OceanSphereENGINES

18VW20

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

Class-certified type (DNV register) · technical data sheet not yet verified​‌⁠‍​​‍⁠⁠‌⁠⁠‍⁠‍‌‌⁠⁠‍
2,070 kWPower
18Cylinders
200 mmBore
280 mmStroke

Maintaining optimal performance and reliability is crucial for Wärtsilä’s 18VW20 engine. Regular inspections are essential to prevent common failures. For instance, continuous monitoring of balancing shaft temperature through Wärtsilä’s specialized system can help avoid costly damage. Additionally, ensuring proper ventilation by checking the function of pneumatic exhaust valves and upgrading older models to hydraulic versions is critical for longevity. Careful inspection of piston rings and cylinder liners every 4-8 weeks prevents severe wear. Proper fuel injection system maintenance, including inspecting nozzles for erosion, also ensures efficient operation. Regular checks can significantly extend the lifespan of this powerful engine, keeping it running smoothly at 1200 RPM or higher.

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)2070
Speed (rpm)1200
Fuel TypeHFO/MDO
ConfigurationV
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