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12VW20DF-GS-60Hz

Auxiliary Engine (Generator Set) · Auxiliary Engines

Class-certified type (DNV register) · technical data sheet not yet verified​‌⁠‍‍​‌‌‌⁠⁠‍‌⁠‍‍‍‌‍⁠
1,260 kWPower
12Cylinders
200 mmBore
280 mmStroke

Typically found on large container ships and cruise liners, the 12VW20DF-GS-60Hz engine operates in a dual-fuel configuration, capable of running on LNG or heavy fuel oil. With a power output of 1260 kW at 1080 rpm, it ensures reliable operation across various marine environments. Regular maintenance is crucial to prevent common failures such as balancing shaft wear and turbocharger overheating at higher speeds, which can lead to significant downtime. Inspect the temperature of the balancing shaft bearings continuously, and ensure proper cooling systems are in place for high-speed operations. Additionally, check for signs of piston ring wear and maintain clean fuel supply to avoid issues with the injection system.

Specifications

Technical data.reference — unverified

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Bohrung × Hub200 × 280 mm
Hubraum pro Zylinder8,8 l
Leistung pro Zylinder (aktuell)185-220 kW (abhängig von Variante/Drehzahl)
Verdichtungsverhältnis15:1
Spezifischer Brennstoffverbrauch (SFOC)186-187 g/kWh (ISO-Bedingungen)
Motorkonfigurationen4L20, 5L20, 6L20, 8L20, 9L20 (nur Reihe)
Gewichte (Reihe-Motor)4L20: 6,8 t | 6L20: 8,3 t | 8L20: 10,5 t | 9L20: 11,1 t
Gewichte (Stromerzeuger)4L20: 14,0 t | 6L20: 16,8 t | 8L20: 20,7 t | 9L20: 23,8 t
Kolben-Mittenfluß-Geschwindigkeit8,4 m/s (900 rpm), 9,3 m/s (1000 rpm)
Ventile pro Zylinder2 Einlass + 2 Auslass
Configuration4-Takt, nicht-umkehrbar, turbogela­den & Ladeluftkühlung, Direkteinspritzung
Ausführungen verfügbarDiesel (W20) & Dual-Fuel (W20DF, seit 2011)
Liefermenge seit 1990er>7500 Motoren insgesamt; >6000 W20DF-Einheiten
Power (kW)1260
Speed (rpm)1080
Fuel TypeLNG/HFO (Dual-Fuel)
ConfigurationV
Genset Output (kW)1197
Genset Output (kVA)1496
Frequency (Hz)60
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