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MARINE PRODUCT HANDBOOK

MARINE PRODUCT HANDBOOK
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MARINE PRODUCT HANDBOOK MEDIUM SPEED DIESEL ENGINES 368 - 3530 kW [500 - 4800 ps] Call for Yanmar solutions

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Blue Sky, Blue Ocean.

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YANMAR Power Solution, for Good Mileage and Good Environmental Goals Earth Friendly Life Cycle Value Environmental performance Marine propulsion diesel engine [ Bore:165-330mm ] _ 10 Marine auxiliary diesel engine [ Bore:160-330mm ] Marine auxiliary diesel engine [ Bore:130-155mm ] Marine compressor Amagasaki plant Worldwide service network

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Power Solution contributes to work Cycle Value " and “ Harmony with the environment ” Harmony with the Environment — IMO Emission Limits — IMO NOx Emission Limits_ The pollution of the atmosphere by hazardous substances released from marine diesel engines has become a major global issue. The release of hazardous substances into the atmosphere by ships is regulated by the International Convention for the Prevention of Pollution from Ships (MARPOL 73/78). Annex VI: Prevention of Air Pollution from Ships was later passed in September 1997. As a result, the regulation of NOx emission levels...

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NOx Regulated Value ( g/kWh ) As almost every human social activity can be a cause of further deterioration of environment by air pollution and global warming, the search for solutions naturally requires broad international cooperation. YANMAR is developing all our engines in harmony with the environment by reducing NOx, CO2, SOx and other emissions, and taking antipollution measures. Furthermore, YANMAR has been dedicated to developing its own leading-edge technologies and products in pursuit of resource and energy efficiency. We have pursued the continuous improvement of Life Cycle Value...

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YANMAR EcoDiesel is addressing the stricter IMO Tier II regulation NOx limits with improvements to combustion technologies of engine. In general, when NOx emissions are reduced, the fuel consumption and smoke generation will increase, adversely affecting both environment and management. As a solution to this, YANMAR has employed “the ASSIGN Combustion System", which is an innovative state-of-the-art technology, and “the High Pressure Miller Cycle System". These systems improve the fuel consumption and smoke generation in addition to reducing NOx emissions. YANMAR marine diesel engines...

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—I Nexus —| Geometric —I Injection —I Scattering —I Space —I Available Geometric nexus Distributed fuel injection Available combustion chamber space ■ Staggered Layout Multi-Hole Nozzle By staggering the layout and using multiple injection holes, this design achieves sufficient total injection area and improves air utilization. ■ Air Flow Motion The optimally shaped air intake port generates a suitable swirl (votex flow) in the combustion chamber as well as a squish in the compression stroke. This promotes fuel / air mixing, improving combustion efficiency. Intake Swirl and Squish • Some...

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High Pressure Miller Cycle System ■ Miller Type Cam Reduced air temperature before combustion → Decreasing NOx With the miller type cam in its intake stroke, the miller cycle closes the intake valve earlier than conventional combustion. By finishing the intake stroke earlier, the intake air expands and temperature in the cylinder decreases, and by reducing air temperature before combustion in the next compression stroke, the NOx emission is reduced. Exhaust Valve Intake Valve Valve lift Miller Cycle Intake Valve EVO: Exhaust Valve Open IVO: Intake Valve Open EVC: Exhaust Valve Close IVC:...

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■ High Pressure Ratio Turbocharger Recovery of pressure in the cylinder → Improved fuel consumption Using the method of finishing the intake stroke earlier alone decreases the air quantity charged in the cylinder, resulting in decreasing the cylinder pressure and worsening the specific fuel consumption. Increasing the intake pressure by high pressure ratio turbocharger during the short intake stroke ensures the quantity of charged air and fixes the cylinder pressure to restrain the increase of the specific fuel consumption. 400 300 200 Engine Load (%) ■ Relationship between Specific Fuel...

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Marine Propulsion Diesel Engine Line-up

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Propeller Type Marine Gear Model Offset Reduction Gear Ratio Marine Gear Dry Weight ■ Dimensions [ mm ] / Weights [ kg ] Engine Model The engine dry weight and outline may differ depending upon the specifications and attached accessories.

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■ Rated Power■ Standard Marine Gear Propeller Type ■ Dimensions [ mm ] / Weights [ kg ] Engine Model Engine Model The engine dry weight and outline may differ depending upon the specifications and attached accessories.

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Engine Model [ Bore:165-330mm ] The engine dry weight and outline may differ depending upon the specifications and attached accessories.

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■ Standard Marine Gear Propeller Type ■ Dimensions [ mm ] / Weights [ kg ] Engine Model The engine dry weight and outline may differ depending upon the specifications and attached accessories.

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Engine Model [ Bore:165-330mm ] The engine dry weight and outline may differ depending upon the specifications and attached accessories.

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Propeller Type for C.P.P. for F.P.P. Marine Gear Model Offset MGR8044V96 MGN8044V96 Engine Model The engine dry weight and outline may differ depending upon the specifications and attached accessories.

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Engine Model [ Bore:165-330mm ] The engine dry weight and outline may differ depending upon the specifications and attached accessories.

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Propeller Type for F.P.P. Marine Gear Model Offset YXH-240-1 YXH-250L The engine dry weight and outline may differ depending upon the specifications and attached accessories.

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■ Rated Power Engine Model Above generator capacity will vary according to actual generator efficiency. ■ Dimensions [ mm ] / Weights [ kg ] Engine Model The engine dry weight and outline may differ depending upon the specifications and attached accessories.

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6N165LW Generator Capacity 320~480k\ e ■ Rated Power Engine Model Above generator capacity will vary according to actual generator efficiency. • 900m in-1: for HFO Application Only. • lOOOmin-1: for MDO Application Only. ■ Dimensions [ mm ] / Weights [ kg ] Engine Model [ Bore:160-330mm ] The engine dry weight and outline may differ depending upon the specifications and attached accessories.

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