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12V16/24DF

Main Engine 4-Stroke · Main Engines (4-Stroke)

Class-certified type (DNV register) · technical data sheet not yet verified
1,320 kWPower
12Cylinders
160 mmBore
240 mmStroke

Regular maintenance and adherence to manufacturer specifications are crucial for ensuring the reliability and longevity of marine engines. MAN Energy Solutions’ 12V16/24DF is a prime example where meticulous upkeep can prevent common failures. For instance, incorrect valve clearance adjustments can lead to excessive stress on valve bridge guides, potentially causing engine breakdown. It’s essential to verify these clearances according to MAN’s specifications to avoid such issues. Another critical area is the connecting rod bolt preload; any inconsistency or gaps between the bolt head and the connecting rod can result in maintenance-induced failures. Following the updated tightening procedures from MAN Diesel & Turbo helps mitigate this risk. The 12V16/24DF also requires careful attention to lube oil cooler maintenance, as improper power tool usage can overstress these components. Visual inspections of all cooler bolts and nuts are necessary, with replacements made if any damage is detected. Additionally, the quality and treatment of coolant water must be monitored rigorously. Nitrite-based additives need strict monitoring to prevent operational damage, and continuous lube oil separator operation is mandatory for IMO NOx-retarded engines. Finally, after installing new fuel injection nozzles, it’s vital to verify that the opening pressure remains within specification. A significant drop in this pressure can indicate issues requiring immediate attention, such as a deviation in exhaust gas outlet temperature between cylinders. By adhering to these maintenance guidelines, operators of the 12V16/24DF can ensure optimal performance and reliability.

Specifications

Technical data.from datasheet

Every value below comes from the manufacturer datasheet or class-society record on file for this model.

ConfigurationIn-line, 4-stroke, turbocharged diesel engine
Bore x Stroke160 mm × 240 mm
Cylinders available5, 6, 7, 8, 9
Power at 1000 RPM5L: 450 kW; 6L: 570 kW; 7L: 665 kW; 8L: 760 kW; 9L: 855 kW
Power at 1200 RPM5L: 500 kW; 6L: 660 kW; 7L: 770 kW; 8L: 880 kW; 9L: 990 kW
Piston speed8 m/s @ 1000 rpm; 9.6 m/s @ 1200 rpm
BMEP (Brake Mean Effective Pressure)22.4 bar @ 1000 rpm; 20.7 bar @ 1200 rpm
Max combustion pressure170 bar
Compression ratio15.2:1
Swept volume per cylinder4.8 liters
Weight range9.5 to 13.1 tonnes
Dimensions (max)1 m (width) × 2.4 m (height) × 5.8 m (length)
Fuel specificationHFO up to 700 cSt/50°C; heavy fuel oil compliant
Engine type4-stroke, in-line, turbocharged diesel, single-acting
Marine classificationIMO Tier II compliant auxiliary/genset engine
Power (kW)1320
Speed (rpm)1200
Fuel TypeLNG/MDO (Dual-Fuel)
ConfigurationV
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Download datasheet (PDF) (3502 KB)
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