’ warranty on MAN service and parts: Higher quality, more time . . . . . . . . . . . ....

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MAN Marine Engines A reliable driving force At sea, ships and boats have to contend with elemental forces, while harbours require them to navigate precisely through the narrowest of corridors. Customer Benefits nnMaximum torque at the most fuel efficient point of torque across a large range of engine speed for a powerful and steady acceleration fuel consumption values and long service ­ intervals minimizing the TCO service network with rapid spare parts supply Light duty operation Medium duty operation Heavy duty operation In light duty operation (730–1,900  hp), MAN Engines offer...

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MAN Service Competent and motivated MAN is there for you from the outset . Where qualified guidance is needed for the installation, our experts are at your side with advice and practical assistance . Of course you can always rely on our worldwide service Qualified service centres provide you with fast and skilled servicing and repairs . Worldwide partners ensure a service network for marine engines . As you can see we are there whenever and wherever you need us MAN Environmental Awareness Future-oriented and eco-friendly At MAN, we attach very great importance indeed to eco-friendliness ....

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Characteristics Annual operating hours: s 1,000 Percentage of time at full load: s 20 % Average load application: s 50 % Typical applications ■ Season fishing ■ Escort boats and patrol boats ■ Ambulance boats ■ Police boats

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Characteristics ■ Cylinders and arrangement: ■ Operation mode: ■ Turbocharging: ■ Number of valves: nnFuel system: ■ Engine lubrication: ■ Type of cooling: ■ Engine control: ■ Fuel: 6 cylinders in-line 4-stroke diesel engine, watercooled Turbocharger with charge air intercooler and waste gate 4 valves per cylinder Common Rail direct fuel injection with electronic control Closed system with forced feeding, oil cooling and filtering Heat exchanger with engine and seawater circuit Electronic injection control (EDC) Electronic engine monitoring including diagnostic unit DIN EN 590

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MARINE High speed propulsion engines - 9

Type designation LE 443 LE 423 light duty Displacement Maximum output to DIN ISO 3046-1 Rated speed Maximum torque at speed Lowest specific fuel consumption1 Classifiable Exhaust gas aftertreatment IMO Tier II, EPA Tier 3 IMO Tier II, EPA Tier 32), C-Overall height - standard oil pan mm 1,096 D-Top of engine to crankshaft centre mm 674 E-Length of engine from front end to edge of flywheel housing mm 1,527 Average weight of engine ready for installation (dry) kg 1,215 For detailed examinations of installation dimensions, please order drawings from our factory.

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Torque Torque Specific fuel consumption Specific fuel consumption Propeller curve Propeller curve Maximum torque at most fuel efficient operating point

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light duty Characteristics ■ Cylinders and arrangement: ■ Operation mode: ■ Turbocharging: ■ Number of valves: nnFuel system: ■ Engine lubrication: ■ Type of cooling: ■ Engine control: ■ Fuel: 8 cylinders in 90° V arrangement 4-stroke diesel engine, watercooled Turbocharger with charge air intercooler and waste gate (1-stage: D2686 LE 426, 2-stage: D2868 LE 436) 4 valves per cylinder Common Rail direct fuel injection with electronic control Closed system with forced feeding, oil cooling and filtering Plate heat exchanger, seawater cooled Electronic injection control (EDC) Electronic engine...

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Technical features Lowest specific fuel consumption11 g/kWh 209 206 205 Classifiable - ✓ - Exhaust gas aftertreatment - - - IMO Tier II, IMO Tier II, EPA Tier 32>, 97/68/EC 1) Tolerance +5% according to DIN ISO 3046-1 2) For private use only Type designation B-Overall length C-Overall height 1,222 1,222 D-Top of engine to crankshaft centre E-Length of engine from front end to edge of flywheel housing Average weight of engine ready for installation (dry) 1,880 1,880 For detailed examinations of installation dimensions, please order drawings from our factory.

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Specific fuel consumption Specific fuel consumption Propeller curve Propeller curv Maximum torque at most fuel efficient operating point

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Specific fuel consumption g/kWh 240 230 220 Maximum torque at most fuel efficient operating point

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light duty Characteristics ■ Cylinders and arrangement: ■ Operation mode: ■ Turbocharging: ■ Number of valves: nnFuel system: ■ Engine lubrication: ■ Type of cooling: ■ Engine control: ■ Fuel: 12 cylinders in 90° V arrangement 4-stroke diesel engine, watercooled Turbocharger with charge air intercooler and waste gate (1-stage: D2862 LE 446/426, 2-stage: D2862 LE 456/436/476) 4 valves per cylinder Common Rail direct fuel injection with electronic control Closed system with forced feeding, oil cooling and filtering Plate heat exchanger, seawater cooled Electronic injection control...

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Technical features Type designation LE 446 LE 426 LE 456 Displacement l Maximum output to DIN ISO 3046-1 kW (hp) Rated speed rpm Maximum torque Nm Lowest specific fuel consumption 1) g/kWh Classifiable Exhaust gas aftertreatment IMO Tier II, IMO Tier II, EPA Tier 32>, EPA Tier 32>, Dimensions Type designation LE 446/426 LE 456/459 A-Overall width B-Overall length C-Overall height D-Top of engine to crankshaft centre E-Length of engine from front end to edge of flywheel housing Average weight of engine ready for installation (dry) For detailed examinations of...

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